Article
Chemistry, Multidisciplinary
Xiangpeng Gao, Huiqing Yin, Mingyang Li, Lili Xin, Hao Zhang, Hongming Long
Summary: In this study, a novel organic composite photocatalyst (CCS/Bent-DETA) was synthesized and applied for the degradation of methyl orange (MO) under UV light irradiation. The structure, morphology, and optical properties of CCS/Bent-DETA were characterized, and the effects of various factors on the photocatalytic efficiency of MO degradation were investigated. It was found that CCS/Bent-DETA showed excellent performance, achieving 100% removal rate of MO after 120 minutes of reaction at pH 2.0. The study also provided insights into the adsorption process, reaction kinetics, stability, and regeneration potential of the photocatalyst.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Environmental
Abdul Naeem, Tooba Saeed, Murtaza Sayed, Bashir Ahmad, Tahira Mahmood, Muhammad Farooq, Fouzia Perveen
Summary: This study reports the synthesis of Zirconium metal-organic framework and chitosan composite of zirconium metal-organic framework for potential adsorption of methyl orange and methylene blue dyes. The synthesized materials were characterized and showed enhanced adsorption capability. Kinetic models indicated that pore diffusion dominates in the adsorption of methylene blue while film diffusion has a greater involvement in the adsorption of methyl orange. Photocatalytic degradation study showed the significance of pH and H2O2 in the degradation process and the formation of less toxic transformation products.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Engineering, Chemical
Shao-zhong Hu, Ting Huang, Nan Zhang, Yan-zhou Lei, Yong Wang
Summary: The discharge of wastewater rich in heavy metals and organic substances leads to ecosystem deterioration, environmental pollution, and food pollution. Metal organic frameworks (MOFs) are highly promising materials for wastewater treatment due to their large specific surface area and pore volume, as well as their structure designability. In this study, a novel adsorbent (PEI@UiO-66-NH2) was synthesized and it exhibited improved chemical stability and increased adsorption sites compared to common UiO-66-NH2. The adsorption behaviors of PEI@UiO-66-NH2 were systematically studied, and it was found that it can reach adsorption equilibrium within 5 minutes for Pb(II) and methyl orange (MO). The theoretical adsorption capacities for Pb(II) and MO were found to be 692.80 mg/g and 497.51 mg/g, respectively. The study also established dynamic theoretical adsorption models, providing guidance for scale-up experiments in wastewater treatment. PEI@UiO-66-NH2 showed excellent performance in recycling Pb(II) and MO, indicating its promising application in removing wastewater contaminants.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Ruyue Guo, Jiayuan Chang, Huayi Li, Jie He, Peng Pan, Zhengchun Yang, Jun Wei
Summary: In this study, Cu2O@Cu composites were synthesized using a two-step liquid-phase reduction method for adsorption of methyl orange pollutant. The adsorption process followed pseudo-first-order kinetic and Freundlich isotherm, with the maximum capacity of the adsorbent being 498 mg/g. The adsorption mechanism was identified as electrostatic attraction between the positively charged adsorbent and the sulfonic acid group of MO.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Shinichi Hata, Yuki Sakai, Nanami Tani, Sho Kitano, Hiroki Habazaki, Akari Hirakawa, Hinako Tanaka, Yusuke Inomata, Toru Murayama, Masatake Haruta, Yukou Du, Yukihide Shiraishi, Naoki Toshima
Summary: The preparation of uniformly alloyed bimetallic particles in the Pd-Rh system is difficult. However, we propose a method to accumulate Pd-Rh alloy particles on the ZIF-67 surface under mild conditions, and demonstrate their application as a heterogeneous catalyst for dye degradation.
