Article
Biochemistry & Molecular Biology
Shengzhong Rong, Lina Zou, Yang Li, Yue Guan, Huilin Guan, Ze Zhang, Yingcong Zhang, Hongmin Gao, Hongwei Yu, Fuyang Zhao, Hongzhi Pan, Dong Chang
Summary: A novel immunosensor was designed in this study with excellent detection performance and broad application prospects for detecting hepatocellular carcinoma-related biomarkers. By combining the advantages of different materials, high sensitivity detection of AFP was achieved.
BIOELECTROCHEMISTRY
(2021)
Article
Chemistry, Physical
Tahira Khatoon, Vishal Singh Chandel, Navshad Alam, Ameer Azam, Seema Srivastava, Salman Khan
Summary: In this study, LaxNi0.5Co0.5Fe2-xO4 nanoparticles were used as catalysts for Methylene Blue degradation. The nanoparticles were produced using the citrate-aided sol-gel auto-combustion method and exhibited homogeneous size distribution. The structural and optical characteristics of the nanoferrites were analyzed using X-ray diffraction and UV-visible reflectance spectroscopy respectively. Morphological and compositional studies were conducted using FESEM and EDX spectra, while BET analysis was used to determine the surface area. Raman Spectroscopy was employed to estimate the vibration parameters. The most efficient catalyst, La0.06Ni0.5Co0.5Fe1.94O4, achieved a 98.69% efficiency in 140 minutes. The use of La3+ substituted Ni0.5Co0.5Fe2O4 nanoferrites as catalysts offers advantages such as high recycling capability, stability, and simplicity of separation using an external magnet.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Murarilal Barik, Debashis Das, Pramoda Kumar Satapathy, Priyabrat Mohapatra
Summary: In this study, a graphene supported CeO2-TiO2 mixed oxide was prepared and tested for its photocatalytic degradation activity towards methylene blue (MB) dye. The mixed oxide was prepared with varying cerium loading from 2% to 10% compared to titanium using the sol-gel method, and graphene oxide (GO) was prepared using modified Hummer's method. The resulting nanocomposite adsorbent was synthesized through chemical reduction method with 2% GO loading relative to the mixed metal oxide, and its catalytic activity was tested under batch-wise adsorption using various parameters. It was found that the adsorbent catalyst nanocomposite with 5% ceria loading exhibited the best catalytic activity with pH-10 and time-75 minutes as the optimum conditions for MB photodegradation. Degraded product characterization was done using LC-MS technique, confirming the degradation of MB. The adsorption kinetics were investigated using pseudo-first-order kinetics and Langmuir adsorption model, with good fitting and R2 values of 0.986 and 0.993 respectively.
ENVIRONMENTAL ENGINEERING RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Mikhail A. Soldatov, Pavel V. Medvedev, Victor Roldugin, Ivan N. Novomlinskiy, Ilia Pankin, Hui Su, Qinghua Liu, Alexander V. Soldatov
Summary: This review discusses recent advances in the use of in situ and operando synchrotron spectroscopies to study photo-electrocatalytic reactions. The focus is on the establishment of operando reaction mechanisms using X-ray Absorption (XAS) and X-ray Photoelectron (XPS) Spectroscopies. The review also covers the operando cells required for conducting such experiments at synchrotron facilities and discusses classical and modern theoretical approaches for extracting structural information from X-ray Absorption Near-Edge Structure (XANES) spectra.
