Environmental Functional Materials最新文献

{"title":"Synergistic activation of peroxymonosulfate by defective CuBi2O4 with oxygen vacancies and Cu+ towards efficient photocatalytic antibiotics degradation","authors":"Yuan Chang,&nbsp;Lijun Liao,&nbsp;Xuepeng Wang,&nbsp;Bo Wang,&nbsp;Zhenzi Li,&nbsp;Wenyu Zhang,&nbsp;Wei Zhou","doi":"10.1016/j.efmat.2025.10.001","DOIUrl":"10.1016/j.efmat.2025.10.001","url":null,"abstract":"<div><div>Transition metal ions containing materials is promising for peroxymonosulfate (PMS) activation in tetracycline removal. However, the combination of transition metal ions and photocatalytic process has been rarely investigated for tetracycline degradation. Herein, the synergy of oxygen vacancies and Cu⁺ ​for effective photocatalytic PMS activation over defective CuBi₂O₄ nanorods has been studied toward efficient tetracycline elimination. The increment of oxygen vacancies of CuBi₂O₄ effectively enhances the charge migration efficiency and the ability for photocatalytic PMS activation. Various oxidizing radicals including SO₄·^-, ·O₂⁻, ¹O₂, and ·OH have been identified for tetracycline degradation. SO₄·^- radicals have been proved to play a critical role in tetracycline oxidation under light irradiation. The highest tetracycline degradation efficiency (98 ​% within 20 ​min) with corresponding reaction rate constant of 0.27 min⁻¹ is achieved over the optimized 0.013-CuBi₂O₄ photocatalyst under light irradaition, which is 90 times that of pristine CuBi₂O₄ without PMS and 1.5 times that of CuBi₂O₄ with PMS. The Cu²⁺/Cu⁺ dynamic conversion cycle is enhanced by the presence of oxygen vacancies, thereby promoting PMS activation. This work provides valuable insights into the defect engineering of photocatalysts in PMS activation for efficient removal of antibiotics.</div></div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"4 1","pages":"Pages 11-20"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145765863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategies and technologies for sustainable plastic waste treatment and recycling","authors":"Kai Qian ,&nbsp;Lu Wang ,&nbsp;Jie Teng ,&nbsp;Guoshuai Liu","doi":"10.1016/j.efmat.2025.01.004","DOIUrl":"10.1016/j.efmat.2025.01.004","url":null,"abstract":"<div><div>Discarded plastics in natural environments contribute significantly to “white pollution” due to their high persistence and potential for bioaccumulation. Improperly managed waste plastics further exacerbate this issue by fragmenting and decomposing into microplastic contaminants, posing emerging threats. Effective strategies for managing and recycling discarded plastics are therefore imperative to mitigate environmental pollution and associated ecological and health risks. This review comprehensively summarizes current technologies for removing waste plastics from the environment, discussing their mechanisms, feasibility, and limitations. Methods such as pyrolysis, photolysis, electrochemical catalysis, and enzymatic processes are evaluated. Furthermore, existing technologies for transforming waste plastics into carbon materials, valuable chemicals, and fuels are outlined. Finally, the review offers insights and prospects for advancing technical developments in waste plastic management within environmental contexts.</div></div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"4 1","pages":"Pages 33-54"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145765864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of ag/Ag2O/BiPO4/Bi2WO6/g-C3N4 Z-scheme photocatalyst for high-efficiency tetracycline removal: Characterization, degradation pathway and toxicity assessments","authors":"Hongjian Zhang ,&nbsp;Qiansu Ma ,&nbsp;Guangqi An ,&nbsp;Yunxin Zhu ,&nbsp;Xiang Sun ,&nbsp;Naoki Kawazoe ,&nbsp;Guoping Chen ,&nbsp;Yingnan Yang","doi":"10.1016/j.efmat.2024.12.004","DOIUrl":"10.1016/j.efmat.2024.12.004","url":null,"abstract":"<div><div>Nowadays, tetracycline (TC) contamination of surface water has become a comprehensive environmental problem that threatens the health and survival of animals and humans. It is essential to develop an efficient, and sustainable wastewater treatment strategy. This study introduces a novel Ag/Ag₂O/BiPO₄/Bi₂WO₆/g-C₃N₄ (ABC) Z-scheme photocatalyst for high-efficiency TC removal under visible light. Optimized g-C₃N₄ doping facilitated the electron transfer and provided more reaction sites for TC removal. It showed high efficiency, stable TC degradation activity and environmental adaptability. Moreover, the active reaction site on TC was predicted via DFT calculation. In addition, through the analysis of the intermediates identified by LC-MS, the photo-decomposition pathways of TC were proposed. Based on the results of free radical trapping experiments and ESR spectroscopy, the mechanism of TC degradation was suggested. Finally, a toxicity assessment based on the molecular fractals data was carried out. The developed ABC showed higher visible light absorbance, better e⁻-h⁺ separation, and higher phase purity and crystallinity. Overall, this study provides valuable insights into the development of Z-scheme heterojunctions composite for efficient organic pollution degradation.