Article
Environmental Sciences
Yuping Han, Huanhuan Xu, Guangzhou Wang, Peiyuan Deng, Lili Feng, Yaoshen Fan, Jiaxin Zhang
Summary: This study summarized the preparation, characterization, and application of biochar and nZVI-biochar composite for estrogens removal. The experiment results showed that nZVI-biochar exhibited superior removal performance for estrogens pollutants compared to biochar. The adsorption kinetics of estrogens on nZVI-biochar followed the quasi-second-order model, and the adsorption isotherm could be well represented by the Freundlich model.
Article
Environmental Sciences
Guocui Wu, Wenjia Kong, Yue Gao, Yan Kong, Zhenguo Dai, Hongbing Dan, Yanan Shang, Shouquan Wang, Fengjiao Yin, Qinyan Yue, Baoyu Gao
Summary: The study demonstrates that sulfide-modified nanoscale zero-valent iron (S-nZVI) is a more promising catalyst for activating persulfate (PS) compared to normal nZVI, especially in the treatment of saline pharmaceutical wastewater. The sulfidation behavior enhances the removal efficiency of chloramphenicol (CAP) and possible degradation pathways of CAP in the S-nZVI/PS system were inferred through liquid chromatography-mass spectrometry (LC-MS) and density functional theory (DFT) calculations.
Article
Environmental Sciences
Huina Liu, Hongyang Yu, Yifeng Wu, Dongyu Peng, Shanshan Lin
Summary: Nanoscale zero-valent iron (nZVI) particles were prepared using different polyhydroxy alcohols as the liquid phase reduction medium for nitrate removal from wastewater. The prepared nZVI particles exhibited higher nitrate removal efficiency compared to pure aqueous medium. The formation of an alcohol hydroxyl shell improved the dispersion performance and reactivity of nZVI particles in the nitrate reduction process.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Chemistry, Multidisciplinary
Yilong Hua, Wei Wang, Nan Hu, Tianhang Gu, Lan Ling, Wei-xian Zhang
Summary: The core-shell structure of nanoscale zero-valent iron (nZVI) has been shown to provide multiplex solution and surface chemistry for reliable and high-efficiency enrichment and separation of uranium from low-level sources. Treatment of uranium-tailings wastewater in continuous-flow reactors resulted in reacted nZVI with high uranium content and treated wastewater with significantly reduced uranium concentration. This research further supports the cost-effective use of nanotechnology for pollution control and resource recovery.
ENVIRONMENTAL SCIENCE-NANO
(2021)
Article
Environmental Sciences
Tingyi Liu, Peng Wang, Zhong-Liang Wang
Summary: An effective complex of nanoscale zero-valent iron (NZVI) supported on zirconium 1,4-dicarboxybenzene metals-organic frameworks (UIO-66) was synthesized for efficient removal of V5+ from wastewater. The composite demonstrated strong oxidation resistance and a uniform dispersion of NZVI on UIO-66. V5+ could be quickly and completely removed in a wider pH range by the composite, except at pH = 1. The adsorption of V5+ on the composite followed a multi-layer heterogeneous adsorption mechanism, with an adsorbed amount of 397.23 mg V/g NZVI. The presence of nitrate inhibited the removal of V5+ by the composite. The mechanisms of vanadium elimination included physical adsorption, reduction, and co-precipitation, with reduction being the dominant mechanism. The composite showed good reusability after acid leaching.
Article
Engineering, Environmental
Takuya Ogawa, Yoshinori Kawase
Summary: The study demonstrated that nZVI mainly removes SDBS through ionic adsorption of anionic SDBS onto the positively charged nZVI surface, with different mechanisms and removal efficiencies at different pH values.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Agricultural Engineering
Li Zhang, Yueping Wang, Shiwei Hao, Quanhao Dou, Shuang Lan, Yongzhen Peng
Summary: A novel process was developed to simultaneously remove nitrogen and phosphorus from wastewater using anammox-synchronous zero-valent iron (ZVI) oxidation. The formation of iron phosphate minerals promoted phosphorus removal efficiency and the activity of anammox bacteria.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Shuang Wang, Dengjie Zhong, Yunlan Xu, Nianbing Zhong
Summary: In order to tackle the heavy metal pollution problem in water, a novel material PEG-nZVI/D201 was developed for efficient removal of Cr(VI) in wastewater. The PEG-nZVI/D201 material overcame the aggregation and oxidation issues of nZVI, leading to a significantly higher removal rate of Cr(VI). The adsorption experiments revealed the maximum adsorption capacity and the suitable adsorption model, and the thermodynamic analysis indicated that the adsorption process was spontaneous and endothermic. The mechanism of Cr(VI) removal by PEG-nZVI/D201 was proposed, involving electrostatic attraction, reduction by nZVI, and co-precipitation with Fe(III).
