School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
Egyptian Petroleum Research Institute (EPRI), Cairo, 11727, Egypt.
Chemosphere. 2023 Sep;335:139125. doi: 10.1016/j.chemosphere.2023.139125. Epub 2023 Jun 3.
Currently, novel photocatalysts have attracted increasing attention to effectively utilizing abundant solar energy to meet the energy demands of humans and mitigate environmental burdens. In this work, we developed a novel and highly efficient photocatalyst consisting of InS doped with two elements (Ag and Zn) and decorated with reduced graphene oxide (rGO) sheets. The crystal structure, morphology, electrical properties, and optical properties of the prepared materials were studied using various analytical techniques, and their photocatalytic activity was thoroughly investigated. It was confirmed that within 10 min, over 97% decomposition of organic dyes was achieved by using Ag-Zn co-doped InS/rGO catalyst, while only 50 and 60% decompositions were achieved by conventional pure InS and InS/rGO nanocomposite, respectively. Its photoelectrochemical (PEC) water-splitting performance was also significantly improved (∼120%) compared with pure InS nanoparticles. This study provides a new vision of using Ag-Zn:InS decorated on rGO sheets as an efficient photocatalyst under solar light irradiation for environmental remediation and hydrogen production.
目前，新型光催化剂受到越来越多的关注，可有效利用丰富的太阳能，满足人类的能源需求，减轻环境负担。在这项工作中，我们开发了一种由 InS 掺杂两种元素（Ag 和 Zn）并负载还原氧化石墨烯（rGO）片组成的新型高效光催化剂。采用多种分析技术研究了所制备材料的晶体结构、形貌、电学性能和光学性能，并对其光催化活性进行了深入研究。结果证实，在 10 分钟内，使用 Ag-Zn 共掺杂 InS/rGO 催化剂可实现超过 97%的有机染料分解，而传统的纯 InS 和 InS/rGO 纳米复合材料的分解率分别仅为 50%和 60%。与纯 InS 纳米颗粒相比，其光电化学（PEC）水分解性能也显著提高（约 120%）。本研究为在太阳光照射下使用负载在 rGO 片上的 Ag-Zn:InS 作为高效光催化剂进行环境修复和制氢提供了新的思路。
