Please use this identifier to cite or link to this item: https://doi.org/10.1021/ie049258e
Title: Preparing microgranules from waste polystyrene through a novel temperature- and nonsolvent-induced phase separation method for potential adsorbent
Authors: Wang, Z.
Bai, R. 
Issue Date: 16-Feb-2005
Source: Wang, Z., Bai, R. (2005-02-16). Preparing microgranules from waste polystyrene through a novel temperature- and nonsolvent-induced phase separation method for potential adsorbent. Industrial and Engineering Chemistry Research 44 (4) : 825-831. ScholarBank@NUS Repository. https://doi.org/10.1021/ie049258e
Abstract: Recycling post-consumer waste polystyrene (WPS) into useful high-value products is of great environmental and engineering interest. In this study, microgranules were prepared from WPS and were used as a potential adsorbent for heavy metal removal from aqueous solution. In comparison with the conventional approach preparing polymer particles from dilute polymer solutions, a new process that can use semidilute or concentrated polymer solutions to prepare microgranules was developed. The process employed a method of combined temperature- and nonsolvent-induced phase separation to prevent the possible aggregation of the polymer particles and, thus, made it possible to obtain microgranules from semidilute or concentrated polymer solutions. Depending on the concentration of the polymer solution, irregular and more porous or spherical and less porous microgranules were prepared. As a potential application, microgranules were coated with poly(acrylic acid) (PAA) and examined as an adsorbent for lead ion removal. It was found that the coated microgranules had good adsorption performance and fast adsorption kinetics in removing lead ions from aqueous solution. The work illustrates the great potential in reducing WPS from the solid waste stream and converting WPS into high-value microgranules that might have many applications as adsorbents in water and wastewater treatment or other industrial processes.
Source Title: Industrial and Engineering Chemistry Research
URI: http://scholarbank.nus.edu.sg/handle/10635/64466
ISSN: 08885885
DOI: 10.1021/ie049258e
Appears in Collections:Staff Publications

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

SCOPUSTM   
Citations

5
checked on Dec 5, 2017

WEB OF SCIENCETM
Citations

4
checked on Dec 5, 2017

Page view(s)

27
checked on Dec 11, 2017

Google ScholarTM

Check

Altmetric


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