Article
Chemistry, Analytical
Miao Zhang, Yin Chen, Shi Gang Liu, Xingbo Shi
Summary: A highly efficient and sensitive electrochemical biosensor was developed for the monitoring of L. m contamination, which has a fast preparation time and good linear range and detection limit, and has been successfully applied to actual samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Biotechnology & Applied Microbiology
Mingzhou Wu, Shuqing He, Enna Ha, Junqing Hu, Shuangchen Ruan
Summary: In this study, a Cu2O@SiO2/MnO2-PEG nanocomposite was prepared via a wet chemical route. The composite exhibited excellent and stable photo-Fenton-like catalytic activity, making it suitable for the selective removal of organic pollutants in wastewater.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
M. Faisal, Jahir Ahmed, Jari S. Algethami, Mohammed Jalalah, Saeed A. Alsareii, Mabkhoot Alsaiari, Farid A. Harraz
Summary: Highly precise, determined and mind provoking steps are necessary for the design of efficient visible light photocatalysts. In this study, a new photocatalyst comprising of SnO2, polypyrrole doped carbon black (PPy-C) and gold nanoparticles (Au NPs) was successfully designed and characterized. The photocatalytic performance of the newly created Au@PPy-C/SnO2 trio combination was found to be the most efficient, with 93.18% removal of imidacloprid in just 20 min and complete destruction of MB dye in 10 min. The study also investigated the effects of different parameters on imidacloprid photodegradation.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Swati Sambita Mohanty, Arvind Kumar
Summary: The study describes the aerobic biodegradation of Indanthrene Blue RS dye by a microbial consortium immobilized on corn-cob biochar in a continuous up-flow packed bed bioreactor. The bioreactor achieved a maximum removal efficiency of 90% for the dye, showing potential for treating textile wastewater containing anthraquinone-based dyes with optimized parameters. This method was effective in both biosorption and biodegradation processes, demonstrating its usefulness in detoxifying textile wastewater.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Qiuhua Li, Qunhui Wang
Summary: This study reports the successful synthesis of flower-like Co(OH)(2)/g-C3N4 nanocomposite via a solid-state method, which shows promising catalytic performance and reusability for the degradation of organic pollutants. It has potential applications in wastewater treatment.
Article
Polymer Science
Shazma Habib, Monazza Serwar, Usman Ali Rana, Humaira M. Siddiqi, Saira Arif, Jose A. Coca-Clemente, Filipe Braga
Summary: The study presents a new method for synthesizing polyimides through solvent-free, thermal condensation approach, and the systematic characterizations and photocatalytic activity evaluation reveal that polyimides derived from M-FDA and M-ODPA exhibit high efficiency in degrading dyes.
IRANIAN POLYMER JOURNAL
(2021)
Article
Acoustics
Antonis Maroudas, Pavlos K. Pandis, Anastasia Chatzopoulou, Lambros-Roland Davellas, Georgia Sourkouni, Christos Argirusis
Summary: In this study, ultrasound irradiation, photocatalysis with TiO2, Fenton/Photo-Fenton reaction, and their combinations were investigated for the decolorization of industrial dyes to study their synergy. The experiments showed that the combination of different frequencies of ultrasound with the Photo-Fenton reaction can significantly enhance the degradation of azo dyes.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Optics
Yanqun Tong, Jiangyi Lu, Chao Wang, Bin Jiang, Liuxin Ding, Xudong Ren
Summary: Laser cavitation degradation has low efficiency without medium gain, but can be enhanced using Au nanoparticles (AuNPs) for degrading organic dye wastewater. The strong absorption characteristics of AuNPs and the mechanism underlying the enhancement were analyzed. The local field enhancement effect and shock wave signal were obtained, and the relationships among AuNPs, laser energy, irradiations number and degradation effect were investigated. Compared with other methods, AuNPs-enhanced laser cavitation approach exhibits remarkable controllability and higher degradation efficiency.
OPTICS AND LASER TECHNOLOGY
(2023)
Review
Energy & Fuels
Deepanshu Sharma, Ajay Kumar, Neetu Singh
Summary: Phytoinspired AgNPs are an important method for synthesizing nanoparticles, with applications in areas such as wastewater treatment and demonstrating high efficiency.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Multidisciplinary
Jinchen Dong, Tangchun Wang, Enze Xu, Feng Bai, Jun Liu, Zhiliang Zhang
Summary: In this study, hydrophobic SERS substrates were developed by synthesizing gold nanoparticles on cellulose filter paper. The substrates exhibited excellent sensitivity, reproducibility, and stability, and were capable of detecting methylene blue residues in lake water with high sensitivity.
