NDLI: Removal of transition metal ions from aqueous solution using dialdehyde phenylhydrazine starch as adsorbent.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Wang, Rou Liu, Jun-Tao Li, Chun-Yang Li, Rong
Description	Author Affiliation: Wang R ( The Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China E-mail: liyirong@lzu.edu.cn.); Liu JT ( The Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China E-mail: liyirong@lzu.edu.cn.); Li CY ( The Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China E-mail: liyirong@lzu.edu.cn.); Li R ( The Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China E-mail: liyirong@lzu.edu.cn.)
Abstract	Dialdehyde phenylhydrazine starch (DASPH) was synthesized by reacting dialdehyde starch (DAS) with phenylhydrazine (PH) and it was characterized by Brunauer-Emmett-Teller (BET), scanning electron microscope, Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) techniques. FT-IR of DASPH revealed the incorporation of the Schiff Base group (C = N) group and the disappearance of the C = O (carbonyl) group. The adsorption behaviors of transition metal ions (Cd(2+), Zn(2+), Pb(2+) and Cu(2+)) were investigated as a function of pH and adsorption time. The results indicated that pH 5.0 and 120 min were the optimal conditions. Experimental results revealed that the maximum adsorption capacity of DASPH for the four transition metal ions was as follows: Cd(2+) (4.9 mmol/g) > Zn(2+) (3.3 mmol/g) >Pb(2+) (1.7 mmol/g) >Cu(2+) (0.83 mmol/g). In addition, the regeneration method of DASPH was also studied.
File Format	HTM / HTML
ISSN	02731223
Issue Number	3
Volume Number	69
e-ISSN	19969732
Journal	Water Science & Technology
Language	English
Publisher	IWA Publishing
Publisher Date	2014-01-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Discipline Hydrology Metals, Heavy Isolation & Purification Starch Analogs & Derivatives Water Pollutants, Chemical Adsorption Hydrogen-ion Concentration Chemical Synthesis Time Factors Evaluation Studies Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Environmental Engineering Water Science and Technology

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