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Research Group

Catalytic Purification Group

Group Leader: Hu Chun Laboratory: State Key Laboratory of Environmental Aquatic Chemistry

  Catalytic Purification Group 

  Chun Hu, Ph.D, Professor, State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. She attained B.S. and M.Sc. in1985 and 1993 at Jilin University. And in 2001, She received Ph.D degree from Chinese Academy of Sciences. In 1996 and 2001, she worked as visiting scholar at German Research Center for Environmental Health, and Chinese University of Hong Kong. Then she established her group for catalytic purification of water in 2005. Major research direction: Chemistry for the control of water pollution, including safe transformation of pollutants in water,  safe transportation and distribution of potable water supply. Proposing mechanism and method for the transformation of pollutants in water and the stability of water quality in drinking water distribution.  By now,  more than 90 publications on J. Am. Chem. SocEnviron. Sci. & Technol and so on. Her findings about the electron transfer at water-solid interface are payed attetion by international peer,  SCI publications were cited for more than 2500 times. 

ContactE-mail: huchun@rcees.ac.cn;: 010-62849628;TelFax010-62923541

  The electron transfer and the enhancement of H2O2 utilization efficiency at Cu-based Fenton catalyst-pollutant -water interface. 

  Fenton reactions have been proven to be effective methods for eliminating the many recalcitrant organic pollutants in water due to the generation of hydroxyl radicals (·OH). However, the low reaction rate and the excessive consumption of H2O2 limited the application of Fenton reactions to practical water treatment. In this present, mesoporous Cu+/2+ -doped γ-Al2O3(γ-Cu-Al2O3) was prepared. The catalyst was found to be highly effective and stable for the degradation and mineralization of aromatic pollutants, and the high utilization efficiency of H2O2 was maintained at approximately 90% prior to the disappearance of the initial aromatic pollutants. In the reaction system, in addition to the unselective oxidation of ·OH, H2O2 directly attacked the s-Cu2+-complexes aromatic ring with the phenolic OH group, which resulted in the formation of ·OH and HO-adduct radicals that were oxidized to hydroxylation products by reduction of Cu2+ in the s-Cu2+-complexes to Cu+. The process prevented Cu2+ from oxidizing H2O2 to form HO2·/O2· or O2, which enhanced the Cu+/Cu2+ cycle, the formation of ·OH and the utilization efficiency of H2O2. Meanwhile g-C3N4-CuCo-g-Al2O3 heterogeneous Fenton catalyst was prepared. It was found that the s-Cu - C3N4 complexes were formed by the phenolic OH group of hydroxylated g-C3N4 and the surface Cuand the ·OH was generated with the reaction of Cu+ and H2O2, the resulted Cu2+ was reduced to Cu+ by the p electron of aromatic ring of C3N4 from s-Cu2+- C3N4 complexes, meanwhile the resulted suface h+ of C3N4 reacted with H2O forming ·OH. Thus, it amounted to one H2O2 changing into 2 ·OH. Therefore, the highutilization efficiency of H2O2 was more than 90% for degradation and mineralization of bisphenol A and so on most of refractory pollutants. Our findings present new Fenton catalytic mechanism for the first time, dealing with the key problem of Fenton technology for pratical application.

heterogeneous Fenton reaction mechanism of nano-Cu based catalyst

References 

  1.  Lyu Lai, Zhang Lili, Wang Qiyuan, Nie Yulun, Hu Chun*. (2015) Enhanced Fenton catalytic efficiency of g-Cu-Al2O3 by s-Cu2+-Ligand Complexes from aromatic pollutant degradation, Environ. Sci. Technol. 49(14) , 8639-8647. 

  2.  Lyu Lai., Zhang Lili., Hu Chun*. (2015) Enhanced Fenton-like degradation of pharmaceuticals over framework copper species in copper-doped mesoporous silica microspheres, Chem. Eng. J., 274, 298-306. 

  3. 一种固体芬顿催化剂及其制备方法与应用 胡春, 吕来,张丽丽,发明专利受理号:201610121173.8.

Group Leader:  Prof. Chun Hu

  Member 

Yulun Nie 

Associate Professor 

Haibo Wang 

Associate Professor 

Lili Zhang 

Associate Professor 

Xuhua Liu  

Secretary 

Postdoctoral Fellow

Honghai Xue 

2014 

Students 

Degree 

Year 

Jishuai Bing 

Ph.D 

2012 

Huanhuan Ji 

Ph.D 

2013 

Luchao Han 

Ph.D 

2013 

Lai Liu 

Ph.D 

2012 

Lizhong Liu 

Ph.D 

2014 

Xueci Xing 

Ph.D 

2015 

Fan Li 

Ph.D 

2016 

Sai Zhang 

Master 

2015 

Guangfei Yu 

Master 

2016 

Ning Jiang 

Master 

2016 

Huihui Li 

Master 

2016 (joint-training) 

Qingqing Jin 

Master 

2016 (joint-training) 

Yilun Shi 

Master 

2016 (joint-training) 

Representative Publications: 

  1. Lyu Lai, Zhang Lili, Wang Qiyuan, Nie Yulun, Hu Chun*. (2015) Enhanced Fenton catalytic efficiency of g-Cu-Al2O3 by s-Cu2+-Ligand Complexes from aromatic pollutant degradation, Environ. Sci. Technol. 49(14) , 8639-8647. 

  2. Bing Jishuai, Hu Chun*, Nie Yulun, Yang Min, Qu Jiuhui. (2015) Mechanism of catalytic ozonation in Fe2O3/Al2O3@SBA-15 aqueous suspension for destruction of  ibuprofen, Environ. Sci. Technol., 49 1690-1697. 

  3. Wang Haibo, Hu Chun*, Han luchao, Yang Min. (2015) Effects of microbial cycling of Fe(II)/Fe(III) and Fe/N on cast iron corrosion in simulated drinking water distribution systems, Corros. Sci. 100, 599–606.

 


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