Microspheroidization treatment of macroporous TiO2 to enhance its recycling and prevent membrane fouling of photocatalysis–membrane system.

Highlights: [•] Preparation of PP-TiO2/CA microspheres with improved photoactivity. [•] The combined PP-TiO2/CA microsphere–membrane system preventing membrane fouling. [•] Recycling of PP-TiO2/CA by free settling method without energy consumption. [•] High permeation flux of 90L/m2 h for the combined microsphere–membrane system. [•] Force analysis revealing the suspending state of the microspheres in dye solution. [Copyright &y& Elsevier]