TY - JOUR
T1 - A Comparative Study of Pt Depositing Methods (Chemical Reduction vs Photo-Assisted Deposition) onto TiO2 Nanoparticles for Hydrogen Photo-Production
AU - Ratnawati,
AU - Slamet,
AU - Wongso, Viona
AU - Gunlazuardi, Jarnuzi
AU - Ibadurrohman, Muhammad
N1 - Funding Information:
The authors gratefully acknowledge to Ministry of Research, Technology and Higher Education for its financial support of this study (Riset Dasar Grant No. 4/AKM/PNT/2019) and Universitas Indonesia for their cooperation in this research.
Publisher Copyright:
© 2022 Published by ITB Institute for Research and Community Services.
PY - 2022/11/18
Y1 - 2022/11/18
N2 - In this paper, we report a comparative study on two methods (chemical reduction and photo-assisted deposition) of incorporating Pt onto TiO2 nanoparticles (TNP) for H2 generation. The phase structure of the photocatalysts was scrutinized utilizing TEM and XRD. The degree of dispersion of Pt on the TNP was measured by a pulse chemisorption technique using TPDRO equipment. The results provided by TEM imagery, EDX spectra, elemental mapping, and AAS confirmed the successful deposition of Pt on TNP. XRD patterns confirmed an anatase and rutile crystallite structure, while UV-Vis spectra showed reduction of the bandgap from a typical value of 3.2 eV to ca. 2.9 eV. It was found that there is a correlation between the amount of Pt deposited on the TNP and Pt dispersion with H2 generation. The chemical reduction method offered a higher degree of Pt deposition, resulting in a 2.75 times larger amount of deposited Pt compared to photodeposition. This feature is perceived to contribute a higher H2 yield (3,283 µmol) at 1 w% of Pt loading.
AB - In this paper, we report a comparative study on two methods (chemical reduction and photo-assisted deposition) of incorporating Pt onto TiO2 nanoparticles (TNP) for H2 generation. The phase structure of the photocatalysts was scrutinized utilizing TEM and XRD. The degree of dispersion of Pt on the TNP was measured by a pulse chemisorption technique using TPDRO equipment. The results provided by TEM imagery, EDX spectra, elemental mapping, and AAS confirmed the successful deposition of Pt on TNP. XRD patterns confirmed an anatase and rutile crystallite structure, while UV-Vis spectra showed reduction of the bandgap from a typical value of 3.2 eV to ca. 2.9 eV. It was found that there is a correlation between the amount of Pt deposited on the TNP and Pt dispersion with H2 generation. The chemical reduction method offered a higher degree of Pt deposition, resulting in a 2.75 times larger amount of deposited Pt compared to photodeposition. This feature is perceived to contribute a higher H2 yield (3,283 µmol) at 1 w% of Pt loading.
KW - chemical reduction
KW - hydrogen
KW - photodeposition
KW - platinum
KW - TNP
UR - http://www.scopus.com/inward/record.url?scp=85146420788&partnerID=8YFLogxK
U2 - 10.5614/j.eng.technol.sci.2022.54.6.12
DO - 10.5614/j.eng.technol.sci.2022.54.6.12
M3 - Article
AN - SCOPUS:85146420788
SN - 2337-5779
VL - 54
JO - Journal of Engineering and Technological Sciences
JF - Journal of Engineering and Technological Sciences
IS - 6
M1 - 220612
ER -