催化作用
材料科学
光催化
光降解
氧化铈
石墨烯
双功能
铈
氧化物
化学工程
环境友好型
纳米技术
有机化学
化学
工程类
生物
冶金
生态学
作者
R. Rathes Kannan,Ae Rhan Kim,Seong Kug Eo,Seong Ho Kang,S. Karthikeyan
标识
DOI:10.1016/j.ceramint.2016.11.116
摘要
Improvement in the catalytic activity of nanostructured cerium oxides (CeOx) was attained by incorporating in-situ generated heteroatom-(N and S)-doped carbon quantum dots/reduced graphene oxide ([email protected]) nanohybrid catalyst for the degradation of organic pollutants. The [email protected] nanohybrid catalyst was synthesized by a facile, one-pot hydrothermal eco-friendly process. The HDCQD plays a vital role to improve the interaction between CeOx and RGO and function as a sensitizer for the electron-transfer process with CeOx. The size of CeOx and HDCQD are 10 nm and 5 nm, respectively. The nanostructured CeOx possesses multiple oxygen vacancies; this helps to generate the active oxygen and hydroxyl radicals. The active hydroxyl radical generation by the photocatalytic process with the help of nanostructured CeOx results in the improved photodegradation of organic pollutants. In addition, the prepared [email protected] nanohybrid catalyst exhibits an improved water oxidation reaction. The [email protected] nanohybrid performs as an excellent bifunctional catalyst for energy and environmental applications. The method presented here is a facile and environmentally friendly, scalable synthesis of the highly efficient catalyst.
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