Facile synthesis of Ag-ZnO core–shell nanostructures with enhanced photocatalytic activity

A. N. Kadam; D. P. Bhopate; V. V. Kondalkar; S. M. Majhi; C. D. Bathula; Anh Vy Tran; Sang Wha Lee

doi:10.1016/j.jiec.2017.12.003

Facile synthesis of Ag-ZnO core–shell nanostructures with enhanced photocatalytic activity

A. N. Kadam
, D. P. Bhopate
, V. V. Kondalkar
, S. M. Majhi
, C. D. Bathula
, Anh Vy Tran
, Sang Wha Lee

Department of Electronics & Electrical Engineering

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

226 Scopus citations

Abstract

Ag-ZnO core–shell nanostructure (CSNS) was prepared via a facile wet chemical approach. Formation was certified by various characterization techniques. The surface plasmon band of Ag-ZnO CSNS was red-shifted. Photoluminescence quenching for Ag-ZnO CSNS was attributed to improved charge separation. Ag-ZnO CSNS exhibited ∼6 times higher photocatalytic activity than pristine ZnO and ∼4 times higher than TiO₂ (P25). Such enhanced photocatalytic activity was attributed to synergistic effect, more charge separation, and higher surface area. Ag-ZnO CSNS also showed excellent photostability and reusability. Photocatalytic mechanism was discussed based on major reactive oxidative species such as [rad]OH and [rad]O₂ ⁻.

Original language	English
Pages (from-to)	78-86
Number of pages	9
Journal	Journal of Industrial and Engineering Chemistry
Volume	61
DOIs	https://doi.org/10.1016/j.jiec.2017.12.003
State	Published - 25 May 2018

Keywords

Ag-ZnO core–shell
Chemical synthesis
MO degradation
Photocatalysis
Reusable

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10.1016/j.jiec.2017.12.003

Cite this

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title = "Facile synthesis of Ag-ZnO core–shell nanostructures with enhanced photocatalytic activity",

abstract = "Ag-ZnO core–shell nanostructure (CSNS) was prepared via a facile wet chemical approach. Formation was certified by various characterization techniques. The surface plasmon band of Ag-ZnO CSNS was red-shifted. Photoluminescence quenching for Ag-ZnO CSNS was attributed to improved charge separation. Ag-ZnO CSNS exhibited ∼6 times higher photocatalytic activity than pristine ZnO and ∼4 times higher than TiO2 (P25). Such enhanced photocatalytic activity was attributed to synergistic effect, more charge separation, and higher surface area. Ag-ZnO CSNS also showed excellent photostability and reusability. Photocatalytic mechanism was discussed based on major reactive oxidative species such as [rad]OH and [rad]O2 −.",

keywords = "Ag-ZnO core–shell, Chemical synthesis, MO degradation, Photocatalysis, Reusable",

author = "Kadam, \{A. N.\} and Bhopate, \{D. P.\} and Kondalkar, \{V. V.\} and Majhi, \{S. M.\} and Bathula, \{C. D.\} and Tran, \{Anh Vy\} and Lee, \{Sang Wha\}",

note = "Publisher Copyright: {\textcopyright} 2017 The Korean Society of Industrial and Engineering Chemistry",

year = "2018",

month = may,

day = "25",

doi = "10.1016/j.jiec.2017.12.003",

language = "English",

volume = "61",

pages = "78--86",

journal = "Journal of Industrial and Engineering Chemistry",

issn = "1226-086X",

publisher = "Korean Society of Industrial Engineering Chemistry",

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TY - JOUR

T1 - Facile synthesis of Ag-ZnO core–shell nanostructures with enhanced photocatalytic activity

AU - Kadam, A. N.

AU - Bhopate, D. P.

AU - Kondalkar, V. V.

AU - Majhi, S. M.

AU - Bathula, C. D.

AU - Tran, Anh Vy

AU - Lee, Sang Wha

PY - 2018/5/25

Y1 - 2018/5/25

N2 - Ag-ZnO core–shell nanostructure (CSNS) was prepared via a facile wet chemical approach. Formation was certified by various characterization techniques. The surface plasmon band of Ag-ZnO CSNS was red-shifted. Photoluminescence quenching for Ag-ZnO CSNS was attributed to improved charge separation. Ag-ZnO CSNS exhibited ∼6 times higher photocatalytic activity than pristine ZnO and ∼4 times higher than TiO2 (P25). Such enhanced photocatalytic activity was attributed to synergistic effect, more charge separation, and higher surface area. Ag-ZnO CSNS also showed excellent photostability and reusability. Photocatalytic mechanism was discussed based on major reactive oxidative species such as [rad]OH and [rad]O2 −.

AB - Ag-ZnO core–shell nanostructure (CSNS) was prepared via a facile wet chemical approach. Formation was certified by various characterization techniques. The surface plasmon band of Ag-ZnO CSNS was red-shifted. Photoluminescence quenching for Ag-ZnO CSNS was attributed to improved charge separation. Ag-ZnO CSNS exhibited ∼6 times higher photocatalytic activity than pristine ZnO and ∼4 times higher than TiO2 (P25). Such enhanced photocatalytic activity was attributed to synergistic effect, more charge separation, and higher surface area. Ag-ZnO CSNS also showed excellent photostability and reusability. Photocatalytic mechanism was discussed based on major reactive oxidative species such as [rad]OH and [rad]O2 −.

KW - Ag-ZnO core–shell

KW - Chemical synthesis

KW - MO degradation

KW - Photocatalysis

KW - Reusable

UR - https://www.scopus.com/pages/publications/85038393161

U2 - 10.1016/j.jiec.2017.12.003

DO - 10.1016/j.jiec.2017.12.003

M3 - Article

AN - SCOPUS:85038393161

SN - 1226-086X

VL - 61

SP - 78

EP - 86

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

ER -

Facile synthesis of Ag-ZnO core–shell nanostructures with enhanced photocatalytic activity

Abstract

Keywords

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