Article
Environmental Sciences
Eric F. Zama, Gang Li, Yu-Ting Tang, Brian J. Reid, Ngwa M. Ngwabie, Guo-Xin Sun
Summary: This study demonstrated that unmodified biochar can effectively enhance the removal of As(III) through calcium-arsenic precipitation, with the best results achieved at pH 6.5.
ENVIRONMENTAL POLLUTION
(2022)
Article
Geochemistry & Geophysics
Qian Zheng, Shuxin Tu, Yiwen Chen, Hongjun Zhang, William Hartley, Bangjiao Ye, Lu Ren, Juan Xiong, Wenfeng Tan, Andreas Kappler, Jingtao Hou
Summary: This study investigates the adsorption behavior of As(III) and As(V) on ferrihydrite. The results show that ferrihydrite has a higher affinity for As(III) and contains abundant micropores that contribute to the immobilization of As(III).
GEOCHIMICA ET COSMOCHIMICA ACTA
(2023)
Article
Engineering, Environmental
Longwei Yin, Longjie Liu, Shen Lin, Gary Owens, Zuliang Chen
Summary: This paper investigates the simultaneous removal of arsenite and arsenate from groundwater using zero-valent iron nanoparticles (nZVI). The results show that nZVI can efficiently remove both species, and practical application also yields good results. The presence of other coexisting ions, such as phosphate and carbonate, affects the removal efficiency.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Xuebin Zhang, Yule Wang, Songhai Wu, Xingjian Dai, Yuxin Zhang, Li Feng, Xu Han
Summary: The study demonstrates that Schwertmannite (Sch) and diatomite-modified Sch (DMS) can effectively remove As(III), As(V) and P(V), with DMS-4 showing higher adsorption capacities and stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Dejin Zhang, Yidan Wei, Shuyue Wu, Yan Dong, Bo Zhou, Jianru Liang, Lixiang Zhou
Summary: This study investigated the removal of As(III) using a mixture of zero valent iron (ZVI) and schwertmannite (Sch). The results showed that the ZVI/Sch mixture exhibited excellent performance in removing As(III) under specific premixing conditions. The synergistic interactions between ZVI and Sch during the premixing process played a crucial role in the morphological variations and mass and electron transfer between the two materials. The premixing process significantly improved the As(III) removal capacity without altering the removal pathway.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
H. L. Mendes, C. L. Caldeira, V. S. T. Ciminelli
Summary: By treating arsenic-bearing, hematite-rich calcines with sulfuric acid, an efficient method for arsenic removal in effluent treatment has been developed. The process results in residues containing ferric arsenate/arsenite and hydrated calcium arsenate, potentially reducing treatment costs and environmental impact.
MINERALS ENGINEERING
(2021)
Review
Engineering, Environmental
Edgardo E. Canas Kurz, Ulrich Hellriegel, Alberto Figoli, Bartolo Gabriele, Jochen Bundschuh, Jan Hoinkis
Summary: Membrane-based technologies show advantages in small-scale applications for arsenic-contaminated water treatment, but face challenges in meeting stringent drinking water guidelines and waste disposal. The feasibility of using renewable energies such as solar power in small-scale membrane applications is being evaluated.
Article
Environmental Sciences
Javier Quino-Favero, Raul Eyzaguirre Perez, Patricia Prieto Veramendi, Paloma Mogrovejo Garcia, Lisveth Flores del Pino
Summary: This study successfully reduced total arsenic concentrations in Synthetic Bangladesh Groundwater below the threshold established by the World Health Organization and Peruvian regulations through the combined use of Fe(VI) and Fe(III). Under the optimal combination, there were no significant differences in removal efficiency for different proportions of As(III):As(V) and different total concentrations.
Article
Environmental Sciences
Ying Liu, Leyi Li, Xuemei Huang, Yaochi Liu
Summary: A ternary oxide nanoparticle (FCCTO) mainly composed of iron, cerium, and copper was created and found to effectively remove arsenite from water. Factors such as adsorbent dose, pH, temperature, and coexisting anions influenced its efficiency. The adsorption process on FCCTO was endothermic and spontaneous, and Ce and Cu in FCCTO efficiently oxidized As(III) to As(V).
