title: Synthesized heterogeneous Fenton-like goethite (FeOOH) catalyst for degradation of p-chloronitrobenzene.
abstract: The removal of p-chloronitrobenzene (pCNB) was investigated by a heterogeneous Fenton-like system using a laboratory synthesized goethite (FeOOH) as catalyst. The influencing factors and the degradation pathway of pCNB were also evaluated. With a stronger catalytic activity than Fe(2+) catalyst, the synthesized FeOOH catalyst can significantly promote the decomposition of H(2)O(2), and the decomposition product hydroxyl radicals (·OH) can oxidize pCNB in the water effectively. The FeOOH catalyst can also adsorb a certain amount of pCNB, and the adsorption effect is related to the amount of FeOOH and the initial pH value of solution. The results of liquid chromatography-mass spectrometry (LC-MS) and gas chromatography-mass spectrometry (GC-MS) showed that the main intermediate products were phenolic compounds and carbonyl compounds. About 60% of pCNB was mineralized during the catalytic oxidation, and chlorine and nitro groups on benzene ring were converted into Cl(-) and NO(3)(-) after being attacked.
authors.affiliation: State Key Laboratory of Urban Water Resources and Environment, School of Municipal & Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, China E-mail: zhonglinchen@hit.edu.cn.
authors.forename: Jimin
authors.initials: J
authors.lastname: Shen
authors.forename: Jiayi
authors.initials: J
authors.lastname: Zhu
authors.forename: Yanli
authors.initials: Y
authors.lastname: Kong
authors.forename: Tianwen
authors.initials: T
authors.lastname: Li
authors.forename: Zhonglin
authors.initials: Z
authors.lastname: Chen
mesh_terms: D000327:Adsorption; D002384:Catalysis; D058085:Iron Compounds / Q000138:chemical synthesis*; D008903:Minerals / Q000138:chemical synthesis*; D015394:Molecular Structure; D009578:Nitrobenzenes / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry
chemical_list: D058085:Iron Compounds; D008903:Minerals; D009578:Nitrobenzenes; D014874:Water Pollutants, Chemical; C094886:goethite; C010407:4-chloronitrobenzene