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汪杰,聂龙辉,余家国.Pd/TiO2/棉花纤维复合催化材料的制备与性能研究[J].稀有金属材料与工程(英文),2019,48(1):341~347.[Wang Jie,Nie Longhui and Yu Jiaguo.Fabrication of Pd/TiO2/Cotton Fiber Composite Catalytic materials and study of its catalytic performance[J].Rare Metal Materials and Engineering,2019,48(1):341~347.]
Fabrication of Pd/TiO2/Cotton Fiber Composite Catalytic materials and study of its catalytic performance
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Received:May 28, 2017  Revised:August 05, 2017
DOI:
Key words: heterogeneous catalysis  formaldehyde oxidation  Pd/TiO2/cotton fiber
Foundation item:国家自然科学基金资助(项目号51572074);大学生创新创业项目(项目号201610500021)
Author NameAffiliation
Wang Jie,Nie Longhui and Yu Jiaguo  
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Abstract:
      Cotton fibers were firstly treated by nano TiO2 coating via a dip-coating method, and then Pd nanoparticles (NPs) were deposited onto the surface of TiO2/cotton fiber (TC) to acquire the Pd/TiO2/cotton fiber composite (PTC) catalyst by a combined impregnation and NaBH4-reduction method. The obtained PTC sample was used for room-temperature catalytic oxidation of formaldehyde (HCHO) and the influence of Pd content on catalytic activity was investigated. The results reveal that the air resistance of PTC catalyst is much lower than that of the powder-like sample, which is of vital importance for its actual application, and HCHO can be catalytically decomposed into CO2 and H2O over PTC. The catalytic activity of PTC increases with increasing of Pd content in the range of 0.25-1.0 wt%. Owing to the merits of low air resistance, light mass, flexible properties, good efficiency of the PTC catalyst, it can be a good candidate in actual indoor air purification and related catalytic processes.