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Huimei Shan, Chunya Zeng, Chaoran Zhao, Hongbin Zhan
Summary: This study evaluates the effects of Iron oxides (FeOx) species and their decoration on GO/CS composites for Cr(VI) removal, finding that Fe(III) is a better decoration material. The Fe2O3-GO/CS composite shows high removal efficiency (94.3%) and adsorption capacity (83.8 mg/g) under optimal conditions. Cr(VI) adsorption is spontaneous, endothermic, and best fitted with the Sips model.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Environmental Sciences
Wenlin Zhao, Bozhi Ren, Andrew Hursthouse, Zhenghua Wang
Summary: The study successfully synthesized magnetic nanoadsorption materials with high adsorption capacity and easy separation, characterized by flower-like gamma-Fe2O3 microspheres composed of petal-shaped nanosheets. The material has strong magnetic response for rapid solid-liquid separation under external magnetic field, showing promising potential for treating polluted wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Chenran Hao, Tiange Gao, Anbao Yuan, Jiaqiang Xu
Summary: The combination of Fe3O4 and reduced graphene oxide (Fe3O4/rGO) in a composite material greatly enhances its lithium storage performance. The composite exhibits high reversible charge capacity at low current densities, as well as superior rate capability and cycling stability.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Applied
Semih Kara, Dotse Selali Chormey, Ahmet Saygilar, Sezgin Bakirdere
Summary: This study utilized a combination of high-performance liquid chromatography and inductively coupled plasma mass spectrometry (HPLC-ICP-MS) to separate and quantify six arsenic species. The method demonstrated high sensitivity and accuracy, with limits of detection ranging between 0.14-0.29 ng/mL. Spike recovery experiments on rice samples validated the method's applicability to complex matrices, with recovery results ranging between 93 and 109%. Triplicate measurements on all spiked samples recorded percent relative standard deviation values below 10%, indicating the reliability and precision of the method.
Review
Engineering, Environmental
Luping Tian, Hao Li, Zhaofeng Chang, Ni Liang, Min Wu, Bo Pan
Summary: Arsenic (As) contamination poses a significant threat to drinking water quality worldwide, highlighting the urgent need for effective remediation methods. Adsorption, especially using biochar, has proven to be a promising and environmentally friendly approach for As removal. Nonetheless, the limited adsorption capacity of pristine biochar due to electrostatic repulsion necessitates modification, particularly with metals, to enhance its performance. This comprehensive review investigates the influence of biochar properties and modification on As removal. Results show that biochar derived from sewage sludge exhibits relatively high adsorption capacity for As, and biochars prepared at 401-500°C are more efficient. Fe-modified biochar emerges as the preferred option due to its cost-effectiveness and high efficiency. The review concludes with limitations and future perspectives, aiming to guide the development of low-cost, eco-friendly, and efficient biochar for As-contaminated water remediation.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Engineering, Environmental
Lingchao Kong, Yi Wang, Charles B. Andrews, Chunmiao Zheng
Summary: A novel porous fibrous membrane (PG/MOF) incorporating Zr-based metal organic framework (MOF-808) and graphene oxide (GO) was developed for the removal of arsenate. The membrane exhibited excellent adsorption performance, and mechanistic analysis revealed the underlying mechanisms of adsorption.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Jingjing Lei, Yuecheng Xiong, Fei Yu, Jie Ma
Summary: This study successfully increased the storage capacity and removal efficiency of chloride ions by preparing a special structure material, providing new insights for Cl- storage electrode in capacitive deionization technology.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Fei Yu, Xiaochen Zhang, Zhengqu Yang, Peiyu Yang, Jie Ma
Summary: MXenes, a type of 2D transition metal carbides, demonstrate unique properties that make them suitable for water purification applications, such as adsorption, capacitive deionization, membranes, and catalysis. Understanding the applications and factors influencing the efficiency of MXenes is crucial for improving water treatment processes.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Environmental Sciences
