Single-step solvothermal synthesis of mesoporous Ag-TiO2-reduced graphene oxide ternary composites with enhanced photocatalytic activity

Md Selim Arif Sher Shah, Kan Zhang, A. Reum Park, Kwang Su Kim, Nam Gyu Park, Jong Hyeok Park, Pil J. Yoo

Research output: Contribution to journalArticle

154 Citations (Scopus)

Abstract

With growing interest in the photocatalytic performance of TiO 2-graphene composite systems, the ternary phase of TiO2, graphene, and Ag is expected to exhibit improved photocatalytic characteristics because of the improved recombination rate of photogenerated charge carriers and potential contribution of the generation of localized surface plasmon resonance at Ag sites on a surface of the TiO2-graphene binary matrix. In this work, Ag-TiO2-reduced graphene oxide ternary nanocomposites were successfully synthesized by a simple solvothermal process. In a single-step synthetic procedure, the reduction of AgNO3 and graphene oxide and the hydrolysis of titanium tetraisopropoxide were spontaneously performed in a mixed solvent system of ethylene glycol, N,N-dimethylformamide and a stoichiometric amount of water without resorting to the use of typical reducing agents. The nanocomposites were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, along with different microscopic and spectroscopic techniques, enabling us to confirm the successful reduction of AgNO3 and graphite oxide to metallic Ag and reduced graphene oxide, respectively. Due to the highly facilitated electron transport of well distributed Ag nanoparticles, the synthesized ternary nanocomposite showed enhanced photocatalytic activity for degradation of rhodamine B dye under visible light irradiation.

Original languageEnglish
Pages (from-to)5093-5101
Number of pages9
JournalNanoscale
Volume5
Issue number11
DOIs
Publication statusPublished - 2013 Jun 7

Fingerprint

Graphite
Oxides
Graphene
Composite materials
Nanocomposites
rhodamine B
Surface plasmon resonance
Dimethylformamide
Reducing agents
Ethylene glycol
Charge carriers
Ethylene Glycol
Reducing Agents
Large scale systems
Hydrolysis
X ray photoelectron spectroscopy
Dyes
Titanium
Irradiation
Nanoparticles

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Arif Sher Shah, Md Selim ; Zhang, Kan ; Park, A. Reum ; Kim, Kwang Su ; Park, Nam Gyu ; Park, Jong Hyeok ; Yoo, Pil J. / Single-step solvothermal synthesis of mesoporous Ag-TiO2-reduced graphene oxide ternary composites with enhanced photocatalytic activity. In: Nanoscale. 2013 ; Vol. 5, No. 11. pp. 5093-5101.
@article{09a40524477d47c4be867a189ebc31f6,
title = "Single-step solvothermal synthesis of mesoporous Ag-TiO2-reduced graphene oxide ternary composites with enhanced photocatalytic activity",
abstract = "With growing interest in the photocatalytic performance of TiO 2-graphene composite systems, the ternary phase of TiO2, graphene, and Ag is expected to exhibit improved photocatalytic characteristics because of the improved recombination rate of photogenerated charge carriers and potential contribution of the generation of localized surface plasmon resonance at Ag sites on a surface of the TiO2-graphene binary matrix. In this work, Ag-TiO2-reduced graphene oxide ternary nanocomposites were successfully synthesized by a simple solvothermal process. In a single-step synthetic procedure, the reduction of AgNO3 and graphene oxide and the hydrolysis of titanium tetraisopropoxide were spontaneously performed in a mixed solvent system of ethylene glycol, N,N-dimethylformamide and a stoichiometric amount of water without resorting to the use of typical reducing agents. The nanocomposites were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, along with different microscopic and spectroscopic techniques, enabling us to confirm the successful reduction of AgNO3 and graphite oxide to metallic Ag and reduced graphene oxide, respectively. Due to the highly facilitated electron transport of well distributed Ag nanoparticles, the synthesized ternary nanocomposite showed enhanced photocatalytic activity for degradation of rhodamine B dye under visible light irradiation.",
author = "{Arif Sher Shah}, {Md Selim} and Kan Zhang and Park, {A. Reum} and Kim, {Kwang Su} and Park, {Nam Gyu} and Park, {Jong Hyeok} and Yoo, {Pil J.}",
year = "2013",
month = "6",
day = "7",
doi = "10.1039/c3nr00579h",
language = "English",
volume = "5",
pages = "5093--5101",
journal = "Nanoscale",
issn = "2040-3364",
publisher = "Royal Society of Chemistry",
number = "11",

