Article
Chemistry, Multidisciplinary
Xiangyu Wang, Xiangmei Wang, Iseult Lynch, Jun Ma
Summary: A low-cost and stable non-precious metal catalyst was developed for efficient degradation of tetracycline (TC). An electrolysis-assisted nano zerovalent iron system (E-NZVI) achieved a TC removal efficiency of 97.3% at an applied voltage of 4 V, 6.3 times higher than the NZVI system without an applied voltage. The improvement was attributed to the stimulation of NZVI corrosion, accelerating the release of Fe2+ and facilitating the conversion of ineffective ions to effective ions.
Review
Environmental Sciences
Xiao Wang, Yue Zhang, Zhiwei Wang, Chunhua Xu, Paul G. Tratnyek
Summary: Metal(loid) oxyanions in groundwater, surface water, and wastewater can have harmful effects due to their high toxicity and lack of degradation. Zerovalent iron (ZVI) has been widely studied for the removal of these contaminants, with mechanisms including redox reactions, adsorption, precipitation, and coprecipitation. The corrosion of ZVI leads to the formation of iron oxyhydrides that sequester metal(loid) oxyanions, contributing to their removal from different types of water sources.
Article
Chemistry, Multidisciplinary
Weiyu Liang, Yihao Shen, Chen Xu, Dongqing Cai, Dongfang Wang, Kailun Luo, Xuechun Shao, Zhihua Qiao, Wei Zhang, Cheng Peng
Summary: A novel composite material was prepared for the removal of Cr and Cd from water and soil. The results showed that the composite material had high adsorption capacity and stability, and could simultaneously remove Cr and Cd. Cations promoted the adsorption, while anions and humic acid inhibited the adsorption.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Engineering, Environmental
Yanni Xi, Yangtao Wu, Yanfen Liu, Tanghuan Xie, Huinian Liu, Zhu Su, Yicai Huanga, Chang Zhang, Xingzhong Yuan, Xin Li
Summary: The study demonstrates the successful synthesis of sulfidated nanoscale zerovalent iron@extracellular polymeric substances (SnZVI@EPS), which exhibit superior performance in the removal and recovery of carcinogenic hexavalent chromium (Cr(VI)) compared to traditional SnZVI. The SnZVI@EPS has a larger specific surface area and better environmental friendliness, making it a promising material for Cr(VI) remediation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Jeong-In Hwang, Jang-Eok Kim
Summary: Through various Fenton reaction treatment systems combined with the use of ascorbic acid and hydrogen peroxide, both water and soil contaminated with endosulfan can be effectively remediated. The study showed that the mZVI/AA/H2O2 treatment method was able to remove a significant amount of ED within 24 hours, demonstrating its potential for remediation applications in both water and soil.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Yanyan Chen, Manlin Zhang, Tiantian Chen, Ganbing Zhang, Hui Xu, Hongwei Sun, Lizhi Zhang
Summary: A novel microreactor was constructed by anchoring nZVI on the rGO/PPy substrate within the microchannel, which catalyzed the Fenton-like reaction to remove >99% PNP within 50 seconds. The rGO/PPy composite substrate stabilized the nZVI, facilitated the decomposition of H2O2, and promoted the redox cycle of Fe(III)/Fe(II). The significant convection and highly-effective mass transfer within the microreactor also contributed to the ultrafast PNP removal. The rGO/PPy/nZVI microreactor shows promise for pollutant removal from water.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Huijie Zhu, Qiang Huang, Mingyan Shi, Shuai Fu, Xiuji Zhang, Zhe Yang, Jianhong Lu, Bo Liu
Summary: The study investigated the effectiveness of nanoscale zero-valent iron immobilized on activated carbon in removing antimonite from contaminated water. Results showed that a weak magnetic field can enhance the exclusion of paramagnetic Sb(III) ions by nZVI/AC. However, this also led to faster corrosion and dissolution of the iron.
Article
Chemistry, Physical
Alhadi Ishag, Yanxue Yue, Weiyu Zhu, Chongyu Li, Bo Zhang, Xinshui Huang, Yubing Sun
Summary: A novel nanoscale zero-valent iron/molybdenum disulfide (nZVI/MoS2) composite was synthesized and applied for the removal of U(VI) from water solutions. The nZVI/MoS2 composites exhibited a high surface area, uniform distribution of nZVI, and higher adsorption capacities than MoS2 due to the synergistic effect. The removal of U(VI) on nZVI/MoS2 involved cation exchange and inner-sphere surface complexation and was enhanced by the complexation of U(VI) with various oxygenated functional groups and subsequent reduction to U(IV) by Fe(0) and/or Fe(II).
