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Nowadays, indoor air quality remains a big challenge to human health protection. Human exposure to indoor air pollutants, even a few ppm, will elevate potential health risks. Therefore, great efforts have conducted to satisfy the more and more strict environmental regulations. Presently, using air purifiers is first available solution to improve indoor air quality. Traditional air purifiers often use sorption materials to adsorb gases or odors. These purifiers only transfer the organic pollutants from one phase to another and subsequent treatments are still required to further eliminate them. Besides, adsorbents need regular replacement because of their limited capacities. Thus, people turn to investigate more efficient and environmental friendly methods. Photocatalytic oxidation (PCO) is emerging as the most promising technology to remove indoor air pollutants especially volatile organic compounds (VOCs). Photocatalytic oxidation using TiO2 as catalyst in conjunction with UV irradiation has widely studied and proven to be an effective means of controlling volatile organic compounds. When TiO2 is UV-activated, it could yield a series of highly reactive electron-hole pairs, followed by hydroxyl radicals and super-oxide ions. Those substances which possess a high redox potential would further oxidize volatile organic compounds to CO2 and H2O. Apparently, rather than transferring Synthesis of Cu-Doped Ti-Containing MCM-41 and its

Synthesis of Cu-Doped Ti-Containing MCM-41 and its Photocatalytic Performance for Indoor Air Purification