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 shu

Self-regeneration of activated carbon modified with palladium catalyst for electrochemical dechlorination

Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China

Received Date: 1 March 2007

Fund Project: This work was financially supported by the National Natural Science Foundation of Zhejiang Province, China (no. Z505060) and China Postdoctoral Science Foundation (no. 2005038290).

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.
- Activated carbon,
- Palladium,
- Electrochemical dechlorination,
- Hydroxyl radical,
- Regeneration
1. [1]
  Hailong He , Wenbing Wang , Wenmin Pang , Chen Zou , Dan Peng . Double stimulus-responsive palladium catalysts for ethylene polymerization and copolymerization. Chinese Chemical Letters, 2024, 35(7): 109534-. doi: 10.1016/j.cclet.2024.109534
2. [2]
  Zhao Gu , Yunhui Yang , Song Ye , Congyang Wang . 2,3-Arylacylation of allenes through synergetic catalysis of palladium and N-heterocyclic carbene. Chinese Chemical Letters, 2025, 36(5): 110334-. doi: 10.1016/j.cclet.2024.110334
3. [3]
  Xiaohui Fu , Yanping Zhang , Juan Liao , Zhen-Hua Wang , Yong You , Jian-Qiang Zhao , Mingqiang Zhou , Wei-Cheng Yuan . Palladium-catalyzed enantioselective decarboxylation of vinyl cyclic carbamates: Generation of amide-based aza-1,3-dipoles and application to asymmetric 1,3-dipolar cycloaddition. Chinese Chemical Letters, 2024, 35(12): 109688-. doi: 10.1016/j.cclet.2024.109688
4. [4]
  Chi Zhang , Ning Ding , Yuwei Pan , Lichun Fu , Ying Zhang . The degradation pathways of contaminants by reactive oxygen species generated in the Fenton/Fenton-like systems. Chinese Chemical Letters, 2024, 35(10): 109579-. doi: 10.1016/j.cclet.2024.109579
5. [5]
  Gongcheng Ma , Qihang Ding , Yuding Zhang , Yue Wang , Jingjing Xiang , Mingle Li , Qi Zhao , Saipeng Huang , Ping Gong , Jong Seung Kim . Palladium-free chemoselective probe for in vivo fluorescence imaging of carbon monoxide. Chinese Chemical Letters, 2024, 35(9): 109293-. doi: 10.1016/j.cclet.2023.109293
6. [6]
  Qiqi Li , Su Zhang , Yuting Jiang , Linna Zhu , Nannan Guo , Jing Zhang , Yutong Li , Tong Wei , Zhuangjun Fan . 前驱体机械压实制备高密度活性炭及其致密电容储能性能. Acta Physico-Chimica Sinica, 2025, 41(3): 2406009-. doi: 10.3866/PKU.WHXB202406009
7. [7]
  Yaxuan Jin , Chao Zhang , Guigang Zhang . Atomically dispersed low-valent Au on poly(heptazine imide) boosts photocatalytic hydroxyl radical production. Chinese Journal of Structural Chemistry, 2024, 43(12): 100414-100414. doi: 10.1016/j.cjsc.2024.100414
8. [8]
  Shaofeng Gong , Zi-Wei Deng , Chao Wu , Wei-Min He . Stabilized carbon radical-mediated three-component functionalization of amino acid/peptide derivatives. Chinese Chemical Letters, 2025, 36(5): 110936-. doi: 10.1016/j.cclet.2025.110936
9. [9]
  Xin Zhang , Junyu Chen , Xiang Pei , Linxin Yang , Liang Wang , Luona Chen , Guangmei Yang , Xibo Pei , Qianbing Wan , Jian Wang . Drug-loading ZIF-8 for modification of microporous bone scaffold to promote vascularized bone regeneration. Chinese Chemical Letters, 2024, 35(6): 108889-. doi: 10.1016/j.cclet.2023.108889
10. [10]
  Lingna Wang , Chenxin Tian , Ruobin Dai , Zhiwei Wang . Eco-friendly regeneration of end-of-life PVDF membrane with triethyl phosphate: Efficiency and mechanism. Chinese Chemical Letters, 2024, 35(9): 109356-. doi: 10.1016/j.cclet.2023.109356
