Supported g-C3N4/WO3 mixed layers for photocatalytic water remediation

IF 2.2 4区化学 Q2 Engineering Chemical Papers Pub Date : 2024-10-01 DOI:10.1007/s11696-024-03706-w

Libor Brabec, Eliska Mikyskova, Olha Zin, Barbora Walderova, Radek Zouzelka, Jiri Rathousky, Marco Weers, Arne Schechterle, Michael Wark

{"title":"Supported g-C3N4/WO3 mixed layers for photocatalytic water remediation","authors":"Libor Brabec, Eliska Mikyskova, Olha Zin, Barbora Walderova, Radek Zouzelka, Jiri Rathousky, Marco Weers, Arne Schechterle, Michael Wark","doi":"10.1007/s11696-024-03706-w","DOIUrl":null,"url":null,"abstract":"<div><p>g-C<sub>3</sub>N<sub>4</sub> layers with good mechanical properties, including their cohesion and adhesion to stainless-steel supports, were prepared by the quantitative electrophoretic co-deposition of g-C<sub>3</sub>N<sub>4</sub> and WO<sub>3</sub> nanocrystals. It was carried out in a mixture of organic solvents by applying a voltage of 750 V. The typical layer area density was 0.64 mg cm<sup>–2</sup>. The photocatalytic degradation of 4-chlorophenol under blue-light irradiation showed that the performance of stable composite layers containing 25–50 wt.% of WO<sub>3</sub> was only slightly weaker than that of unstable pristine g-C<sub>3</sub>N<sub>4</sub> ones. The high photocatalytic performance was due to g-C<sub>3</sub>N<sub>4</sub>, while WO<sub>3</sub> contributed to a good mechanical resistance of layers in stirred water. Finally, the composite layers exhibited a very high 4-chlorophenol mineralization of 75% in 24 h, even higher than the corresponding suspensions. Owing to their stability in water and performance, the developed layers are suitable for applications in environmental technologies.</p><h3>Graphic Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":513,"journal":{"name":"Chemical Papers","volume":"78 16","pages":"8749 - 8757"},"PeriodicalIF":2.2000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11696-024-03706-w.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Papers","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11696-024-03706-w","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Engineering","Score":null,"Total":0}

引用次数: 0

Abstract

g-C₃N₄ layers with good mechanical properties, including their cohesion and adhesion to stainless-steel supports, were prepared by the quantitative electrophoretic co-deposition of g-C₃N₄ and WO₃ nanocrystals. It was carried out in a mixture of organic solvents by applying a voltage of 750 V. The typical layer area density was 0.64 mg cm^–2. The photocatalytic degradation of 4-chlorophenol under blue-light irradiation showed that the performance of stable composite layers containing 25–50 wt.% of WO₃ was only slightly weaker than that of unstable pristine g-C₃N₄ ones. The high photocatalytic performance was due to g-C₃N₄, while WO₃ contributed to a good mechanical resistance of layers in stirred water. Finally, the composite layers exhibited a very high 4-chlorophenol mineralization of 75% in 24 h, even higher than the corresponding suspensions. Owing to their stability in water and performance, the developed layers are suitable for applications in environmental technologies.

Graphic Abstract

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

用于光催化水处理的支撑 g-C3N4/WO3 混合层

通过 g-C3N4 和 WO3 纳米晶体的定量电泳共沉积，制备出了具有良好机械性能（包括内聚力和对不锈钢支架的附着力）的 g-C3N4 层。典型层面积密度为 0.64 mg cm-2。在蓝光照射下对 4-氯苯酚的光催化降解表明，含有 25-50 wt.% WO3 的稳定复合层的性能仅略低于不稳定的纯 g-C3N4 层。g-C3N4 具有较高的光催化性能，而 WO3 则使复合层在搅拌水中具有良好的机械阻力。最后，复合层在 24 小时内的 4-氯苯酚矿化度高达 75%，甚至高于相应的悬浮液。由于其在水中的稳定性和性能，所开发的层适用于环境技术应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Chemical Papers Chemical Engineering-General Chemical Engineering

CiteScore

3.30

自引率

4.50%

发文量

590

期刊介绍： Chemical Papers is a peer-reviewed, international journal devoted to basic and applied chemical research. It has a broad scope covering the chemical sciences, but favors interdisciplinary research and studies that bring chemistry together with other disciplines.