Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Crosslinked polyDADMAC gels as highly selective and reusable arsenate binding materials
Date
2015-02-15
Author
Pirgalioglu, Saltuk
Ozbelge, Tulay A.
Özbelge, Hilmi Önder
Bicak, Niyazi
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
158
views
0
downloads
Cite This
High porosity cationic hydrogels synthesized via crosslinking co-polymerization of diallyldimethylammonium chloride (DADMAC) with N,N'-tetraallylpiperaziniumdichloride (TAP) showed high affinity towards arsenate anions over a wide pH range within notably short periods. Batch tests indicated that poly(DADMAC) hydrogels removed 99% of the arsenate anions from aqueous solutions at pH 6-10 and exhibited a maximum arsenic removal capacity of 0.12 g arsenic per gram of hydrogel. DADMAC hydrogels performed well at various pH levels after a short contact time (i.e., 10 min). Evidence of the ion exchange mechanism was based on experiments with solutions containing competing chloride and sulfate ions. An "intra-particle diffusion model" was proposed for the kinetics of arsenic removal. This gel was determined to be a good candidate for use in practice due to its easy regeneration either by treating with a 8.24 g/L of NaCl solution or by reducing the pH of the medium to below 1.0.
Subject Keywords
Hydrogel
,
Diallyldimethylammonium chloride (DADMAC)
,
Arsenic(V); N,N '-tetraallylpiperaziniumdichloride (TAP)
,
Arsenic removal
,
Lon exchange
URI
https://hdl.handle.net/11511/56556
Journal
CHEMICAL ENGINEERING JOURNAL
DOI
https://doi.org/10.1016/j.cej.2014.10.015
Collections
Graduate School of Natural and Applied Sciences, Article
Suggestions
OpenMETU
Core
Arsenic speciation in fish by HPLC-ICP-MS
Eroğlu Özcan, Şefika; Ataman, Osman Yavuz; Department of Chemistry (2010)
Arsenic speciation in fish samples on the market was performed using isocratic elution with cation exchange column high performance liquid chromatography (HPLC) with inductively coupled plasma mass spectrometry (ICP-MS) detection. Total As concentrations were found by ICP-MS using samples digested by nitric acid-hydrogen peroxide solution using microwave oven digestion; the results were in the range of 1.15-12.6 µg/g. Separation of organic arsenicals, namely arsenobetaine (AB), dimethylarsinic acid (DMA) an...
Speciation of Arsenic in Fish by High-Performance Liquid Chromatography-Inductively Coupled Plasma-Mass Spectrometry
Ozcan, Sefika; BAKIRDERE, Sezgin; Ataman, Osman Yavuz (2016-01-01)
Arsenic speciation in fish was performed using isocratic elution with cation exchange column high-performance liquid chromatography and inductively coupled plasma-mass spectrometry detection. The separation of arsenobetaine and dimethylarsinic acid was performed in 12 min. DOLT-4 dogfish liver and NIST RM-50 albacore tuna certified reference materials were used to evaluate the accuracy for the determination of total arsenic in fish. In addition, reference materials were analyzed for arsenobetaine and dimeth...
Controlled release of vancomycin from biodegradable microcapsules
Ozalp, Y; Ozdemir, N; Kocagoz, S; Hasırcı, Vasıf Nejat (2001-01-01)
Poly D,L-lactic acid (PLA) and its copolymers with glycolide PLGA 90:10 and 70:30 were polymerized under various conditions to yield polymers in the molecular weight range 12 000-40 000 daltons, as determined by gel permeation chromatography. Vancomycin hydrochloride was the hydrophilic drug of choice for the treatment of methicillin resistant Staphyloccoccal infections. It was microencapsulated in the synthesized polymers using water-oil-water (w/o/w) double emulsion and solvent evaporation. The influence ...
Micelles As Delivery System for Cancer Treatment
Keskin, Dilek; Tezcaner, Ayşen (2017-01-01)
Micelles are nanoparticles formed by the self-assembly of amphiphilic block copolymers in certain solvents above concentrations called critical micelle concentration (CMC). Micelles are used in different fields like food, cosmetics, medicine, etc. These nanosized delivery systems are under spotlight in the recent years with new achievements in terms of their in vivo stability, ability to protect entrapped drug, release kinetics, ease of cellular penetration and thereby increased therapeutic efficacy. Drug l...
Covalent immobilization of glucose isomerase on poly(2-hydoxyethyl methacrylate) particles
Yıldız, Ümit Hakan; Hasırcı, Nesrin; Department of Chemistry (2004)
In this study, poly (2-hydroxyethyl methacrylate), P(HEMA), particles were prepared by suspension polymerization of the monomer 2-hydroxyethyl methacrylate with addition of ethylene glycol dimethyacrylate, EGDMA, as cross linker. Glucose isomerase, GI, enzyme was covalently immobilized on the prepared P(HEMA) particles after activation of the particles with cyanuric chloride. The activities of the free and immobilized enzymes were measured with Ethanol-Carbazole method. The immobilization of GI on P(HEMA) p...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
S. Pirgalioglu, T. A. Ozbelge, H. Ö. Özbelge, and N. Bicak, “Crosslinked polyDADMAC gels as highly selective and reusable arsenate binding materials,”
CHEMICAL ENGINEERING JOURNAL
, pp. 607–615, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56556.