气候变化领域集成服务门户(CCPortal): Oxygen vacancy in CoO/reduced graphene oxide composite for enhancing long-term effectiveness of photocatalytic CO2 reduction via mediating exciton

CCPortal

DOI	10.1088/2053-1583/ad0f2c
	Oxygen vacancy in CoO/reduced graphene oxide composite for enhancing long-term effectiveness of photocatalytic CO2 reduction via mediating exciton
	Wang, Rui; Du, Libo; Liu, Yang; Gu, Yueliang; Li, Xiaolong; Li, Yuehui
发表日期	2024
ISSN	2053-1583
起始页码	11
结束页码	1
卷号	11 期号:1
英文摘要	Photocatalytic reduction of carbon dioxide (CO2) has been expected to be an effective way to reduce carbon emissions. Designing photocatalytic materials with long-term effectiveness is the key of photocatalytic technology. In this work, CoO nanoparticles loaded on the surface of reduced graphene oxide (rGO) membranes on silicon substrate were in-situ fabricated by one-step method. The resulting materials can convert CO2 into carbon monoxide (CO) up to 70 h at a steady rate of similar to 185 +/- 30 mu mol g(-1) h(-1) with a selectivity of nearly 100%. This material system contained rich oxygen vacancies and generated new oxygen vacancies during the photocatalytic process. Oxygen vacancies mediate the interactions with excitons: (i) promoting the dissociation of free excitons; (ii) leading to form bound excitons under the coupling effect with phonons, inhibiting the recombination of photogenerated electrons and holes as well as enhancing the long-term effectiveness of photocatalytic CO2 reduction. We hope this work can provide valuable insights for the design and optimization of photocatalytic materials.
英文关键词	oxygen vacancy; CoO/rGO; long-term effectiveness; photocatalytic CO2 reduction; exciton
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001113461300001
来源期刊	2D MATERIALS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/293667
作者单位	Chinese Academy of Sciences; Institute of Chemistry, CAS; Chinese Academy of Sciences; Lanzhou Institute of Chemical Physics, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Shanghai Institute of Applied Physics, CAS
推荐引用方式 GB/T 7714	Wang, Rui,Du, Libo,Liu, Yang,et al. Oxygen vacancy in CoO/reduced graphene oxide composite for enhancing long-term effectiveness of photocatalytic CO2 reduction via mediating exciton[J],2024,11(1).
APA	Wang, Rui,Du, Libo,Liu, Yang,Gu, Yueliang,Li, Xiaolong,&Li, Yuehui.(2024).Oxygen vacancy in CoO/reduced graphene oxide composite for enhancing long-term effectiveness of photocatalytic CO2 reduction via mediating exciton.2D MATERIALS,11(1).
MLA	Wang, Rui,et al."Oxygen vacancy in CoO/reduced graphene oxide composite for enhancing long-term effectiveness of photocatalytic CO2 reduction via mediating exciton".2D MATERIALS 11.1(2024).