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Making Marble Powder Waste Profitable By Using Nano-Tio2 Surface Modification For Air Quality Improvement Applications, Yaxiong Ji, Xing Rong, Hong Zhong, Yuanhao Wang, Shifeng Wang, Lin Lu
Making Marble Powder Waste Profitable By Using Nano-Tio2 Surface Modification For Air Quality Improvement Applications, Yaxiong Ji, Xing Rong, Hong Zhong, Yuanhao Wang, Shifeng Wang, Lin Lu
Faculty of Science & Technology (THEi)
We report a brand new recycling route of waste marble powder, by means of surface modification with homemade nano-TiO2 particles to produce low cost coating materials for the application in air quality improvement. The as-prepared nano-TiO2 in anatase phase exhibits excellent photocatalytic characteristic, reflected by the high degradation rate of over 95% of methylene blue within 6 hours of UV irradiation. The prepared coating consisting of nano-TiO2 clad marble powder was tested by monitoring the decomposition rate of formaldehyde gas. A high degradation efficiency of about 95% within 9 hours of illumination is achieved, demonstrating a promising potential for removing …