Article
Environmental Sciences
Sicheng Xiong, Xuesong Cao, Hao Fang, Huiyuan Guo, Baoshan Xing
Summary: This study demonstrated that EPS from Chlorella pyrenoidosa can readily reduce Ag+ to AgNPs, with visible light accelerating the photoreduction process. The presence of chloride ions (Cl-) shortened the duration of photoreduction.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Zi-Yang Wang, Cheng-Jia Ju, Rui Zhang, Jing-Qiu Hua, Rong-Ping Chen, Guang-Xiang Liu, Ke Yin, Lei Yu
Summary: The study demonstrated that Fe3O4@EPS can accelerate the bio-reduction of the model pollutant MO, with the redox ability of EPS well preserved.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Lu Zhou, Jixian Yang, Fang Ma, Shanshan Pi, Aiqi Tang, Ang Li
Summary: The recovery of Pd from Pd(II) wastewater using microbial extracellular polymeric substances (EPS) and magnetic nanocomposite EPS@Fe3O4 was successful, showing excellent catalytic activity in methylene blue reduction. EPS@Fe3O4 proved to be an efficient adsorbent for Pd recovery, with high potential for practical applications.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Chemistry, Multidisciplinary
Wei Long, Zhilong Chen, Jie Shi, Shilin Yang
Summary: A magnetic composite adsorbent containing Fe3O4 and Saccharomyces cerevisiae (SC) was successfully prepared and used for the removal of Cr(VI) ions in petrochemical wastewater. The adsorbent exhibited high removal capacity and reutilization, with a kinetics model of coexistence of physical and chemical adsorption. This new adsorbent shows potential for industrial-level applications in petrochemical wastewater treatment containing Cr(VI) ions.
Article
Chemistry, Applied
Anxiang Li, Aiping Zhu
Summary: Spherical Fe3O4/polyaniline nanocomposites with core-shell structure were prepared by oxidative polymerization, showing coordination interaction between Fe3O4 and PANI interface, and maintained redox activity in neutral medium. The composition ratio of aniline/Fe3O4 greatly influences the metal anticorrosive activity of Fe3O4/PANI nanocomposites, with higher ratio resulting in better protection.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Chemistry, Physical
Ramya Ravichandran, Kumaresan Annamalai, Arun Annamalai, Sundaravadivel Elumalai
Summary: A novel approach for the green synthesis of starch-decorated Fe3O4 @Ag nanocomposite was developed using one-step grinding method. The nanocomposite exhibited a core shell structure with magnetite (Fe3O4) as the core and starch as the matrix for Ag nanoparticles. Characterization studies showed that the average particle size of the nanocomposite was 9-11 nm, and it had a retentivity magnetisation of 25.50 emu/g, making it reusable. The nanocomposite demonstrated excellent catalytic performance in the reductive degradation of water pollutants and the oxidation reactions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Tetiana Dyrda-Terniuk, Oleksandra Pryshchepa, Katarzyna Rafinska, Mateusz Kolankowski, Adrian Golebiowski, Michal Gloc, Renata Dobrucka, Krzysztof Kurzydlowski, Pawel Pomastowski
Summary: The physicochemical and biological properties of silver-casein complexes were investigated using various techniques. The study focused on the modification of casein using a novel method, which resulted in high colloidal stability and minimized metal secondary reduction risk. The sorption mechanism and the influence of protein ions on the silver binding process were studied. The results showed that the silver sorption had a complex character, and phosphoserine residues played a significant role in the interaction. The silver-casein complex exhibited effective inhibition of bacterial growth but showed toxicity towards fibroblast cells, possibly due to the release of Ag+ ions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Metallurgy & Metallurgical Engineering
Wei-min Zeng, Zhi-ru Liu, Wan-qing Liao, Jin-ju Cheng, Xue-ling Wu, Guan-zhou Qiu, Li Shen
Summary: This study conducted bioleaching experiments and biofilm colonization experiments on pyrite grains and pyrite slices using three moderately thermophilic mixed bacteria. The distribution and content changes of extracellular polymeric substance (EPS) and iron ions at the microbial-mineral interface during bioleaching were evaluated. The results showed that EPS formed sheet biofilms on the surface of pyrite slices, with the main component being extracellular protein. Fe3+ was enriched at the microbe-mineral interface with the increase of leaching time.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Chemistry, Inorganic & Nuclear
Kholod H. Kamal, M. S. Attia, Nabila S. Ammar, Enas M. Abou-Taleb
Summary: The study demonstrates that the silica/corncob nanocomposite is effective in removing lead ions, achieving a removal efficiency of up to 95%. The material also shows potential for regeneration and reuse, making it a promising and economical option for heavy metal removal from wastewater.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Polymer Science
Ahmed A. Al-Ghamdi, Ahmed A. Galhoum, Ahmed Alshahrie, Yusuf A. Al-Turki, Amal M. Al-Amri, S. Wageh
Summary: Nuclear power facilities are expanding globally to meet the increasing demand for energy. As a result, uranium recovery from secondary resources is gaining attention for its environmental protection and nuclear fuel conservation benefits. In this study, a mesoporous biosorbent of a hybrid magnetic-chitosan nanocomposite functionalized with cysteine was successfully synthesized for enhanced sorption of uranyl ions. The synthesized nanocomposite exhibited superparamagnetic properties, a unipore mesoporous structure, and selective sorption of UO22+ ions.
