Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/14947
Title: Study of aminated polypyrrole-coated granules for humic acid and bovine serum albumin adsorption
Authors: WANG LEI
Keywords: PPy; APPy; Humic Acids; Bovine Serum Albumin (BSA); Isoelectric Point (IEP).
Issue Date: 27-Oct-2005
Source: WANG LEI (2005-10-27). Study of aminated polypyrrole-coated granules for humic acid and bovine serum albumin adsorption. ScholarBank@NUS Repository.
Abstract: Adsorbents with positive surface charges have been prepared with polypyrrole-coated granules and studied for the removal of negatively charged compounds in recently years. In this project, surface-aminated PPy-coated granules are studied to develop a more effective adsorbent. The adsorption performances of PPy-coated and APPy-coated granules are evaluated for the removal of humic acids and the separation of protein. Adsorptions of humic acids by PPy-coated and APPy-coated granules are conducted at different pH, ionic strengths and initial concentrations of humic acids. APPy-coated granules are found to be more effective than PPy-coated granules in humic acid adsorption under the same adsorption conditions. In the BSA adsorption, the maximum adsorption amount was achieved at the isoelectric point of BSA for both PPy-coated and APPy-coated granules, and APPy-coated granules showed better adsorption performance than PPy-coated granules, especially when pH value was higher than 4.9. Other factors (IS, agitation speed and temperature) are also studied.
URI: http://scholarbank.nus.edu.sg/handle/10635/14947
Appears in Collections:Master's Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
MENG_THESIS_WANG LEI_CHEMBMENG.PDF6.05 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

292
checked on Dec 11, 2017

Download(s)

236
checked on Dec 11, 2017

Google ScholarTM

Check


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