Efficient Degradation of Methylene Blue by the Nano TiO2-functionalized Graphene Oxide Nanocomposite Photocatalyst for Wastewater Treatment

摘要

Herein, an efficient nano TiO2-functionalized graphene oxide nanocomposite photocatalyst was readily prepared, using an ordinary solvothermal technique. It was noted that the as-prepared nanocomposite yielded a quadruple degradation capacity of the previously reported P25-graphene composite photocatalyst towards methylene blue ( MB). To elucidate this, the BrunauerEmmett-Teller (BET)-specific surface area, conductivity, and water contact angle measurements were all carried out. It was found out that graphene oxide was endowed with nontrivial photocatalytic activity by increasing its content in the nanocomposite (from 1/100 to 1/9, with respect to the dosage of nano TiO2). Overall, the nano TiO2-functionalized graphene oxide nanocomposite is a promising candidate in applications of environment remediation.