Patent ID: 7931812

Claim:
A method of photocatalytically decomposing organic pollutants, comprising the steps of: (a) mixing a solution containing organic pollutants and a plurality of TiO 2 -containing, macro-sized nanostructures to form a mixture, wherein the plurality of TiO 2 -containing, macro-sized nanostructures is provided in the form of a membrane or a sheet; (b) exposing the mixture to UV irradiation to decompose the organic pollutants; (c) soaking the membrane or sheet in a volume of an Mg(NO 3 ) 2 solution at room temperature (RT) for a first period of time; (d) drying the membrane or sheet at RT; and (e) heating the dried membrane or sheet in air at a temperature in the range of about 25 to 300° C. for a second period of time.