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Chemical
Jiankun Zhang, Xueyang Zhang, Jiaqiang Liu, Linjun Zhang, Hong Zheng
Summary: In this study, bentonite-supported nano zerovalent iron (B-nZVI) was prepared using natural bentonite as a carrier. The composite showed the structural characteristics of two materials and effectively removed Cr(VI) from water. The removal rate of Cr(VI) increased with decreasing pH and initial concentration, and increased with increasing B-nZVI dosage and reaction time. The removal of Cr(VI) by B-nZVI followed a pseudo-second-order reaction kinetic model.
DESALINATION AND WATER TREATMENT
(2022)
Article
Environmental Sciences
Liping Liang, Fenfen Xi, Liubiao Cheng, Weishou Tan, Qiang Tang, Xu Meng, Zhenjiong Wang, Bo Sun, Aijie Wang, Jian Zhang
Summary: The study systematically investigated the coupling use of the heterogeneous Fenton-like process (zero-valent iron (Fe-0)/H2O2) and weak magnetic field (MWF) for bisphenol A (BPA) abatement. The results showed that the presence of Cl- as background ions significantly contributed to the generation of reactive chlorine species (RCS) and ClO3- in the process, while HCO3- played a role in diminishing the generation of ClO3-.
Article
Biochemistry & Molecular Biology
Hakki Gurhan, Marek Bajtos, Frank Barnes
Summary: In recent decades, evidence has shown that weak radiofrequency (RF) fields can have an impact on biological systems. This study aimed to enhance our understanding of how externally applied weak RF fields influence concentrations of chemical parameters associated with oxidative stress. Through a series of experiments, we investigated the effects of weak RF magnetic fields between 3 and 5 MHz on mitochondrial respiration in human fibrosarcoma and fibroblast cells over a four-day period. The results demonstrated that RF fields within this frequency range could modulate mitochondrial signaling by altering cell growth, mitochondrial mass, and oxidative stress. Exposure to RF fields at 4.2 MHz significantly increased mitochondrial mass and oxidative stress in fibrosarcoma cells. There are significant concerns regarding the potential health effects of prolonged exposure to weak RF fields. The ability to control these parameters through external magnetic fields may carry important clinical implications.
Article
Soil Science
Zhenhui Jiang, Yizhen Liu, Jingdong Lin, Chaoyang Mo, Jingping Yang, Anna Gunina
Summary: Introducing maize into paddy fields can increase Fe-SOC content, with Fe oxidation mechanism being the main driver in the maize season and enzyme latch mechanism controlling the increase of Fe-SOC in the rice season.
SOIL & TILLAGE RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Ivan Sciscenko, Antonio Arques, Carlos Escudero-Onate, Melina Roccamante, Ana Ruiz-Delgado, Sara Miralles-Cuevas, Sixto Malato, Isabel Oller
Summary: The study examines the use of zerovalent iron microparticles for pollutant degradation, demonstrating its effectiveness in degrading certain pollutants with high efficiency in natural water. Additionally, the study also investigates the convenience and reusability of the iron microparticles in the treatment process.
