title: Facile and scalable synthesis of magnetite/carbon adsorbents by recycling discarded fruit peels and their potential usage in water treatment.
abstract: In this study, apple, banana and orange peels were used as precursor compounds for the mass production of magnetite/carbon adsorbents. A so-called "soak-calcination" procedure was employed by firstly soaking these waste fruit peels in FeCl3aqueous solutions and secondly calcining these precursors in the nitrogen atmosphere to yield final magnetite/carbon composites. This approach is quite simple and effective to synthesize carbon-based adsorbents on an industrial scale. The as-produced adsorbents feature the merits of appropriate ferromagnetism (>4emug-1), high adsorption capacity (several hundreds of milligrams per gram for adsorption of methyl blue, Congo red, rhodamine B and Cr6+ions), and good regenerability (>85%).
authors.affiliation: Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, China.
authors.forename: Ji
authors.initials: J
authors.lastname: Ma
authors.affiliation: Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, China.
authors.forename: Shuangshuang
authors.initials: S
authors.lastname: Sun
authors.affiliation: Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, China. Electronic address: kchen@qust.edu.cn.
authors.forename: Kezheng
authors.initials: K
authors.lastname: Chen
mesh_terms: D000327:Adsorption; D002244:Carbon; D052203:Ferrosoferric Oxide; D005638:Fruit; D059027:Recycling; D014874:Water Pollutants, Chemical; D018508:Water Purification
chemical_list: D014874:Water Pollutants, Chemical; D002244:Carbon; D052203:Ferrosoferric Oxide
keywords: Adsorption and desorption; Dyes; Fruit peels; Heavy metal ions