Lee, Agnes Yung Weng. (2017) Heavy Metal Divalent Ions (Cu2+, Zn2+, Cd2+) Removal by Zirconium-based Magnetic Sorbent. Masters thesis, UNIMAS.
![[img]](http://ir.unimas.my/style/images/fileicons/text.png) |
PDF (Please get the password by email to repository@unimas.my , or call ext: 082-583914/3942/3933)
Agnes Lee.pdf Restricted to Registered users only Download (1MB) |
Abstract
Uncontrollable discharge of heavy metals has adversely affected human beings and environment. In this research, zirconium-based magnetic sorbent was synthesized by co precipitation method and explored as a potential sorbent for removal of divalent metal ions; Cu2+, Zn2+, and Cd2+ from aqueous solution. The sorbent could easily be separated from aqueous solution under the influence of an external magnetic field due to their ferromagnetism property. The interaction characteristics between the ions and the sorbent were elucidated by instrumental analyses such as Fourier transform infrared (FT-IR) spectroscopy, particle size analyzer (PSA), scanning electron microscopic-energy dispersive X-ray spectroscopy (SEM-EDS), and Brunauer, Emmett, and Teller (BET) surface area analyzer. Uptake of the heavy metal ions showed a pH-dependent profile with maximum sorption at around pH 5. The sorption rate was increased with an increase in contact time and initial metal ion concentration which mostly found to have followed the postulate of pseudo second-order kinetic model. The validity of kinetic models applied in this study was evaluated by using a normalized standard deviation.
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | Thesis (M.A.) -- Universiti Malaysia Sarawak, 2017. |
| Uncontrolled Keywords: | Removal, heavy metals, magnetic sorbent, kinetic models, isotherm models, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, Postgraduate, research, Universiti Malaysia Sarawak. |
| Subjects: | T Technology > T Technology (General) T Technology > TP Chemical technology |
| Divisions: | Academic Faculties, Institutes and Centres > Faculty of Engineering Faculties, Institutes, Centres > Faculty of Engineering |
| Depositing User: | Gani |
| Date Deposited: | 31 Jul 2018 00:33 |
| Last Modified: | 27 Jun 2023 06:56 |
| URI: | http://ir.unimas.my/id/eprint/21013 |
Actions (For repository members only: login required)
 |
View Item |
