Enhanced photocatalytic hydrogen production over In-rich (Ag-In-Zn)S particles

Po Chang Lin; Pei Ying Wang; Yuan Yao Li; Chi Chung Hua; Tai Chou Lee

doi:10.1016/j.ijhydene.2013.04.125

Enhanced photocatalytic hydrogen production over In-rich (Ag-In-Zn)S particles

Po Chang Lin, Pei Ying Wang, Yuan Yao Li, Chi Chung Hua, Tai Chou Lee

Department of Chemical and Materials Engineering

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

13 Scopus citations

Abstract

The ratio of ZnS to AgInS₂ is usually adjusted to tune the band gaps of this quaternary (Ag-In-Zn)S semiconductor to increase photocatalytic activity. In this study, the [Zn]/[Ag] ratio was kept constant. The hydrogen production rate was enhanced by increasing the content of indium sulfide. Compared to the steady H₂ evolution rate obtained with equal moles of indium and silver ([In]/[Ag] = 1, 0.64 L/m² h), that obtained with In-rich photocatalyst ([In]/[Ag] = 2, 3.75 L/m² h) is over 5.86 times higher. The number of nanostep structures, on which the Pt cocatalysts were loaded by photodeposition, increased with the content of indium. The indium-rich samples did not induce phase separation between Ag_xIn _xZn_yS_2x+y and AgIn₅S₈, instead forming a single-phase solid solution. Although the photocatalytic activity decreased slightly for bare In-rich photocatalysts, Pt loading played a critical role in the hydrogen production rate. This study demonstrates the significant effect of In₂S₃ on this unique (Ag-In-Zn)S photocatalyst. ©

Original language	English
Pages (from-to)	8254-8262
Number of pages	9
Journal	International Journal of Hydrogen Energy
Volume	38
Issue number	20
DOIs	https://doi.org/10.1016/j.ijhydene.2013.04.125
State	Published - 9 Jul 2013

Keywords

Hydrogen production
Photocatalyst
Solar energy
Water splitting

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.ijhydene.2013.04.125

Cite this

@article{d511911b33d44b219982ed8551df900c,

title = "Enhanced photocatalytic hydrogen production over In-rich (Ag-In-Zn)S particles",

abstract = "The ratio of ZnS to AgInS2 is usually adjusted to tune the band gaps of this quaternary (Ag-In-Zn)S semiconductor to increase photocatalytic activity. In this study, the [Zn]/[Ag] ratio was kept constant. The hydrogen production rate was enhanced by increasing the content of indium sulfide. Compared to the steady H2 evolution rate obtained with equal moles of indium and silver ([In]/[Ag] = 1, 0.64 L/m2 h), that obtained with In-rich photocatalyst ([In]/[Ag] = 2, 3.75 L/m2 h) is over 5.86 times higher. The number of nanostep structures, on which the Pt cocatalysts were loaded by photodeposition, increased with the content of indium. The indium-rich samples did not induce phase separation between AgxIn xZnyS2x+y and AgIn5S8, instead forming a single-phase solid solution. Although the photocatalytic activity decreased slightly for bare In-rich photocatalysts, Pt loading played a critical role in the hydrogen production rate. This study demonstrates the significant effect of In2S3 on this unique (Ag-In-Zn)S photocatalyst. {\textcopyright}",

keywords = "Hydrogen production, Photocatalyst, Solar energy, Water splitting",

author = "Lin, {Po Chang} and Wang, {Pei Ying} and Li, {Yuan Yao} and Hua, {Chi Chung} and Lee, {Tai Chou}",

note = "Funding Information: This material is based on research sponsored by the Air Force Research Laboratory , under agreement number FA2386-11-1-4081. The U.S. Government is authorized to reproduce and distribute reprints for Governmental purposes notwithstanding any copyright notation thereon. Disclaimer : The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the Air Force Research Laboratory or the U.S. Government. The authors would like to thank the Instrument Center at National Chung Cheng University for assistance with SEM and TEM images, the Industrial Technology Research Institute for BET measurements, and Professor Ya-Sen Sun's Lab at National Central University for UV–Vis measurements. ",

year = "2013",

month = jul,

day = "9",

doi = "10.1016/j.ijhydene.2013.04.125",

language = "???core.languages.en_GB???",

volume = "38",

pages = "8254--8262",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

number = "20",

}

TY - JOUR

T1 - Enhanced photocatalytic hydrogen production over In-rich (Ag-In-Zn)S particles

