Rosalyza, Hasan and R. S. R., Mohd Zaki and H. D., Setiabudi and R., Jusoh and A. A., Jalil and M., Shokouhimehr (2022) Intensifed Pb(II) adsorption using functionalized KCC‑1 synthesized from rice husk ash in batch and column adsorption studies. Applied Nanoscience, 12 (11). pp. 1-12. ISSN 2190-5509 (Print); 2190-5517 (Online). (Published)
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Intensified Pb(II) adsorption using functionalized KCC-1 synthesized from rice husk ash in batch and column adsorption studies.pdf Download (1MB) | Preview |
Abstract
An attempt to investigate the feasibility of 3-aminopropyltriethoxysilane (3-APTES)-functionalized KCC-1 (NH2/KCC-1) prepared from rice husk ash (RHA) for Pb(II) removal was executed. An effective functionalization of fibrous silica nanospeheres (KCC-1) by NH3 was confirmed by FTIR analysis. The optimized condition of Pb(II) adsorption in the batch system was at an initial Pb(II) concentration (X1) of 307 mg/L, adsorbent dosage (X2) of 2.43 g/L, and time (X3) of 114 min, with the Pb(II) removal (Y) of 90.1% (predicted) and 91.2% (actual). NH2/KCC-1 can be regenerated by nitric acid (0.1 M) with insignificant decline of Pb(II) removal percentage (adsorption=91.2–67.3%, desorption=77.7–51.9%) during 5 cycles adsorption–desorption study. The examination of column adsorption study at a varying flow rate (1–3 mL/min) and bed height (10–20 cm) showed a good performance at a lower flow rate and higher bed height. Both Adam–Bohalt model and Thomas model displayed a good correlation with experimental data. However, Thomas model was more suitable due to the high correlation coefficient, R2=0.91–0.99. This study revealed the intensified Pb(II) adsorption using NH2/KCC-1 synthesized from RHA in batch and column adsorption studies.
| Item Type: | Article |
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| Uncontrolled Keywords: | KCC-1; Fibrous silica nanospheres; Pb(II) adsorption; Rice husk ash; Optimization |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Institute of Postgraduate Studies Faculty of Chemical and Process Engineering Technology |
| Depositing User: | Miss. Ratna Wilis Haryati Mustapa |
| Date Deposited: | 30 Nov 2022 09:13 |
| Last Modified: | 30 Nov 2022 09:13 |
| URI: | http://umpir.ump.edu.my/id/eprint/35801 |
| Download Statistic: | View Download Statistics |
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