Black composites photocatalyst coatings of K2Ti6O13-TiO2/TiC with nano-sheet flower-like structure by heat treatment in molten salt

作者：Guan, Sujun; Hao, Liang; Yoshida, Hiroyuki; Pan, Fusheng; Asanuma, Hiroshi; Lu, Yun^*

来源：Materials Letters, 2017, 188: 55-58.

DOI：10.1016/j.matlet.2016.10.092

• 6-Potassium titanate
• TiO2
• Surfaces
• Adsorption
• Molten salt
• Thick films

Black photocatalyst coatings of 6-potassium titanate (K2Ti6O13) and anatase TiO2 were formed on the surface of TiC coatings by low-temperature heat treatment in molten salt of KNO3 at 673 K for 3 h. The surface of the composite coatings of K2Ti6O13-TiO2/TiC shows the nano-sheet flower-like structure, which could substantially increase the accessible surface area, compared with that of composite coatings of K2Ti6O13/Ti by the same treatment for Ti coatings. The composite coatings of K2Ti6O13-TiO2/TiC obtain high and stable adsorption, and still show photocatalytic activity. The results show that the low-temperature treatment in molten salt is a simple and effective approach to fabricate catalyst with nano-sheet K2Ti6O13.

• 出版日期2017-2-1
• 单位天津科技大学; 重庆大学