Green hydrogen production by solar photocatalysis using Pt-TiO2 nanosheets with reactive facets

Bin Wang; Daniel H C Wan; Altair T F Cheung; Dennis Y C Leung; Xiao-Ying Lu; Michael K H Leung

doi:10.33430/V28N2THIE-2020-0039

Green hydrogen production by solar photocatalysis using Pt-TiO₂ nanosheets with reactive facets

Bin Wang, Daniel H C Wan, Altair T F Cheung, Dennis Y C Leung, Xiao-Ying Lu^*, Michael K H Leung^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

2 Citations (Scopus)

Abstract

Green production of hydrogen is essential for the development of a hydrogen economy. In this study, the photocatalytic water-splitting technology is developed to harness solar energy for production of renewable hydrogen. Pt-TiO₂ nanosheets were fabricated by a facile hydrothermal method, followed by photo-reduction of Pt(acac)₂ on B,F-codoped TiO₂ with reactive facets. The as-prepared photocatalysts were characterised by transmission electron microscopy (TEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX) and UV-vis diffuse reflectance spectroscopy (DRS). The photocatalytic hydrogen production performance was systematically investigated under UV-visible irradiation. The parametric results indicate that the TiO₂ nanosheet structure, Pt loading and photocatalyst concentration have significant impacts on the photocatalytic hydrogen production. The highest hydrogen production rate obtained is 5,086 μmol h^-1g^-1.

Original language	English
Pages (from-to)	75-81
Journal	HKIE Transactions Hong Kong Institution of Engineers
Volume	28
Issue number	2
Online published	30 Jun 2021
DOIs	https://doi.org/10.33430/V28N2THIE-2020-0039
Publication status	Published - 2021

Research Keywords

Hydrogen production
Nanosheets
Photocatalysis
Semiconductors
Titanium dioxide

UN SDGs

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

Access Output

10.33430/V28N2THIE-2020-0039

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{4ed6452509b042d4855ea20ae68086f6,

title = "Green hydrogen production by solar photocatalysis using Pt-TiO2 nanosheets with reactive facets",

abstract = "Green production of hydrogen is essential for the development of a hydrogen economy. In this study, the photocatalytic water-splitting technology is developed to harness solar energy for production of renewable hydrogen. Pt-TiO2 nanosheets were fabricated by a facile hydrothermal method, followed by photo-reduction of Pt(acac)2 on B,F-codoped TiO2 with reactive facets. The as-prepared photocatalysts were characterised by transmission electron microscopy (TEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX) and UV-vis diffuse reflectance spectroscopy (DRS). The photocatalytic hydrogen production performance was systematically investigated under UV-visible irradiation. The parametric results indicate that the TiO2 nanosheet structure, Pt loading and photocatalyst concentration have significant impacts on the photocatalytic hydrogen production. The highest hydrogen production rate obtained is 5,086 μmol h-1g-1.",

keywords = "Hydrogen production, Nanosheets, Photocatalysis, Semiconductors, Titanium dioxide",

author = "Bin Wang and Wan, {Daniel H C} and Cheung, {Altair T F} and Leung, {Dennis Y C} and Xiao-Ying Lu and Leung, {Michael K H}",

year = "2021",

doi = "10.33430/V28N2THIE-2020-0039",

language = "English",

volume = "28",

pages = "75--81",

journal = "HKIE Transactions Hong Kong Institution of Engineers",

issn = "1023-697X",

publisher = "Hong Kong Institution of Engineers",

number = "2",

}

TY - JOUR

T1 - Green hydrogen production by solar photocatalysis using Pt-TiO2 nanosheets with reactive facets

AU - Wang, Bin

AU - Wan, Daniel H C

AU - Cheung, Altair T F

AU - Leung, Dennis Y C

AU - Lu, Xiao-Ying

AU - Leung, Michael K H

PY - 2021

Y1 - 2021

N2 - Green production of hydrogen is essential for the development of a hydrogen economy. In this study, the photocatalytic water-splitting technology is developed to harness solar energy for production of renewable hydrogen. Pt-TiO2 nanosheets were fabricated by a facile hydrothermal method, followed by photo-reduction of Pt(acac)2 on B,F-codoped TiO2 with reactive facets. The as-prepared photocatalysts were characterised by transmission electron microscopy (TEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX) and UV-vis diffuse reflectance spectroscopy (DRS). The photocatalytic hydrogen production performance was systematically investigated under UV-visible irradiation. The parametric results indicate that the TiO2 nanosheet structure, Pt loading and photocatalyst concentration have significant impacts on the photocatalytic hydrogen production. The highest hydrogen production rate obtained is 5,086 μmol h-1g-1.

AB - Green production of hydrogen is essential for the development of a hydrogen economy. In this study, the photocatalytic water-splitting technology is developed to harness solar energy for production of renewable hydrogen. Pt-TiO2 nanosheets were fabricated by a facile hydrothermal method, followed by photo-reduction of Pt(acac)2 on B,F-codoped TiO2 with reactive facets. The as-prepared photocatalysts were characterised by transmission electron microscopy (TEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX) and UV-vis diffuse reflectance spectroscopy (DRS). The photocatalytic hydrogen production performance was systematically investigated under UV-visible irradiation. The parametric results indicate that the TiO2 nanosheet structure, Pt loading and photocatalyst concentration have significant impacts on the photocatalytic hydrogen production. The highest hydrogen production rate obtained is 5,086 μmol h-1g-1.

KW - Hydrogen production

KW - Nanosheets

KW - Photocatalysis

KW - Semiconductors

KW - Titanium dioxide

UR - http://www.scopus.com/inward/record.url?scp=85110494305&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85110494305&origin=recordpage

U2 - 10.33430/V28N2THIE-2020-0039

DO - 10.33430/V28N2THIE-2020-0039

M3 - RGC 21 - Publication in refereed journal

SN - 1023-697X

VL - 28

SP - 75

EP - 81

JO - HKIE Transactions Hong Kong Institution of Engineers

JF - HKIE Transactions Hong Kong Institution of Engineers

IS - 2

ER -