Article
Chemistry, Physical
Evandro Bonifacio, Debora P. Facchi, Paulo R. Souza, Johny P. Monteiro, Ketul C. Popat, Matt J. Kipper, Alessandro F. Martins
Summary: This study presents an innovative adsorbent material obtained through dialysis and freezing-thawing cycles, resulting in a solid adsorbent with water insolubility and stability. The adsorbent showed high efficiency in removing dyes from water and exhibited favorable kinetic and equilibrium properties. The adsorption process was spontaneous, endothermic, and governed by hydrophobic interactions.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Environmental Sciences
Xiaoying Yuan, Guomin Geng, Xu Liu, Zucheng Wang, Zhaoxin Wang, Noor Samad Shah, Jianjun Song, Yingshu Guo, Lingshuai Kong, Shuhua Liu, Wenyu Zhang
Summary: In this study, a novel, highly efficient, reusable cobalt and nitrogen co-doped monolithic carbon foam (Co-N-CMF) catalyst was used to activate peroxymonosulfate (PMS) for ultrafast pollutant degradation. Co-N-CMF showed ultrafast catalytic kinetics and higher total organic carbon (TOC) removal efficiency. The study provides new insights into the development of monolithic catalysts for ultrafast wastewater treatment via PMS activation.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Correction
Environmental Sciences
Maria Aslam, Mbarki Sonia, Ghulam Abbas, Muhammad Shahid, Behzad Murtaza, Muhmmad Shafique Khalid, Saeed Ahmad Qaisrani, Hesham F. Alharby, Sameera A. Alghamdi, Basmah M. Alharbi, Yinglong Chen
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Faiza Rehman, Nazish Parveen, Jibran Iqbal, Murtaza Sayed, Noor S. Shah, Sabah Ansar, Javed Ali Khan, Afzal Shah, Farrukh Jamil, Grzegorz Boczkaj
Summary: The removal of norfloxacin, a widely used pharmaceutical and emerging water pollutant, was studied using various oxidative processes. The use of peroxides, in conjunction with UV-C and UV-C/Fe2+, significantly enhanced the degradation of norfloxacin. Among the processes tested, UV-C/Fe2+/HSO5- showed the best performance.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Engineering, Environmental
Behzad Murtaza, Asad Ali, Muhammad Imran, Abdullah A. Al-Kahtani, Zeid A. ALOthman, Natasha Natasha, Muhammad Shahid, Noor S. Shah, Muhammad Asif Naeem, Sajjad Ahmad, Ghulam Murtaza
Summary: Nano-zero valent iron (Fe-0) and copper (Cu-0) particles were used for batch scale removal of arsenic (As) from aqueous media. The Fe-0 exhibited higher surface area and pore volume compared to Cu-0, while the morphology of the particles differed. The Fe-0 showed excellent removal efficiency of As at pH 4 and demonstrated good stability and reusability.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Engineering, Environmental
Behzad Murtaza, Aqsa Naseer, Muhammad Imran, Noor S. S. Shah, Abdullah A. A. Al-Kahtani, Zeid A. A. ALOthman, Muhammad Shahid, Jibran Iqbal, Ghulam Abbas, Natasha Natasha, Muhammad Amjad
Summary: Nanocomposites of almond shells biochar (BC) with zerovalent bismuth and/or copper (Bi-0/BC, Cu-0/BC, and Bi-0-Cu-0/BC) were synthesized for efficient removal of Cr from aqueous solution. The synthesized nanocomposites showed high Cr removal efficiency, with Bi-0-Cu-0/BC nano-biocomposites exhibiting the best performance. The prepared nanocomposites effectively removed Cr at low concentrations and acidic pH levels, and Bi-0-Cu-0/BC showed greater stability and reusability.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Environmental Sciences
Muhammad Shahid, Abdullah A. Al-Kahtani, Zeid A. ALOthman, Irshad Bibi, Tasveer Zahra Tariq, Natasha Natasha, Sana Khalid, Nabeel Khan Niazi, Behzad Murtaza
