Preparation and Photocatalytic Property of Titanium(Ⅳ) Dopped Zinc Oxide Nanofiber Materials with Multi-wall Structure

doi:10.11944/j.issn.1000-0518.2015.10.150021

Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (10): 1170-1176.DOI: 10.11944/j.issn.1000-0518.2015.10.150021

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Preparation and Photocatalytic Property of Titanium(Ⅳ) Dopped Zinc Oxide Nanofiber Materials with Multi-wall Structure

SU Bitao,SHAO Kerang,LI Jianjiao,XIN Junlian,LEI Ziqiang

Key Laboratory of Eco-Environment-Related Polymer Materials,Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province,College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou 730070,China

Received:2015-01-19 Accepted:2015-05-21 Published:2015-10-10 Online:2015-10-10
Contact: SU Bitao
Supported by:
Supported by Scientific and Technical Plan Project of Gansu Province(No.1204GKCA006), National Natural Science Foundation of China(No.21174114), Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China(No.IRT1177), Natural Science Foundation of Gansu Province(No.1010RJZA024), Scientific and Technical Innovation Project of Northwest Normal University(No.nwnu-kjcxgc-03-63)

Abstract

Abstract:

Ti⁴⁺/ZnO nanofiber materials with multi-wall structures were prepared by the template-assisted two-step method and characterized by thermogravimetric analysis(TG), X-ray diffraction(XRD) and scanning electron microscopy(SEM) techniques. The effect of Ti⁴⁺ doping amount(0.000~0.200 at.%) on the photocatalytic property of ZnO nanofiber materials was studied by the model degradation reaction of methylene blue(MB). The results show that Ti⁴⁺/ZnO nanofiber materials with multi-wall structures are successfully prepared via the templated-assisted two-step method, doping Ti⁴⁺ can greatly change the nano-structure of the Ti⁴⁺/ZnO fiber materials, and the photocatalytic activity of Ti⁴⁺/ZnO nanofiber materials are higher than that of ZnO. The improved photocatalytic activity of Ti⁴⁺/ZnO multi-wall nanofibers can be mainly ascribed to the formation of the active site —O^2--Ti⁴⁺-O^2--Zn²⁺— and the efficient migration of the photogenerated charges e^--h⁺ from particle to particle in Ti⁴⁺/ZnO.

Key words: titanium(Ⅳ) dopping, zinc oxide, nano-structured fiber material, template-assisted two-step method, characterization, photocatalytic property

SU Bitao,SHAO Kerang,LI Jianjiao,XIN Junlian,LEI Ziqiang. Preparation and Photocatalytic Property of Titanium(Ⅳ) Dopped Zinc Oxide Nanofiber Materials with Multi-wall Structure[J]. Chinese Journal of Applied Chemistry, 2015, 32(10): 1170-1176.

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Preparation and Photocatalytic Property of Titanium(Ⅳ) Dopped Zinc Oxide Nanofiber Materials with Multi-wall Structure

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