1
第29卷第8期 2010年8月
中国材料进展 MATERIALS CHINA
特药专栏
Photocatalytic Ceramic Foam Filter:
Vol. 29
No.8
Aug.2010
:Application
Research Progress and Prospect
ZHOUZhonghua，
HUANG Yue
(College of Materials，Xiamen University，Xiamen 361005,China)
Abstract: Photocatalytic ceramic foam filter, the composite of high photoactive TiO, nano materials and three dimen-sional porous ceramic foam materials, has been widely applied in the field of air/water purification, owing to its charac-teristics of high photoactivity, large surface area, large flowing flux and ceramic heat/chemical resistance, recycling probability. Applications have been in the fields of industrial exhaust deodorization, agriculture pesticide degradation u-sing sunlight, sterilization of laboratories and hospitals, high-speed train air purification, and so on.
The application re-
search progress, problem and future prospect of photocatalytic ceramic foam filter are summarized. Key words : photocatalyst; ceramic foam filter; application; air/water purification
CLC number: TQ051.8*5; TQ174.75*8
Document code: A
Article ID: 1674 3962(2010)08 0027 03
光催化泡沫陶瓷过滤器的应用研究现状和展望
周忠华，黄
悦
（厦门大学材料学院，厦门
361005）
携
要：高活性的光催化二氧化钛纳米材料与高气孔率的三维多孔泡沫陶瓷材料复合，得到的光能化泡沫陶瓷过滤器，具备
高活性、大表面积、大通量、以及陶瓷的耐高温、耐化学腐蚀、循环适用性，在大气/水净化领域率先得到了广泛应用。在工业领域的废气脱臭处理、在农业领域的农药度水太阳光降解、在医疗卫生领域的实验室医院空气杀菌处理、在交通领域的高
速列车空气净化等，已经展开应用。综述了国内外光催化泡沫陶瓷过滤器的应用研究现状、间题及其发展趋势。关键词：光催化；泡沫陶瓷过滤器；应用研究；大气/水净化
Introduction
TiO, photocatalyst, due to its low price, high photoactivity
and safety to human being and environment guaranteed by histo-ry, has been widely applied in the fields of air/water purifica-tion[t-5]., Among varieties of TiO, photocatalytic materials, photocatalytic ceramic foam filter, a composite of TiO, and ce-ramic foam by utilizing the high active performance of TiO, and the high resistance and large surface area of ceramic foam, has been commercialized recently and is getting more importance for industrial applications.
2
Applications inindustrialdeodorization Experimental animal raising facility usually exhausts 24
hours everyday, and the odor complaint from residents is the main common problem for similar facilities. The exhaust contains several 10 -* degrees of ammonia, acetaldehyde, trimethylamine
Received date : 2010 07 29
Foundation item; China-Japanese Cooperation Program (XDHr2008296A );
Xiamen University, Introduction of Qualified Dersonnel Items(0044 ~ x12101 )
Biography: Zhou zhonghua, Professor
and organic acid such as n-butyric acid, etc. The condition is proper for photocatalytic deodorization treatment because the odor contaminations are low level, while the exhaust is at room tem-perature. Experimental animal raising facility exhaust deodoriza-tion is one of the success industrial applications for photocatalytic ceramic foam filter. One of the authors (Zhou) experienced the engineering of deodorization of 6 000 m'/h experimental animal exhaust in Tokyo in 2005. The odor concentration was 130 be-fore treatment and 32 after treatment, and deodorization effect reached about 75%
Kitchen exhaust of shopping mall is usually deodorized by ac-tive carbon filter, and photoeatalytie ceramic foam filter has al-ready been applied in this field recently. Except oil substances, main odor contaminations of kitchen exhaust are several 10- de-grees of ammonia and acetaldehyde, etc. Kitchen exhaust is nec-essary to be deoilingly trealed before deodorization treatment by
One of the examples of 4 000
photocatalytic ceramic foam filter.
m'/h shopping mall kitchen exhaust treatment in Tokyo in 2006 showed that the odor concentration was 3 200 before treatment, remained to be 3 200 after deoiling treatment, decreased to 790 after first pass photocatalytic deodorization and further decreased to 500 after second pass photocatalytic deodorization. This is an-other success example of photocatalytic ceramic foam filter for in-dustrial use, and new-built shopping malls become to adopt photo-catalytic deodorization system recentiy in Japan.
Rubbish odor of rubbish pressing and transiting facilities in