Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/13381
ชื่อเรื่อง: Adsorption of Silver (I) from Aqueous Solution Using Chitosan/Montmorillonite Composite Beads
ผู้แต่ง: Jintakosol T.
Nitayaphat W.
Keywords: Adsorbents
Chitin
Chitosan
Clay minerals
Composite materials
Desorption
Isotherms
Metal ions
Silver
Solutions
Adsorbent dosage
Adsorption and desorptions
Adsorption capacities
Adsorption kinetics
Chitosan solution
Equilibrium adsorption
Langmuir isotherm
Pseudo-second order model
Adsorption
วันที่เผยแพร่: 2016
บทคัดย่อ: Chitosan/montmorillonite (CTS-MMT) composite beads were used as adsorbents for the removal of silver ion (Ag+) from aqueous solution. Equilibrium adsorption was achieved within 150 min at 3% MMT of chitosan solution. The optimum pH value for Ag+ removal was found to be 6-7. The maximum adsorbent dosage for Ag+ removal was 5 g/L. Under above maximum conditions the Ag+ removal was 95.7%. The maximum adsorption capacities of CTS and CTS-MMT composite beads as obtained from Langmuir isotherm were found to be 38.46 and 43.48 mg/g, respectively. The adsorption kinetic agrees well with the pseudo second order model. The Ag+ desorption of CTS-MMT composite bead was 17.39% at pH=4. SEM/EDX images confirm that after adsorption the Ag+ were dispersed onto the composite bead surface. The adsorption and desorption experiment demonstrated that the CTS-MMT composite beads can be used as an effective adsorbents for removal of Ag+ from aqueous solution.
URI: https://ir.swu.ac.th/jspui/handle/123456789/13381
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84989820028&doi=10.1590%2f1980-5373-MR-2015-0738&partnerID=40&md5=15ae36f5d1afb0901e36e50167c7ccd3
ISSN: 15161439
Appears in Collections:Scopus 1983-2021

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