Summary: Untreated wastewater used in agriculture poses severe ecological risks due to various pollutants. This study examined the effects of mixing freshwater or groundwater with sewage water on soil and maize crop contamination. Results showed high levels of Cd and Cr in sewage water. Mixing freshwater or groundwater with sewage water increased soil content of As and decreased Cd, Cu, Fe, Mn, Ni, Pb, and Zn compared to sewage water alone. Maize accumulated PTEs in roots and shoots, with potential carcinogenic risks to livestock consuming contaminated fodder. Mixing water sources can be an effective strategy to minimize environmental/health hazards.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Environmental Sciences
Afshan Majeed, Muhammad Amjad, Muhammad Imran, Behzad Murtaza, Muhammad Asif Naeem, Husnain Jawad, Saeed Ahmad Qaisrani, Saqib Saleem Akhtar
Summary: This study aimed to assess the potential of quinoa stalks biochar (QSB) and its magnetic nanocomposite (MQSB) for Ni-immobilization and phytoremediation of sunflower. The results showed that the application of QSB and MQSB reduced Ni uptake and oxidative stress, leading to improved growth and yield of sunflower.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2023)
Article
Geosciences, Multidisciplinary
Muhammad Shahid, Sana Khalid, Natasha Natasha, Tasveer Zahra Tariq, Zeid A. Alothman, Abdullah A. Al-Kahtani, Muhammad Imran, Behzad Murtaza
Summary: Groundwater contamination by arsenic is a major concern, and this study found that Chishtian tehsil in Bahawalnagar district had arsenic levels exceeding the World Health Organization limit. Arsenic was also found in milk and human hair samples. Risk assessment revealed potential health hazards associated with the high arsenic levels in the groundwater.
PHYSICS AND CHEMISTRY OF THE EARTH
(2023)
Review
Chemistry, Multidisciplinary
Zia Ul Haq Khan, Taj Malook Khan, Amjad Khan, Noor Samad Shah, Nawshad Muhammad, Kamran Tahir, Jibran Iqbal, Abdur Rahim, Syed Khasim, Iftikhar Ahmad, Khadija Shabbir, Noor Shad Gul, Jianbo Wu
Summary: The recent advancement of nanoparticles (NPs) shows great potential for the effective treatment of various diseases, especially in cancer treatment. They have desirable properties, including small size, increased stability, high specificity, sensitivity, and efficacy, making them ideal for treating bone cancer. NPs can also improve the performance of materials, such as mechanical strength, hardness, conductivity, and sensors. Nanotechnology offers a promising option for treating complex health anomalies through anti-tumor therapy, drug delivery, and other methods.
FRONTIERS IN CHEMISTRY
(2023)
Article
Plant Sciences
Ghulam Abbas, Fiza Areej, Saeed Ahmad Asad, Muhammad Saqib, Muhammad Anwar-ul-Haq, Saira Afzal, Behzad Murtaza, Muhammad Amjad, Muhammad Asif Naeem, Muhammad Akram, Naseem Akhtar, Muhammad Aftab, Kadambot H. M. Siddique
Summary: Soil salinity, drought, and increasing temperatures have negative effects on crop productivity, with combined stress having a higher impact than individual stresses. This study found that the growth and yield of four quinoa genotypes were significantly decreased when exposed to combined drought, salinity, and high-temperature stress. The genotypes differed in their physiological and biochemical responses, with Puno and Titicaca showing higher tolerance compared to Vikinga. The findings highlight the importance of selecting and breeding quinoa varieties that can withstand multiple environmental stresses.
