Title :
Fabrication and characterisation of hollow carbon/anatase titania
Author :
Lixin Zhang ; Tao Fan ; Hongfang Jiu ; Yixin Sun ; Xingwei Han ; Huan Cheng ; Zhenghao Li ; Guode Liu ; Qinglin Su
Author_Institution :
Dept. of Chem. Eng. & Environ., North Univ. of China, Taiyuan, China
fDate :
10/1/2010 12:00:00 AM
Abstract :
A facile approach for the fabrication of hollow carbon/anatase titania (C/TiO2) is demonstrated. The employed protocol involves the coating of silica template beads with layers of carbon. Furthermore, anatase titania is coated on SiO2/C through a sol-gel approach, followed by hydrothermal treatment at 180-C for 12-h, and hollow C/TiO2 is obtained by removal of silica using hydrofluoric acid (HF). The products are characterised by Fourier transform infrared, X-ray powder diffraction, transmission electron microscopy and scanning electron microscopy. The results show that the hollow carbon is supported on anatase titania with a diameter of 500 nm, and the wall thickness is about 70 nm.
Keywords :
Fourier transform spectra; X-ray diffraction; carbon; coatings; crystal growth from solution; heat treatment; infrared spectra; nanofabrication; scanning electron microscopy; semiconductor materials; silicon compounds; sol-gel processing; titanium compounds; transmission electron microscopy; C-TiO2; Fourier transform infrared spectra; X-ray powder diffraction; anatase titania; coating; facile approach; hollow carbon; scanning electron microscopy; silica template beads; size 500 nm; sol-gel approach; temperature 180 degC; time 12 h; transmission electron microscopy;
Journal_Title :
Micro & Nano Letters, IET
DOI :
10.1049/mnl.2010.0142
