Solar Activated Photocatalytic Conversion of CO_2 and Water to Fuels by TiO_2-Based Nanocomposites

摘要

Photocatalytic reduction of CO_2 by H_2O for production of Cl fuels (CO and CH4) was studied using copper and iodine co-modified TiO_2 (CU-I/TiO_2) nanocomposites, with copper deposited on the surface and iodine doped in the lattice. The nanocomposites were prepared via a combined hydrothermal and wet impregnation process. All I-doped samples demonstrated visible light activity. Under UV-vis irradiation, co-modification of Cu and 1 significantly increased TiO_2 photoactivity compared with bare TiO_2 or those modified with only one species.