</div></div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"4 1","pages":"Pages 21-32"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145765860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oxygen vacancy-rich mixed-valence manganese oxide mesoporous nanofiber membranes for the efficient removal of organic micropollutants","authors":"Yiping Su ,&nbsp;Gang Li ,&nbsp;Yangke Long ,&nbsp;Zuotai Zhang","doi":"10.1016/j.efmat.2024.12.002","DOIUrl":"10.1016/j.efmat.2024.12.002","url":null,"abstract":"<div><div>The treatment of mixed wastewater remains a formidable challenge due to the presence of complex organic micropollutants. Singlet oxygen (¹O₂)-based Fenton-like reactions have demonstrated superior degradation activity and stability compared to the conventional treatment methods, primarily owing to their high oxidant utilization efficiency and enhanced resistance to complex water matrices. Herein, the manganese oxides (MnO_x) composite catalysts were synthesized through electrospinning followed by calcination, aiming to facilitate efficient ¹O₂ generation for the treatment of simulated mixed wastewaters (Rhodamine B and 4-chlorophenol). The results from batch experiments indicated that optimizing the composition of MnO_x catalysts significantly enhances their activation capabilities for different oxidants, thereby broadening their applicability in diverse wastewater treatment scenarios. Notably, Mn₃O₄-based catalyst exhibited superior performance in periodate (PI) activation, while Mn₂O₃-based catalyst demonstrated enhanced efficiency in peroxymonosulfate (PMS) activation. Continuous flow reaction tests confirmed that the catalyst composite membrane sustained its stability, minimized metal ion leaching, and maintained its functional integrity over time. Analytical assessments identified ¹O₂ as the predominant reactive oxygen species (ROS) during the activation of both PMS and PI. Moreover, the synergistic effects of surface oxygen vacancies (OVs) and Mn³⁺ ions were found to significantly promote oxidant activation and ¹O₂ production. Density functional theory calculations further revealed that surface OVs facilitate catalyst chemisorption and enhance interfacial electronic transfer. This work presents an innovative approach for the design of MnO_x-based catalysts that operate predominantly via a non-radical pathway, highlighting their potential for effective large-scale degradation of micropollutants.</div></div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"3 2","pages":"Pages 95-107"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145871047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of “membrane” in membrane biofilm reactor (MBfR), membrane catalyst-film reactor (MCfR) and electrochemical membrane biofilm reactor (EMBfR): Mini review","authors":"Zhiye Sun ,&nbsp;Zhaoshun Zhan ,&nbsp;Lixin Li ,&nbsp;Zhurui Shen","doi":"10.1016/j.efmat.2024.12.001","DOIUrl":"10.1016/j.efmat.2024.12.001","url":null,"abstract":"<div><div>The wastewater treatment field introduces a groundbreaking technology known as the membrane biofilm reactor (MBfR), leveraging the principle of counter-diffusion between electron donors and acceptors within the biofilm. Within this system, a hydrophobic gas transfer membrane fulfills dual functions: serving as both a surface for biofilm attachment and a source of gas supply, thereby playing a pivotal role. Specially, the membrane catalyst-film reactor (MCfR) and electrochemical membrane biofilm reactor (EMBfR) systems derived from MBfR, enhancing the degradation of contaminants by catalytic and electrochemical processes, respectively. Prior research has predominantly focused on aspects such as pollutant removal efficiency, biofilm characteristics and microbial community composition. Conversely, there has been limited exploration into the membrane's unique properties. Consequently, this review aims to consolidate findings on the characteristics and functional modifications of membrane utilized in MBfR, MCfR and EMBfR systems, addressing the gap in existing literature concerning the “membrane” functional role in membrane reactor reviews.