Enhanced hydrogen production from aqueous methanol solution using TiO<sub>2</sub>/Cu as photocatalysts

doi:10.1007/s11705-014-1417-y

Front. Chem. Sci. Eng.

2014, Vol. 8

Issue (2) : 197-202 https://doi.org/10.1007/s11705-014-1417-y

COMMUNICATION ARTICLE

Enhanced hydrogen production from aqueous methanol solution using TiO₂/Cu as photocatalysts

Paramasivan GOMATHISANKAR^1,^*(

),Tomoko NODA¹,Hideyuki KATSUMATA¹,Tohru SUZUKI²,Satoshi KANECO^1,^*(

)

1. Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Mie 514–8507, Japan
2. Environmental Preservation Center, Mie University, Mie 514-8507, Japan

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Abstract

The photocatalytic hydrogen production from aqueous methanol solution using titanium dioxide (TiO₂) was investigated in the addition of metal particles including copper, lead, tin, and zinc. The results show that only the addition of copper particles enhances the hydrogen production. The copper usage and reaction temperature were further optimized for TiO₂/Cu photocatalyts. Under the optimal conditions, the hydrogen production using TiO₂/Cu as photocatalysts is approximately 68 times higher than that obtained with only TiO₂.

Keywords photocatalytic hydrogen generation methanol copper particles TiO₂ metal-semiconductor interface

Corresponding Author(s): Paramasivan GOMATHISANKAR

Issue Date: 22 May 2014

Cite this article:

Paramasivan GOMATHISANKAR,Tomoko NODA,Hideyuki KATSUMATA, et al. Enhanced hydrogen production from aqueous methanol solution using TiO₂/Cu as photocatalysts[J]. Front. Chem. Sci. Eng., 2014, 8(2): 197-202.

URL:

https://academic.hep.com.cn/fcse/EN/10.1007/s11705-014-1417-y
https://academic.hep.com.cn/fcse/EN/Y2014/V8/I2/197

Fig.1 Effect of methanol concentration on the photocatalaytic hydrogen generation from aqueous methanol using TiO₂. Reaction conditions: TiO₂, 20 mg; time, 3 h; pH, 6.5; temperature, 50°C

Fig.2 Effect of catalyst loading on the photocatalaytic hydrogen generation from aqueous methanol using TiO₂. Reaction conditions: methanol, 10 v-%; time, 3 h; pH, 6.5; temperature, 50°C

Fig.3 Effect of pH on the photocatalaytic hydrogen generation from aqueous methanol using TiO₂. Reaction conditions: TiO₂, 20 mg; methanol, 10 v-%; time, 3 h; temperature, 50°C

Fig.4 Effect of addition of metal on the photocatalaytic hydrogen generation from aqueous methanol using TiO₂. Reaction conditions: TiO₂, 20 mg; metal, 20 mg; methanol, 10 v-%; time, 3 h; pH, 6.5; temperature, 50°C

Fig.5 Effect of Cu usage on the photocatalaytic hydrogen generation from aqueous methanol using TiO₂ with Cu particles. Reaction conditions: TiO₂, 20 mg; methanol, 10 vol-%; time, 3 h; pH, 6.5; temperature, 50°C

Fig.6 Effect of temperature on the photocatalaytic hydrogen generation from aqueous methanol using TiO₂ with Cu particles. Reaction conditions: TiO₂, 20 mg; Cu particles, 10 mg; methanol, 10 v-%; time, 3 h; pH, 6.5

Fig.7 Schematic diagram for photocatalytic hydrogen generation

Tab.1 Properties of metals used in the present work

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