Article
Chemistry, Multidisciplinary
Jien Ye, Yating Luo, Jiacong Sun, Jiyan Shi
Summary: The study found that bentonite-modified nZVI showed improved efficiency in removing Cr(VI) and enhanced transport performance compared to nZVI. The transport of both materials was negatively correlated with the clay composition in different soils. Besides, modification of nZVI by bentonite reduced toxicity to luminous bacteria and ryegrass, indicating potential for in situ environmental remediation.
Article
Green & Sustainable Science & Technology
Hao Tang, Shu Zhang, Hongwei Pang, Jiaqi Wang, Xiangxue Wang, Gang Song, Shujun Yu
Summary: The novel MS@S-NZVI material designed in this study showed high dispersion and efficient adsorption capacity for U(VI) removal, with fast reaction equilibrium and high maximum adsorption capacity in water. Further research demonstrated its significant U(VI) removal rate in simulated wastewater systems, and XPS analysis identified adsorption and reduction as the main mechanisms of U(VI) removal.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Payel Singh, Prabir Pal, Priyanka Mondal, Govindachetty Saravanan, Penumaka Nagababu, Swachchha Majumdar, Nitin Labhsetwar, Subhamoy Bhowmick
Summary: Sulphur modified nano zerovalent iron (S?nZVI) has shown high efficiency in removing inorganic arsenic from water, especially under acidic conditions. The addition of FeS on the surface of nZVI can significantly alter the sequestration mechanism of arsenic, leading to enhanced removal efficiency in contaminated water.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Jituo Xie, Chao Lei, Wenqian Chen, Binbin Huang
Summary: Combining conductive polymers with nanoscale zerovalent iron can effectively address the challenges of nZVI reduction by enhancing reactivity and catalytic ability. Supporting Pd/Fe nanoparticles significantly improves the removal rate of 4-chlorophenol, attributed to the highly stabilized and dispersed state, as well as the synergistic effect of electron transfer.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Jin Zhang, Hao Yu, Weijian Xu, Hongyu Shi, Xiaohong Hu, Jiang Xu, Liping Lou
Summary: Sulfidized nanoscale zerovalent iron (S-nZVI) is a promising material for degrading halogenated contaminants. However, its easy aggregation limits its application for in-situ groundwater remediation. Therefore, S-nZVI was decorated onto modified biochar (mBC) to enhance dispersity and reactivity with florfenicol (FF), resulting in significantly higher removal rates compared to S-nZVI alone.
ENVIRONMENTAL RESEARCH
(2023)
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
Biotechnology & Applied Microbiology
Shengqiong Fang, Xiaoyi Huang, Shuangling Xie, Jiale Du, Jianlong Zhu, Kai Wang, Qinglin Zhuang, Xuan Huang
Summary: A novel biochar-loaded nano-zerovalent iron composite (nZVI@CMBC) was developed and applied for the removal of hexavalent chromium in wastewater. The results showed that the nZVI@CMBC composite had a high removal efficiency of Cr(VI) under acidic conditions, with a value of 124.12 mg g(-1).
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
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
Jianping Lu, Rongyue Geng, Han Zhang, Zhen Yu, Tao Chen, Baogang Zhang
Summary: The coexistence of chromium (VI) and uranium (VI) in groundwater poses severe risks to human health. This study explores the concurrent removal of Cr(VI) and U(VI) using zerovalent iron (Fe(0)) as an electron donor. The results show that Fe(0) can effectively remove both Cr(VI) and U(VI), reducing them to less mobile and insoluble forms. Microbial communities, including Delftia, Acinetobacter, Pseudomonas, and Desulfomicrobium, play a crucial role in mediating the bioreduction process. The study also observed the enrichment of genes related to Cr(VI) resistance, U(VI) reduction, and Fe(II) oxidation, indicating the involvement of specific microbial activities.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Physical
Yinzhi Lv, Lin Chen, Anning Zhang, Guodong Sheng, Qing Liao
Summary: In this study, a novel nanocomposite of iron sulfide supported on two-dimensional titanium carbide (FeS@Ti3C2Tx) was synthesized and demonstrated to have excellent U(VI) removal ability from wastewater under anoxic conditions. The FeS@Ti3C2Tx nanocomposite exhibited a higher scavenging capacity compared to Ti3C2Tx or FeS materials, reaching a maximum of 1098.2 mg/g at T = 303 K. The U(VI) removal was influenced by factors such as contact time, initial pH, adsorbent dose, and initial U(VI) concentration, with an optimum pH of 5.0. Kinetics and isotherm analyses confirmed that the U(VI) removal on FeS@Ti3C2Tx followed a pseudo-second-order and Freundlich model, suggesting its potential as an efficient scavenger for environmental remediation.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Environmental Sciences
Xuyin Huang, Xiaojun Niu, Dongqing Zhang, Xiaoqin Li, Haoshen Li, Ziyuan Wang, Zhang Lin, Mingli Fu
Summary: This study investigates the removal of heavy metals using nanoscale zero-valent iron modified biochar (nZVI-BC) and the interaction between nZVI corrosion products and heavy metals. The results show that nZVI-BC follows the Langmuir isotherm for Cr(VI) adsorption, and the main removal mechanism is the reduction of Cr(VI) to Cr(III). The corrosion of nZVI-BC is influenced by pH, with different iron oxide products formed at different pH levels. DFT calculations reveal that Fe3O4 has higher adsorption capacity for Cr(VI) under acidic conditions, and it effectively removes Cr(VI) through electrostatic attraction and reduction. However, Fe3O4 continues to convert to more stable FeOOH, which stabilizes the reduced Cr(III).
