Wang Chih-Chieh, Yu Chung-Yi, Kei Chi-Chung, Perng Tsong-Pyng
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 300, Taiwan.
J Nanosci Nanotechnol. 2011 Jan;11(1):200-3. doi: 10.1166/jnn.2011.3044.
Rutile TiO2 nanowires anchored on silica were fabricated by annealing TiO2 nanoparticles dispersed on silicon or quartz substrate by means of a polystyrene nanosphere monolayer template at 1000 degrees C for 1 h without any catalyst. The diameter and length of the nanowires were 30-80 nm and 1-3 microm, respectively. The growth direction of the nanowires is [112]. The photocatalytic activities of TiO2 nanoparticles and anchored nanowires were evaluated. TiO2 nanowires had higher photocatalytic activity for rhodamine B than TiO2 nanoparticles.
通过在无任何催化剂的情况下，利用聚苯乙烯纳米球单层模板在1000℃下对分散在硅或石英基板上的TiO₂纳米颗粒进行1小时退火，制备了锚定在二氧化硅上的金红石型TiO₂纳米线。纳米线的直径和长度分别为30 - 80纳米和1 - 3微米。纳米线的生长方向为[112]。评估了TiO₂纳米颗粒和锚定纳米线的光催化活性。TiO₂纳米线对罗丹明B的光催化活性高于TiO₂纳米颗粒。
