Please use this identifier to cite or link to this item: https://doi.org/10.1021/la026490l
Title: Unusual adsorption properties of microporous titanosilicate ETS-10 toward heavy metal lead
Authors: Zhao, G.X.S. 
Lee, J.L.
Chia, P.A. 
Issue Date: 18-Mar-2003
Citation: Zhao, G.X.S., Lee, J.L., Chia, P.A. (2003-03-18). Unusual adsorption properties of microporous titanosilicate ETS-10 toward heavy metal lead. Langmuir 19 (6) : 1977-1979. ScholarBank@NUS Repository. https://doi.org/10.1021/la026490l
Abstract: Microporous titanosilicate ETS-10 was synthesized by using TiF4 as the Ti source and characterized by using X-ray diffraction, Fourier transform infrared and Raman spectroscopies, and nitrogen adsorption. The adsorption properties of heavy metal ion Pb2+ on the ETS-10 sample were studied by measuring the adsorption kinetics and equilibria using a batch-type method. It has been observed that the adsorption rate of Pb2+ on ETS-10 is extremely rapid: less than 5 s is required to attain maximum adsorption capacity in a 10 mmol/L solution with a batch factor of 200 mL/g. The kinetic data can be fitted very well by a pseudo-second-order model, whereas the equilibrium data are better fitted to the Langmuir isotherm than to the Freundlich isotherm. The maximum adsorption capacity of Pb2+ on ETS-10 as predicted by the Langmuir equation is 1.12 mmol/g. This is the highest adsorption capacity of Pb2+ on zeolites that has been observed so far.
Source Title: Langmuir
URI: http://scholarbank.nus.edu.sg/handle/10635/92462
ISSN: 07437463
DOI: 10.1021/la026490l
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

77
checked on Jun 17, 2018

WEB OF SCIENCETM
Citations

69
checked on Jun 5, 2018

Page view(s)

55
checked on May 11, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.