Visible-light-active 1D Ag-CoWO4/CdWO4 plasmonic photocatalysts boosting levofloxacin conversion

IF 5.5 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2022-04-01 DOI:10.1016/j.jtice.2022.104267

Feng Rong , Yisong Xue , Wenhao Tang , Qifang Lu , Mingzhi Wei , Enyan Guo , Yingping Pang

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引用次数: 11

Abstract

The photocatalysis stride is highly dependent on the design and construction of photocatalysts, marking high activity, and long-term stability. A novel photocatalyst of plasmonic Ag decorated CoWO₄/CdWO₄ (Ag-CoWO₄/CdWO₄) tube-like Z-scheme heterojunction was firstly constructed via two-step electrospinning and in-situ deposition approach. Benefiting from the synergistic effects of Z-scheme heterojunctions, 1D tubular structure, and the localized surface plasmon resonance (LSPR) effect of Ag nanoparticles, the Ag-CoWO₄/CdWO₄ heterostructured photocatalysts showed strong visible-light absorption, high charge separation, and a photocatalytic activity enhancement in levofloxacin (LVF) photocatalysis. Experimental results reveal that ·OH, h⁺ and ·O₂⁻ act as reactive species, promoting and accelerating LVF oxidation. Our work gives the idea of introducing a dedicated composite photocatalyst, conquering individual materials’ intrinsic limits, for wastewater in practical applications.

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可见光活性1D Ag-CoWO4/CdWO4等离子体光催化剂促进左氧氟沙星转化

光催化的进步高度依赖于光催化剂的设计和结构，标志着高活性和长期稳定性。采用两步静电纺丝和原位沉积的方法，首次构建了一种新型等离子体Ag修饰CoWO4/CdWO4 (Ag-CoWO4/CdWO4)管状z型异质结光催化剂。Ag- cowo4 /CdWO4异质结构光催化剂在左氧氟沙星(LVF)光催化中表现出强可见光吸收、高电荷分离和增强的光催化活性，得益于Z-scheme异质结、一维管状结构和Ag纳米粒子的局部表面等离子体共振(LSPR)效应的协同效应。实验结果表明，·OH、h+和·O2−作为反应物质，促进和加速LVF氧化。我们的工作提出了在实际应用中引入专用复合光催化剂的想法，克服了单个材料的内在限制。

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来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.