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.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
