Reduced graphene oxides-wrapped ZnO with notable photocatalytic property

Wei-Chen Hu; Yi-An Chen; Ping-Yen Hsieh; Chun-Wen Tsao; Yi-Hsuan Chiu; Tso-Fu Mark Chang; Chun-Yi Chen; Masato Sone; Yung-Jung Hsu

doi:10.1016/j.jtice.2020.05.016

Reduced graphene oxides-wrapped ZnO with notable photocatalytic property

Wei-Chen Hu, Yi-An Chen, Ping-Yen Hsieh, Chun-Wen Tsao, Yi-Hsuan Chiu, Tso-Fu Mark Chang, Chun-Yi Chen, Masato Sone, Yung-Jung Hsu^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

A facile, environmentally benign antisolvent method has been developed to prepare for reduced graphene oxides (RGO)-wrapped ZnO nanocrystals with controlled RGO contents. Because of the high electrical conductivity of RGO, the photogenerated electrons at ZnO mostly transported to RGO, leaving positively charged photoexcited holes in ZnO to result in charge separation. The steady-state photoluminescence, time-resolved photoluminescence spectroscopy and photovoltage decay analysis were employed to investigate charge carrier dynamics and charge transfer behaviors of RGO-ZnO. The influence of RGO content on the charge dynamics and photoconversion efficiency of RGO-ZnO toward dye degradation and water splitting has been realized. (C) 2020 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	337-344
Number of pages	8
Journal	Journal of the Taiwan Institute of Chemical Engineers
Volume	112
DOIs	https://doi.org/10.1016/j.jtice.2020.05.016
State	Published - Jul 2020

Keywords

ZnO
Reduced graphene oxides
Charge dynamics
Quantitative effect
Photocatalysis
CHARGE-CARRIER DYNAMICS
ELECTROCHEMICAL DEPOSITION
SHELL NANOCRYSTALS
QUANTUM DOTS
NANOSTRUCTURES
SEMICONDUCTOR
NANORODS
DEGRADATION
NANOHETEROSTRUCTURES
PHOTOANODES

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jtice.2020.05.016

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@article{eac67f62919849be83016839e53d145f,

title = "Reduced graphene oxides-wrapped ZnO with notable photocatalytic property",

abstract = "A facile, environmentally benign antisolvent method has been developed to prepare for reduced graphene oxides (RGO)-wrapped ZnO nanocrystals with controlled RGO contents. Because of the high electrical conductivity of RGO, the photogenerated electrons at ZnO mostly transported to RGO, leaving positively charged photoexcited holes in ZnO to result in charge separation. The steady-state photoluminescence, time-resolved photoluminescence spectroscopy and photovoltage decay analysis were employed to investigate charge carrier dynamics and charge transfer behaviors of RGO-ZnO. The influence of RGO content on the charge dynamics and photoconversion efficiency of RGO-ZnO toward dye degradation and water splitting has been realized. (C) 2020 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.",

keywords = "ZnO, Reduced graphene oxides, Charge dynamics, Quantitative effect, Photocatalysis, CHARGE-CARRIER DYNAMICS, ELECTROCHEMICAL DEPOSITION, SHELL NANOCRYSTALS, QUANTUM DOTS, NANOSTRUCTURES, SEMICONDUCTOR, NANORODS, DEGRADATION, NANOHETEROSTRUCTURES, PHOTOANODES",

author = "Wei-Chen Hu and Yi-An Chen and Ping-Yen Hsieh and Chun-Wen Tsao and Yi-Hsuan Chiu and Chang, {Tso-Fu Mark} and Chun-Yi Chen and Masato Sone and Yung-Jung Hsu",

year = "2020",

month = jul,

doi = "10.1016/j.jtice.2020.05.016",

language = "English",

volume = "112",

pages = "337--344",

journal = "Journal of the Taiwan Institute of Chemical Engineers",

issn = "1876-1070",

publisher = "Taiwan Institute of Chemical Engineers",

}

TY - JOUR

T1 - Reduced graphene oxides-wrapped ZnO with notable photocatalytic property

AU - Hu, Wei-Chen

AU - Chen, Yi-An

AU - Hsieh, Ping-Yen

AU - Tsao, Chun-Wen

AU - Chiu, Yi-Hsuan

AU - Chang, Tso-Fu Mark

AU - Chen, Chun-Yi

AU - Sone, Masato

AU - Hsu, Yung-Jung

PY - 2020/7

Y1 - 2020/7

N2 - A facile, environmentally benign antisolvent method has been developed to prepare for reduced graphene oxides (RGO)-wrapped ZnO nanocrystals with controlled RGO contents. Because of the high electrical conductivity of RGO, the photogenerated electrons at ZnO mostly transported to RGO, leaving positively charged photoexcited holes in ZnO to result in charge separation. The steady-state photoluminescence, time-resolved photoluminescence spectroscopy and photovoltage decay analysis were employed to investigate charge carrier dynamics and charge transfer behaviors of RGO-ZnO. The influence of RGO content on the charge dynamics and photoconversion efficiency of RGO-ZnO toward dye degradation and water splitting has been realized. (C) 2020 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

AB - A facile, environmentally benign antisolvent method has been developed to prepare for reduced graphene oxides (RGO)-wrapped ZnO nanocrystals with controlled RGO contents. Because of the high electrical conductivity of RGO, the photogenerated electrons at ZnO mostly transported to RGO, leaving positively charged photoexcited holes in ZnO to result in charge separation. The steady-state photoluminescence, time-resolved photoluminescence spectroscopy and photovoltage decay analysis were employed to investigate charge carrier dynamics and charge transfer behaviors of RGO-ZnO. The influence of RGO content on the charge dynamics and photoconversion efficiency of RGO-ZnO toward dye degradation and water splitting has been realized. (C) 2020 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

KW - ZnO

KW - Reduced graphene oxides

KW - Charge dynamics

KW - Quantitative effect

KW - Photocatalysis

KW - CHARGE-CARRIER DYNAMICS

KW - ELECTROCHEMICAL DEPOSITION

KW - SHELL NANOCRYSTALS

KW - QUANTUM DOTS

KW - NANOSTRUCTURES

KW - SEMICONDUCTOR

KW - NANORODS

KW - DEGRADATION

KW - NANOHETEROSTRUCTURES

KW - PHOTOANODES

U2 - 10.1016/j.jtice.2020.05.016

DO - 10.1016/j.jtice.2020.05.016

M3 - Article

SN - 1876-1070

VL - 112

SP - 337

EP - 344

JO - Journal of the Taiwan Institute of Chemical Engineers

JF - Journal of the Taiwan Institute of Chemical Engineers

ER -

Reduced graphene oxides-wrapped ZnO with notable photocatalytic property

Abstract

Keywords

UN SDGs

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Cite this