Article
Environmental Sciences
Kifayatullah Khan, Muhammad Younas, Muhammad Sajawal Khan, Xu Li, Muhammad Fawad, Noor Samad Shah, Jafar Ali, Sana Ullah, Muhammad Ayaz, Afsheen Maryam, Asmat Ali, Akhtar Zeb Khan, Sobhy Mostafa Ibrahim
Summary: Heavy metal pollution in the River Kabul in Pakistan was studied using analytical techniques to determine the levels, sources, and potential hazards of nine heavy metals. The results indicated prevalent metal contaminations in the river, primarily caused by industrial, agrochemical, mining, and domestic wastewater discharges. The findings highlight the need for strict regulation and control of anthropogenic wastewater discharge to protect the environment and public health.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Energy & Fuels
Muhammad Wakeel, Tasawer Hayat, Noor Samad Shah, Jibran Iqbal, Zia Ul Haq Khan, Ghulam Mustafa Shah, Atta Rasool
Summary: Energy is closely related to economic growth, industrialization, and social development. Pakistan is a developing country that currently faces an energy deficit of 6000 MW, leading to an annual expenditure of over US$7 billion on oil and gas imports. Despite its reliance on imports, Pakistan also has a potential substitute energy resource in bioenergy. This article provides an overview of Pakistan's biogas industry, exploring the current situation, potential, advantages, barriers, and future projections, as well as offering recommendations. Pakistan has significant biomass energy potential, with ample animal manure, crop residues, and municipal solid waste that can be tapped to generate biogas and meet more than 50% of the nation's power requirement. This study offers a sustainable solution to policymakers, strategic planners, and power generators in addressing the country's energy crisis without causing any environmental impact.
Review
Water Resources
Ashish V. Mohod, Malwina Momotko, Noor Samad Shah, Mateusz Marchel, Mohammad Imran, Lingshuai Kong, Grzegorz Boczkaj
Summary: This article evaluates the successful application of selected advanced oxidation processes (AOPs) - cavitation and photocatalysis - in wastewater treatment for the degradation of Rhodamine dyes. The study discusses reactor configuration, process parameters, and the effects of oxidants addition (hydrogen peroxide, ozone, persulfates) on degradation effectiveness as well as the degradation mechanisms. The best technologies achieve 100% degradation within 10-30 minutes. Rhodamine B is effectively degraded under highly acidic conditions (pH 2), while Rhodamine 6G requires basic conditions (pH 10). Hydrogen peroxide and ozone are the most effective oxidants. Ecological Structure Activity Relationships (ECOSAR) revealed acute toxicities of the intermediates and byproducts of the Rh dye.
WATER RESOURCES AND INDUSTRY
(2023)
Article
Chemistry, Multidisciplinary
Sanaullah Khan, Javed Ali Khan, Noor S. Shah, Murtaza Sayed, Muhammad Ateeq, Sabah Ansar, Grzegorz Boczkaj, Umar Farooq
Summary: This study investigates the occurrence of lindane in surface water from the Peshawar valley, Pakistan, and finds that 17.3% of the tested samples are contaminated. The maximum concentration of lindane is found to be 2.60 μg L-1. The study also examines the degradation of lindane in water samples and shows that solar/TiO2 photocatalysis with the presence of H2O2 and PS is an effective method for its removal.
Article
Water Resources
Jibran Iqbal, Noor S. Shah, Javed Ali Khan, Mohamed A. Habila, Grzegorz Boczkaj, Asam Shad, Yousef Nazzal, Ahmed A. Al-Taani, Fares Howari
Summary: A novel bimetallic catalyst, bismuth/zero valent cupper (Bi/Cu0), has been prepared for the efficient degradation of blood-lipid regulatory drug clofibric acid (CFA). The addition of bismuth improves the reusability and stability of the catalyst. The mechanism of CFA degradation by the catalyst is revealed by analyzing the reaction products and rate constants. The experimental results demonstrate the effective removal of CFA by the catalyst in real water samples.
WATER RESOURCES AND INDUSTRY
(2023)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
