Review
Engineering, Environmental
Yu Chen, Yanjiao Gao, Tingting Liu, Zhao Zhang, Weishi Li
Summary: This article reviews the mechanism, process, and influencing factors of iron-carbon micro electrolysis activated persulfate (Fe-C/PS) in treating refractory organics in wastewater, and summarizes the optimal reaction conditions and degradation efficiency. Moreover, the challenges and future directions of Fe-C/PS in application are analyzed.
WATER SCIENCE AND TECHNOLOGY
(2022)
Review
Engineering, Environmental
Jiacheng Luo, Yanjiao Gao, Tiehong Song, Yu Chen
Summary: The combination of PMS and biochar to produce free radicals has shown great potential in treating refractory organics, and there is still room for further development in the research of the PMS/biochar system.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Hua Yang, Peiyu Cao, Yaping Zhang, Meiling Zhou, Qianqian Wang, Rongmin Wang, Pengfei Song, Yufeng He
Summary: In this study, tungsten trioxide nanocubes were successfully grown on a cheap and eco-friendly natural loess particle via a simple one-pot hydrothermal method. The resulting loess-based photocatalyst showed high efficiency and stability in the photodegradation of methylene blue under visible-light illumination. It also demonstrated good recyclability with 85% remaining activity after 9 cycling times. The use of natural minerals as a carrier opens up the possibility for the development of a novel eco-friendly photocatalyst for the degradation of organic pollutants in wastewater treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Qiuling Ma, Rui Song, Fujun Ren, Hao Wang, Wensheng Gao, Zelong Li, Can Li
Summary: In this study, a WO3 network photoelectrode with high photocurrent density and reaction rate was reported. The photoelectrode exhibited a Schottky junction formed at the heterophase interface, which facilitated charge transfer and achieved complete degradation and mineralization of bisphenol A in wastewater treatment.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Environmental Sciences
Huihui Zhang, Hai Lin, Qiang Li, Changkun Cheng, Hui Shen, Zhiyong Zhang, Zhongzhi Zhang, Heming Wang
Summary: Coagulation/flocculation with the green chlorine-free coagulant PSAF showed high removal efficiencies for organic substances in non-oily wastewater and oily wastewater, with the addition sequence of PAMALAM significantly impacting the coagulation performance. The mechanisms of charge neutralization, sweep, and adsorption/entrapment were identified during the coagulation process, with PAMALAM mainly enhancing adsorption, bridging, and sweep functions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Dong-Bum Seo, Soomin Yoo, Viet Dongquoc, Tran Nam Trung, Eui-Tae Kim
Summary: The study introduced a simple and effective method to synthesize 2D WS2 shell layer on WO3 nanorods, resulting in significantly enhanced photoelectrochemical performance. By controlling the hydrothermal reaction temperature and phase transformation during synthesis, the performance of WO3/WS2 core-shell nanorods was successfully improved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Yanjiao Gao, Jiacheng Luo, Tiehong Song, Xiaodan Yu
Summary: The nano-Fe-0/PS process effectively treats refractory organics, with higher oxidation potential and longer half-life. Research mainly covers the characteristics of nano-Fe-0 and PS, the mechanism of PS activation, reaction conditions, and future research recommendations.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
A. Tolosana-Moranchel, S. McMichael, J. W. J. Hamilton, J. A. Byrne, P. Fernandez-Ibanez
Summary: This study assessed the performance of a photoelectrochemical cell in degrading a mixture of emerging contaminants in distilled water and simulated wastewater effluents. The combination of WO3-GDE showed the most efficient degradation of the contaminants. Significant degradation was observed under visible light, and reasonable degradation rate constants were obtained for different compounds. Photogenerated holes were identified as the main factor responsible for the degradation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Environmental Sciences
Huiling Xia, Chengwei Li, Guoying Yang, Zhiang Shi, Chenxi Jin, Wenzhi He, Jingcheng Xu, Guangming Li
Summary: This paper provides a detailed classification and comprehensive review of microwave-assisted advanced oxidation processes (MW-AOPs) in wastewater treatment. The latest applications of microwave in different advanced oxidation systems are discussed, along with the discussion of reaction parameters, performance, and operating costs of MW-AOPs. Recommendations for future research on MW-AOPs are also provided, highlighting the potential development and evolution of this technology.