Article
Environmental Sciences
Wen-Jie Ma, Jiang-Tao Zhang, Ye Wang, Gui-Feng Li, Xin-Xin Wu, Yu-Xi Yao, Ya-Fei Cheng, Bao-Cheng Huang, Ren-Cun Jin
Summary: Arsenic has a negative impact on anammox treatment technology, while extracellular polymeric substances (EPS) play an important role in resisting this toxicity. In this study, it was found that proteins are the main component in EPS that forms complexes with arsenic, and complexation and hydrophobic interactions are the main forces preventing arsenic invasion.
Article
Engineering, Environmental
Xianxin Luo, Xiaoyu Zhou, Chengyi Peng, Penghui Shao, Feng Wei, Shujing Li, Ting Liu, Liming Yang, Lin Ding, Xubiao Luo
Summary: This study found that extracellular polymeric substances (EPS) play an important role in reducing hexavalent chromium, shedding light on the mechanisms of EPS. The researchers discovered that adding EPS and tryptophan significantly improved the reduction efficiency of hexavalent chromium. These findings provide new insights and strategies for removing heavy metal contamination in future applications.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Junhui Guo, Guiqin Yang, Zheng Zhuang, Qijun Mai, Li Zhuang
Summary: This study reveals the significant impact of redox potential on EPS of electroactive mixed community biofilms, influencing biocurrent generation, EPS production, and redox properties. Different anode potentials regulate the electroactivity of biofilms through modulating EPS composition and redox properties, providing insights for bioelectrochemical applications.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Analytical
Iga Zuba, Alicja Drwal, Krzysztof Drwal, Andrzej Pawlukojc
Summary: The study found that Fe3O4@MnO2 composites can efficiently remove ruthenium ions from acidic aqueous solutions at room temperature, showing good selectivity and easy separation and recovery with an external magnetic field. Results suggest that Fe3O4@MnO2 can be a new, promising sorbent for efficient removal of ruthenium from aqueous solutions.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2021)
Article
Polymer Science
Washington Luiz Oliani, Fabio Hermes Pusceddu, Duclerc Fernandes Parra
Summary: This study evaluated the ecotoxicology of silver nanocomposites in films and investigated their antimicrobial properties. The results showed that the addition of silver nanoparticles and titanium nanoparticles did not contaminate the environment and did not interfere with embryonic development.
