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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
Citation: 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.
Appears in Collections:Master's Theses (Open)

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