Highly efficient and selective adsorption of In3+ on pristine Zn/Al layered double hydroxide (Zn/Al-LDH) from aqueous solutions

Barnabas, Mary Jenisha, Parambadath, Surendran, Mathew, Aneesh, Park, Sung Soo, Vinu, Ajayan and Ha, Chang-Sik (2016) Highly efficient and selective adsorption of In3+ on pristine Zn/Al layered double hydroxide (Zn/Al-LDH) from aqueous solutions. Journal of Solid State Chemistry, 233 133-142. doi:10.1016/j.jssc.2015.10.001


Author Barnabas, Mary Jenisha
Parambadath, Surendran
Mathew, Aneesh
Park, Sung Soo
Vinu, Ajayan
Ha, Chang-Sik
Title Highly efficient and selective adsorption of In3+ on pristine Zn/Al layered double hydroxide (Zn/Al-LDH) from aqueous solutions
Formatted title
Highly efficient and selective adsorption of In3+ on pristine Zn/Al layered double hydroxide (Zn/Al-LDH) from aqueous solutions
Journal name Journal of Solid State Chemistry   Check publisher's open access policy
ISSN 1095-726X
0022-4596
Publication date 2016-01-01
Year available 2015
Sub-type Article (original research)
DOI 10.1016/j.jssc.2015.10.001
Open Access Status Not Open Access
Volume 233
Start page 133
End page 142
Total pages 10
Place of publication Maryland Heights, MO United States
Publisher Academic Press
Collection year 2016
Language eng
Formatted abstract
A pristine Zn/Al-layered double hydroxide (Zn/Al-LDH) showed excellent adsorption ability and selectivity towards In3+ ions from aqueous solutions. The adsorption behaviour as a function of the contact time, solution pH, ionic strength, and amount of adsorbent under ambient conditions revealed a strong dependency on the pH and ionic strength over In3+ intake. The structure and properties of Zn/Al-LDH and In3+ adsorbed Zn/Al-LDH (In–Zn/Al-LDH) were examined carefully by X-ray diffraction, Fourier transform infrared spectroscopy, N2-sorption/desorption, UV–vis spectroscopy, and X-ray photoelectron spectroscopy. The adsorbent had a sufficient number of active sites that were responsible for the In3+ adsorption and quite stable even after the adsorption process. The selective adsorption of In3+ on Zn/Al-LDH was also observed even from a mixture containing competing ions, such as Mn2+, Co2+, Ni2+, Cd2+, Pb2+, and Cu2+. The adsorption experiments showed that Zn/Al-LDH is a promising material for the pre-concentration and selective removal of In3+ from large volumes of aqueous solutions.
Keyword Zn/Al-LDH
Indium
Metal adsorption
Separation and pre-concentration
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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