The effect of silver nanoparticles/graphene-coupled TiO2 beads photocatalyst on the photoconversion efficiency of photoelectrochemical hydrogen production

Chun Ren Ke; Jyun Sheng Guo; Yen Hsun Su; Jyh Ming Ting

doi:10.1088/0957-4484/27/43/435405

The effect of silver nanoparticles/graphene-coupled TiO₂ beads photocatalyst on the photoconversion efficiency of photoelectrochemical hydrogen production

Chun Ren Ke, Jyun Sheng Guo, Yen Hsun Su, Jyh Ming Ting

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

20 Citations (Scopus)

Abstract

In this work, a novel configuration of the photoelectrochemical hydrogen production device is demonstrated. It is based on TiO₂ beads as the primary photoanode material with the addition of a heterostructure of silver nanoparticles/graphene. The heterostructure not only caters to a great improvement in light harvesting efficiency (LHE) but also enhances the charge collection efficiency. For LHE, the optimized cell based on TiO₂ beads/Ag/graphene shows a 47% gain as compared to the cell having a photoanode of commercial P25 TiO₂ powders. For the charge collection efficiency, there is a pronounced improvement of an impressive value of 856%. The reason for the improvement in light absorption is attributed to either the light scattering of TiO₂ beads or the surface plasmonic resonance on the Ag nanoparticles/graphene. The photoconversion efficiency (PCE) of the resulting cells is also presented and discussed. The PCE of the TiO₂ beads/Ag/graphene cell is approximately 2.5 times than that of pure P25 cell.

Original language	English
Article number	435405
Journal	Nanotechnology
Volume	27
Issue number	43
DOIs	https://doi.org/10.1088/0957-4484/27/43/435405
Publication status	Published - 2016 Sept 23

All Science Journal Classification (ASJC) codes

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.1088/0957-4484/27/43/435405

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title = "The effect of silver nanoparticles/graphene-coupled TiO2 beads photocatalyst on the photoconversion efficiency of photoelectrochemical hydrogen production",

abstract = "In this work, a novel configuration of the photoelectrochemical hydrogen production device is demonstrated. It is based on TiO2 beads as the primary photoanode material with the addition of a heterostructure of silver nanoparticles/graphene. The heterostructure not only caters to a great improvement in light harvesting efficiency (LHE) but also enhances the charge collection efficiency. For LHE, the optimized cell based on TiO2 beads/Ag/graphene shows a 47% gain as compared to the cell having a photoanode of commercial P25 TiO2 powders. For the charge collection efficiency, there is a pronounced improvement of an impressive value of 856%. The reason for the improvement in light absorption is attributed to either the light scattering of TiO2 beads or the surface plasmonic resonance on the Ag nanoparticles/graphene. The photoconversion efficiency (PCE) of the resulting cells is also presented and discussed. The PCE of the TiO2 beads/Ag/graphene cell is approximately 2.5 times than that of pure P25 cell.",

author = "Ke, {Chun Ren} and Guo, {Jyun Sheng} and Su, {Yen Hsun} and Ting, {Jyh Ming}",

note = "Funding Information: This research was supported by the Ministry of Science and Technology in Taiwan under Grant No.: MOST 104-2221-E- 006-026-MY3, and the Headquarters of University Advancement at National Cheng Kung University, which is sponsored by the Ministry of Education, Taiwan. Publisher Copyright: {\textcopyright} 2016 IOP Publishing Ltd.",

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doi = "10.1088/0957-4484/27/43/435405",

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AU - Ting, Jyh Ming

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PY - 2016/9/23

Y1 - 2016/9/23

N2 - In this work, a novel configuration of the photoelectrochemical hydrogen production device is demonstrated. It is based on TiO2 beads as the primary photoanode material with the addition of a heterostructure of silver nanoparticles/graphene. The heterostructure not only caters to a great improvement in light harvesting efficiency (LHE) but also enhances the charge collection efficiency. For LHE, the optimized cell based on TiO2 beads/Ag/graphene shows a 47% gain as compared to the cell having a photoanode of commercial P25 TiO2 powders. For the charge collection efficiency, there is a pronounced improvement of an impressive value of 856%. The reason for the improvement in light absorption is attributed to either the light scattering of TiO2 beads or the surface plasmonic resonance on the Ag nanoparticles/graphene. The photoconversion efficiency (PCE) of the resulting cells is also presented and discussed. The PCE of the TiO2 beads/Ag/graphene cell is approximately 2.5 times than that of pure P25 cell.

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The effect of silver nanoparticles/graphene-coupled TiO₂ beads photocatalyst on the photoconversion efficiency of photoelectrochemical hydrogen production

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