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Synergetic Effect of In and Ag Co-doped ZnS for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation

In (Indium) and Ag (Argentum) co-doped ZnS photocatalysts were successfully prepared by hydrothermal method to extend the light absorption of ZnS to the visible light region. The concentration of In was constant while for Ag was varied to optimize the photocatalytic activity. The In and Ag co-doped...

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Main Authors: Kimi, Melody, L., Yuliati, M., Shamsuddin
Format: E-Article
Language:English
Published: Trans Tech Publications 2014
Subjects:
QD Chemistry
Online Access:http://ir.unimas.my/id/eprint/7021/1/InAgZnS%20published-001.pdf
http://ir.unimas.my/id/eprint/7021/
http://www.scientific.net/AMR.1024.368
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spelling my.unimas.ir.70212015-09-10T03:14:58Z http://ir.unimas.my/id/eprint/7021/ Synergetic Effect of In and Ag Co-doped ZnS for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation Kimi, Melody L., Yuliati M., Shamsuddin QD Chemistry In (Indium) and Ag (Argentum) co-doped ZnS photocatalysts were successfully prepared by hydrothermal method to extend the light absorption of ZnS to the visible light region. The concentration of In was constant while for Ag was varied to optimize the photocatalytic activity. The In and Ag co-doped ZnS (Zinc Sulfide) photocatalysts showed smaller band gap energy compared to single doped In(0.1)-ZnS and undoped ZnS. The photocatalytic activity of In and Ag co-doped ZnS photocatalysts was evaluated from the amount of hydrogen produced. The hydrogen evolution rate from aqueous solution containing Na2SO3 (Sodium Sulfite) and Na2S (Sodium Sulfide) as sacrificial reagent under visible light irradiation obtained from In and Ag co-doped ZnS is higher compared to the single doped In(0.1)-ZnS when optimum amount of Ag dopant was added. The highest photocatalytic activity is observed for In(0.1),Ag(0.01)-ZnS with hydrogen production rate of 26.82 μmol/h. The higher performance of this photocatalyst is ascribed to the extended visible light absorption, efficient charge separation as well as improved electron transfer associated with synergistic effect of appropriate amount of In and Ag co-doped ZnS. Trans Tech Publications 2014 E-Article PeerReviewed text en http://ir.unimas.my/id/eprint/7021/1/InAgZnS%20published-001.pdf Kimi, Melody and L., Yuliati and M., Shamsuddin (2014) Synergetic Effect of In and Ag Co-doped ZnS for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation. Advanced Materials Research, 1024. pp. 368-371. ISSN 1662-8985 http://www.scientific.net/AMR.1024.368 doi:10.4028/www.scientific.net/AMR.1024.368
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Kimi, Melody
L., Yuliati
M., Shamsuddin
Synergetic Effect of In and Ag Co-doped ZnS for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation
description In (Indium) and Ag (Argentum) co-doped ZnS photocatalysts were successfully prepared by hydrothermal method to extend the light absorption of ZnS to the visible light region. The concentration of In was constant while for Ag was varied to optimize the photocatalytic activity. The In and Ag co-doped ZnS (Zinc Sulfide) photocatalysts showed smaller band gap energy compared to single doped In(0.1)-ZnS and undoped ZnS. The photocatalytic activity of In and Ag co-doped ZnS photocatalysts was evaluated from the amount of hydrogen produced. The hydrogen evolution rate from aqueous solution containing Na2SO3 (Sodium Sulfite) and Na2S (Sodium Sulfide) as sacrificial reagent under visible light irradiation obtained from In and Ag co-doped ZnS is higher compared to the single doped In(0.1)-ZnS when optimum amount of Ag dopant was added. The highest photocatalytic activity is observed for In(0.1),Ag(0.01)-ZnS with hydrogen production rate of 26.82 μmol/h. The higher performance of this photocatalyst is ascribed to the extended visible light absorption, efficient charge separation as well as improved electron transfer associated with synergistic effect of appropriate amount of In and Ag co-doped ZnS.
format E-Article
author Kimi, Melody
L., Yuliati
M., Shamsuddin
author_facet Kimi, Melody
L., Yuliati
M., Shamsuddin
author_sort Kimi, Melody
title Synergetic Effect of In and Ag Co-doped ZnS for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation
title_short Synergetic Effect of In and Ag Co-doped ZnS for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation
title_full Synergetic Effect of In and Ag Co-doped ZnS for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation
title_fullStr Synergetic Effect of In and Ag Co-doped ZnS for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation
title_full_unstemmed Synergetic Effect of In and Ag Co-doped ZnS for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation
title_sort synergetic effect of in and ag co-doped zns for enhanced photocatalytic hydrogen evolution under visible light irradiation
publisher Trans Tech Publications
publishDate 2014
url http://ir.unimas.my/id/eprint/7021/1/InAgZnS%20published-001.pdf
http://ir.unimas.my/id/eprint/7021/
http://www.scientific.net/AMR.1024.368
_version_ 1644510192293904384
score 13.211869

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