title: Preparation and adsorption properties of dialdehyde 8-aminoquinoline starch.
abstract: Dialdehyde 8-aminoquinoline starch (DASQA) was synthesized by the reaction of dialdehyde starch (DAS) and 8-aminoquinoline and was used to adsorb various ions from aqueous solution. DASQA was characterized by Fourier transform infrared (FT-IR) spectra, thermogravimetric analysis, X-ray diffraction analysis. The adsorption properties of the polymer for Pb(2+), Cu(2+), Cd(2+), Ni(2+), and Zn(2+) were investigated. The result of the experiment reveals that the adsorption for Cd(2+) and Zn(2+)were approximately 2.51 mmol/g, 2.17 mmol/g, followed by Pb(2+) 1.93 mmol/g, Ni(2+) 1.66 mmol/g, Cu(2+) 1.19 mmol/g. Furthermore, the kinetic experiments indicated that the adsorption of DASQA for the above metal ions achieved equilibrium within 2 h. Therefore, DASQA is an effective adsorbent for the removal of different heavy metal ions from industrial waste solutions.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
authors.forename: Wen
authors.initials: W
authors.lastname: Ding
authors.forename: Shen-yong
authors.initials: SY
authors.lastname: Zhai
authors.forename: Jun-tao
authors.initials: JT
authors.lastname: Liu
authors.forename: Rou
authors.initials: R
authors.lastname: Wang
authors.forename: Rong
authors.initials: R
authors.lastname: Li
mesh_terms: D000327:Adsorption; D000634:Aminoquinolines / Q000138:chemical synthesis* / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007477:Ions; D007700:Kinetics; D017550:Spectroscopy, Fourier Transform Infrared; D013213:Starch / Q000138:chemical synthesis* / Q000737:chemistry; D013696:Temperature; D013818:Thermogravimetry; D013997:Time Factors; D014961:X-Ray Diffraction
chemical_list: D000634:Aminoquinolines; D007477:Ions; D013213:Starch; C080436:8-aminoquinoline