One-Pot Growth of Dual-Semiconductor Coshells on Au Nanorods with Tunable Band Arrangements for Efficient Photocatalysis

Zheng, Zi-Xing1; Liang, Xi1; Lin, Hao1; Chen, Yan-Li1; Xia, Wen-Xi1; Ma, Liang1; Wang, Qu-Quan2

2024-03-07

10.1021/acsanm.4c00512

ACS APPLIED NANO MATERIALS   影响因子和分区

2574-0970

Metal core@semiconductor shell hybrids are regarded as promising candidates for plasmon-enhanced photocatalysis, but it remains a challenge to build semiconductor junctions on the shell region for further improved photocatalysis. Herein, Au core@dual-semiconductor coshell hybrids, whose shell was made by two different metal sulfides, were prepared by a one-pot direct growth method based on Au nanorods for highly improved photocatalysis for the first time. By inducing two different metal ions at the step of shell growth in a surfactant-assisted hydrothermal reaction, three types of Au@dual-semiconductor hybrids were prepared. In these hybrids, Au and two semiconductors intimately contact with each other, and three types of semiconductor heterojunctions including type I (ZnS-CdS), type II (Cu2-xS-Bi2S3), and Z-scheme (Bi2S3-CdS) are grown on Au nanorods. The as-prepared Au@dual-semiconductor hybrids show excellent photocatalytic activity on degrading rhodamine B under light irradiation, which is much higher than that of Au@single-semiconductor, semiconductor junctions, and Au@semiconductor@semiconductor hybrids with a double-layer shell. The enhanced mechanism can be ascribed to the accelerated carrier transfer and separation driven by the internal electric fields (IEFs) between semiconductors. Meanwhile, the plasmon-induced hot electron injection from Au to semiconductors can be promoted due to the cooperation of the Schottky junction or ohmic contact at metal-semiconductor interfaces and IEFs at semiconductor-semiconductor interfaces, which further promote the photocatalysis.

plasmon metal-semiconductorhybrids semiconductor heterojunction charge transfer photocatalysis

SCI ; EI

英语

通讯

Knowledge Innovation Program of Wuhan-Shuguang Project["11904270","12274379"] ; National Natural Science Foundation of China[2022CFB246] ; Natural Science Foundation of Hubei Province["2023020201020329","2023010201020439"]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001181198300001

AMER CHEMICAL SOC

Web of Science

1.Wuhan Inst Technol, Hubei Key Lab Opt Informat & Pattern Recognit, Wuhan 430205, Peoples R China
2.Southern Univ Sci & Technol, Coll Sci, Dept Phys, Shenzhen 518055, Peoples R China

Zheng, Zi-Xing,Liang, Xi,Lin, Hao,et al. One-Pot Growth of Dual-Semiconductor Coshells on Au Nanorods with Tunable Band Arrangements for Efficient Photocatalysis[J]. ACS APPLIED NANO MATERIALS,2024,7(6).

Zheng, Zi-Xing.,Liang, Xi.,Lin, Hao.,Chen, Yan-Li.,Xia, Wen-Xi.,...&Wang, Qu-Quan.(2024).One-Pot Growth of Dual-Semiconductor Coshells on Au Nanorods with Tunable Band Arrangements for Efficient Photocatalysis.ACS APPLIED NANO MATERIALS,7(6).

Zheng, Zi-Xing,et al."One-Pot Growth of Dual-Semiconductor Coshells on Au Nanorods with Tunable Band Arrangements for Efficient Photocatalysis".ACS APPLIED NANO MATERIALS 7.6(2024).