Article
Engineering, Environmental
Xingyun Hu, Feng Zhu, Linghao Kong, Xianjia Peng
Summary: This study proposes a new method to remove chloride ion (Cl(-I)) from strongly acidic wastewater using thermal activated persulfate (PS), achieving over 96% removal of Cl(-I) under optimized conditions. The key step for Cl(-I) removal was identified as the formation of ?Cl or ?Cl2? from the oxidation of Cl(-I) by ?SO4? and ?OH, with estimated contribution ratios of 67.4% and 32.6%, respectively.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Agricultural Engineering
Guiyang Wu, Guangfeng Yang, Xiaoran Sun, Bu Li, Zhijuan Tian, Xinzheng Niu, Junmei Cheng, Lijuan Feng
Summary: This study developed a heterotrophic denitrification process using multistage anoxic and oxic biofilm (MAOB) to treat wastewater with high-strength nitrogen, sulfate, and low-strength organics. The recommended optimum conditions were a C/N ratio of 1.5 and a HRT of A (24 h)/O (12-24 h) to achieve > 90% of nitrogen and organics removal. The dominant denitrifying biofilm species in the tanks included Hyphomicrobium, Methylophaga, and Azoarcus, containing > 20% aerobic denitrifiers.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Physical
Jie Yu, Jesus Gonzalez-Cobos, Frederic Dappozze, Francisco J. Lopez-Tenllado, Jesus Hidalgo-Carrillo, Alberto Marinas, Philippe Vernoux, Angel Caravaca, Chantal Guillard
Summary: Photoelectrocatalytic glycerol oxidation is a promising technology for simultaneous biomass waste utilization and hydrogen production. By applying an external bias, the photo-catalytic activity and stability of monoclinic WO3 catalyst have been enhanced for the selective generation of value-added products under near-neutral conditions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Environmental Sciences
Wen-Da Oh, Julia Raudlatul Jannah Zaeni, Grzegorz Lisak, Kun-Yi Andrew Lin, Kah-Hon Leong, Zheng-Yi Choong
Summary: Engineered biochar doped with nitrogen and sulfur was prepared and used as an activator for degrading organic pollutants. NSB-UT showed higher pollutant removal rate, and the removal rate can be enhanced by increasing catalyst loading or PMS dosage. The pH value has a significant impact on pollutant removal rate, and the catalytic activity of NSB-UT can be restored by thermal treatment.
Article
Engineering, Environmental
Gemma Rosello-Marquez, Ramon Manuel Fernandez-Domene, Rita Sanchez-Tovar, Mireia Cifre-Herrando, Jose Garcia-Anton
Summary: In this study, a resistant and toxic pesticide, diazinon, was successfully degraded using the photoelectrocatalysis technique with tungsten oxide (WO3) nanostructures. Nanostructures synthesized in the CH4O3S-H2O2 electrolyte showed the best photoelectrochemical behavior. The experiment achieved 90% degradation efficiency and identified five possible degradation intermediates.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Shuo Li, Yalun Yang, Heshan Zheng, Yongjie Zheng, Tao Jing, Jun Ma, Jun Nan, Yoong Kit Leong, Jo-Shu Chang
Summary: This paper summarizes the recent findings on advanced oxidation processes (AOPs) for landfill leachate treatment, focusing on the production routes and mechanisms of hydroxyl radical (·OH) and sulfate radical (SO4·-). It also highlights the challenges of using a single advanced oxidation technology for treating special leachates and the potential of synergistic combination with biological or physical methods.
Article
Genetics & Heredity
Wei-Zhen Zhou, Wenke Li, Huayan Shen, Ruby W. Wang, Wen Chen, Yujing Zhang, Qingyi Zeng, Hao Wang, Meng Yuan, Ziyi Zeng, Jinhui Cui, Chuan-Yun Li, Fred Y. Ye, Zhou Zhou
Summary: This study developed an evidence-based knowledgebase of congenital heart disease (CHD) that provides comprehensive information on CHD-related genes and clinical manifestations. Through the integration of data from 1114 publications, it links 1124 susceptibility genes and 3591 variations to over 300 CHD types and related syndromes. The knowledgebase also includes functional annotations from 50 databases/tools to facilitate the interpretation of gene and variation effects on disease pathogenicity. A core CHD sub-network of 163 genes was extracted using a gene interaction network approach. Overall, CHDbase is a valuable resource for studying CHD susceptibilities.
