引用本文:
Yan Qing Cong, Zu Cheng Wu. Self-regeneration of activated carbon modified with palladium catalyst for electrochemical dechlorination[J]. Chinese Chemical Letters,
2007, 18(8): 1013-1016.
doi:
10.1016/j.cclet.2007.05.039
Citation: Yan Qing Cong, Zu Cheng Wu. Self-regeneration of activated carbon modified with palladium catalyst for electrochemical dechlorination[J]. Chinese Chemical Letters, 2007, 18(8): 1013-1016. doi: 10.1016/j.cclet.2007.05.039
Citation: Yan Qing Cong, Zu Cheng Wu. Self-regeneration of activated carbon modified with palladium catalyst for electrochemical dechlorination[J]. Chinese Chemical Letters, 2007, 18(8): 1013-1016. doi: 10.1016/j.cclet.2007.05.039
Self-regeneration of activated carbon modified with palladium catalyst for electrochemical dechlorination
摘要:
Catalyst regeneration and the retention of high catalytic activity are still the critical issues in environmental application. A novel fluidized gas-liquid-solid electrochemical reactor was developed to simultaneously remove chlorinated pollutants and in situ regenerate the spent catalyst. Activated carbon modified with palladium catalyst (AC-Pd) was prepared for electrochemical dechlorination. For the 4-chlorophenol wastewater of initial concentration 200 mg L-1, the removal efficiency could nearly reach 100% in less than 30 min. Catalytic activity of AC-Pd catalyst was preserved effectively even in consecutive cycling run without special regeneration. *OH radicals, generated by electrochemical reaction, played a critical role in self-regeneration of AC-Pd. High catalytic activity of spent AC-Pd catalyst provided an attractive alternative in wastewater treatment.
English
Self-regeneration of activated carbon modified with palladium catalyst for electrochemical dechlorination
Abstract:
Catalyst regeneration and the retention of high catalytic activity are still the critical issues in environmental application. A novel fluidized gas-liquid-solid electrochemical reactor was developed to simultaneously remove chlorinated pollutants and in situ regenerate the spent catalyst. Activated carbon modified with palladium catalyst (AC-Pd) was prepared for electrochemical dechlorination. For the 4-chlorophenol wastewater of initial concentration 200 mg L-1, the removal efficiency could nearly reach 100% in less than 30 min. Catalytic activity of AC-Pd catalyst was preserved effectively even in consecutive cycling run without special regeneration. *OH radicals, generated by electrochemical reaction, played a critical role in self-regeneration of AC-Pd. High catalytic activity of spent AC-Pd catalyst provided an attractive alternative in wastewater treatment.
-
Key words:
- Activated carbon
- / Palladium
- / Electrochemical dechlorination
- / Hydroxyl radical
- / Regeneration
扫一扫看文章
计量
- PDF下载量: 0
- 文章访问数: 827
- HTML全文浏览量: 33
下载:
