title: Selective Fenton-like oxidation of methylene blue on modified Fe-zeolites prepared via molecular imprinting technique.
abstract: A facile strategy to increase the selectivity of heterogeneous Fenton oxidation is investigated. The increase was reached by increasing selective adsorption of heterogeneous Fenton catalyst to a target pollutant. The heterogeneous Fenton catalyst was prepared by a two-step process. First, zeolite particles were imprinted by the target pollutant, methylene blue (MB), in their aggregations, and second, iron ions were loaded on the zeolite aggregations to form the molecule imprinted Fe-zeolites (MI-FZ) Fenton catalyst. Its adsorption amount for MB reached as high as 44.6 mg g-1while the adsorption amount of un-imprinted Fe-zeolites (FZ) is only 15.6 mg g-1. Fenton removal efficiency of MI-FZ for MB was 87.7%, being 33.9% higher than that of FZ. The selective Fenton oxidation of MI-FZ for MB was further confirmed by its removal performance for the mixed MB and bisphenol A (BPA) in solution. The removal efficiency of MB was 44.7% while that of BPA was only 14.9%. This fact shows that molecular imprinting is suitable to prepare the Fe-zeolites (FZ)-based Fenton catalyst with high selectivity for removal of target pollutants, at least MB.
authors.affiliation: School of Marine Sciences, Coral Reef Research Center of China, Guangxi University, Nanning 530004, China E-mail: jiedeng05@sina.com.
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: School of Marine Sciences, Coral Reef Research Center of China, Guangxi University, Nanning 530004, China E-mail: jiedeng05@sina.com.
authors.forename: Jiaobo
authors.initials: J
authors.lastname: Shang
authors.affiliation: School of Marine Sciences, Coral Reef Research Center of China, Guangxi University, Nanning 530004, China E-mail: jiedeng05@sina.com.
authors.forename: Yanqun
authors.initials: Y
authors.lastname: Song
authors.affiliation: School of Marine Sciences, Coral Reef Research Center of China, Guangxi University, Nanning 530004, China E-mail: jiedeng05@sina.com.
authors.forename: Chuan
authors.initials: C
authors.lastname: Rong
authors.affiliation: School of Marine Sciences, Coral Reef Research Center of China, Guangxi University, Nanning 530004, China E-mail: jiedeng05@sina.com.
authors.forename: Yinghui
authors.initials: Y
authors.lastname: Wang
authors.affiliation: School of Marine Sciences, Coral Reef Research Center of China, Guangxi University, Nanning 530004, China E-mail: jiedeng05@sina.com.
authors.forename: Wenyu
authors.initials: W
authors.lastname: Huang
authors.affiliation: School of Marine Sciences, Coral Reef Research Center of China, Guangxi University, Nanning 530004, China E-mail: jiedeng05@sina.com; South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
authors.forename: Kefu
authors.initials: K
authors.lastname: Yu
mesh_terms: D000327:Adsorption; D001559:Benzhydryl Compounds / Q000032:analysis*; D002384:Catalysis; D006861:Hydrogen Peroxide / Q000737:chemistry*; D007501:Iron / Q000737:chemistry*; D008751:Methylene Blue / Q000032:analysis*; D054802:Molecular Imprinting; D010084:Oxidation-Reduction; D010636:Phenols / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D017641:Zeolites / Q000138:chemical synthesis / Q000737:chemistry*; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D006861:Hydrogen Peroxide; D007501:Iron; D008751:Methylene Blue; D010636:Phenols; D014874:Water Pollutants, Chemical; D017641:Zeolites; C045076:Fenton's reagent; C006780:bisphenol A; D000098826:Bisphenol A Compounds