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Chao Lei, Zidie Zhou, Wenqian Chen, Jituo Xie, Binbin Huang
Summary: In this study, a composite material of PPY supported Pd/Fe bimetallic nanoparticles was prepared and applied for the simultaneous removal of 4-CP and Cr(VI). The material exhibited excellent catalytic performance, which was attributed to the unique properties of PPY as a support, adsorbent, and electron transfer carrier.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Polymer Science
Oanamari Daniela Orbulet, Annette Madelene Dancila, Simona Caprarescu, Cristina Modrogan, Violeta Purcar
Summary: The main objectives of this study were to immobilize nano zerovalent iron (nZVI) onto a polymeric material (Purolite A400) and synthesize the polymeric material (A400-nZVI) using sodium borohydride (NaBH4) reduction. The obtained A400-nZVI was used to remove nitrate ions from simulated groundwater. The polymeric materials, with and without nZVI (A400 and A400-nZVI), were characterized using FTIR, SEM-EDAX, XRD, and TGA analysis. The results confirmed the presence of nZVI on the polymeric material (A400). The adsorption capacity of A400-nZVI as a polymeric adsorbent was evaluated through kinetic and thermodynamic studies. The experimental results showed that nitrate ions reduction followed the pseudo-second-order kinetic model and Freundlich isotherm. A potential reaction mechanism was suggested based on the kinetic model results. A higher nitrate removal (>80%) was achieved under acidic conditions. The results indicate that the obtained A400-nZVI can be considered as a potential polymeric adsorbent for various pollutants in groundwater and wastewater.
Article
Engineering, Environmental
Jianping Lu, Baogang Zhang, Rongyue Geng, Guoxi Lian, Hailiang Dong
Summary: This study demonstrates the successful application of zerovalent iron (Fe(0)) for the biological reduction of uranium (VI) [U(VI)]. The experiments conducted in a continuous-flow biological column showed that Fe(0) supported U(VI) reduction achieved a maximum removal efficiency of 100% and a capacity of 46.4 +/- 0.52 g/(m(3).d). The longevity of Fe(0) was also significantly increased. Metagenomic analysis revealed the upregulation of genes involved in U(VI) reduction and Fe(II) oxidation. This research provides a promising remediation strategy for U(VI)-polluted aquifers.
Article
Chemistry, Multidisciplinary
Qiming Li, Meili Liu, Xuchun Qiu, Xiang Liu, Malcom Frimpong Dapaah, Qijian Niu, Liang Cheng
Summary: Carbonized melamine foam-supported nZVI composites were evaluated for efficient Cr(VI) removal. Fe@MF-12.5-800 exhibited the highest removal efficiency and remarkable stability at a neutral pH.
Article
Chemistry, Physical
Da Huang, Fenggang Bian, Dangqiang Zhu, Xichang Bao, Chunxia Hong, Ping Zhou, Yuying Huang, Chunming Yang
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Chemistry, Physical
Laura Borgese, Fabjola Bilo, Stefania Federici, Eva Margui, Thomas Hase, Yuying Huang, Burkhard Beckhoff, Laura E. Depero
SURFACE AND INTERFACE ANALYSIS
(2020)
Article
Spectroscopy
Bingbao Mei, Songqi Gu, Xianlong Du, Zhongliang Li, Hanjie Cao, Fei Song, Yuying Huang, Zheng Jiang
X-RAY SPECTROMETRY
(2020)
Article
Chemistry, Inorganic & Nuclear
Zenghui Yue, Xiaofeng Guo, Mei-Ling Feng, Yue-Jian Lin, Yu Ju, Xiao Lin, Zhi-Hui Zhang, Xiaojing Guo, Jian Lin, Yu-Ying Huang, Jian-Qiang Wang
INORGANIC CHEMISTRY
(2020)
Article
Materials Science, Multidisciplinary
Hongliang Bao, Huoping Zhong, Yin Hu, Jian Lin, Haisheng Yu, Jingyuan Ma, Zhengfeng Tang, Yuan Qian, Yuying Huang, Ke-Zhao Liu, Jian-Qiang Wang
JOURNAL OF NUCLEAR MATERIALS
(2020)
Article
Chemistry, Applied
Liangyi Song, Xiaran Miao, Xiuhong Li, Fenggang Bian, Jinyou Lin, Yuying Huang
Summary: This study presents a two-step alkali/oxidation process to efficiently convert waste sugarcane bagasse into cellulose nanofibrils with controlled morphologies. By adjusting the concentrations of NaOH and NaClO, the cellulose content, crystallinity index, and fiber length can be effectively tailored, allowing for the production of CNF with different properties and applications.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Weiwei Guo, Xingxing Tan, Jiahui Bi, Liang Xu, Dexin Yang, Chunjun Chen, Qinggong Zhu, Jun Ma, Akhil Tayal, Jingyuan Ma, Yuying Huang, Xiaofu Sun, Shoujie Liu, Buxing Han