11. [11]
  Ming-Zhen Li , Yang Zhang , Kun Li , Ya-Nan Shang , Yi-Zhen Zhang , Yu-Jiao Kan , Zhi-Yang Jiao , Yu-Yuan Han , Xiao-Qiang Cao . In situ regeneration of catalyst for Fenton-like degradation by photogenerated electron transportation: Characterization, performance and mechanism comparison. Chinese Chemical Letters, 2025, 36(1): 109885-. doi: 10.1016/j.cclet.2024.109885
12. [12]
  Jielin Wang , Han Ye , Bozhuang Zhou , Zhen Pan , Yucai Li , Zhenyuan Wei , Bin Chai , Yizhou Gao , Xiaojian Ye , Jiangming Yu . Biomimetic nanofibrillar/hyaluronic acid hydrogels remodel the neuromodulatory microenvironment for enhanced bone regeneration. Chinese Chemical Letters, 2025, 36(5): 110133-. doi: 10.1016/j.cclet.2024.110133
13. [13]
  Zeyu XU , Tongzhou LU , Haibo SHAO , Jianming WANG . Preparation and electrochemical lithium storage performance of porous silicon microsphere composite with metal modification and carbon coating. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1995-2008. doi: 10.11862/CJIC.20240164
14. [14]
  Shuai Zhu , Mingjie Chen , Haichao Shen , Hanming Ding , Wenbo Li , Junliang Zhang . Palladium/Xu-Phos-catalyzed enantioselective arylalkoxylation reaction of γ-hydroxyalkenes at room temperature. Chinese Chemical Letters, 2024, 35(11): 109879-. doi: 10.1016/j.cclet.2024.109879
15. [15]
  Yunqiang Li , Yongxian Huang , Sinuo Li , He Huang , Zhiwei Jiao . Elaborating azaaryl alkanes enabled by photoredox/palladium dual catalyzed dialkylation of azaaryl alkenes. Chinese Chemical Letters, 2025, 36(4): 110051-. doi: 10.1016/j.cclet.2024.110051
16. [16]
  Yu He , Hao Jiang , Shaoxuan Yuan , Jiayi Lu , Qiang Sun . On-surface photo-induced dechlorination. Chinese Chemical Letters, 2024, 35(9): 109807-. doi: 10.1016/j.cclet.2024.109807
17. [17]
  Xiangdong Lai , Tengfei Liu , Zengchao Guo , Yihan Wang , Jiang Xiao , Qingxiu Xia , Xiaohui Liu , Hui Jiang , Xuemei Wang . In situ formed fluorescent gold nanoclusters inhibit hair follicle regeneration in oxidative stress microenvironment via suppressing NFκB signal pathway. Chinese Chemical Letters, 2025, 36(2): 109762-. doi: 10.1016/j.cclet.2024.109762
18. [18]
  Yun-Fei Zhang , Chun-Hui Zhang , Jian-Hui Xu , Lei Li , Dan Li , Jin-Hong Fan , Jiale Gao , Xin Quan , Qi Wu , Yue Zou , Yan-Ling Liu . Enhanced degradation of florfenicol by microscale SiC/Fe: Dechlorination via hydrogenolysis. Chinese Chemical Letters, 2024, 35(7): 109385-. doi: 10.1016/j.cclet.2023.109385
19. [19]
  Hengyi ZHU , Liyun JU , Haoyue ZHANG , Jiaxin DU , Yutong XIE , Li SONG , Yachao JIN , Mingdao ZHANG . Efficient regeneration of waste LiNi_0.5Co_0.2Mn_0.3O₂ cathode toward high-performance Li-ion battery. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 625-638. doi: 10.11862/CJIC.20240358
20. [20]
  Ke Zhang , Sheng Zuo , Pengyuan You , Tong Ru , Fen-Er Chen . Palladium-catalyzed stereoselective decarboxylative [4 + 2] cyclization of 2-methylidenetrimethylene carbonates with pyrrolidone-derived enones: Straightforward access to chiral tetrahydropyran-fused spiro-pyrrolidine-2,3-diones. Chinese Chemical Letters, 2024, 35(6): 109157-. doi: 10.1016/j.cclet.2023.109157

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(756)
HTML views(32)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return