GENOMICS PROTEOMICS & BIOINFORMATICS
(2023)
Article
Environmental Sciences
Qingyi Zeng, Jing Tan, Beibei Gao, Tao Cai, Qingyan Zhang, Yi-Lin Liu, Sheng Chang, Shuaifei Zhao, Suqing Wu
Summary: A cobalt-doped perovskite molybdenum trioxide catalyst was synthesized and used for degrading organic contaminants. The unique structure of the catalyst facilitated the activation of peroxymonosulfate, resulting in efficient removal of bisphenol A. Singlet oxygen was identified as the main active species for the degradation process. The carrier mechanism allowed the catalyst to maintain high performance during repeat use.
Article
Environmental Sciences
Qingyi Zeng, Liu Yang, Qingyan Zhang, Tao Cai, Yumei Wang, Yuhan Cao, Junwen Lv, Zhu Xiong, Suqing Wu, Rena Oh
Summary: The utilization of bio-wastes, such as shaddock peels, for sustainable development is significant. A highly efficient functional catalyst, Co-SPC-x(y), embedded with CoO@Co nanoparticles derived from shaddock peels biochar (SPC), was prepared and used for refractory organics degradation. The optimized Co-SPC-10 (900) showed excellent PMS activation ability and stability, with 100% CTC removal in 12 minutes.
Article
Engineering, Environmental
Hongfeng Zhao, Yan Zhang, Chaoyue Xie, Jiachen Wang, Tingsheng Zhou, Changhui Zhou, Jinhua Li, Jing Bai, Xinyuan Zhu, Baoxue Zhou
Summary: This study introduces a non-precious ultrathin NiFe-layered double hydroxide catalyst for efficient conversion of urea into N2 and H2. The catalyst exhibits ultrathin nanosheet structure that promotes dehydrogenation process and shows excellent stability. This research provides a promising approach for H2 production from urine biowastes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Jingxin Yang, Yongshi Huang, Yuhang Cheng, Xueyan Wu, Jiangyan Lu, Qingnan Wan, Jianxian Feng, Qingyi Zeng, Shuaifei Zhao, Li Yu, Zhu Xiong
Summary: The commonly-used peroxymonosulfate (PMS) activator (copper oxide nanoparticles, CuO NPs) was loaded on a polydopamine (PDA)/polyethyleneimine (PEI)-modified non-woven fabric (NWF) membrane. The hybrid membrane (CuO@PDA/PEI-NWF) showed excellent ability in oxidizing the high-toxic p-nitrophenol (4-NP) in feed. The cyclic membrane catalysis system displayed high-efficiency and long-effectiveness in treating the 4-NP polluted real water.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Chemical
Yang Xiao, Qingsong Zhang, Liu Yang, Qingyan Zhang, Xijun Fu, Lin Cheng, Qingyi Zeng
Summary: A hierarchical Z-scheme heterostructure composed of In2-xS3 and Cd1+xIn2-xS4 was designed and fabricated for efficient photocatalytic wastewater treatment and CO2 reduction. The material showed superior photocatalytic performance and high removal efficiency of dyes and heavy metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Engineering, Environmental
Jiahua Ni, Yanjun Wen, Donglai Pan, Jing Bai, Baoxue Zhou, Shuaifei Zhao, Zhuan Wang, Yanbiao Liu, Qingyi Zeng
Summary: Solar energy is crucial for life and activities on Earth. Photocatalysis based on solar energy has the potential to solve environmental pollution, energy crisis, and global warming. Photocatalytic fuel cells (PFCs) are particularly promising in light-driven wastewater remediation and energy generation. This review comprehensively assesses recent progress in material development, system configurations, and reaction processes, and highlights the significance of PFCs as alternatives to traditional technologies.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Qingyi Zeng, Yuhan Cao, Beibei Gao, Xiaoyang Huang, Qingyan Zhang, Yumei Wang, Tao Cai, Yuehua Zhang, Junwen Lv, Zhu Xiong, Wenjing Xue
Summary: In this study, a Co doped anatase titanium dioxide (Co@TiO2) was prepared by a simple wet chemical method and successfully activated peroxymonosulfate (PMS) for efficient degradation of refractory organic pollutants. The doped Co replaced partial Ti without causing significant structural change. The Co@TiO2/PMS system showed high efficiency in removing chlortetracycline (CTC) and Rhodamine B (RhB) within short reaction times.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Environmental Sciences
