Hierarchical ZnO nanostructured membrane for multifunctional environmental applications
To counter the global water crisis such as water resources scarcity and water quality deterioration, membrane filtration has been widely used as a promising technology. Recently, nano-materials and its structured membranes demonstrated multifunctional water purification capability in terms of decont...
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sg-ntu-dr.10356-961592020-03-07T11:43:37Z Hierarchical ZnO nanostructured membrane for multifunctional environmental applications Bai, Hongwei Liu, Zhaoyang Sun, Darren Delai School of Civil and Environmental Engineering To counter the global water crisis such as water resources scarcity and water quality deterioration, membrane filtration has been widely used as a promising technology. Recently, nano-materials and its structured membranes demonstrated multifunctional water purification capability in terms of decontamination and disinfection. Here, hierarchical nitrogen (N)-doped “nut-like” ZnO nanostructured material was hydrothermally synthesized at large scale. This hierarchical N-doped “nut-like” ZnO nanostructured material was well characterized and successfully assembled on a piece of polymer membrane surface to create a multifunctional membrane. This newly developed membrane demonstrated high pollutants removal ability via rejection and photodegradation, and strong antibacterial growth ability under visible light irradiation. At the same time, this novel membrane holds the potential to produce clean water at a constant high flux. The experimental results indicated that the hierarchical N-doped ZnO “nut-like” nanostructured material enhanced the photocatalytic activity in a comparison to commercial ZnO powder. This is caused by enlarging the specific surface area and enhancing the light utilization rate. It is reasonable to believe this hierarchical N-doped “nut-like” ZnO nanostructured membrane would benefit the water purification field. 2013-06-27T06:50:43Z 2019-12-06T19:26:26Z 2013-06-27T06:50:43Z 2019-12-06T19:26:26Z 2012 2012 Journal Article Bai, H., Liu, Z., & Sun, D. D. (2012). Hierarchical ZnO nanostructured membrane for multifunctional environmental applications. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 410, 11-17. 0927-7757 https://hdl.handle.net/10356/96159 http://hdl.handle.net/10220/10815 10.1016/j.colsurfa.2012.05.044 en Colloids and surfaces A : physicochemical and engineering aspects © 2012 Elsevier B.V. |
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To counter the global water crisis such as water resources scarcity and water quality deterioration, membrane filtration has been widely used as a promising technology. Recently, nano-materials and its structured membranes demonstrated multifunctional water purification capability in terms of decontamination and disinfection. Here, hierarchical nitrogen (N)-doped “nut-like” ZnO nanostructured material was hydrothermally synthesized at large scale. This hierarchical N-doped “nut-like” ZnO nanostructured material was well characterized and successfully assembled on a piece of polymer membrane surface to create a multifunctional membrane. This newly developed membrane demonstrated high pollutants removal ability via rejection and photodegradation, and strong antibacterial growth ability under visible light irradiation. At the same time, this novel membrane holds the potential to produce clean water at a constant high flux. The experimental results indicated that the hierarchical N-doped ZnO “nut-like” nanostructured material enhanced the photocatalytic activity in a comparison to commercial ZnO powder. This is caused by enlarging the specific surface area and enhancing the light utilization rate. It is reasonable to believe this hierarchical N-doped “nut-like” ZnO nanostructured membrane would benefit the water purification field. |
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School of Civil and Environmental Engineering |
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School of Civil and Environmental Engineering Bai, Hongwei Liu, Zhaoyang Sun, Darren Delai |
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Bai, Hongwei Liu, Zhaoyang Sun, Darren Delai |
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Bai, Hongwei Liu, Zhaoyang Sun, Darren Delai Hierarchical ZnO nanostructured membrane for multifunctional environmental applications |
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Bai, Hongwei |
title |
Hierarchical ZnO nanostructured membrane for multifunctional environmental applications |
title_short |
Hierarchical ZnO nanostructured membrane for multifunctional environmental applications |
title_full |
Hierarchical ZnO nanostructured membrane for multifunctional environmental applications |
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Hierarchical ZnO nanostructured membrane for multifunctional environmental applications |
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Hierarchical ZnO nanostructured membrane for multifunctional environmental applications |
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hierarchical zno nanostructured membrane for multifunctional environmental applications |
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2013 |
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https://hdl.handle.net/10356/96159 http://hdl.handle.net/10220/10815 |
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