MWCNT-Based Ag2S-TiO2 Nanocomposites Photocatalyst: Ultrasound-Assisted Synthesis, Characterization, and Enhanced Catalytic Efficiency

MWCNT-Based Ag2S-TiO2 Nanocomposites Photocatalyst: Ultrasound-Assisted Synthesis, Characterization, and Enhanced Catalytic Efficiency

Multiwalled carbon nanotube based nanoscale Ag2S and TiO2 composites have successfully synthesized via a facile ultrasound-assisted method. The nanocomposites were characterized by Fourier transform infrared (FT-IR) spectroscopy, UV-vis absorption spectra, BET surface area measurements, X-ray diffra...

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Main Authors: Lei Zhu, Ze-Da Meng, Won-Chun Oh
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Journal of Nanomaterials
Online Access:http://dx.doi.org/10.1155/2012/586526
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spelling doaj-4958fee858014d149e46808b822ad43d2020-11-24T22:54:35ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292012-01-01201210.1155/2012/586526586526MWCNT-Based Ag2S-TiO2 Nanocomposites Photocatalyst: Ultrasound-Assisted Synthesis, Characterization, and Enhanced Catalytic EfficiencyLei Zhu0Ze-Da Meng1Won-Chun Oh2Department of Advanced Materials Science & Engineering, Hanseo University, Chungnam 356-706, Republic of KoreaDepartment of Advanced Materials Science & Engineering, Hanseo University, Chungnam 356-706, Republic of KoreaDepartment of Advanced Materials Science & Engineering, Hanseo University, Chungnam 356-706, Republic of KoreaMultiwalled carbon nanotube based nanoscale Ag2S and TiO2 composites have successfully synthesized via a facile ultrasound-assisted method. The nanocomposites were characterized by Fourier transform infrared (FT-IR) spectroscopy, UV-vis absorption spectra, BET surface area measurements, X-ray diffraction (XRD), and transmission electron microscopy (TEM). The Ag2S-TiO2/CNT nanocomposites exhibited much higher photocatalytic activity than pure TiO2 for the degradation of Rhodamine B (Rh.B) under UV and visible light. The improved photocatalytic activities may be attributed to increased adsorbability of Rh.B molecules and increased charge transfer rate in the presence of a one-dimensional MWCNT network.http://dx.doi.org/10.1155/2012/586526
collection DOAJ
language English
format Article
sources DOAJ
author Lei Zhu
Ze-Da Meng
Won-Chun Oh
spellingShingle Lei Zhu
Ze-Da Meng
Won-Chun Oh
MWCNT-Based Ag2S-TiO2 Nanocomposites Photocatalyst: Ultrasound-Assisted Synthesis, Characterization, and Enhanced Catalytic Efficiency
Journal of Nanomaterials
author_facet Lei Zhu
Ze-Da Meng
Won-Chun Oh
author_sort Lei Zhu
title MWCNT-Based Ag2S-TiO2 Nanocomposites Photocatalyst: Ultrasound-Assisted Synthesis, Characterization, and Enhanced Catalytic Efficiency
title_short MWCNT-Based Ag2S-TiO2 Nanocomposites Photocatalyst: Ultrasound-Assisted Synthesis, Characterization, and Enhanced Catalytic Efficiency
title_full MWCNT-Based Ag2S-TiO2 Nanocomposites Photocatalyst: Ultrasound-Assisted Synthesis, Characterization, and Enhanced Catalytic Efficiency
title_fullStr MWCNT-Based Ag2S-TiO2 Nanocomposites Photocatalyst: Ultrasound-Assisted Synthesis, Characterization, and Enhanced Catalytic Efficiency
title_full_unstemmed MWCNT-Based Ag2S-TiO2 Nanocomposites Photocatalyst: Ultrasound-Assisted Synthesis, Characterization, and Enhanced Catalytic Efficiency
title_sort mwcnt-based ag2s-tio2 nanocomposites photocatalyst: ultrasound-assisted synthesis, characterization, and enhanced catalytic efficiency
publisher Hindawi Limited
series Journal of Nanomaterials
issn 1687-4110
1687-4129
publishDate 2012-01-01
description Multiwalled carbon nanotube based nanoscale Ag2S and TiO2 composites have successfully synthesized via a facile ultrasound-assisted method. The nanocomposites were characterized by Fourier transform infrared (FT-IR) spectroscopy, UV-vis absorption spectra, BET surface area measurements, X-ray diffraction (XRD), and transmission electron microscopy (TEM). The Ag2S-TiO2/CNT nanocomposites exhibited much higher photocatalytic activity than pure TiO2 for the degradation of Rhodamine B (Rh.B) under UV and visible light. The improved photocatalytic activities may be attributed to increased adsorbability of Rh.B molecules and increased charge transfer rate in the presence of a one-dimensional MWCNT network.
url http://dx.doi.org/10.1155/2012/586526
work_keys_str_mv AT leizhu mwcntbasedag2stio2nanocompositesphotocatalystultrasoundassistedsynthesischaracterizationandenhancedcatalyticefficiency
AT zedameng mwcntbasedag2stio2nanocompositesphotocatalystultrasoundassistedsynthesischaracterizationandenhancedcatalyticefficiency
AT wonchunoh mwcntbasedag2stio2nanocompositesphotocatalystultrasoundassistedsynthesischaracterizationandenhancedcatalyticefficiency
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