TENG Xuegang, YANG Renchun, REN Chao, et al. Preparation of C/TiO2-SO42- and their water splitting performance[J]. CIESC Journal, 2017, (11): 4414-4422. DOI: 10.11949/j.issn.0438-1157.20170308.
TENG Xuegang, YANG Renchun, REN Chao, et al. Preparation of C/TiO2-SO42- and their water splitting performance[J]. CIESC Journal, 2017, (11): 4414-4422. DOI: 10.11949/j.issn.0438-1157.20170308.DOI:
The SO42- modified TiO2(25) and the unmodified TiO2(150) have been prepared by sol-gel method via controlling the amount of introduced deionized water. Two series of C modified Cx/TiO2(25) and Cx/TiO2(150) samples were obtained by impregnating the TiO2(25) and TiO2(150) in carbon dots solution with various concentrations. The lattice spacing
crystalline
light absorption
pore size
specific surface area and element composition of the prepared catalysts were characterized by TEM
XRD
FT-IR
UV-Vis
BET and XPS. The results indicated that compared with the unmodified TiO2(150)
the SO42- modified TiO2(25) exhibited a distinct red shift phenomenon and broader visible light response for the light absorption. Moreover
the Oads/Olatt ratios can be improved distinctly for the TiO2(25) when the carbon dots were introduced. The catalytic performance showed that the addition of C can enhance the corresponding photocatalytic activity.