Construction of 0D/1D Cd0.5Zn0.5S/VO2 S-Scheme Heterojunction for Visible Light Photocatalytic Hydrogen Generation via Water Splitting
SU Ping
YU Jiahui
DENG Peixin
QU Deliang
LIANG Tengteng
ZHAO Huaihao
YANG Nan
ZHANG Dafeng
GE Bo
PU Xipeng
Abstract：A S-scheme heterojunction photocatalyst of 0D/1D Cd0.5Zn0.5S/VO2 was prepared using a co-precipitation method.X-ray powder diffractometer,X-ray photoelectron spectroscopy,scanning and trans-mission electron microscopy were used to characterize the photocatalysts in terms of physical structure,el-emental composition and microscopic morphology.Photocatalytic hydrogen generation properties of the photocatalysts were studied under visible light irradiation,and the results showed that the optimized CZS/VO composites possessed excellent visible photocatalytic hydrogen generation activity.Especially,when the mass fraction of VO was 10％,the hydrogen generation rate of the CZS/VO photocatalyst was up to 7.2 mmol·h-1·g-1,which was 4.2 times higher than that of pristine CZS.Meanwhile,the photocata-lyst exhibited good cycling stability in four cycling tests.This is mainly attributed to the synergistic effect of its unique 0D/1D morphology and the S-type heterojunction,which greatly accelerates the interfacial migration and segregation of photo-excited carriers and results in higher redox capacities of photo-induced charges.
Keywords：hydrogen generation via water splitting0D/1DS-scheme heterojunctionCd0.5Zn05SVO2
Publication Date：2024-10-28
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：9( 123-131 )