Photocatalytic Bi2WO6/pg-C3N4-embedded in polyamide microfiltration membrane with enhanced performance in synergistic adsorption-photocatalysis of 17 beta-estradiol from water
文献类型：期刊论文
| 作者 | Qing, Yashi1,2; Li, Yanxiang1,2; Guo, Zhiwei1,2; Yang, Yujie1,2; Li, Wangliang1,2 |
| 刊名 | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 10期号:6页码:14 |
| 关键词 | 17?-estradiol Synergistic adsorption-photocatalysis Visible light photodegradation Polyamide membrane Alginate hydrogel |
| ISSN号 | 2213-2929 |
| DOI | 10.1016/j.jece.2022.108648 |
| 英文摘要 | 17 beta-estradiol (E2) is one of the endocrine disrupting chemicals (EDCs) ubiquitously with significant impacts on ecosystem and organisms even at extremely low concentrations. Photocatalytic membranes, with the combina-tion of photocatalysis and membrane filtration, have great potential to enhance E2 removal. In this work, a photocatalytic membrane was fabricated from the polyamide (PA) microfiltration membrane and visible light responsive Bi2WO6/protonated g-C3N4 (BPG) photocatalyst. The BPG photocatalyst was embedded into calcium alginate hydrogel followed by immobilizing onto PA membrane through vacuum filtration and crosslinking. The transparent calcium alginate hydrogel guaranteed 100% light transmittance which contributed to visible light induced photodegradation. Under static and dynamic conditions, the removal efficiency of E2 reached 99.5% and remained 95.1%, which was mainly owing to the synergistic effects of the adsorption of PA and photo -degradation of the BPG nanocomposites. The synergistic interaction was fitted by modified Elovich model, and a strong positive correlation (r = 0.834, rs = 0.965) was confirmed by Pearson's and Spearman's correlation co-efficient, indicating that adsorption could enhance photocatalysis by concentrating contaminants around the photocatalyst and photocatalysis could promote the adsorption by regenerating adsorption sites. The photo -catalytic membrane can be reused, and the removal efficiency of E2 was 96.6% after 5 cycles. This work provided not only a facile fabrication of photocatalytic membrane, but also a deep understanding of the synergistic adsorption-photocatalysis for effective removal of E2. |
| WOS关键词 | NANOFILTRATION MEMBRANES ; EFFICIENT REMOVAL ; MAGNETIC BIOCHAR ; FABRICATION ; NANOPARTICLES ; DEGRADATION ; POLLUTANTS ; MECHANISM ; HORMONES ; SORPTION |
| 资助项目 | National Natural Science Foundation of China[21978307] ; National Natural Science Foundation of China[22078347] ; National Natural Science Foundation of China[21961160745] ; Key Research and Development Program of Hebei Province, China[21373303D] ; Program of Innovation Academy for Green Manufacture, CAS[IAGM2020C04] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000864908300004 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; Key Research and Development Program of Hebei Province, China ; Program of Innovation Academy for Green Manufacture, CAS |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/55098]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Li, Yanxiang; Li, Wangliang |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qing, Yashi,Li, Yanxiang,Guo, Zhiwei,et al. Photocatalytic Bi2WO6/pg-C3N4-embedded in polyamide microfiltration membrane with enhanced performance in synergistic adsorption-photocatalysis of 17 beta-estradiol from water[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2022,10(6):14. |
| APA | Qing, Yashi,Li, Yanxiang,Guo, Zhiwei,Yang, Yujie,&Li, Wangliang.(2022).Photocatalytic Bi2WO6/pg-C3N4-embedded in polyamide microfiltration membrane with enhanced performance in synergistic adsorption-photocatalysis of 17 beta-estradiol from water.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,10(6),14. |
| MLA | Qing, Yashi,et al."Photocatalytic Bi2WO6/pg-C3N4-embedded in polyamide microfiltration membrane with enhanced performance in synergistic adsorption-photocatalysis of 17 beta-estradiol from water".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 10.6(2022):14. |
入库方式： OAI收割
来源：过程工程研究所
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