</div></div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"3 2","pages":"Pages 146-155"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145871050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CO2 capture and conversion into valuable chemicals using graphitic carbon nitride: A review","authors":"Mahmoud N. Almakhadmeh ,&nbsp;Mohamed N. Almubarak ,&nbsp;Sagheer A. Onaizi","doi":"10.1016/j.efmat.2024.10.001","DOIUrl":"10.1016/j.efmat.2024.10.001","url":null,"abstract":"<div><div>Carbon dioxide emission to the atmosphere are the main cause of global warming and the accompanying climate change. Accordingly, effective approaches have to be developed/implemented to tackle CO₂ emission and, ideally, reverse its negative consequences. Recently, graphitic carbon nitride (i.e., GCN or g-C₃N₄) has emerged as attractive material for CO₂ capture and conversion. However, recent, comprehensive reviews on the performance of g-C₃N₄ in the capture and conversion of CO₂ are still very limited in the published literature. Accordingly, this article presents a comprehensive review of the recent progress in the application of g-C₃N₄ for CO₂ capture and conversion. It commences with a brief introduction, followed by a brief overview of the structure of g-C₃N₄ and its commonly used synthesis methods. Detailed review of the recent studies on the utilization of g-C₃N₄ for CO₂ capture via adsorption is presented next. Yet, the main part of this review article is devoted to discuss recent progresses in the photocatalytic, electrocatalytic, and thermo-catalytic conversion of CO₂ using g-C₃N₄. The mechanisms of these processes, in addition to the effects of several factors on the conversion of CO₂ using g-C₃N₄ have also been thoroughly discussed. Outlooks and recommendations for future research work to address the challenges and obstacles facing the application of g-C₃N₄ for CO₂ capture and conversion have been highlighted at the end of this review.</div></div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"3 2","pages":"Pages 108-131"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145871048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microenvironment modulation of carbon-based single-atom catalysts for advanced oxidation processes","authors":"Zhong-Shuai Zhu,&nbsp;Pengtang Wang,&nbsp;Ya Liu,&nbsp;Shuang Zhong,&nbsp;Xiaoguang Duan,&nbsp;Shaobin Wang","doi":"10.1016/j.efmat.2025.01.002","DOIUrl":"10.1016/j.efmat.2025.01.002","url":null,"abstract":"<div><div>Advanced oxidation processes (AOPs) are among the most effective technologies for environmental remediation, particularly in removing recalcitrant organic pollutants from water. Carbon-based single-atom catalysts (CSACs) combine the strengths of both heterogeneous and homogeneous catalysts and maximize metal utilization via isolated metal active sites, thus fine-tuning the catalytic efficiency in AOPs via engineering molecular architecture. Atomically dispersed metal atoms are usually stabilized through ionic or covalent interactions with neighboring atoms, thus the geometric and electronic properties of CSACs are significantly affected by their local microenvironment. In this review, we explored recent advances in CSAC synthesis, emphasizing both bottom-up and top-down strategies, with a focus on microenvironment modulation. We also discussed the local microenvironment regulation of CSACs in AOPs, considering factors such as the first coordination sphere (metal center choice, site spacing/density and coordination structure) and the medium to long-range coordination (bimetallic doping, heteroatom doping/defect engineering and interface coupling). Finally, we outlined the challenges and prospects of CSAC microenvironment engineering, providing insights for advancing CSACs development in AOPs and beyond.</div></div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"3 2","pages":"Pages 132-145"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145871049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancement factors in sludge dewatering technology for wastewater treatment from engineering and economic perspectives: A review","authors":"Ali Pirouzi,&nbsp;Mehdi Rahimi Asrami,&nbsp;Mohammad Mehdi Sabzehmeidani","doi":"10.1016/j.efmat.2025.10.002","DOIUrl":"10.1016/j.efmat.2025.10.002","url":null,"abstract":"<div><div>The importance of the purifying municipal and industrial wastewater has increased due to a dramatically enhancing flow of sewage sludge in the last decades. There are various types of sludge including high water content, colloidal behavior, and compressibility. The sewage sludge contains about 1–5 ​wt% of solids and the remaining fraction of sludge is water (95–99 ​%). The huge amounts of sludge were produced in every year that confirmed the significant challenge in treatment of the sludge from sewage. Improving sludge dewatering reduces subsequent management and transport costs. To achieve this aim, it is necessary to investigate different sludge dewatering methods and indicators that affect sludge dewatering efficiency. In this review study, to clarify these two factors, existing technical understanding regarding sludge dewatering will be useful in practical applications, these two considerations will play a major role in the process of equipment selection and optimization measures. This study has investigated various techniques and devices for dewatering sewage sludge including mechanical, thermal, filtration, chemical, natural, and geotextile methods, and new methods that are the result of combining different processes. In the following, various parameters affecting the dewatering efficiency, including sludge characteristics, moisture content, costs, capacities, and environmental issues were examined, and at the end, challenges and limitations in dewatering processes were examined. Considering the very complex nature of sewage sludge, this study will help choose the sludge dewatering method and provide the conditions to increase the dewatering efficiency.