Gan Wei Chee, Wei Chee (2021) Synthesis Of Porous Cellulose Beads Intercalated With Calcium Carbonate Nanoparticles From Sodium Hydroxide/Urea Solution For Dye Adsorption. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Kimia. (Submitted)
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Abstract
Dyes have become widely used in the textile industry over the last few decadesand generates 200,000 tonnes of dye waste annually. Considering the situation, the adsorption process by using biodegradable alpha-cellulose (α-cellulose) is chosen for removing dye from wastewater due to its economic feasibility and absence of secondary pollution. However, a low degree of substitution occurs since this effect of α-cellulose's supramolecular structure is less reachable to reagents. Thus, the goals of this study are to synthesise and characterise porous cellulose beads (PCBs) for methylene blue (MB) dye removal, and to study the effects of calcium carbonates (CaCO3) nanoparticles incorporated on PCBs properties and MB dye removal. In this study, PCBs with various amounts of CaCO3 nanoparticles (0.01 wt%, 0.03 wt% and 0.05wt%) as green-based adsorbents were successfully fabricated. When the incorporation of 0.05 wt% of CaCO3 nanoparticles on PCBs, the increment of maximum removal efficiency (R) of MB from 88.12% to 97.04% at the adsorbent dosage of 0.06 g and equilibrium time of 3 hr. The experimental data of adsorption kinetic studies on MB using PCBs samples were imitated by pseudo-second-order, with R2 values of higher than 0.99, demonstrating that the adsorption process is governed by chemisorption. The maximum adsorption capacity of PCBs with 0.05 wt% of CaCO3 nanoparticles loading determined by pseudo-second-order was 4.91 mg/g. As a result, the findings of this study resulted in a simple and effective method for producing PCBs with CaCO3 nanoparticles loading.
| Item Type: | Monograph (Project Report) |
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| Subjects: | T Technology T Technology > TP Chemical Technology |
| Divisions: | Kampus Kejuruteraan (Engineering Campus) > Pusat Pengajian Kejuruteraan Kimia (School of Chemical Engineering) > Monograph |
| Depositing User: | Mr Engku Shahidil Engku Ab Rahman |
| Date Deposited: | 15 Sep 2022 09:08 |
| Last Modified: | 15 Sep 2022 09:08 |
| URI: | http://eprints.usm.my/id/eprint/54739 |
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