Making Marble Powder Waste Profitable by Using Nano-TiO2Surface Modification for Air Quality Improvement Applications

Yaxiong Ji, Xing Rong, Hong Zhong, Yuanhao Wang, Shifeng Wang, Lin Lu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)


We report a brand new recycling route of waste marble powder, by means of surface modification with homemade nano-TiO2particles to produce low cost coating materials for the application in air quality improvement. The as-prepared nano-TiO2in 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-TiO2clad 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.
Original languageEnglish
Article number6501793
JournalJournal of Nanomaterials
Publication statusPublished - 1 Jan 2017

ASJC Scopus subject areas

  • Materials Science(all)

Cite this