title: Fabrication of interpenetrating polymer network chitosan/gelatin porous materials and study on dye adsorption properties.
abstract: One kind of adsorbent based on chitosan and gelatin with interpenetrating polymer networks (IPN) and porous dual structures was prepared using genipin as the cross-linker. These dual structures were demonstrated by means of Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). Adsorptions of acid orange II dye from aqueous solution were carried out at different genipin contents, adsorption times and pH values. The results showed that this material was put up the largest adsorption capacity when the genipin content is 0.25 mmol/L, meanwhile, the lower the solution pH value the greater the adsorption capacity. The chitosan/gelatin interpenetrating polymer networks porous material displayed pH-sensitive and rapidly response in adsorption and desorption to pH altered. It is indicated that the cross-linked chitosan/gelatin interpenetrating polymer networks porous material could be used as a recyclable adsorbent in removal or separation of anionic dyes as environmental pH condition changed.
authors.affiliation: State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430073, China. Electronic address: cuili05@gmail.com.
authors.forename: Li
authors.initials: L
authors.lastname: Cui
authors.affiliation: State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430073, China.
authors.forename: Zihao
authors.initials: Z
authors.lastname: Xiong
authors.affiliation: State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430073, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Guo
authors.affiliation: State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430073, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Liu
authors.affiliation: State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430073, China.
authors.forename: Jinchao
authors.initials: J
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430073, China.
authors.forename: Chuanjie
authors.initials: C
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430073, China. Electronic address: pzhu99@163.com.
authors.forename: Ping
authors.initials: P
authors.lastname: Zhu
mesh_terms: D000327:Adsorption; D001391:Azo Compounds / Q000302:isolation & purification*; D048271:Chitosan / Q000737:chemistry*; D004396:Coloring Agents / Q000302:isolation & purification*; D003432:Cross-Linking Reagents / Q000737:chemistry; D005780:Gelatin / Q000737:chemistry*; D039823:Iridoids / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D009281:Naphthalenes / Q000302:isolation & purification*; D016062:Porosity; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*
chemical_list: C456587:Acid Orange II; D001391:Azo Compounds; D004396:Coloring Agents; D003432:Cross-Linking Reagents; D039823:Iridoids; D009281:Naphthalenes; D014874:Water Pollutants, Chemical; D005780:Gelatin; D048271:Chitosan; C007834:genipin
keywords: Adsorption; Desorption; Interpenetrating polymer networks; Porous