title: Facile synthesis of monodisperse functional magnetic dialdehyde starch nano-composite and used for highly effective recovery of Hg(II).
abstract: By covalently linking dialdehyde starch and amine functionalized Fe3O4 nanoparticle, and modifying with aminothiourea functional group, the novel monodisperse nano-composite has been successfully synthesized without any toxic crosslinking agent. The resulting nano-composite was characterized by means of the Fourier transform infrared spectra (FT-IR), transmission electron microscope (TEM), X-ray diffraction (XRD), elemental analysis and vibrating sample magnetometer (VSM). As the new kind of low-cost and environmentally friendly adsorbent with the excellent monodispersity in aqueous phase, the obtained nano-composite has shown not only the good adsorption capacity for Hg(II) on high initial concentration, but also the strong removal ability on low concentration. Moreover, the unique selectivity for Hg(II) among the mixed metal ions solution and good regeneration performance of nano-composite has also been demonstrated by batch experiments.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, College of Resources and Environment, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, College of Resources and Environment, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China. Electronic address: zhangyun@lzu.edu.cn.
authors.forename: Yun
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, College of Resources and Environment, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Chen
authors.initials: C
authors.lastname: Hou
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, College of Resources and Environment, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Qi
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, College of Resources and Environment, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Xinghua
authors.initials: X
authors.lastname: He
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, College of Resources and Environment, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Li
mesh_terms: D000327:Adsorption; D007477:Ions; D058185:Magnetite Nanoparticles / Q000737:chemistry*; D008628:Mercury / Q000302:isolation & purification*; D046529:Microscopy, Electron, Transmission; D008962:Models, Theoretical; D053761:Nanocomposites / Q000737:chemistry*; D012996:Solutions; D017550:Spectroscopy, Fourier Transform Infrared; D013213:Starch / Q000031:analogs & derivatives* / Q000737:chemistry; D013499:Surface Properties; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D014961:X-Ray Diffraction
chemical_list: D007477:Ions; D058185:Magnetite Nanoparticles; D012996:Solutions; D014874:Water Pollutants, Chemical; D013213:Starch; C012880:dialdehyde starch; D008628:Mercury
keywords: Adsorption; Dialdehyde starch; Hg(II); Magnetic; Nano-composite