3 years ago

Assessment of Bamboo Charcoal/Nano-TiO 2 (BC/TiO 2 ) Composite Material and Its Application in Photocatalytic Coating

Piqi Zhao, Honghua Liu, Xiangyang Guo, Han Wang, Shoude Wang, Lingchao Lu, Xin Cheng


The bamboo charcoal/nano-TiO2 (BC/TiO2) composite material is designed and prepared for further improving photocatalytic property of TiO2. Assessment of BC/TiO2 composite material and its application in photocatalytic coating are investigated by nitrogen absorption test, scanning electron microscopy-energy disperse spectroscopy (SEM-EDS) characterization and photocatalytic and mechanical properties analysis. The results show that optimal ratio of TiO2 to BC is 0.03. Rhodamine B (RhB) degradation ratio can reach 62.9% under 4 h UV light irradiation, which is 43.7% higher than pure TiO2 sample. The specific surface area (SBET) and the total average pore size ( \(\overline {D}\) ) of BC/TiO2 can reach 388.33 m2/g and 3.71 nm, respectively. Moreover, the photocatalytic coatings prepared mainly by BC/TiO2 and polyacrylic emulsion (PAE), not only show satisfactory mechanical properties, but also have excellent photocatalytic property. When the addition of BC/TiO2 composite materials is 6%, the photocatalytic property of coating is optimal, RhB degradation ratio can reach 83.7% under 8 h UV light irradiation. Also the adhesion, pencil hardness and impact resistance reach 2 level, 2H and 44 kg cm, respectively.

Publisher URL: https://link.springer.com/article/10.1007/s10904-018-01054-3

DOI: 10.1007/s10904-018-01054-3

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