</div></div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"3 2","pages":"Pages 171-186"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145871052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategies and applications of enhancing extracellular electron transfer in anaerobic digestion for wastewater resource recovery:A critical review","authors":"Longyi Lv ,&nbsp;Xinyuan Wang ,&nbsp;Duoying Zhang ,&nbsp;Xinyang Liu ,&nbsp;Jinsong Liang ,&nbsp;Xiaoyang Liu ,&nbsp;Wenfang Gao ,&nbsp;Li Sun ,&nbsp;Zhijun Ren ,&nbsp;Guangming Zhang","doi":"10.1016/j.efmat.2025.01.001","DOIUrl":"10.1016/j.efmat.2025.01.001","url":null,"abstract":"<div><div>Utilizing anaerobic digestion (AD) to treat wastewater while recovering the resources in the wastewater is research full of opportunities and challenges. Degradation of pollutants and the generation of resource recovery such as hydrogen and methane in AD relies on the crucial step of extracellular electron transfer (EET). However, the rate of EET in AD may be inhibited due to factors like pollutant toxicity, leading to slow resource recovery efficiency. Enhancing electron transfer process between microorganisms and pollutants through exogenous addition of electron shuttles can promote the degradation rate of pollutants and help the reaction system to detoxify rapidly. Exogenous addition of conductive materials can enhance electron transfer process between microorganisms and help improve the stability and efficiency of resource recovery process for hydrogen, methane, and high-value products. The review provided a comprehensive review of different types, mechanisms, and enhancement strategies of EET. The review summarized various approaches and mechanisms for promoting energy recovery in AD through the enhancement of EET and highlights limitations of current research. A discussion of the environmental and economic evaluation of exogenously added mediator-enhanced anaerobic resource recovery was presented in the review. Lastly, the review offered prospects for the application of strategies to enhance EET. The aim of the review is to further improve the applicability of enhancing EET in anaerobic wastewater treatment.</div></div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"3 2","pages":"Pages 156-170"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145871051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Persulfate activation by Fe, N co-doped carbon: Effect of N-containing groups on electron structure of Fe-Nx sites","authors":"Qin Wen ,&nbsp;Fei Qi ,&nbsp;Shizong Wang ,&nbsp;Zequan Zeng ,&nbsp;Zhanggen Huang","doi":"10.1016/j.efmat.2024.09.001","DOIUrl":"10.1016/j.efmat.2024.09.001","url":null,"abstract":"<div><div>Iron and nitrogen co-doped carbon (Fe-N-C) with Fe-N_<em>x</em> and graphitic N sites shows great potential in persulfate (PS) activation for organic pollutants degradation. Fe-N_<em>x</em> and graphitic N sites were quantified by X-ray photoelectron spectroscopy (XPS) to determine their ratios. The interaction between Fe-N_<em>x</em> and graphitic N and the mechanism affecting the catalytic activity were systematically explored by combining experiments and theoretical calculations. The results indicated a significant synergistic effect between Fe-N_<em>x</em> and graphitic N. Especially, Fe-N-C with a 1:4 ratio of Fe-N_<em>x</em> to graphitic N owned the highest turnover frequency (TOF) value (1.59 ​× ​10⁻³ ​g ​m⁻² min⁻¹). The contributions of radical mechanism influenced TOF values of Fe-N-C-rx to a certain extent. Theoretical calculations proved that the coordination environment could regulate the electronic structure of active sites, thereby affecting catalytic activity. Fe-N-C with a ratio of 1:4 Fe-N_<em>x</em> to graphitic N had maximum adsorption energy (<em>E</em>_ads), O-O bond length (<em>l</em>_O-O) and the optimal d-band center value, which promoted adsorption and electron transfer with PS. The 2,4-Dichlorophenol (2,4-DCP) degradation behavior was also explored by combining Fukui functions and mass spectrometry analysis.</div></div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"3 1","pages":"Pages 34-45"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}