Article
Chemistry, Analytical
Heli Wang, Yin Zhong, Xifen Zhu, Dan Li, Yirong Deng, Weilin Huang, Ping'an Peng
Summary: The study developed a novel method for preparing sulfidated nZVI using S-0 dissolved in ethanol, and found that the resulting S-nZVI showed higher debromination activity for tetrabromobisphenol A compared to conventional S-nZVI. The modified nZVI with S-0 dissolved in ethanol was shown to be a simple, safe, inexpensive, and effective sulfidation technique for treating contaminated water on a large scale.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2021)
Article
Environmental Sciences
Xiaolin Zhang, Jintong Song, Wenqing Yan, Tian Li, Ruixiang Li, Jinning Wang, Xin Wang, Qixing Zhou
Summary: This study designed a weak electric field to regulate rhizospheric microflora and found that it increased the biomass of rice seedlings and displayed detoxification ability under soluble petroleum hydrocarbon conditions. The weak electric field also enhanced the transfer ability of endophytes and improved plant stress resistance.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Chun Fang Wen, Min Zhou, Peng Fei Liu, Yuanwei Liu, Xuefeng Wu, Fangxin Mao, Sheng Dai, Beibei Xu, Xue Lu Wang, Zheng Jiang, P. Hu, Shuang Yang, Hai Feng Wang, Hua Gui Yang
Summary: Stable Cu-S motifs dispersed in a Cu-based metal-organic framework precatalyst can enhance the efficiency of converting CO2 to C2+ products. The presence of partially oxidized Cu delta+ species stabilized by the Cu-S motif during CO2RR leads to high ethylene selectivity and current density.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Haifeng Wang, Xiaopeng Li, Ying Jiang, Minhan Li, Qi Xiao, Tao Zhao, Shuai Yang, Chunhong Qi, Pengpeng Qiu, Jianping Yang, Zheng Jiang, Wei Luo
Summary: Here, a universal single-atom coating strategy using tannic acid is reported, which can form uniform coatings on substrates of different materials, dimensions, and sizes. This strategy has potential applications in catalysis and photocatalysis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Shuai Yang, Xuewen Li, Tingyuan Tan, Jianing Mao, Qing Xu, Minghao Liu, Qiyang Miao, BingBao Mei, Panzhe Qiao, Songqi Gu, Fanfei Sun, Jingyuan Ma, Gaofeng Zeng, Zheng Jiang
Summary: This study presents a novel strategy to fabricate 2D carbon nanorods from COFs and investigates their catalytic performance in the oxygen reduction reaction. The resulting catalyst exhibits high catalytic activity and provides new insights into the development of single atom catalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Huan Zhang, Zhaofeng Liang, Chaoqin Huang, Lei Xie, Hongbing Wang, Jinping Hu, Zheng Jiang, Fei Song
Summary: Thermocatalytic CO2 reduction reaction is a promising strategy to reduce CO2 emissions. The catalytic role of the bismuth/copper interface in CO2 reduction was investigated, and the dissociation site evolution of the Bi-Cu bimetallic heterostructure was revealed, offering guidance for improving the efficiency of thermocatalytic CO2RR.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Qiao Yuan, Yating Gu, Siquan Feng, Xiangen Song, Jiali Mu, Bin Li, Xingju Li, Yutong Cai, Miao Jiang, Li Yan, Jingwei Li, Zheng Jiang, Yingxu Wei, Yunjie Ding
Summary: This study discovers the sulfur-promoted performance in olefin hydrocarboxylation reactions on a single-metal-site catalyst. Experimental and theoretical studies reveal the role of sulfur in the reaction mechanism and provide potential insights for further applications of HSMSCs.
Article
Chemistry, Physical
Qi Lei, Jiaqian Zhang, Zhaofeng Liang, Yang Yue, Zhiguo Ren, Yuanhe Sun, Zeying Yao, Ji Li, Yuanxin Zhao, Yaru Yin, Ping Huai, Zhengxing Lv, Jiong Li, Zheng Jiang, Wen Wen, Xiaolong Li, Xingtai Zhou, Daming Zhu
Summary: In this study, an ingenious synthesized CuS1-x@polyaniline (PANI) is proposed as a conversion-type Zn-metal-free anode for aqueous Zn-ion batteries (AZIBs). The utilization of organic-inorganic heterointerfaces and S-vacancies allows for stable anode structure and enhanced Zn2+ storage. The CuS1-x@PANI exhibits high reversible conversion reaction and demonstrates excellent cycling performance and abuse tolerance when paired with the optimized ZnxMnO2 cathode.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
S. Yang, Q. Xu, P. Qiao, J. Liu, X. Chen, Z. Tian, N. Zhang, S. -H Kim, S. Lu, X. Liu, X. Li, Z. Jiang
Summary: Covalent organic frameworks (COFs) have shown various applications in electrocatalytic systems due to their designability, controllable porosities and excellent stability. However, their poor conductivity limits their activity and selectivity. This study demonstrates the electronic synergism between catalytic COFs and carbon substrates through interface engineering, leading to significant improvements in performance.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Zhiyi Sun, Yuqi Yang, Chaohe Fang, Yinchao Yao, Fengjuan Qin, Hongfei Gu, Qingqing Liu, Wenjing Xu, Hao Tang, Zheng Jiang, Binghui Ge, Wenxing Chen, Zhuo Chen
Summary: In this work, a powerful strategy for the synthesis of graphene-supported platinum-based electrocatalysts with controllable size was reported. The synthesized nanocatalysts included single atoms, nanoclusters, and nanocrystalline structures. Among them, the single atom Pt-SA@HG exhibited unexpected excellent performance in electrocatalytic hydrogen evolution reaction (HER) surpassing the nanoclusters and nanocrystalline structures.