Summary: The use of atomic In catalysts for CO2 electroreduction to CO shows high efficiency and selectivity, offering a promising method to reduce greenhouse gas emissions. The catalyst demonstrates outstanding faradaic efficiency, total current density, and turnover frequency, along with remarkable stability.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Weiwei Guo, Shoujie Liu, Xingxing Tan, Ruizhi Wu, Xupeng Yan, Chunjun Chen, Qinggong Zhu, Lirong Zheng, Jingyuan Ma, Jing Zhang, Yuying Huang, Xiaofu Sun, Buxing Han
Summary: This study reports a new catalyst design with atomically dispersed Sn sites anchored on defective CuO catalysts for CO2 electroreduction to methanol, demonstrating high efficiency and stability in H-cells.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Yahui Wu, Chunjun Chen, Xupeng Yan, Xiaofu Sun, Qinggong Zhu, Pengsong Li, Yiming Li, Shoujie Liu, Jingyuan Ma, Yuying Huang, Buxing Han
Summary: Guided by first-principles calculations, it was discovered that Cd single-atom catalysts have excellent performance in activating CO2, and the introduction of axial coordination structure can further decrease the free energy barrier of CO2 reduction while suppressing the hydrogen evolution reaction. The designed and synthesized novel Cd SAC showed outstanding performance in CO2 electroreduction to CO, achieving a high faradaic efficiency and turnover frequency. This work serves as a successful example of designing highly efficient catalysts guided by theoretical calculations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Nuclear Science & Technology
Da Huang, Chun-Xia Hong, Jian-Hua Han, Nie Zhao, Xiu-Hong Li, Xi-Chang Bao, Feng-Gang Bian, Yu-Ying Huang, Chun-Ming Yang
Summary: The study found that PC71BM molecules dissolved by DIO have a nucleating effect on PTB7-Th, promoting the crystallization of PTB7-Th and reducing phase separation. Additionally, a significant evolution of lattice space and crystal coherence length was observed during thermal annealing.
NUCLEAR SCIENCE AND TECHNIQUES
(2021)
Article
Chemistry, Physical
Xiaokang Sun, Kai Liu, Nie Zhao, Fenggang Bian, Chunming Yang, Yuying Huang
Summary: In this study, the morphological evolution of block copolymer films during the thermal-induced self-assembly process was investigated. It was found that the formation of ordered structure in the films was mainly determined by phase separation of block molecules followed by growth of grains in the nanodomain. Additionally, better-order nanodomains were obtained with thermal annealing at a faster heating rate.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Materials Science, Characterization & Testing
Yang Liu, Jingyuan Ma, Weihua Liu, Fenggang Bian, Xiuhong Li, Zhongfeng Tang, Yuying Huang, Feng Tian
Summary: Synchrotron radiation X-ray was used as both the irradiation source and testing tool for PVDF membranes. The structural evolution of the PVDF membranes under irradiation was analyzed using in-situ and ex-situ characterization methods. The study demonstrated that the synchrotron radiation X-ray destroyed the long periodic structure and crystalline region of the PVDF membranes, leading to a decline in crystallinity.
Article
Instruments & Instrumentation
Yang Liu, Feng Tian, Ping Zhou, Huachun Zhu, Jiajia Zhong, Min Chen, Xiuhong Li, Yuying Huang, Jingyuan Ma, Fenggang Bian
Summary: Developing the synchrotron radiation experiment method based on combined technology provides more insights into the formation mechanism and properties of new materials. A new combined small-angle x-ray scattering/wide-angle x-ray scattering/Fourier-transform infrared spectroscopy (SAXS/WAXS/FTIR) setup was established to simultaneously obtain x-ray and FTIR signals from the same sample. This setup allows real-time observation of the microstructure evolution during the synthesis of composite materials at atomic and molecular levels.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Chemistry, Multidisciplinary
Chunjun Chen, Xupeng Yan, Ruizhi Wu, Yahui Wu, Qinggong Zhu, Minqiang Hou, Zhaofu Zhang, Honglei Fan, Jun Ma, Yuying Huang, Jingyuan Ma, Xiaofu Sun, Longfei Lin, Shoujie Liu, Buxing Han
Summary: In this study, quasi-square-shaped cadmium hydroxide nanocatalysts were designed for CO2 electroreduction to CO, showing high activity and selectivity with nearly 100% selectivity for CO production at high current density. The outstanding performance of the catalyst is attributed to its unique structure, providing low Cd-O coordination and exposing high activity (002) facet requiring lower energy for CO formation. Adsorption-electrolysis device can help achieve high CO concentration from low concentration CO2.
Article
Polymer Science
Hao Zhang, Feng Tian, Haitao Lin, Rongfang Shen, Weihua Liu, Yuying Huang, Zhongfeng Tang
POLYMER DEGRADATION AND STABILITY
(2020)
