【摘 要】
：
The residual formaldehyde (HCHO) in fabric was degraded using photo-catalysis assisted by the compound catalyst of nano-TiO2 and nano-ZnO. The effects of severa
【机 构】
：
College of Materials Science & Engineering
【出 处】
：
武汉理工大学学报（材料科学版）（英文版）
【基金项目】
：
Sichuan Province,the Research of Photo Purification to Environment with Nano TiO2
论文部分内容阅读
The residual formaldehyde (HCHO) in fabric was degraded using photo-catalysis assisted by the compound catalyst of nano-TiO2 and nano-ZnO. The effects of several factors on the degradation,such as the composing of catalyst, irradiation time, pH value and the H2CHO concentration of the immersed solution were investigated. Results showed that H2CHO of the immersed solution had degraded 93% after 5 h irradiation, and the degradation ratio of formaldehyde could be improved and the aging of the fabric can be avoided with the addition of ZnO nanoparticles and pH value of the immersed-fibric solution. The fabric with residual formaldehyde about 1 800 μg/g can be efficiently treated to satisfy the China National Standard(GB/2912.1-1998) with the photo-catalytic degradation.
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