Paper Title:
Preparation and Properties of Heat Durable N:TiO2 Antibacterial Nano-Ceramics
  Abstract

As a new type of environmental pollutant reduction technology, semiconductor nano-TiO2 photocatalytic technology has attracted widely attention in recent years. In order to overcome the disadvantage of pure TiO2 photocatalyst in lower utilization of solar energy and heat durability, the sol-gel method followed by co-precipitation method was employed to synthesize ZnO packed N:TiO2 nano-powders, and EDS, XRD, SEM, UV-VIS analysis as well as detection of degradation rate of methyl orange were used to characterize the composition, phase, micro-morphology and the photocatalytic properties of the nano-powders. The results showed that the excitation band of the composite powders extended from the UV region to the visible light zone, indicating a remarkable improvement of the photocatalytic activities of TiO2 composite powders under both visible light and UV irradiation. After calcined at 950°C, the composite powders still remained mixed crystal structures of anatase and rutile phases with the diameter of the composite powder being about 60nm. After coated with ZnO, the heat durability of the N-doped nano-TiO2 composite powders was significantly improved 250°C.

  Info
Periodical
Edited by
Hui Wu, Xiao-Qian Qian, Chong-zhi Li and Fei Li
Pages
453-457
DOI
10.4028/www.scientific.net/KEM.477.453
Citation
G. L. Zhang, G. Q. Qin, J. H. Yang, "Preparation and Properties of Heat Durable N:TiO2 Antibacterial Nano-Ceramics", Key Engineering Materials, Vol. 477, pp. 453-457, 2011
Online since
April 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Le Fu Mei, Kai Ming Liang, Shu Ming Wang, Feng Zhou
Abstract:ZrO2-TiO2 thin films, which were heat-treated with an applied electric field, were prepared by sol-gel method. The phase transformation...
2316
Authors: Rong Jie Gao, Ping Wei Wu
Abstract:Titania powders consisting of well-crystallized nanosize anatase phase were prepared by the hydrothermal synthesis from Ti(OC4H9)4 at T=568K...
465
Authors: Mohammad Reza Golobostanfard, Reza Ebrahimifard, Hossein Abdizadeh
Abstract:TiO2/ZnO Nanocomposite powders with different Zn/Ti ratios were synthesized via sol-gel method. The as prepared and calcined Titania...
993
Authors: Tao Yu, Xin Tan, Peng Chen, Hong Mei Wang
Chapter 8: Energy Materials, Engineering Materials and Processing Technologies
Abstract:Lanthanum-doped anatase TiO2 coatings, which are composed of assemble crystalline of 50 nm diameter particles, when the percentage...
1651
Authors: Lin Li, Sheng Qi Xi, Yang Nan Xing, Fei Hu Shang
Abstract:Titania powder was prepared by a sol-gel method and heat-treatment (HT). The morphology and structure of the titania powder were...
849