}

Single-step solvothermal synthesis of mesoporous Ag-TiO2-reduced graphene oxide ternary composites with enhanced photocatalytic activity. / Arif Sher Shah, Md Selim; Zhang, Kan; Park, A. Reum; Kim, Kwang Su; Park, Nam Gyu; Park, Jong Hyeok; Yoo, Pil J.

In: Nanoscale, Vol. 5, No. 11, 07.06.2013, p. 5093-5101.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Single-step solvothermal synthesis of mesoporous Ag-TiO2-reduced graphene oxide ternary composites with enhanced photocatalytic activity

AU - Arif Sher Shah, Md Selim

AU - Zhang, Kan

AU - Park, A. Reum

AU - Kim, Kwang Su

AU - Park, Nam Gyu

AU - Park, Jong Hyeok

AU - Yoo, Pil J.

PY - 2013/6/7

Y1 - 2013/6/7

N2 - With growing interest in the photocatalytic performance of TiO 2-graphene composite systems, the ternary phase of TiO2, graphene, and Ag is expected to exhibit improved photocatalytic characteristics because of the improved recombination rate of photogenerated charge carriers and potential contribution of the generation of localized surface plasmon resonance at Ag sites on a surface of the TiO2-graphene binary matrix. In this work, Ag-TiO2-reduced graphene oxide ternary nanocomposites were successfully synthesized by a simple solvothermal process. In a single-step synthetic procedure, the reduction of AgNO3 and graphene oxide and the hydrolysis of titanium tetraisopropoxide were spontaneously performed in a mixed solvent system of ethylene glycol, N,N-dimethylformamide and a stoichiometric amount of water without resorting to the use of typical reducing agents. The nanocomposites were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, along with different microscopic and spectroscopic techniques, enabling us to confirm the successful reduction of AgNO3 and graphite oxide to metallic Ag and reduced graphene oxide, respectively. Due to the highly facilitated electron transport of well distributed Ag nanoparticles, the synthesized ternary nanocomposite showed enhanced photocatalytic activity for degradation of rhodamine B dye under visible light irradiation.

AB - With growing interest in the photocatalytic performance of TiO 2-graphene composite systems, the ternary phase of TiO2, graphene, and Ag is expected to exhibit improved photocatalytic characteristics because of the improved recombination rate of photogenerated charge carriers and potential contribution of the generation of localized surface plasmon resonance at Ag sites on a surface of the TiO2-graphene binary matrix. In this work, Ag-TiO2-reduced graphene oxide ternary nanocomposites were successfully synthesized by a simple solvothermal process. In a single-step synthetic procedure, the reduction of AgNO3 and graphene oxide and the hydrolysis of titanium tetraisopropoxide were spontaneously performed in a mixed solvent system of ethylene glycol, N,N-dimethylformamide and a stoichiometric amount of water without resorting to the use of typical reducing agents. The nanocomposites were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, along with different microscopic and spectroscopic techniques, enabling us to confirm the successful reduction of AgNO3 and graphite oxide to metallic Ag and reduced graphene oxide, respectively. Due to the highly facilitated electron transport of well distributed Ag nanoparticles, the synthesized ternary nanocomposite showed enhanced photocatalytic activity for degradation of rhodamine B dye under visible light irradiation.

UR - http://www.scopus.com/inward/record.url?scp=84878144674&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84878144674&partnerID=8YFLogxK

U2 - 10.1039/c3nr00579h

DO - 10.1039/c3nr00579h

M3 - Article

C2 - 23640656

AN - SCOPUS:84878144674

VL - 5

SP - 5093

EP - 5101

JO - Nanoscale

JF - Nanoscale

SN - 2040-3364

IS - 11

ER -