ACS APPLIED NANO MATERIALS
(2022)
Article
Environmental Sciences
Tao Hua, Dongmei Li, Xiaoman Li, Jialiang Lin, Jiliang Niu, Jianhua Cheng, Xinhui Zhou, Yongyou Hu
Summary: In this study, a novel amino-modified mesoporous-structured aluminum-based metal-organic framework adsorbent was developed for dye sewage treatment. Compared to using organic amino ligands directly, this strategy is more cost-effective and provides more active sites for enhanced adsorption efficiency.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Ioanna A. Vasiliadou, Thaleia Ioannidou, Maria Anagnostopoulou, Antonios Polyzotou, Dimitrios Papoulis, Konstantinos C. Christoforidis
Summary: A novel composite material containing UiO-66 and palygorskite clay mineral was synthesized using a facile one-pot synthesis process. The composite exhibited excellent adsorption efficiency and stability, demonstrating its potential as an advanced absorbent for MO removal.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Atefeh Ehsani, Hassan Aghdasinia, Mahdi Ebrahimi Farshchi, Sadegh Rostamnia, Alireza Khataee
Summary: Sodium alginate/carboxy-methyl cellulose/Cu-based metal-organic framework (SA/CMC/Cu-BDC) nano-composite beads were prepared and characterized. The composite beads exhibited high surface area and showed promising adsorption capacity for Tetracycline (TC) antibiotic. The adsorption process followed Langmuir isotherm model and pseudo-second-order kinetic model. Thermodynamical analysis suggested that the adsorption of TC onto the composite beads was spontaneous and endothermic. The interactions of hydrogen bonding, electrostatic, and 7C-7C played significant roles in the adsorption process.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Mengting Wang, Siyu Day, Zhongkui Wu, Xiaodong Wan, Xiaolan Ye, Baotuo Cheng
Summary: A new metal-organic gel with good adsorption properties and resistance was prepared using a water-phase method, showing promising application in dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Chemical
Komal Saini, Amrita Kumari, Abhisek Sahoo, Kamal Kishore Pant, Thallada Bhaskar
Summary: Eggshell-templated lignin carbon material exhibits high adsorption capacity and removal efficiency for dyes, with spontaneous adsorption nature.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Applied
Jinyue Yang, Jingkang Wang, Xiunan Zhang, Miao Chen, Beiqian Tian, Na Wang, Xin Huang, Hongxun Hao
Summary: A novel HOF material, PFC-1, was prepared and applied for the removal of organic dyes RhB and MO from wastewater. PFC-1 demonstrated excellent removal ability, with different adsorption mechanisms for RhB and MO. The results suggest the potential application of HOFs in environmental remediation.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Environmental
Melvin S. Samuel, V. S. Kirankumar, E. Selvarajan
Summary: Aflatoxins are toxic substances commonly found in contaminated commodities and pose a health risk to humans and animals. This study developed a novel NH2-Zn(BDC)(DMF)MOF composite with high adsorption capacity for AFB1, showing potential for use as an effective adsorbent for Aflatoxin removal.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Siti Zu Nurain Ahmad, Wan Norharyati Wan Salleh, Nor Hafiza Ismail, Nur Aqilah Mohd Razali, Rafidah Hamdan, Ahmad Fauzi Ismail
Summary: The synthesis of novel ZIF-L/GO adsorbents with different loading percentages of GO has shown high adsorption capacities for Cd(II) and confirmed the adsorption mechanism through Langmuir isotherm and pseudo-second-order kinetic model.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Inorganic & Nuclear
Lihui Fan, Shengjie Lin, Xinxin Wang, Lianglan Yue, Tingting Xu, Zhenzhen Jiang, Yabing He
Summary: The solvothermal assembly of copper(II) cations and 5-(pyridine-3-yl)isophthalate linkers with different positions of substituted methyl groups produced four ligand-induced metal-organic framework (MOF) isomers. These isomers showed diverse selective gas adsorption properties and framework flexibilities heavily dependent on the methyl position, with the capability of effectively separating binary gas mixtures. Altering the methyl position led to tailored uptake capacities, adsorption selectivities, and framework hydro-stability. This study highlights the significance of the positional effect of functional groups in modulating MOF structures and properties.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Chang Du, Xiaodi Chen, Hongping Wu, Zilu Pan, Chunyan Chen, Guanqun Zhong, Changqun Cai
Summary: The use of ionic covalent organic frameworks (ICOFs) enables efficient simultaneous removal of toxic organic dyes and metal ions from water. The adsorbent exhibits high adsorption capacities and can selectively target diverse mixed pollutants through size-exclusion and charge-selection.
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)