Article
Engineering, Environmental
Bin Yao, Wenqing Zeng, Avelino Nunez-Delgado, Yaoyu Zhou
Summary: In this study, iron and nitrogen co-doped biochar (Fe/N-BC) was synthesized and applied for the adsorption of ciprofloxacin (CIP) and Cu2+ in single and binary systems. The adsorption of CIP and Cu2+ was found to be competitive due to the similar active adsorption sites on Fe/N-BC. Furthermore, the co-adsorption of CIP and Cu2+ was pH-dependent, and pH adjustment could selectively separate CIP/Cu2+ from mixed solutions.
Article
Nanoscience & Nanotechnology
Hong Zeng, Yue Tang, Wenying Zou, Chunxiao Wang, Han Tao, Yuangen Wu
Summary: V6O13 nanobelts with good crystallinity and distinct facets were utilized to develop a colorimetric sensor for simultaneous detection of Cd(II) and Pb(II) in water samples. The sensor showed distinguished selectivity and a limit of detection of 1.89 μg/L for Cd(II) and 2.11 μg/L for Pb(II), with the capability to differentiate the presence of heavy metals within 20 minutes.
ACS APPLIED NANO MATERIALS
(2021)
Review
Environmental Sciences
N. Nirmala, V Shriniti, K. Aasresha, J. Arun, K. P. Gopinath, S. S. Dawn, A. Sheeladevi, P. Priyadharsini, Kathirvel Birindhadevi, Nguyen Thuy Lan Chi, Arivalagan Pugazhendhi
Summary: Access to clean water has reduced in recent years due to pollution and man-made activities. The adsorption method has advantages in wastewater treatment. Graphene-based adsorbents can adsorb and catalyze reactions simultaneously. Graphene aerogels are effective in removing heavy metals and dyes. Graphene composites have mesoporous and microporous structures with good adsorption efficiency.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Shaogang Hu, Jingping Hu, Yingfei Sun, Qian Zhu, Longsheng Wu, Bingchuan Liu, Keke Xiao, Sha Liang, Jiakuan Yang, Huijie Hou
Summary: The hybrid sludge conditioning strategy utilizing electrooxidation and Fe(II) addition proved effective in removing heavy metals from sewage sludge and industrial sludge, while also achieving sludge dewatering and stabilization. The process resulted in significant heavy metal removal rates along with pH decrease, ORP increase, and excellent dewatering performance, as well as pathogen inactivation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Yan Li, Liangmin Gao, Yu Wang, Shuo Cheng, Guowei Wu, Xuan Yang, Shunli Wan
Summary: Impregnating hydrated ferric oxide nanoparticles within biochar bearing charged oxygen-containing groups can improve adsorption performance for heavy metal cleanup, promoting dispersion and showing good adsorption selectivity. Furthermore, HNO3 treatment can enhance desorption efficiency of the adsorbent, providing a feasible regeneration method for fixed-bed column application.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Hong Ying, Wantong Zhao, Xionghan Feng, Chunhao Gu, Xiaoming Wang
Summary: This study investigates the effects of aging pH and time of AMD solution on Fe mineralogy and HMs speciation in sediments from Dabaoshan mining area. The results show that increasing AMD solution pH leads to higher total contents and reducible fraction of HMs in the sediments, while the oxidizable fraction of all HMs is negligible.
Article
Engineering, Environmental
M. S. V. Naga Jyothi, Afrah Harafan, Soujit Sen Gupta, N. Neethu, Gaurav Singhal, B. J. M. Ramaiah, Shihabudheen M. Maliyekkal
Summary: This study describes the fabrication of FeOOH-MnxOy bimetal-oxide granules using protonated chitosan as a template and reinforcing agent. The composite exhibits excellent adsorption capacity and stability, making it a practical adsorbent for removing heavy metal ions in water.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Engineering, Environmental
Mudi Zhai, Bomin Fu, Yuhui Zhai, Weijie Wang, Amy Maroney, Arturo A. Keller, Hongtao Wang, Jean-Marc Chovelon
Summary: The coexistence of pharmaceuticals and heavy metals poses a serious threat to aquatic environments. Adsorbents have been widely used for the simultaneous removal of pharmaceuticals and metals from water. The effectiveness of the adsorption process depends on various factors such as the characteristics of the adsorbents and contaminants, temperature, pH, inorganic ions, and natural organic matter. Bridging and competition effects play significant roles in promoting or inhibiting the adsorption process. This review provides valuable insights into the theoretical knowledge in this field and may contribute to the prevention and control of the coexistence of pharmaceuticals and heavy metals in wastewater.
Article
Chemistry, Multidisciplinary
Xingyu Ding, Xin Teng, Zhuxin She, Yi Li, Yuanyuan Liu, Ying Zhuang, Chaochao Wang
Summary: The content of heavy metals is an important indicator for assessing the quality and safety of salt. A new solid-phase extraction (SPE) material was designed in this study to remove and determine Pb(ii) from salt samples. The synthesized SPE fillers showed excellent adsorption performance for Pb(ii) at optimal salt concentrations, while also effectively removing Na(i) interference.