AU - Lin, Po Chang

AU - Wang, Pei Ying

AU - Li, Yuan Yao

AU - Hua, Chi Chung

AU - Lee, Tai Chou

N1 - Funding Information: This material is based on research sponsored by the Air Force Research Laboratory , under agreement number FA2386-11-1-4081. The U.S. Government is authorized to reproduce and distribute reprints for Governmental purposes notwithstanding any copyright notation thereon. Disclaimer : The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the Air Force Research Laboratory or the U.S. Government. The authors would like to thank the Instrument Center at National Chung Cheng University for assistance with SEM and TEM images, the Industrial Technology Research Institute for BET measurements, and Professor Ya-Sen Sun's Lab at National Central University for UV–Vis measurements.

PY - 2013/7/9

Y1 - 2013/7/9

N2 - The ratio of ZnS to AgInS2 is usually adjusted to tune the band gaps of this quaternary (Ag-In-Zn)S semiconductor to increase photocatalytic activity. In this study, the [Zn]/[Ag] ratio was kept constant. The hydrogen production rate was enhanced by increasing the content of indium sulfide. Compared to the steady H2 evolution rate obtained with equal moles of indium and silver ([In]/[Ag] = 1, 0.64 L/m2 h), that obtained with In-rich photocatalyst ([In]/[Ag] = 2, 3.75 L/m2 h) is over 5.86 times higher. The number of nanostep structures, on which the Pt cocatalysts were loaded by photodeposition, increased with the content of indium. The indium-rich samples did not induce phase separation between AgxIn xZnyS2x+y and AgIn5S8, instead forming a single-phase solid solution. Although the photocatalytic activity decreased slightly for bare In-rich photocatalysts, Pt loading played a critical role in the hydrogen production rate. This study demonstrates the significant effect of In2S3 on this unique (Ag-In-Zn)S photocatalyst. ©

AB - The ratio of ZnS to AgInS2 is usually adjusted to tune the band gaps of this quaternary (Ag-In-Zn)S semiconductor to increase photocatalytic activity. In this study, the [Zn]/[Ag] ratio was kept constant. The hydrogen production rate was enhanced by increasing the content of indium sulfide. Compared to the steady H2 evolution rate obtained with equal moles of indium and silver ([In]/[Ag] = 1, 0.64 L/m2 h), that obtained with In-rich photocatalyst ([In]/[Ag] = 2, 3.75 L/m2 h) is over 5.86 times higher. The number of nanostep structures, on which the Pt cocatalysts were loaded by photodeposition, increased with the content of indium. The indium-rich samples did not induce phase separation between AgxIn xZnyS2x+y and AgIn5S8, instead forming a single-phase solid solution. Although the photocatalytic activity decreased slightly for bare In-rich photocatalysts, Pt loading played a critical role in the hydrogen production rate. This study demonstrates the significant effect of In2S3 on this unique (Ag-In-Zn)S photocatalyst. ©

KW - Hydrogen production

KW - Photocatalyst

KW - Solar energy

KW - Water splitting

UR - http://www.scopus.com/inward/record.url?scp=84879203148&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2013.04.125

DO - 10.1016/j.ijhydene.2013.04.125

M3 - 期刊論文

AN - SCOPUS:84879203148

SN - 0360-3199

VL - 38

SP - 8254

EP - 8262

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 20

ER -

Enhanced photocatalytic hydrogen production over In-rich (Ag-In-Zn)S particles

Abstract

Keywords

UN SDGs

Access to Document

Fingerprint

Cite this