Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
583704 | Journal of Hazardous Materials | 2008 | 4 Pages |
Abstract
A method of decomposing hexachlorobenzene (HCB) by γ-alumina was investigated at low temperature of 300 °C. It was found that HCB was rather quickly decomposed under such a condition. Decomposition efficiency (DE) increases with increasing the surface area of γ-alumina. Pretreated γ-alumina has a better performance for the decomposition reaction. A high decomposition efficiency within the short reactive time of 60 min was achieved to be 94.2%, which was obtained by preheating γ-alumina with the surface area of 220 m2 gâ1 at 450 °C for 2 h. High surface area and appropriate pretreatment temperature probably provide more reactive sites such as the isolated OH groups and Al3+ sites surrounded by O2â sites. These sites may induce the decomposition of HCB via a main ring-cracking process. The present study, hopefully, holds the promise for the eliminating of HCB contained hazardous materials in industrial application.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
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Authors
Lifei Zhang, Minghui Zheng, Wenbin Liu, Bing Zhang, Guijin Su,