title: Iron encapsulated in 3D N-doped carbon nanotube/porous carbon hybrid from waste biomass for enhanced oxidative activity.
abstract: Novel iron encapsulated in nitrogen-doped carbon nanotubes (CNTs) supported on porous carbon (Fe@N-C) 3D structured materials for degrading organic pollutants were fabricated from a renewable, low-cost biomass, melamine, and iron salt as the precursors. SEM and TEM micrographs show that iron encapsulated bamboo shaped CNTs are vertically standing on carbon sheets, and thus, a 3D hybrid was formed. The catalytic activities of the prepared samples were thoroughly evaluated by activation of peroxymonosulfate for catalytic oxidation of Orange II solutions. The influences of some reaction conditions (pH, temperature, and concentrations of reactants, peroxymonosulfate, and dye) were extensively evaluated. It was revealed that the adsorption could enrich the pollutant which was then rapidly degraded by the catalytically generated radicals, accelerating the continuous adsorption of residual pollutant. Remarkable carbon structure, introduction of CNTs, and N/Fe doping result in promoted adsorption capability and catalytic performances. Due to the simple synthetic process and cheap carbon precursor, Fe@N-C 3D hybrid can be easily scaled up and promote the development of Fenton-like catalysts.
authors.affiliation: Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, China. yaoyunjin@gmail.com.|CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei, 230026, China. yaoyunjin@gmail.com.
authors.forename: Yunjin
authors.identifier: http://orcid.org/0000-0002-5462-4973
authors.initials: Y
authors.lastname: Yao
authors.affiliation: Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, China.
authors.forename: Guodong
authors.initials: G
authors.lastname: Wu
authors.affiliation: Department of Chemical Engineering, Curtin University, G.P.O. Box U1987, Perth, WA, 6845, Australia. shaobin.wang@curtin.edu.au.
authors.forename: Shaobin
authors.initials: S
authors.lastname: Wang
authors.affiliation: Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Hu
authors.affiliation: Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, China.
authors.forename: Cong
authors.initials: C
authors.lastname: Su
authors.affiliation: CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei, 230026, China. twxu@ustc.edu.cn.
authors.forename: Tongwen
authors.initials: T
authors.lastname: Xu
mesh_terms: D000327:Adsorption; D001391:Azo Compounds / Q000737:chemistry*; D001557:Benzenesulfonates / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D007501:Iron / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry*; D010084:Oxidation-Reduction; D016062:Porosity; D014227:Triazines / Q000737:chemistry*; D014866:Waste Products; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods
chemical_list: D001391:Azo Compounds; D001557:Benzenesulfonates; D037742:Nanotubes, Carbon; D014227:Triazines; D014866:Waste Products; D014874:Water Pollutants, Chemical; D002244:Carbon; D007501:Iron; C011907:melamine; D009584:Nitrogen; C014722:2-naphthol orange
keywords: Biomass; Carbon nanotube; Fenton-like reaction; Organic pollutants; Radical reaction