Frontiers of Optoelectronics, 2017, 10 (4): 395, 网络出版: 2018-01-17
Synthesis of porous TiO2 nanowires and their photocatalytic properties
Synthesis of porous TiO2 nanowires and their photocatalytic properties
摘要
Abstract
Porous titanium dioxide (TiO2) nanowires were synthesized via a surfactant-free hydrothermal method followed by acid-washing process and calcination. The structures and morphologies of products were characterized by field emission scanning electron microscopy (FESEM), Transmission electron microscopy (TEM), X-ray diffraction (XRD), and Brunauer-Emmett- Teller (BET) N2 adsorption-desorption analyses. The analysis of FESEM suggested the precursor was composed of a vast of uniform nanostructures like wires. The nanowire-like precursor was transformed into the porous nanowire after acid-treatment and calcination at 500°C for 2 h in air. The surface area of as-synthesized TiO2 nanowires calculated by BET is 86.4 m2/g. Furthermore, the photocatalytic properties of synthesized porous TiO2 nanowires were evaluated through the degradation of methylene blue (MB) and Rhodamine B (RhB). The results clearly suggested that the as-prepared porous TiO2 nanowires showed remarkable photocatalytic performance on the degradation of RhB and MB due to their small size of nanocrystallites and the porous naonstructure.
Yonglun TANG, Haibo REN, Jiarui HUANG. Synthesis of porous TiO2 nanowires and their photocatalytic properties[J]. Frontiers of Optoelectronics, 2017, 10(4): 395. Yonglun TANG, Haibo REN, Jiarui HUANG. Synthesis of porous TiO2 nanowires and their photocatalytic properties[J]. Frontiers of Optoelectronics, 2017, 10(4): 395.