Making marble powder waste profitable by using Nano-TiO2 surface modification for air quality improvement applications
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 the harmful and toxic organic pollutants in air while applying this coating in buildings both interiorly and exteriorly.
Journal of Nanomaterials
Ji, Y.,Rong, X.,Zhong, H.,Wang, Y.,Wang, S.,& Lu, L. (2017). Making marble powder waste profitable by using Nano-TiO2 surface modification for air quality improvement applications. Journal of Nanomaterials, 2017, 1-6. http://dx.doi.org/10.1155/2017/6501793