Photocatalytic splitting of seawater and degradation of methylene blue on CuO/nano TiO 2

A. J. Simamora; T. L. Hsiung; F. C. Chang; T. C. Yang; C. Y. Liao; H. Paul Wang

doi:10.1016/j.ijhydene.2012.04.091

Photocatalytic splitting of seawater and degradation of methylene blue on CuO/nano TiO ₂

A. J. Simamora, T. L. Hsiung, F. C. Chang, T. C. Yang, C. Y. Liao, H. Paul Wang

Department of Environmental Engineering

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

70 Citations (Scopus)

Abstract

The main objective of this study was to prepare effective photocatalysts for splitting of seawater for solar fuel - H ₂ and degradation of seawater organic pollutants such as dyes. To enhance photocatalytic activities, CuO is supported on nano TiO ₂ (CuO/nano TiO ₂). By X-ray absorption near edge structure (XANES) spectroscopy, CuO clusters are found on nano TiO ₂. The 2.5% CuO/nano TiO ₂ has greater activities in photocatalytic splitting of water and seawater than nano TiO ₂ by 9.9 and 7.8 times, respectively. Interestingly, the 2.5% CuO/nano TiO ₂ is also very active for photocatalytic splitting of water and seawater contaminated with dyes such as methylene blue (MB) (10 ppm). Under a 5-h irradiation of the UV-Vis light, about 99% of MB is degraded while 3.1 μmol/h g cat of H ₂ are generated from seawater in the photocatalysis process. Highlights: CuO/nano TiO ₂ can enhance photocatalytic splitting of seawater for H ₂ fuel. Nano TiO ₂ promoted with CuO clusters has enhanced photoactivity. Photocatalytic degradation of dyes in seawater with desired H ₂ yields.

Original language	English
Pages (from-to)	13855-13858
Number of pages	4
Journal	International Journal of Hydrogen Energy
Volume	37
Issue number	18
DOIs	https://doi.org/10.1016/j.ijhydene.2012.04.091
Publication status	Published - 2012 Sept

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

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

Access to Document

10.1016/j.ijhydene.2012.04.091

Cite this

@article{37f9eee6e60a47008d9f19d1b9d8f925,

title = "Photocatalytic splitting of seawater and degradation of methylene blue on CuO/nano TiO 2 ",

abstract = "The main objective of this study was to prepare effective photocatalysts for splitting of seawater for solar fuel - H 2 and degradation of seawater organic pollutants such as dyes. To enhance photocatalytic activities, CuO is supported on nano TiO 2 (CuO/nano TiO 2). By X-ray absorption near edge structure (XANES) spectroscopy, CuO clusters are found on nano TiO 2. The 2.5% CuO/nano TiO 2 has greater activities in photocatalytic splitting of water and seawater than nano TiO 2 by 9.9 and 7.8 times, respectively. Interestingly, the 2.5% CuO/nano TiO 2 is also very active for photocatalytic splitting of water and seawater contaminated with dyes such as methylene blue (MB) (10 ppm). Under a 5-h irradiation of the UV-Vis light, about 99% of MB is degraded while 3.1 μmol/h g cat of H 2 are generated from seawater in the photocatalysis process. Highlights: CuO/nano TiO 2 can enhance photocatalytic splitting of seawater for H 2 fuel. Nano TiO 2 promoted with CuO clusters has enhanced photoactivity. Photocatalytic degradation of dyes in seawater with desired H 2 yields.",

author = "Simamora, {A. J.} and Hsiung, {T. L.} and Chang, {F. C.} and Yang, {T. C.} and Liao, {C. Y.} and Wang, {H. Paul}",

note = "Funding Information: The financial supports of the Taiwan National Science Council, Bureau of energy , and National Synchrotron Radiation Center (NSRRC) are gratefully acknowledged. We thank Y.W. Yang and Jyh-Fu Lee of the NSRRC for their XAFS experimental assistances. Appendix A ",

year = "2012",

month = sep,

doi = "10.1016/j.ijhydene.2012.04.091",

language = "English",

volume = "37",

pages = "13855--13858",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Limited",

number = "18",

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TY - JOUR

T1 - Photocatalytic splitting of seawater and degradation of methylene blue on CuO/nano TiO 2

AU - Simamora, A. J.

AU - Hsiung, T. L.

AU - Chang, F. C.

AU - Yang, T. C.

AU - Liao, C. Y.

AU - Wang, H. Paul

N1 - Funding Information: The financial supports of the Taiwan National Science Council, Bureau of energy , and National Synchrotron Radiation Center (NSRRC) are gratefully acknowledged. We thank Y.W. Yang and Jyh-Fu Lee of the NSRRC for their XAFS experimental assistances. Appendix A

PY - 2012/9

Y1 - 2012/9

N2 - The main objective of this study was to prepare effective photocatalysts for splitting of seawater for solar fuel - H 2 and degradation of seawater organic pollutants such as dyes. To enhance photocatalytic activities, CuO is supported on nano TiO 2 (CuO/nano TiO 2). By X-ray absorption near edge structure (XANES) spectroscopy, CuO clusters are found on nano TiO 2. The 2.5% CuO/nano TiO 2 has greater activities in photocatalytic splitting of water and seawater than nano TiO 2 by 9.9 and 7.8 times, respectively. Interestingly, the 2.5% CuO/nano TiO 2 is also very active for photocatalytic splitting of water and seawater contaminated with dyes such as methylene blue (MB) (10 ppm). Under a 5-h irradiation of the UV-Vis light, about 99% of MB is degraded while 3.1 μmol/h g cat of H 2 are generated from seawater in the photocatalysis process. Highlights: CuO/nano TiO 2 can enhance photocatalytic splitting of seawater for H 2 fuel. Nano TiO 2 promoted with CuO clusters has enhanced photoactivity. Photocatalytic degradation of dyes in seawater with desired H 2 yields.

AB - The main objective of this study was to prepare effective photocatalysts for splitting of seawater for solar fuel - H 2 and degradation of seawater organic pollutants such as dyes. To enhance photocatalytic activities, CuO is supported on nano TiO 2 (CuO/nano TiO 2). By X-ray absorption near edge structure (XANES) spectroscopy, CuO clusters are found on nano TiO 2. The 2.5% CuO/nano TiO 2 has greater activities in photocatalytic splitting of water and seawater than nano TiO 2 by 9.9 and 7.8 times, respectively. Interestingly, the 2.5% CuO/nano TiO 2 is also very active for photocatalytic splitting of water and seawater contaminated with dyes such as methylene blue (MB) (10 ppm). Under a 5-h irradiation of the UV-Vis light, about 99% of MB is degraded while 3.1 μmol/h g cat of H 2 are generated from seawater in the photocatalysis process. Highlights: CuO/nano TiO 2 can enhance photocatalytic splitting of seawater for H 2 fuel. Nano TiO 2 promoted with CuO clusters has enhanced photoactivity. Photocatalytic degradation of dyes in seawater with desired H 2 yields.

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