Article
Chemistry, Physical
Jiajia Shi, Yao Wei, Leilei Zhang, Dan Zhou, Zhounan Yu, Shengxin Zhang, Xiaofeng Yang, Ji Yang, Yang Su, Zheng Jiang, Aiqin Wang
Summary: This study reports for the first time the significant promotional effect of potassium on the Co-N-C single-atom catalyst for the direct dehydrogenation of ethylbenzene. The introduction of potassium resulted in the formation of Co-O-K moiety, which facilitated the heterolytic cleavage of the C-H bond of ethylbenzene, achieving the highest steady-state reaction rate reported thus far.
Article
Environmental Sciences
Xiao Wang, Yanshi Zhang, Yue Zhang, Chunhua Xu
Summary: This study investigated the performance of Cr(VI)-contaminated soil remediation using leaching and chemical reduction methods. The results showed that using citric acid as eluant greatly improved the removal of Cr(VI) by SZVI compared to using H2O as eluant. The prepared Cit-SZVI had more FeSx and available -COOH for chelating Cr(VI). The combination of leaching and chemical reduction proposed in this study can greatly enhance the Cr(VI) removal effect in soil, which is important for the remediation of Cr(VI)-contaminated soil.
Article
Engineering, Environmental
Yue Zhang, Zhongkai Duan, Yuhao Jin, Haixiang Han, Chunhua Xu
Summary: The effective sulfidation of ZVI relies on the chemical bridging of FeSx and ZVI, which is achieved through the in situ formation of FeSx on the ZVI surface. This leads to the bonding between the pristine ZVI and the newly formed FeSx phase, resulting in superior electron transportation activity compared to physically coated SZVI. The study elucidates the mechanism of surface generation of FeSx on ZVI and provides new perspectives for the design of high-quality SZVI for environmental applications.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Yanshi Zhang, Zhongkai Duan, Xiao Wang, Yanlu Li, Chunhua Xu
Summary: Incorporating electronegative elemental nitrogen into zero-valent iron/sulfidated zero-valent iron enhances decontamination performance, but the influence of nitrogen modification on the electrical structure of ZVI/S-ZVI is unclear. This study successfully obtained nitrogen-modified sulfidated zero-valent iron and revealed that nitrogen species bind to iron, leading to redistributed surface charges and increased electron density, which improves the conductivity of S-N-ZVI.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Lushan Ma, Ning Liu, Bingbao Mei, Kang Yang, Bingxin Liu, Kai Deng, Ying Zhang, Hao Feng, Dong Liu, Jingjing Duan, Zheng Jiang, Hui Yang, Qiang Li
Summary: This study presents an in situ-activated indium nanoelectrocatalyst derived from InOOH nanosheets, capable of efficiently conducting CO2RR at ultralow overpotentials with high selectivity towards formate production. The catalyst operates with near-unity CO2RR selectivity in a wide overpotential window of -0.25 to -0.49 V versus reversible hydrogen electrode, showcasing promising activity for CO2 electroreduction.
Article
Chemistry, Physical
Siran Zhang, Wei Zhou, Jianing Mao, Kang An, Ningyan Li, Tian Qin, Liwei Chen, Xi Liu, Bingbao Mei, Zheng Jiang, Zhong-Li Wang, Yusuke Yamauchi, Yuan Liu
Summary: This study demonstrates that the introduction of Ru ions in the LaNiO3 support can result in super anti-sintering performance of Pt nanoparticle catalyst. The experimental and theoretical evidence shows that Ru ions form stable interface bonding with Pt and enhance the Pt-O bonding on LaNiO3, preventing the sintering of Pt particles.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Chun Fang Wen, Min Zhou, Peng Fei Liu, Yuanwei Liu, Xuefeng Wu, Fangxin Mao, Sheng Dai, Beibei Xu, Xue Lu Wang, Zheng Jiang, P. Hu, Shuang Yang, Hai Feng Wang, Hua Gui Yang
Summary: In this study, a strategy based on local sulfur doping of a Cu-based metal-organic framework precatalyst was developed for enhancing ethylene selectivity in the CO2 reduction reaction. Experimental and theoretical studies showed that the Cu-S motif played a key role in the catalytic process of the precatalyst.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)