Article
Environmental Sciences
Mengyu Ma, Zhihao Ha, Xiangqun Xu, Chenyang Lv, Changyi Li, Dongyun Du, Ruan Chi
Summary: This study investigates the adsorption performance of mechanically activated and modified electrolytic manganese slags (M-EMS) for heavy metals, as well as its passivation ability, impact on dissolved organic matter (DOM), and microbial community structure in soil. The results demonstrate that M-EMS shows remarkable removal performance for different heavy metals and can stabilize them in contaminated soils through ion exchange, electrostatic adsorption, complex precipitation, and microbial-induced mechanisms. These findings provide new insights into the ecological remediation of heavy-metal-contaminated soils and water bodies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Energy & Fuels
S. G. Udeagbara, S. O. Isehunwa, N. U. Okereke, I. U. Oguamah
Summary: This study evaluated the effectiveness of four bio-adsorbents in treating produced water from Niger Delta oil fields, showing that finer adsorbents were more effective in heavy metal adsorption.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Ying Zhang, Jianhua Qu, Yihang Yuan, Haijiao Song, Yang Liu, Siqi Wang, Yue Tao, Yanhong Zhao, Zhuoran Li
Summary: Sulfide-modified magnetic hydrochar (MHC-S4) was synthesized and found to effectively adsorb Cd(II)/Pb(II) over a wide pH range and achieve fast uptake equilibrium. In single system, MHC-S4 showed excellent adsorption properties with maximum monolayer uptake of 62.49 and 149.33 mg/g for Cd(II) and Pb(II), respectively. However, the binding rate and uptake of metal ions in the binary system were inferior, and Pb(II) exhibited significant inhibition to Cd(II) adsorption onto MHC-S4. The results suggested that sulfide-modified magnetic hydrochar is a high-performance adsorbent for heavy metals removal.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Radhia Yous, Razika Khalladi, Hakima Cherifi
Summary: In this study, iron and cadmium were successfully eliminated from aqueous solutions simultaneously using Algerian Bentonite without any modification. The sorption mechanism and optimal conditions were investigated, with the pseudo second-order model fitting the experimental data well. Kinetic studies revealed that the process is controlled by film diffusion, followed by internal diffusion, with cadmium showing higher and faster sorption than iron. These results suggest that raw bentonite can be an efficient sorbent for heavy metals mixture.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Agnieszka Cuprys, Zakhar Maletskyi, Tarek Rouissi, Harsha Ratnaweera, Satinder Kaur Brar, Emile Knystautas, Patrick Drogui
Summary: The study attempted to produce chitosan-biochar beads and test their efficiency in simultaneously removing different contaminants. The modified pig manure biochar showed increased adsorption capacity, with the adsorbent able to remove all targeted contaminants in the order of Pb > Cd > As > CIP. The presence of metals and metalloids affected the mobility of CIP, potentially reducing its adsorption ability for inorganics.
Article
Chemistry, Inorganic & Nuclear
Rishi Mittal, Anuj Sharma, Abhishek Kumar Bhardwaj, Rachna Bhateria, Shafila Bansal, Rajiv Kashyap, Santosh Bhukal
Summary: In this study, Spirulina-based green synthesis of mesoporous iron oxide nanoparticles (MIONPs) was used for the adsorption of chromium (VI) in water. The synthesized MIONPs were characterized and their adsorption mechanism was explained. The effects of various parameters on chromium adsorption were investigated, and the best conditions for adsorption were determined.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
A. Saenz-Trevizo, P. Amezaga-Madrid, P. Piza-Ruiz, W. Antunez-Flores, C. Ornelas-Gutierrez, M. Miki-Yoshida
MATERIALS CHARACTERIZATION
(2015)
Article
Materials Science, Multidisciplinary
Angelica Saenz-Trevizoa, Patricia Amezaga-Madrid, Pedro Piza-Ruiz, Wilber Antunez-Flores, Mario Miki-Yoshida
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2016)
Article
Engineering, Electrical & Electronic
A. Saenz-Trevizo, P. Amezaga-Madrid, P. Piza-Ruiz, W. Antunez-Flores, C. Ornelas-Gutierrez, M. Miki-Yoshida
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2016)
Article
Materials Science, Ceramics
B. E. Monarrez-Cordero, P. Amezaga-Madrid, A. Saenz-Trevizo, P. Piza-Ruiz, W. Antunez-Flores, M. Miki-Yoshida
CERAMICS INTERNATIONAL
(2018)
Article
Chemistry, Physical
A. Saenz-Trevizo, P. Amezaga-Madrid, P. Piza-Ruiz, O. Solis-Canto, C. Ornelas-Gutierrez, S. Perez-Garcia, M. Miki-Yoshida
JOURNAL OF ALLOYS AND COMPOUNDS
(2014)
Article
Materials Science, Multidisciplinary
A. Saenz-Trevizo, P. Amezaga-Madrid, L. Fuentes-Cobas, P. Piza-Ruiz, W. Antunez-Flores, C. Ornelas-Gutierrez, S. A. Perez-Garcia, M. Miki-Yoshida
MATERIALS CHARACTERIZATION
(2014)
Article
Materials Science, Ceramics
P. Piza-Ruiz, A. Saenz-Trevizo, Y. Verde-Gomez, P. Amezaga-Madrid, M. Miki-Yoshida
CERAMICS INTERNATIONAL
(2019)
Article
Biochemical Research Methods
A. Saenz-Trevizo, P. Piza-Ruiz, D. Chavez-Flores, J. Ogaz-Parada, P. Amezaga-Madrid, A. Vega-Rios, M. Miki-Yoshida
JOURNAL OF FLUORESCENCE
(2019)
Review
Nanoscience & Nanotechnology
A. Saenz-Trevizo, A. M. Hodge
Article
Materials Science, Multidisciplinary
D. A. Vazquez-Vargas, P. Amezaga-Madrid, L. E. Jauregui-Martinez, O. Esquivel-Pereyra, W. Antunez-Flores, P. Piza-Ruiz, M. Miki-Yoshida
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)