Article
Chemistry, Physical
Zhijie Chen, Wei Wei, Hong Chen, Bing-Jie Ni
Summary: Realizing sustainable hydrogen fuel production through water electrolysis is crucial to achieving carbon neutrality. However, developing cost-effective electrocatalysts remains a challenge. Recently, eco-designed electrocatalysts derived from wastes and naturally abundant materials have gained attention. This article summarizes the recent advances in eco-designed electrocatalysts for water splitting and discusses the eco-design strategies and their correlation with catalyst properties and performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
Yanyan Gong, Jie Yin, Tong Zhang, Weizhao Yin, Luyao Sun, Qiru Liang, Qilin Wang
Summary: Mercury speciation in groundwater plays a critical role in its removal and methylation potential. This study investigated the removal performance of different mercury species and its impact on microbial methylation. The results showed that CMC-stabilized FeS nanoparticles demonstrated the best physical stability and highest mercury uptake. The treatment effectively immobilized the mercury species and reduced the production of methylmercury. This study provides compelling evidence for the efficient removal of mercury species in groundwater and inhibition of microbial methylation by FeS nanoparticles.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Lai Peng, Huiling Qiu, Shengjun Li, Yifeng Xu, Chuanzhou Liang, Ning Wang, Yiwen Liu, Bing-Jie Ni
Summary: The potential of using endogenous free ammonia (FA) and free nitrous acid (FNA) as nitrous oxide (N2O) mitigators in wastewater treatment was investigated. It was found that 1.5 mg HNO2-N/L FNA could virtually abolish N2O emission from the partial-nitritation (PN) sludge, while 45 mg NH3-N/L FA and 0.015 mg HNO2-N/L FNA successfully mitigated N2O production from the full-nitrification (FN) sludge. FA treatment was more economically appealing.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Hourui Zhang, Lu Zhang, Shuangshi Dong, Xiaoguang Duan, Dongyang Zhu, Bing-Jie Ni, Cong Lyu
Summary: Environmental contaminations have raised concerns about human health globally. It is urgent to develop metal-free photocatalysts, such as covalent organic frameworks (COFs), to address these issues. This work introduces electron-donating/withdrawing substituents on COFs-H to fine-tune the bandgap and photocatalytic performance. The study reveals that these substituents narrow the bandgap of COFs and enhance electron-hole separation efficiency, leading to improved photocatalytic remediation of organic contaminants and heavy metal ions.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Zhihao Liu, Gang Sun, Zhijie Chen, Yue Ma, Kui Qiu, Min Li, Bing-Jie Ni
Summary: This study synthesized functional polyacrylonitrile fibers with Cu-N coordination structure (PANFEDA-Cu) and demonstrated their remarkable adsorption capacity for H2S at ambient temperature, even in the presence of water vapor. The selective removal of H2S is attributed to the active Cu-N sites on the fiber surface and the strong interaction between Cu atoms and S. This work provides insights for the design of efficient and low-cost materials for gas separation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Editorial Material
Engineering, Environmental
Li Gao, Xuan Li, Ming Li, Arash Zamyadi, Qilin Wang
Summary: In this special issue on 'Aqueous Emerging Pollutants and Treatment', 32 articles are collected to demonstrate recent progress in research on water pollutants and treatment approaches. An overview of these articles is provided, along with six main trends for future research in aqueous pollutants and their treatment technologies.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Chemistry, Multidisciplinary
Jiayi Chen, Derek Hao, Wei Chen, Yazi Liu, Zongyou Yin, Hsien-Yi Hsu, Bing-Jie Ni, Aixiang Wang, Simon W. Lewis, Guohua Jia
Summary: This article presents emerging engineering strategies for designing colloidal metal-semiconductor nanorod hybrid nanostructures for efficient photocatalytic applications, focusing on the type, size, dimension, and location of metal nanoparticles and semiconductors, co-catalyst, band gap structure, surface ligand, and hole scavenger.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Review
Environmental Sciences
Maoshui Zhuo, Zhijie Chen, Xiaoqing Liu, Wei Wei, Yansong Shen, Bing-Jie Ni
Summary: This paper discusses the application of three catalytic processes (photocatalysis, electrocatalysis, and biocatalysis) in the management of microplastic pollution, and introduces the efficiency and catalytic mechanisms of different catalysts. It also proposes the development prospects for sustainable management of microplastic pollution.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yi-Lu Sun, Han-Lin Wang, Huu Hao Ngo, Wenshan Guo, Bing-Jie Ni, Xue-Ning Zhang, Wei Wei
