Boosting photocatalytic hydrogen generation and Photo-Destruction of Tetracycline by In-Situ oxygen vacancies ZnIn2S4

IF 4.1 2区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Science Pub Date : 2024-11-06 DOI:10.1016/j.ces.2024.120900

Hardy Shuwanto , Jenni Lie , Hairus Abdullah , Subur P. Pasaribu , Indra Masmur

{"title":"Boosting photocatalytic hydrogen generation and Photo-Destruction of Tetracycline by In-Situ oxygen vacancies ZnIn2S4","authors":"Hardy Shuwanto , Jenni Lie , Hairus Abdullah , Subur P. Pasaribu , Indra Masmur","doi":"10.1016/j.ces.2024.120900","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, ZnIn2S4 with oxygen vacancies was fabricated using NaBH4-assisted hydrothermal method to enhance the photocatalytic activities. The generated ZIS and ZISVo-x samples exhibited microspherical nanosheet structure and it is proven that NaBH4 could enhance the amount of oxygen vacancies in ZnIn2S4 as confirmed by XPS analysis. Upon solar light irradiation, ZISVo-5 sample performed a fast photodegradation of tetracycline (TC) within 10 min and simultaneously exhibited a hydrogen evolution amount of ∼ 12 mmol (AQE = 6.07 at 420 nm), which is 2.75 times higher than that of pristine ZnIn2S4 (4.4 mmol). The degraded products of TC were further identified using LC-MS. The excellent photocatalytic HER performance was attributed to the optimum amount of oxygen vacancies in ZISVo-5 sample and the reactive oxygen species of •OH, O2•-, and 1O2 as confirmed by ESR analysis under light irradiation played a vital role for the rapid degradation of TC by ZISVo-5.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"302 ","pages":"Article 120900"},"PeriodicalIF":4.1000,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Science","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0009250924012004","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

In this study, ZnIn₂S₄ with oxygen vacancies was fabricated using NaBH₄-assisted hydrothermal method to enhance the photocatalytic activities. The generated ZIS and ZISVo-x samples exhibited microspherical nanosheet structure and it is proven that NaBH₄ could enhance the amount of oxygen vacancies in ZnIn₂S₄ as confirmed by XPS analysis. Upon solar light irradiation, ZISVo-5 sample performed a fast photodegradation of tetracycline (TC) within 10 min and simultaneously exhibited a hydrogen evolution amount of ∼ 12 mmol (AQE = 6.07 at 420 nm), which is 2.75 times higher than that of pristine ZnIn₂S₄ (4.4 mmol). The degraded products of TC were further identified using LC-MS. The excellent photocatalytic HER performance was attributed to the optimum amount of oxygen vacancies in ZISVo-5 sample and the reactive oxygen species of •OH, O₂^•-, and ¹O₂ as confirmed by ESR analysis under light irradiation played a vital role for the rapid degradation of TC by ZISVo-5.

查看原文本刊更多论文

利用原位氧空位 ZnIn2S4 促进光催化制氢并光解四环素

本研究采用 NaBH4 辅助水热法制备了具有氧空位的 ZnIn2S4，以提高其光催化活性。生成的 ZIS 和 ZISVo-x 样品呈现出微球状纳米片结构，XPS 分析证实 NaBH4 能提高 ZnIn2S4 中氧空位的含量。在太阳光照射下，ZISVo-5 样品在 10 分钟内对四环素（TC）进行了快速光降解，同时显示出 12 mmol 的氢进化量（420 nm 波长下的 AQE = 6.07），是原始 ZnIn2S4（4.4 mmol）的 2.75 倍。利用 LC-MS 进一步鉴定了 TC 的降解产物。ZISVo-5 具有优异的光催化 HER 性能，这归功于 ZISVo-5 样品中具有最佳数量的氧空位，而且 ESR 分析证实，在光照射下，-OH、O2-- 和 1O2 等活性氧物种对 ZISVo-5 快速降解 TC 起到了至关重要的作用。

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分钟内获得全文求助全文

来源期刊

Chemical Engineering Science 工程技术-工程：化工

CiteScore

7.50

自引率

8.50%

发文量

1025

审稿时长

50 days

期刊介绍： Chemical engineering enables the transformation of natural resources and energy into useful products for society. It draws on and applies natural sciences, mathematics and economics, and has developed fundamental engineering science that underpins the discipline. Chemical Engineering Science (CES) has been publishing papers on the fundamentals of chemical engineering since 1951. CES is the platform where the most significant advances in the discipline have ever since been published. Chemical Engineering Science has accompanied and sustained chemical engineering through its development into the vibrant and broad scientific discipline it is today.