[an error occurred while processing this directive]
���¿��ټ��� �߼�����
   ��ҳ  �ڿ�����  ��ί��  Ͷ��ָ��  �ڿ�����  ��������  �� �� ��  ��ϵ����
�������պ����ѧѧ�� 2007, Vol. 33 Issue (05) :608-612    DOI:
���� ����Ŀ¼ | ����Ŀ¼ | ������� | �߼����� << | >>
�����, �ܴ���*
�������պ����ѧ ���Ͽ�ѧ�빤��ѧԺ, ���� 100083
Plasma spraying of the nano-structured TiO2 coatings and its photocatalytic properties
Yu Qinghe, Zhou Chungen*
School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Download: PDF (463KB)   HTML 1KB   Export: BibTeX or EndNote (RIS)      Supporting Info
ժҪ ԭʼ��Ϳ��ĩ����������﷨����,���õ�������Ϳ��������ͨ�ز�Ƭ���Ʊ�������TiO2Ϳ��,����Ϳ����300�ݡ�,400�ݡ�,500�ݡ�����ȴ���.����X��������(XRD)������TiO2Ϳ���������ṹ����;��ɨ�������΢��(SEM)��͸�������΢��(TEM)�۲�Ϳ���΢����ò;��ѹ����������Ϳ��Ŀ�϶��.�������,��Ϳ�����ѿ���TiO2������Լ��30%~50%,����10~30��nm,��϶��С��6%,�ȴ����Ϳ�������,��϶�ʽ���.��Ϳ����Ϊ400��A��δ�����ȴ����TiO2Ϳ�������ѹ�߻�Ч��.
Email Alert
�ؼ����� ��������Ϳ   ����TiO2   ��߻�   �ȴ���     
Abstract�� The starting nano-TiO2 feedstock was agglomerated by spray-drying process. Nano-TiO2 coatings on transparent glasses were prepared by plasma spraying. The coating proceeded heat treatment at 300��,400�� and 500�� respectively. The phase structure and the morphology of the ��TiO2 ��coatings were characterized by X-ray diffraction(XRD), scanning electron microscope(SEM) and transmission electron microscope(TEM). The porosity of the ��TiO2�� coatings was tested by mercury porosimetry method. The result shows that the content of anatase TiO2 in the sprayed coatings is approximate to 30%~50%, and its grain size is about 10~30��nm.The porosity of the TiO2 coatings is less than 6%,but has a great influence to the photocatalytic properties. After heat treatment at 300��,400�� and 500��, the coating becomes denser and has a lower porosity, which leads to a decrease in photocatalytic properties. Sprayed nano-TiO2 coating obtained without heat treatment at the spraying current of 400��A has the best photocatalytic property.
Keywords�� plasma spraying   nano-TiO2   photocatalytic   heat treatment     
Received 2006-06-12;


About author: �����(1981-),��,ɽ����ˮ��,˶ʿ��,yuqinghekevin@mse.buaa.edu.cn.
�����, �ܴ���.��������Ϳ���ת�TiO2��Ϳ�㼰���߻�����[J]  �������պ����ѧѧ��, 2007,V33(05): 608-612
Yu Qinghe, Zhou Chungen.Plasma spraying of the nano-structured TiO2 coatings and its photocatalytic properties[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2007,V33(05): 608-612
http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2007/V33/I05/608
Copyright 2010 by �������պ����ѧѧ��