WATER AIR AND SOIL POLLUTION
(2022)
Article
Engineering, Environmental
Jun Ren, Gui Ma, Weifan Zhao, Ling Tao, Yue Zhou, Caiyun Liao, Xia Tian, Huan Wang, Kai Meng, Yongjie He, Liang Dai
Summary: In this study, a sulfide-modified attapulgite-supported nanoscale zerovalent iron (S-nZVI@ATP) composite was synthesized and found to have reduced oxidation and improved adsorption performance for Cd2+.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Environmental
Mingyang Song, Xiaolei Hu, Tianhang Gu, Wei-xian Zhang, Zilong Deng
Summary: In this study, a nanocellulose-based composite, NC-nZVI, was developed for efficient removal of nickel. The nZVI was anchored to nanocellulose through a liquid-phase reduction method, resulting in varied morphology and dispersion status. Among the developed composites, CNC-nZVI showed the most evenly distributed nZVI particles. The binding between NC and nZVI was achieved through hydrogen bonds, electrostatic attractions, coordination-covalent bonds, and steric hindrance. The CNC-nZVI composite exhibited significantly higher removal efficiency of Ni2+ compared to bare nZVI, and remained effective under a wide pH range and in the presence of interference ions like NO3-, Cl-, and Ca2+. The observed hollow-out structure and Tafel extrapolation curves indicated that CNC activated diffusion path and accelerated electronic transfer from nZVI. The superior removal performance of NC-nZVI and the abundance of raw materials make it a promising material for environmental remediation and wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Runqin Gao, Peiwei Hu, Yanni Dai, Yan Zhang, Liu Liu, Wenzhao Yang
Summary: This study synthesized kaolinite-supported sulfide-modified nano zero-valent iron (S-nZVI@Kaol) for the removal of cadmium in water. The results showed that the composite material had good adsorption performance and stability, and its removal efficiency was affected by the solution pH value and the composition ratio of the material.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Liang Dai, Kai Meng, Weifan Zhao, Tao Han, Zhenle Lei, Gui Ma, Xia Tian, Jun Ren
Summary: In this study, attapulgite-supported nano zero-valent iron (nZVI@ATP) was synthesized and used for Pb2+ remediation in aqueous solution. The adsorption performance of nZVI@ATP for Pb2+ was improved, and the mechanism included reduction, precipitation, and complex formation.
Article
Chemistry, Multidisciplinary
Ziang Bai, Ruixing Chen, Hongwei Pang, Xiangxue Wang, Gang Song, Shujun Yu
Summary: A new material, sulfide nano zero-valent iron (S-NZVI), was prepared and applied for removal of uranium (U(VI)) from water. Through experiments and analysis, it was found that S-NZVI has high efficiency in U(VI) removal, with a mechanism attributed to adsorption and redox reaction, and advantages in rapid separation and recyclability.
ACTA CHIMICA SINICA
(2021)
Article
Environmental Sciences
Pamphile Ndagijimana, Xuejiao Liu, Qingxin Xu, Zhiwei Li, Beibei Pan, Xu Liao, Yin Wang
Summary: In this study, a composite (nZVI/Ag@AC-RGO) consisting of AC, reduced graphene oxide (RGO), nanoscale zero-valent iron (nZVI), and silver (Ag) was successfully synthesized and characterized. The composite showed improved adsorption and degradation capability for trihalomethanes (THMs)-contaminated water remediation. The results indicated that the composite had good removal efficiency and adsorption capacity for THMs, and could effectively remove THMs through multilayer reaction processes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Qi Cheng, Qingrui Li, Xiaojie Huang, Xiaoqin Li, Yunyan Wang, Weizhen Liu, Zhang Lin
Summary: In this study, cauliflower-like amorphous nanoscale zero-valent iron (A-nZVI) was prepared and found to have better performance for the removal of Sb(III) compared to nZVI. A-nZVI showed higher removal capacity and selectivity for Sb(III) and was less affected by interfering anions. The findings contribute to the remediation of Sb(III) in groundwater.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Chang-Chieh Huang, Shang-Lien Lo, Hsing-Lung Lien
CHEMICAL ENGINEERING JOURNAL
(2015)
Article
Engineering, Environmental
Pijit Jiemvarangkul, Wei-xian Zhang, Hsing-Lung Lien
CHEMICAL ENGINEERING JOURNAL
(2011)
Article
Engineering, Environmental
Chang-Chieh Huang, Shang-Lien Lo, Hsing-Lung Lien
CHEMICAL ENGINEERING JOURNAL
(2012)
Article
Engineering, Environmental
Chang-Chieh Huang, Shang-Lien Lo, Hsing-Lung Lien
CHEMICAL ENGINEERING JOURNAL
(2013)
Article
Environmental Sciences
Hsing-Lung Lien, Chia Ching Yu, Ya-Ching Lee
Article
Biochemistry & Molecular Biology
Tai-Lin Lin, Hsing-Lung Lien
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2013)
Article
Engineering, Environmental
Daniel W. Elliott, Hsing-Lung Lien, Wei-Xian Zhang
JOURNAL OF ENVIRONMENTAL ENGINEERING
(2009)
Article
Chemistry, Analytical
Chang-Chieh Huang, Shang-Lien Lo, Shin-Mu Tsai, Hsing-Lung Lien
JOURNAL OF ENVIRONMENTAL MONITORING
(2011)
Article
Engineering, Environmental
Yu-Ting Wei, Shian-chee Wu, Shi-Wei Yang, Choi-Hong Che, Hsing-Lung Lien, De-Huang Huang
JOURNAL OF HAZARDOUS MATERIALS
(2012)
Article
Chemistry, Multidisciplinary
Chih-Ming Chou, Hsing-Lung Lien
JOURNAL OF NANOPARTICLE RESEARCH
(2011)
Article
Engineering, Environmental
Yu-Ting Wei, Shian-Chee Wu, Chih-Ming Chou, Choi-Hong Che, Shin-Mu Tsai, Hsing-Lung Lien
Article
Engineering, Environmental
Chang-Chieh Huang, Hsing-Lung Lien
WATER SCIENCE AND TECHNOLOGY
(2010)
Review
Chemistry, Analytical
Weile Yan, Hsing-Lung Lien, Bruce E. Koel, Wei-xian Zhang
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2013)
Article
Environmental Sciences
Daniel W. Elliott, Hsing-Lung Lien, Wei-xian Zhang
JOURNAL OF ENVIRONMENTAL QUALITY
(2008)