引用本文:
颜秀茹, 宋宽秀, 霍明亮, 付贤松, 辛春伟. 纳米SnO2的制备条件及其光催化活性[J]. 应用化学,
2002, 19(8): 750-753.
Citation: YAN Xiu-Ru, SONG Kuan-Xiu, HUO Ming-Liang, FU Xian-Song, XIN Chun-Wei. Preparation and Photocatalytic Degradation Activity of Nanometer SnO2[J]. Chinese Journal of Applied Chemistry, 2002, 19(8): 750-753.
Citation: YAN Xiu-Ru, SONG Kuan-Xiu, HUO Ming-Liang, FU Xian-Song, XIN Chun-Wei. Preparation and Photocatalytic Degradation Activity of Nanometer SnO2[J]. Chinese Journal of Applied Chemistry, 2002, 19(8): 750-753.
纳米SnO2的制备条件及其光催化活性
摘要:
以SnCl4·5H2O为原料,采用水解沉淀法制备了粒度均匀的纳米SnO2,并用IR、XRD、SEM、TEM和BET等手段进行了表征。以二甲基二氯乙烯基磷酸酯(DDVP)稀释液为模拟废水,考察了SnO2的光催化分解活性。结果表明,所得SnO2·nH2O经680℃焙烧后仍为金红石型,粒径约8nm左右,其表面积为54.186m2/g。SnCl4浓度为5.71×10-2mol/L,水解温度为3℃,pH=5,焙烧温度为680℃条件是制备SnO2的最佳条件。在所得纳米SnO2存在下DDVP经300W高压汞灯光照30min后,降解率可达18.32%。
English
Preparation and Photocatalytic Degradation Activity of Nanometer SnO2
Abstract:
Nanometer SnO2 particles have been prepared from SnCl4·5H2O by precipitation and followed by calcination. The structure and morphology of the product were characterized by IR, XRD, SEM, TEM and BET techniques. The results indicated the products were rutile SnO2 with average particle size of 8 nm, specific surface of 54.186 m2/g. At the preparation conditions:c(SnCl4)=5.7×10-2mol/L, pH=5.0, hydrolysis temperature 3℃, and calcination temperature 680℃, the sample with best photocatalytic degradation activity was obtained. The degradation degree of dimethyldichlorovinyl phosphate(DDVP) reached 18.32% after 30 min illumination in the presence of nanometer SnO2.
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Key words:
- SnO2
- / nanometer particle
- / photocatalytic degradation activity
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