Enhanced photocatalytic activity of ZnO microspheres via hybridization with CuInSe 2 and CuInS 2 nanocrystals

Fengyu Shen; Wenxiu Que; Yucheng He; Yuan Yuan; Xingtian Yin; Gangfeng Wang

doi:10.1021/am3008533

Enhanced photocatalytic activity of ZnO microspheres via hybridization with CuInSe ₂ and CuInS ₂ nanocrystals

Fengyu Shen
, Wenxiu Que
, Yucheng He
, Yuan Yuan
, Xingtian Yin
, Gangfeng Wang

Xi'an Jiaotong University

科研成果: 期刊稿件 › 文章 › 同行评审

69 引用（Scopus）

摘要

ZnO microspheres sensitized by CuInSe ₂ and CuInS ₂ nanoparticles, which were synthesized by a solvothermal method and have a size about 20 and 3.5 nm, respectively, were used to a photodegradation of rhodamine B under an irradiation of mercury lamp. Results show that the photocatalytic activities of the ZnO/CuInSe ₂ and the ZnO/CuInS ₂ are much higher than that of the ZnO microspheres because of a formation of the heterojunction in two systems. It is also noted that the ZnO/CuInS ₂ exhibits a higher photocatalytic activity than the ZnO/CuInSe ₂, which is probably related to more suitable band gap to sunlight for CuInS ₂ nanocrystals and the larger specific surface due to a small size. Particularly, the ZnO/CuInSe ₂/CuInS ₂ shows the highest photocatalytic activities in all measured photocatalysts, which should be attributed to the formation of double heterojunctions among ZnO, CuInSe ₂, and CuInS ₂.

源语言	英语
页（从-至）	4087-4092
页数	6
期刊	ACS Applied Materials and Interfaces
卷	4
期	8
DOI	https://doi.org/10.1021/am3008533
出版状态	已出版 - 22 8月 2012

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10.1021/am3008533

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@article{b37571b3a413455e8d7747c2a503e8de,

title = "Enhanced photocatalytic activity of ZnO microspheres via hybridization with CuInSe 2 and CuInS 2 nanocrystals",

abstract = "ZnO microspheres sensitized by CuInSe 2 and CuInS 2 nanoparticles, which were synthesized by a solvothermal method and have a size about 20 and 3.5 nm, respectively, were used to a photodegradation of rhodamine B under an irradiation of mercury lamp. Results show that the photocatalytic activities of the ZnO/CuInSe 2 and the ZnO/CuInS 2 are much higher than that of the ZnO microspheres because of a formation of the heterojunction in two systems. It is also noted that the ZnO/CuInS 2 exhibits a higher photocatalytic activity than the ZnO/CuInSe 2, which is probably related to more suitable band gap to sunlight for CuInS 2 nanocrystals and the larger specific surface due to a small size. Particularly, the ZnO/CuInSe 2/CuInS 2 shows the highest photocatalytic activities in all measured photocatalysts, which should be attributed to the formation of double heterojunctions among ZnO, CuInSe 2, and CuInS 2.",

keywords = "CuInS, CuInSe, Rhodamine B, ZnO, heterojunction, photocatalytic activity",

author = "Fengyu Shen and Wenxiu Que and Yucheng He and Yuan Yuan and Xingtian Yin and Gangfeng Wang",

year = "2012",

month = aug,

day = "22",

doi = "10.1021/am3008533",

language = "英语",

volume = "4",

pages = "4087--4092",

journal = "ACS Applied Materials and Interfaces",

issn = "1944-8244",

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TY - JOUR

T1 - Enhanced photocatalytic activity of ZnO microspheres via hybridization with CuInSe 2 and CuInS 2 nanocrystals

AU - Shen, Fengyu

AU - Que, Wenxiu

AU - He, Yucheng

AU - Yuan, Yuan

AU - Yin, Xingtian

AU - Wang, Gangfeng

PY - 2012/8/22

Y1 - 2012/8/22

N2 - ZnO microspheres sensitized by CuInSe 2 and CuInS 2 nanoparticles, which were synthesized by a solvothermal method and have a size about 20 and 3.5 nm, respectively, were used to a photodegradation of rhodamine B under an irradiation of mercury lamp. Results show that the photocatalytic activities of the ZnO/CuInSe 2 and the ZnO/CuInS 2 are much higher than that of the ZnO microspheres because of a formation of the heterojunction in two systems. It is also noted that the ZnO/CuInS 2 exhibits a higher photocatalytic activity than the ZnO/CuInSe 2, which is probably related to more suitable band gap to sunlight for CuInS 2 nanocrystals and the larger specific surface due to a small size. Particularly, the ZnO/CuInSe 2/CuInS 2 shows the highest photocatalytic activities in all measured photocatalysts, which should be attributed to the formation of double heterojunctions among ZnO, CuInSe 2, and CuInS 2.

AB - ZnO microspheres sensitized by CuInSe 2 and CuInS 2 nanoparticles, which were synthesized by a solvothermal method and have a size about 20 and 3.5 nm, respectively, were used to a photodegradation of rhodamine B under an irradiation of mercury lamp. Results show that the photocatalytic activities of the ZnO/CuInSe 2 and the ZnO/CuInS 2 are much higher than that of the ZnO microspheres because of a formation of the heterojunction in two systems. It is also noted that the ZnO/CuInS 2 exhibits a higher photocatalytic activity than the ZnO/CuInSe 2, which is probably related to more suitable band gap to sunlight for CuInS 2 nanocrystals and the larger specific surface due to a small size. Particularly, the ZnO/CuInSe 2/CuInS 2 shows the highest photocatalytic activities in all measured photocatalysts, which should be attributed to the formation of double heterojunctions among ZnO, CuInSe 2, and CuInS 2.

KW - CuInS

KW - CuInSe

KW - Rhodamine B

KW - ZnO

KW - heterojunction

KW - photocatalytic activity

UR - https://www.scopus.com/pages/publications/84865216293

U2 - 10.1021/am3008533

DO - 10.1021/am3008533

M3 - 文章

C2 - 22774978

AN - SCOPUS:84865216293

SN - 1944-8244

VL - 4

SP - 4087

EP - 4092

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 8

ER -

Enhanced photocatalytic activity of ZnO microspheres via hybridization with CuInSe 2 and CuInS 2 nanocrystals

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Enhanced photocatalytic activity of ZnO microspheres via hybridization with CuInSe ₂ and CuInS ₂ nanocrystals