Xiufang Zhang , Keke Zhang , Liuliu Yu , Xueqing Wang , Xiaoli Dong , Guanlong Wang
{"title":"具有独特光催化再生性能的 BiVO4 锚定碳气凝胶吸附剂可用于有效的水处理","authors":"Xiufang Zhang , Keke Zhang , Liuliu Yu , Xueqing Wang , Xiaoli Dong , Guanlong Wang","doi":"10.1016/j.jwpe.2024.106373","DOIUrl":null,"url":null,"abstract":"<div><div>Developing adsorbent with both high adsorption performance and facile regeneration character for water treatment is highly desirable but remains challenging. In this work, the carbon aerogel was loaded with BiVO<sub>4</sub> photocatalyst to construct a 3D composite adsorbent (CA/BVO) with distinctive photocatalytic regeneration performance for water purification, for which the CA/BVO after reaching adsorption saturation can be efficiently regenerated under visible-light illumination. The BiVO<sub>4</sub> loading amount was varied to investigate its effect on adsorption and photocatalytic regeneration performance of CA/BVO. Results showed the optimal CA/BVO-2 (moderate BiVO<sub>4</sub> loading) can realize effective phenol removal (98.7%) in long-term continuous fixed-bed adsorption and maintained over 80% of initial adsorption performance after four adsorption-regeneration cycles, whose regeneration performance was 20 times higher than that of CA alone. •OH was proven to be critical in photocatalytic regeneration process. Moreover, the CA/BVO-2 displayed superior phenol adsorption and good reproducibility during real surface water treatment, whose adsorption capacity was even 14% higher than that in ultrapure water background. The enhanced adsorption behavior of CA/BVO-2 in surface water was ascribed to the effect of coexisting components of humic acid and fulvic acid with rich oxygen-containing groups, which adsorbed on CA/BVO-2 and provided additional sites for favorable chemisorption of phenol.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":"Article 106373"},"PeriodicalIF":6.3000,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"BiVO4-anchored carbon aerogel adsorbent with unique photocatalytic regeneration performance for effective water treatment\",\"authors\":\"Xiufang Zhang , Keke Zhang , Liuliu Yu , Xueqing Wang , Xiaoli Dong , Guanlong Wang\",\"doi\":\"10.1016/j.jwpe.2024.106373\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Developing adsorbent with both high adsorption performance and facile regeneration character for water treatment is highly desirable but remains challenging. In this work, the carbon aerogel was loaded with BiVO<sub>4</sub> photocatalyst to construct a 3D composite adsorbent (CA/BVO) with distinctive photocatalytic regeneration performance for water purification, for which the CA/BVO after reaching adsorption saturation can be efficiently regenerated under visible-light illumination. The BiVO<sub>4</sub> loading amount was varied to investigate its effect on adsorption and photocatalytic regeneration performance of CA/BVO. Results showed the optimal CA/BVO-2 (moderate BiVO<sub>4</sub> loading) can realize effective phenol removal (98.7%) in long-term continuous fixed-bed adsorption and maintained over 80% of initial adsorption performance after four adsorption-regeneration cycles, whose regeneration performance was 20 times higher than that of CA alone. •OH was proven to be critical in photocatalytic regeneration process. Moreover, the CA/BVO-2 displayed superior phenol adsorption and good reproducibility during real surface water treatment, whose adsorption capacity was even 14% higher than that in ultrapure water background. The enhanced adsorption behavior of CA/BVO-2 in surface water was ascribed to the effect of coexisting components of humic acid and fulvic acid with rich oxygen-containing groups, which adsorbed on CA/BVO-2 and provided additional sites for favorable chemisorption of phenol.</div></div>\",\"PeriodicalId\":17528,\"journal\":{\"name\":\"Journal of water process engineering\",\"volume\":\"68 \",\"pages\":\"Article 106373\"},\"PeriodicalIF\":6.3000,\"publicationDate\":\"2024-10-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of water process engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2214714424016052\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of water process engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214714424016052","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
BiVO4-anchored carbon aerogel adsorbent with unique photocatalytic regeneration performance for effective water treatment
Developing adsorbent with both high adsorption performance and facile regeneration character for water treatment is highly desirable but remains challenging. In this work, the carbon aerogel was loaded with BiVO4 photocatalyst to construct a 3D composite adsorbent (CA/BVO) with distinctive photocatalytic regeneration performance for water purification, for which the CA/BVO after reaching adsorption saturation can be efficiently regenerated under visible-light illumination. The BiVO4 loading amount was varied to investigate its effect on adsorption and photocatalytic regeneration performance of CA/BVO. Results showed the optimal CA/BVO-2 (moderate BiVO4 loading) can realize effective phenol removal (98.7%) in long-term continuous fixed-bed adsorption and maintained over 80% of initial adsorption performance after four adsorption-regeneration cycles, whose regeneration performance was 20 times higher than that of CA alone. •OH was proven to be critical in photocatalytic regeneration process. Moreover, the CA/BVO-2 displayed superior phenol adsorption and good reproducibility during real surface water treatment, whose adsorption capacity was even 14% higher than that in ultrapure water background. The enhanced adsorption behavior of CA/BVO-2 in surface water was ascribed to the effect of coexisting components of humic acid and fulvic acid with rich oxygen-containing groups, which adsorbed on CA/BVO-2 and provided additional sites for favorable chemisorption of phenol.
期刊介绍：
The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