Summary: In this study, a comprehensive methodology was developed to design and operate S0AD bioreactors, effectively managing fluctuations in nitrogen removal efficiency caused by seasonal temperature variations. By establishing a mathematical model and considering influence factors, a pilot-scale bioreactor was designed to maintain a stable effluent nitrate concentration throughout the year, resulting in a substantial reduction in excessive nitrate removal, sulfur consumption, and sulfate production.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Mohammad Reza Khavari Kashani, Qilin Wang, Masoumeh Khatebasreh, Xuan Li, Amir Mohammad Sheikh Asadi, Grzegorz Boczkaj, Farshid Ghanbari
Summary: This study investigated the sequential treatment of highly resistant landfill leachate using electrocoagulation (EC)/aeration, sulfate radical advanced oxidation process (SR-AOP), and electro-Fenton (EF). The results showed that the sequential application of these processes effectively removed COD, TOC, and ammonia from the leachate, meeting environmental regulations. The current configuration of EC/aeration-PMS/ZVI/UV-EF achieved the best performance and reduced the phytotoxicity of the leachate.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Physical
Qi-Su Huang, Chengcheng Chu, Qiuju Li, Qiong Liu, Xinru Liu, Jing Sun, Bing-Jie Ni, Shun Mao
Summary: The limited mass transfer of CO2 in water hinders the efficiency of CO2 reduction reaction (CO2RR) due to intense competition with the hydrogen evolution reaction (HER). To overcome this challenge, researchers decorated the photocatalyst surface with a hydrophobic carbonaceous cocatalyst to construct a three-phase interface. The decorated photocatalyst exhibited significantly improved CO2-to-CH4 activity and elevated CO2RR selectivity. Molecular dynamics simulations revealed that the hydrophobic microenvironment prevented hydrogen bond formation on the carbonaceous cocatalyst surface. Overall, this study provides a general method to alleviate the CO2 mass transfer limit for accelerated CO2RR in water.
Article
Nanoscience & Nanotechnology
Zhijie Chen, Renji Zheng, Teng Bao, Tianyi Ma, Wei Wei, Yansong Shen, Bing-Jie Ni
Summary: Electro-upcycling of plastic waste into value-added chemicals/fuels is a sustainable approach. A high-performance nickel sulfide catalyst is designed using a cobalt and chloride co-doping strategy, demonstrating efficient and selective conversion of plastic waste into formate and hydrogen. This study provides a cost-effective and environmentally friendly method for plastic waste management and energy-saving hydrogen production.
NANO-MICRO LETTERS
(2023)
Review
Environmental Sciences
Shiyu Yin, Le Gao, Xiumin Fan, Shuhong Gao, Xu Zhou, Wenbiao Jin, Zhongqi He, Qilin Wang
Summary: This review discusses the impact of sludge treatment on antibiotic resistant genes (ARGs), highlighting the risks of ARGs in sludge. It also explores the effects of co-existing constituents on sludge and ARGs during treatment, as well as the abundances of ARGs after different sludge treatment methods. The review emphasizes the need for technical and management measures to mitigate the risks associated with the transmission of ARGs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Engineering, Multidisciplinary
Shuting Zeng, Jing Sun, Xuyang Lue, Zitong Peng, Bin Dong, Xiaohu Dai, Bing-Jie Ni
Summary: This study investigated the impact of norfloxacin on sewage sludge anaerobic digestion and evaluated potential environmental risks. The results showed that norfloxacin at environmental relevant concentration ranges would not significantly affect methane production during the sludge anaerobic digestion. However, the individual methanogenesis process was enhanced with the increase of Methanosaeta abundances, and the norfloxacin concentration is found to be increased during the anaerobic digestion process.
RESULTS IN ENGINEERING
(2023)
Article
Environmental Sciences
Yufen Wang, Zixin Zhang, Xiaomin Wang, Haixiao Guo, Tingting Zhu, Bing-Jie Ni, Yiwen Liu
Summary: This study proposes a novel and green strategy, percarbonate-strengthened ferrate pretreatment, to enhance the synthesis of short-chain fatty acids (SCFAs) from sewage sludge. The combination of percarbonate and ferrate showed obvious synergistic effects on SCFAs accumulation and sludge reduction. Mechanism explorations demonstrated that the combination enhanced sludge solubilization, substrate biodegradability, and altered the physiochemical properties of sludge to favor organics fermentation. Further investigations revealed that the combination improved key enzyme activities associated with hydrolysis and SCFAs formation, while inhibiting SCFAs consumption. The combination also altered microbial structures and compositions, leading to the enrichment of key microbes that facilitate SCFAs accumulation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
