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Highly Active Photocatalyst of Cu2O/TiO2 Octahedron for Hydrogen Generation.

ABSTRACT: Heterojunction catalysts are attracting attention in the field of photocatalytic hydrogen generation for their effective light utilization and charge separation personalities. In this work, we report a simple and low-cost two-step solvothermal method for synthesizing Cu2O/TiO2 heterojunction catalysts with an octahedral morphology and a mean particle size of about 30 nm. It is found that the introduction of Cu2O astonishingly enhances the photocatalytic performance of TiO2. Under the condition of methanol acting as a sacrificial agent, the heterojunction with 0.19% Cu species shows an optimal hydrogen generation rate of 24.83 mmol g-1 h-1, which is nearly 3 orders of magnitude higher than that of the pristine TiO2 catalyst.

SUBMITTER: Li G

PROVIDER: S-EPMC6649128 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Highly Active Photocatalyst of Cu2O/TiO2 Octahedron for Hydrogen Generation.

Li Guojing G Huang Jiquan J Chen Jian J Deng Zhonghua Z Huang Qiufeng Q Liu Zhuguang Z Guo Wang W Cao Rong R

ACS omega 20190214 2

Heterojunction catalysts are attracting attention in the field of photocatalytic hydrogen generation for their effective light utilization and charge separation personalities. In this work, we report a simple and low-cost two-step solvothermal method for synthesizing Cu2O/TiO2 heterojunction catalysts with an octahedral morphology and a mean particle size of about 30 nm. It is found that the introduction of Cu2O astonishingly enhances the photocatalytic performan ...[more]

PMID: 31459554

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