Qiyu Qin, Yidi Yang, Changfu Yang, Leilihe Zhang, Haoyuan Yin, Fei Yu, Jie Ma
Summary: This study investigated the characteristics of biodegradable plastic PLA and its adsorption behavior with tetracycline under weathering conditions. The results showed that weathered PLA had cracks and holes on the surface, increased oxygen-containing functional groups, and enhanced adsorption capacity. However, the surface of microplastics weathered by seawater did not change significantly.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Chemical
Xiaochen Zhang, Yuanding Li, Zhengqu Yang, Peiyu Yang, Jun Wang, Mengting Shi, Fei Yu, Jie Ma
Summary: The industrial-prepared carbon aerogel (CA) has been demonstrated as an effective electrode material for membrane capacitive deionization (MCDI) technology, showing excellent defluorination and desalination capacities. This study is of great significance for the expansion of MCDI in practical applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Fei Yu, Xiaochen Zhang, Peng Liu, Bingbing Chen, Jie Ma
Summary: MIL-101(Cr) with ultra-high specific surface area, high water stability, and open metal sites (OMSs) is prepared for defluorination of CDI. Blockchain-like Cr-MOF electrodes with enhanced conductivity and ion storage capacity are constructed using carbon black as a connecting chain. This study reveals the defluorination mechanism of Cr-MOF electrodes and provides new ideas for the application of MOF in CDI.
Article
Chemistry, Multidisciplinary
Ningning Liu, Lanlan Yu, Baojun Liu, Fei Yu, Liqing Li, Yi Xiao, Jinhu Yang, Jie Ma
Summary: This study reports a simple alkalized treatment method for the in situ synthesis of 1D TiO2 nanowires on the surface of 2D Ti3C2 nanosheets, forming a Ti3C2-MXene partially derived hierarchical 1D/2D TiO2/Ti3C2 heterostructure as the cathode electrode. The heterostructure exhibits favorable hybrid CDI performance, including high desalination capacity, fast salt adsorption rate, and satisfactory cycling stability.
Article
Chemistry, Multidisciplinary
Jianhua Yuan, Jianglin Cao, Fei Yu, Jie Ma
Summary: In this study, a strain of Bacillus cereus CH6 was isolated from lake sediments and its ability to degrade polystyrene microplastics was investigated. Bacillus cereus CH6 showed a short generation time and high activity, leading to a relatively high degradation rate. The changes in surface morphology and internal structure of the microplastics, as well as the variations in bacterial protein concentration and esterase activity, were observed, providing new insights into the degradation of polystyrene microplastics.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2022)
Article
Chemistry, Physical
Xiaojie Shen, Yuecheng Xiong, Fei Yu, Jie Ma
Summary: This research proposes a partial in situ derivation tactic using Ti-based MXenes as metal precursors to address the low electrical conductivity and poor stability issues in CDI. The NTP-MXene/rGO hybrid electrode material exhibits outstanding salt adsorption capacity, low energy consumption, and stable cycling performance, making it suitable for practical applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Jingjing Lei, Fei Yu, Haijiao Xie, Jie Ma
Summary: Capacitive deionization (CDI) technology is expected to address scaling, corrosion, and biofouling simultaneously in circulating cooling water systems. In this study, a flexible self-supporting Ti3C2Tx MXene/carbon nanofiber film with high-performance antifouling and antibacterial activity was fabricated. The film had a 3D interconnected conductive network, which expedited electron and ion transport and diffusion. The Ti3C2Tx/CNF-14 film exhibited high desalination capacity, rapid desalination rate, and impressive inactivation efficiency against Escherichia coli. These findings highlight the potential use of high-performance multifunctional CDI electrode materials for treating circulating cooling water.
Review
Chemistry, Physical
Yuecheng Xiong, Fei Yu, Jie Ma
Summary: This paper reviews the development and importance of the capacitive deionization (CDI) desalination technology, discusses the influence of different electrode materials on CDI performance, and proposes possible research directions for the future.
ACTA PHYSICO-CHIMICA SINICA
(2022)
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
