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author:

Liu, Qiuwen (Liu, Qiuwen.) [1] | Wu, Yawei (Wu, Yawei.) [2] | Zhang, Jingwen (Zhang, Jingwen.) [3] | Chen, Kejun (Chen, Kejun.) [4] | Huang, Caijin (Huang, Caijin.) [5] | Chen, Hong (Chen, Hong.) [6] | Qiu, Xiaoqing (Qiu, Xiaoqing.) [7]

Indexed by:

EI

Abstract:

Localized surface plasmon resonance applied in catalytic and optical field has attracted more attentions in recent years. Plasmonic MoO3-x nanosheets with tunable oxygen vacancies were constructed via facile solvothermal method. The as-prepared MoO3-x nanosheets were found to have LSPR absorption band centered at 680 nm, and exhibited excellent photocatalytic performance in photodegradation of organic dyes and tetracycline under visible light irradiation. X-ray photoelectron spectroscopy showed the higher content of surface oxygen vacancies in MoO3-x (88 mmol). Photocurrent, electrochemical impedance spectroscopy and photoluminescence results demonstrated that MoO3-x (88 mmol) exhibits the best photo-induced electron hole separation efficiency and the highest charge transfer efficiency. Taken together, oxygen vacancies are not only responsible for the light harvesting in the visible and near-infrared region via LSPR, but also play a key role in greatly suppressing the recombination of photoexcited carriers. Moreover, electron paramagnetic resonance revealed that photoinduced h+ and ·OH radicals act as the main reactive species participating in the photoxidation process. © 2019 Elsevier B.V.

Keyword:

Charge transfer Efficiency Electrochemical impedance spectroscopy Free radicals Infrared devices Light Molybdenum oxide Nanosheets Oxygen vacancies Paramagnetic resonance Photocatalytic activity Photodegradation Plasmons Semiconductor quantum wells Surface plasmon resonance X ray photoelectron spectroscopy

Community:

  • [ 1 ] [Liu, Qiuwen]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350116, China
  • [ 2 ] [Wu, Yawei]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350116, China
  • [ 3 ] [Zhang, Jingwen]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350116, China
  • [ 4 ] [Chen, Kejun]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350116, China
  • [ 5 ] [Huang, Caijin]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350116, China
  • [ 6 ] [Chen, Hong]School of Materials Science and Energy Engineering, Foshan University, Guangdong; 528000, China
  • [ 7 ] [Qiu, Xiaoqing]Department of Chemistry and Chemical Engineering, Central South University, Changsha; 410083, China

Reprint 's Address:

  • [huang, caijin]state key laboratory of photocatalysis on energy and environment, college of chemistry, fuzhou university, fuzhou; 350116, china

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Source :

Applied Surface Science

ISSN: 0169-4332

Year: 2019

Volume: 490

Page: 395-402

6 . 1 8 2

JCR@2019

6 . 3 0 0

JCR@2023

ESI HC Threshold:236

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 90

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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