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Synthesis of New Hollow Nanocomposite Photocatalysts: Sunlight Applications for Removal of Gaseous Organic Pollutants
Journal of the Taiwan Institute of Chemical Engineers ( IF 5.5 ) Pub Date : 2020-06-10 , DOI: 10.1016/j.jtice.2020.04.002
Elham F. Mohamed , Trong-On Do

Synthesis of novel sunlight-driven hollow nano-composite photocatalysts has been considered as a future innovation technology to address air pollution remediation. The present work deals with the primary Pt-doped/TiO2 hollow nano-sized photocatalysts using carbon colloidal spheres as a sacrificial hard template. Then Cu2+ and Cd2+ as a co-doping operator were introduced, which balanced out the empty structure at higher temperature and controlled the Pt oxidation process. Here, the generation of sulfuric hollow of CuS/Pt–TiO2 and CuS-CdS/Pt–TiO2 via thermal treatment with H2S at 180C for 12h was performed as a new technique. The morphological structure of novel photocatalysts was characterized and their ability to decompose the isopropanol gas under solar irradiation was investigated; which is about 20 times higher than that of the conventional catalyst TiO2–P25. This presents for the first time one of the best TiO2 based photonanocatalysts under solar or visible light for promising environmental and industrial applications.



中文翻译:

新型空心纳米复合光催化剂的合成:去除气态有机污染物的阳光应用

新型阳光驱动的空心纳米复合光催化剂的合成已被认为是解决空气污染修复的未来创新技术。目前的工作涉及使用碳胶体球作为牺牲硬模板的主要的Pt掺杂/ TiO 2空心纳米尺寸的光催化剂。然后引入Cu 2+和Cd 2+作为共掺杂算子,在较高温度下平衡了空结构并控制了Pt氧化过程。这里,硫酸中空的CuS / Pt的氧化钛的生成2和的CuS-CDS /铂的TiO 2通过用H热处理2在180秒C进行12h作为一项新技术。表征了新型光催化剂的形态结构,研究了其在阳光照射下分解异丙醇气体的能力。这是传统催化剂TiO 2 -P25的约20倍。这是太阳能或可见光下首次出现的最佳的TiO 2基光纳米催化剂之一,有望用于有前景的环境和工业应用。

更新日期:2020-07-20
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