Bi2O2S/CAU-17 双功能异质结可提高源自四环素同时光氧化的 CO2 光还原性能,Applied Surface Science

当前位置： X-MOL 学术 › Appl. Surf. Sci. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Bi2O2S/CAU-17 双功能异质结可提高源自四环素同时光氧化的 CO2 光还原性能
Applied Surface Science ( IF 6.3 ) Pub Date : 2024-03-21 , DOI: 10.1016/j.apsusc.2024.159943
Yinxiang Hu , Desen Zhou , Jiyu Qiu , Jun Zhang , Tielin Wang

为了解决能源短缺和环境污染的问题，采用光催化耦合系统在单个光催化系统中同时利用电子和空穴。目前的研究提出了一种构建盐酸四环素（TC）氧化和CO还原双反应途径系统的新方法。在此，通过简单的溶剂热方法设计和制造了 BiOS/CAU-17 复合材料。该混合光催化剂在同时降解 TC 和减少 CO 方面表现出优异的性能。通过优化的20% BiOS/CAU-17样品，CO产率可达到22.0 μmol gh。值得注意的是，反应体系中CO的来源完全来自TC的光氧化。理论计算和实验结果表明，现有的BIOS可以富集电子并分离CAU-17的光生电子，因此BIOS和CAU-17中的空穴可以参与TC的光降解。然后，TC氧化产生的CO通过分子扩散转移到BiOS，并可以被电子有效还原产生CO。这种新型双功能BiOS/CAU-17混合光催化系统的开发可以为光催化耦合的进步提供有价值的见解。反应系统。

"点击查看英文标题和摘要"

Bi2O2S/CAU-17 bifunctional heterojunction for boosting CO2 photoreduction performance origin from the simultaneous photoxidation of tetracycline

To address the issues of energy scarcity and environmental pollution, a photocatalytic coupling system is employed to simultaneously harness electrons and holes in a single photocatalytic system. The current study presents a novel approach to construct a dual reaction pathway system for tetracycline hydrochloride (TC) oxidation and CO reduction. Herein, BiOS/CAU-17 composite was designed and fabricated through a facile solvothermal method. The hybrid photocatalyst exhibited an excellent performance for simultaneous TC degradation and CO reduction. The CO-production rate can be reached 22.0 μmol gh through the optimized 20% BiOS/CAU-17 sample. Notably, the source of CO in the reaction system is solely derived from the photoxidation of TC. The theoretical calculations and experimental findings have shown that the existed BiOS can enrich electron and separation of photo-generated electrons from CAU-17, thus, the holes in BiOS and CAU-17 can be involved in the photodegradation of TC. Afterwards, the CO generated by TC oxidation moves to BiOS via diffusion of molecules and could be efficiently reduced by electrons to produce CO. The development of this novel bifunctional BiOS/CAU-17 hybrid photocatalytic system could provide valuable insights for the advancement of photocatalytic coupling reaction systems.

更新日期：2024-03-21

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南