TiO2 nanospheres/AgVO3 quantum dots composite with enhanced visible light photocatalytic antibacterial activity

Publication date: 15 October 2019Source: Materials Letters, Volume 253Author(s): Bingkun Liu, Xiaole Han, Lilong Mu, Jingtao Zhang, Hengzhen ShiAbstractTiO2 nanospheres/AgVO3 quantum dots composite was synthesized by a facile in situ ultrasonic reaction route and systematically characterized by XRD, XPS, FESEM, TEM, UV–DRS and PL. The results demonstrated that AgVO3 QDs were successfully anchored on the surface of TiO2 nanospheres. The TiO2/AgVO3 composite displayed a high and stable visible light photocatalytic inactivation activity toward E. coli, which mainly derived from the synergetic effect between TiO2 and AgVO3, including a good distribution of AgVO3 QDs on the surface of TiO2 nanospheres, increased visible light harvesting and improved separation efficiency of photoinduced electron-hole pairs. Our study revealed that TiO2/AgVO3 composite could be a promising candidate photocatalyst for treating microbial-contaminated water.
Source: Materials Letters - Category: Materials Science Source Type: research