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ZnO based heterojun...
ZnO based heterojunctions and their application in environmental photocatalysis
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- Gu, Xiuquan (författare)
- Uppsala universitet,Institutionen för kemi - Ångström,China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China
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- Li, Cuiyan (författare)
- Uppsala universitet,Institutionen för kemi - Ångström
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- Yuan, Shuai (författare)
- Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China
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- Ma, Mingguo (författare)
- Beijing Forestry Univ, Coll Mat Sci & Technol, Beijing 100083, Peoples R China
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- Qiang, Yinghuai (författare)
- China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China
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- Zhu, Jie-Fang (författare)
- Uppsala universitet,Strukturkemi
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(creator_code:org_t)
- 2016-08-30
- 2016
- Engelska.
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Ingår i: Nanotechnology. - : IOP Publishing. - 0957-4484 .- 1361-6528. ; 27:40
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- As an alternative to TiO2 photocatalysts, ZnO exhibits a large potential for photocatalytic (PC) applications in environmental treatments, such as degradation of wastewater, sterilization of drinking water, and air cleaning. However, the efficiency achieved with ZnO to date is far from that expected for commercialization, due to rapid charge recombination, photo-corrosion as well as poor utilization of solar energy. Fortunately, in recent years, a great number of breakthroughs have been achieved in PC performance (including activity and stability) of micro-/ nano-structured ZnO by forming heterojunctions (HJs) with metal nanoparticles (NPs), carbon nanostructures and other semiconductors. In most cases, the improvement of PC performance was ascribed to the better charge separation at the interfaces between ZnO and the other components. Sometimes, the formation of hybrids is also in favor of visible light harvesting. This review summarizes recent advances in the fields of environmental photocatalysis by ZnO based HJs, and especially emphasizes their abilities in degradation of organic pollutants or harmful substances in water. We aim to reveal the mechanism underlying the enhanced PC performance by constructing HJs, and extend the potential of ZnO HJ photocatalysts for future trends, and practical, large-scale applications in environment-related fields.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- ZnO
- heterojunction
- photocatalysis
- nanostructure
- environmental treatment
Publikations- och innehållstyp
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- for (ämneskategori)
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