title: Porous chitosan doped with graphene oxide as highly effective adsorbent for methyl orange and amido black 10B.
abstract: In the current study, porous chitosan aerogels doped with small amount of graphene oxide (CSGO aerogels) with high porosity (97.96-98.78%), extraordinarily high water absorption (5848-8917%) and low density (0.021-0.035 g cm(-3)) were prepared and used as adsorbents for two azo dyes methyl orange (MO) and amido black 10B (AB10B). The adsorption behavior of these CSGO aerogels and some influence factors such as pH value, graphene oxide (GO) loading, concentration of pollutants, as well as adsorption kinetics were studied. Specifically, the adsorption capacity for MO is 686.89 mg g(-1), the highest comparing with other publication results, and it is 573.47 mg g(-1) for AB10B. Since they are biodegradable, non-toxic, efficient, low-cost and easy to prepare, we believe that these porous CSGO aerogels will be a promising candidate for dye removal.
authors.affiliation: College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Guangmei
authors.initials: G
authors.lastname: Xia
authors.affiliation: College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Cong
authors.initials: C
authors.lastname: Wu
authors.affiliation: Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Sun
authors.affiliation: College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: rsong@gucas.ac.cn.
authors.forename: Rui
authors.initials: R
authors.lastname: Song
authors.affiliation: Laboratory of Advanced Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Huang
mesh_terms: D000327:Adsorption; D000580:Amido Black / Q000737:chemistry*; D001391:Azo Compounds / Q000737:chemistry*; D048271:Chitosan / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D016062:Porosity; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification
chemical_list: D001391:Azo Compounds; D004396:Coloring Agents; D014874:Water Pollutants, Chemical; C100258:methyl orange; D006108:Graphite; D048271:Chitosan; D000580:Amido Black
keywords: Adsorption; Amido black 10B; Chitosan; Graphene oxide; Methyl orange