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Research Progress on Immobilized ZnO Nanostructures for Environmental Photocatalysis(PDF)

MATERIALS CHINA[ISSN:1674-3962/CN:61-1473/TG]

Issue:
2019年第04期
Page:
375-383
Research Field:
Publishing date:

Info

Title:
Research Progress on Immobilized ZnO Nanostructures for Environmental Photocatalysis
Author(s):
LIU Yangsi12 XI Xiaoli12
(1. College of Material Science and Engineering, Key Laboratory of Advanced Functional Materials ofMinistry of Education, Beijing University of Technology, Beijing 100124, China)(2. National Engineering Laboratory for Industrial BigData Application Technology,Beijing University of Technology, Beijing 100124, China)
Keywords:
zinc oxide immobilization nanostructures environment photocatalysis
CLC:

PACS:
-
DOI:
10.7502/j.issn.1674-3962.2019.04.07
DocumentCode:

Abstract:
Photocatalysis is regarded as one of the most promising strategies to solve the current environmental pollution. Zinc oxide (ZnO), as an important ntype wide band gap semiconductor, not only has excellent photoelectric properties, but also contains rich nanostructures, which has attracted wide attention in the field of photocatalysis. Usually, ZnO nanomaterials used as photocatalysts are presented in the form of powders, which need to be recovered by centrifugation and filtration after use, and is liable to cause the secondary pollution. The above troubles can be avoided by fixing ZnO nanostructures on movable substrates to form immobilized photocatalysts. From the perspective of basic “structural unit” dimension, the immobilized ZnO nanostructures for environmental photocatalysis, including zero, one, two and threedimensional structures, are reviewed. The zerodimensional structure is mainly fixed nanoparticles. The onedimensional and twodimensional structures are mainly nanorods and nanosheet arrays, respectively. The threedimensional structures are composed of lowdimensional morphologies, and most of them form complex hierarchical structures. Finally, the problems and challenges in the practical application of immobilized ZnO nanostructures in environmental photocatalysis are prospected.

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Last Update: 2019-04-01