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Effects of Nano-TiO2 on Photocatalytic Degradation Reaction of TNT and HMX
Author(s): 
Pages: 401-405
Year: Issue:  4
Journal: CHINESE JOURNAL OF ENERGETIC MATERIALS

Keyword:  物理化学纳米二氧化钛光催化降解梯恩梯(TNT)奥克托今(HMX);
Abstract: 采用不同热处理温度自制的纳米二氧化钛粉体为催化剂,在不同反应温度及不同紫外光强度下,对梯恩梯(TNT)和奥克托今(HMX)的降解效率分别进行了研究.研究表明,采用纳米二氧化钛-紫外光体系降解TNT和HMX比单独紫外光作用更优异,降解率更高,分别达到93.46%和94.12%,490 ℃热处理得到的锐钛矿相二氧化钛降解效果最好.在常温范围内升高反应温度和增大紫外光强度均有利于降解率的提高.动力学研究表明,该降解反应机理符合Langmuir-Hinshelwood模型,同等条件下HMX的降解速率大于TNT.
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