Yanyi Liu, Wenhuan Yuan, Wenli Lin, Shan Yu, Lei Zhou, Qingyi Zeng, Jin Wang, Luoheng Tao, Qunwei Dai, Juan Liu
Summary: In this study, a composite material (M-BC) based on banyan tree aerial roots biochar modified by d-MnO2 was designed to separate U(VI) from wastewater. The results showed that M-BC had a higher separation capacity compared to BC. The study also revealed the adsorption mechanisms of U(VI) by M-BC.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Xieping He, Yining Lu, Tao Cai, Xijun Fu, Lu Song, Minjie Wang, Qingyi Zeng, Qingming Zeng, Mi Li, Yilong Hua, Xiaoyan Wu, Longlu Wang
Summary: A Cu7S4/PDS system was developed to selectively remove tetracycline hydrochloride in a complex water environment without interference from inorganic ions and natural organic matter. Surface high-valent copper species (---Cu(III)) were found to be the main active species for tetracycline degradation. This system shows promise for the degradation and detoxification of antibiotics in water.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Yi-Lin Liu, Chao Zhang, Lulin Guo, Qingming Zeng, Rongzhong Wang, Haodong Chen, Qingyan Zhang, Qingyi Zeng
Summary: The study proposes a novel nanocomposite, nZVC/Ti3C2, for efficient removal of U (VI) from radioactive wastewater. The composite material, composed of nano zero-valent copper (nZVC) nanoparticles loaded onto Ti3C2 MXene nanoflakes, shows remarkable efficiency and selectivity due to the unique configuration. The underlying mechanism involves reductive immobilization, inner-sphere surface complexation, and hydrolytic precipitation.
Article
Nanoscience & Nanotechnology
Jiahua Ni, Qingyan Zhang, Xijun Fu, Qingsong Zhang, Suqing Wu, Zhu Xiong, Jin Wang, Qingyi Zeng
Summary: This study successfully synthesized a 3D-MNSN-CF catalyst through a simple hydrothermal strategy. The catalyst exhibited exceptional efficiency and stability in activating PMS for degrading refractory organics. It had a highly exposed (001) facet, intrinsic Mn(3+)/Mn4+ redox pair, and a high ratio of oxygen vacancies, resulting in a remarkable removal rate of approximately 100% for tetracycline hydrochloride (TC) degradation.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Environmental
Qingyi Zeng, Beibei Gao, Jing Tan, Qingsong Zhang, Yanjun Wen, Qingyan Zhang, Yuhan Cao, Zhu Xiong, Rena Oh, Shuaifei Zhao
Summary: An unassisted SWENS system based on a CuAlOx/WO3 photoanode was proposed for efficient degradation of refractory organic pollutants and simultaneous hydrogen and electricity generation. The optimized CuAlOx/WO3 photoanode showed significantly enhanced photocurrent density. The assembled SWENS demonstrated outstanding universality in degrading various refractory organic pollutants for green energy production.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Wanting Hua, Wenqian Hu, Qi Chen, Chunzhen Fan, Shunfeng Jiang, Min Zhao, Zhiquan Wang, Xiangyong Zheng, Suqing Wu, Qingyi Zeng, Chunjie Zhong
Summary: The optimum conditions for preparing Fe-C-CF were determined and it was found that the SFCW system with Fe-C-CF had higher nitrogen removal efficiency and lower CO2 emissions compared to the control system. Microbial community analysis revealed that the addition of Fe-C-CF increased the diversity and abundance of microbial communities in the SFCW systems.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Qingsong Zhang, Yang Xiao, Liu Yang, Yanjun Wen, Zhu Xiong, Lin Lei, Lin Wang, Qingyi Zeng
Summary: A branched core-shell nanosphere composed of an anatase TiO2 core and a TiO2 nanobranch shell with gradient-doped N has been synthesized. The optimized nanosphere exhibits outstanding hydrogen evolution rate and high activity in photocatalytic degradation of various refractory organic pollutants.
CHINESE CHEMICAL LETTERS
(2023)