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

環境工程學系

研究成果: Article › 同行評審

83 引文斯高帕斯（Scopus）

摘要

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.

原文	English
頁（從 - 到）	13855-13858
頁數	4
期刊	International Journal of Hydrogen Energy
卷	37
發行號	18
DOIs	https://doi.org/10.1016/j.ijhydene.2012.04.091
出版狀態	Published - 2012 9月

All Science Journal Classification (ASJC) codes

可再生能源、永續發展與環境
燃料技術
凝聚態物理學
能源工程與電力技術

UN SDG

此研究成果有助於以下永續發展目標

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10.1016/j.ijhydene.2012.04.091

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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",

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

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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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