文献类型：期刊文献

英文题名：NiO/g-C3N4 quantum dots for photocatalytic CO2 reduction

作者：Tao, Feifei[1];Dong, Yali[1];Yang, Lingang[1]

机构：[1]Shaoxing Univ, Sch Chem & Chem Engn, Shaoxing 312000, Zhejiang, Peoples R China

年份：2023

卷号：638

外文期刊名：APPLIED SURFACE SCIENCE

收录：SCI-EXPANDED(收录号：WOS:001050195500001)、、EI(收录号：20233114459997)、Scopus(收录号：2-s2.0-85165947377)、WOS

基金：This work was supported by the National Natural Science Foundation of China (NSFC, grant Nos. 51372154, 20901051 and 21806109) and the Natural Science Foundation of Zhejiang Province of China (grant No. LY21B010005) .

语种：英文

外文关键词：Photocatalysis; Up-Conversion Effect; Petal-like Microtubes

外文摘要：Graphited C3N4 quantum dots (g-C3N4 QDs) exhibit an up-conversion effect, which allows them to absorb near infrared light and emit light with a shorter wavelength. By introducing g-C3N4 QDs to the surface of petal-like NiO microtubes, NiO/g-C3N4 QDs composites are successfully synthesized. Various techniques have been adopted to characterize the morphology, structure, and composition of the NiO/g-C3N4 QDs composites, and the interaction between NiO microtubes and g-C3N4 QDs has been confirmed. The usage of sunlight by the composite materials is enhanced with the aid of the up-conversion effect of g-C3N4 QDs and the novel petal-like tubular structure of NiO, which considerably improves the photocatalytic conversion of CO2 to CH4 and CO. When compared to NiO microtubes, the yields of CO and CH4 on NiO/g-C3N4 QDs are 2.1 and 4.2 times higher, respectively. The expanded light response range and the synergistic catalysis between g-C3N4 QDs and NiO microtubes are the primary causes of the increased photocatalytic activity of CO2 reduction on NiO/g-C3N4 QDs.