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净化空气功能性内墙涂料的甲醛分解

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Formaldehyde decomposition of air purification functional interior wall paint
A novel nano-TiO2-xNx composite was used as photocatalyst and added to the interior wall paint. The average diameter of nano-TiO2-xNx was about 20 nm. The majority crystal component of the sample was anatase and its optical absorption edge was shifted from 387 nm to 520 nm significantly. Nano-composite paint containing different dosage of nano-TiO2-xNx was investigated to study the properties of formaldehyde decomposition in the air. Testing results show that the formaldehyde decomposition ratio of that nano-paint can almost reach above 80%, especially for that of the paint containing 3% (w/w) nano-TiO2-xNx, which exceeded 90%. The primary investigation on the reaction kinetics of photocatalytic formaldehyde decomposition indicated that the experiment data well fit the model of first-order reaction kinetics.

nano-TiO2-xNx, photocatalytic decomposition, air purification, formaldehyde, reaction kinetics.

王晓强、张剑平、朱惟德、施利毅

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Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China

School of Materials Science and Engineering, Shanghai University, Shanghai 201800, P. R. China

Nano-Science & Technology Research Center, Shanghai University, Shanghai 200444, P. R. China

nano-TiO2-xNx, photocatalytic decomposition, air purification, formaldehyde, reaction kinetics.

Foundation of National Key Technologies R&D Program-Shanghai World Expo Special Project

04DZ05803

2007

上海大学学报(英文版)
上海大学

上海大学学报(英文版)

影响因子：0.196
ISSN：1007-6417
年,卷(期)：2007.11(5)
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