Ab Aziz, Nur Azrie Hizad and Md Ali, Umi Fazara and Ahmad, Anis Atikah and Mohamed Dzahir, Mohd Irfan Hatim and Khamidun, Mohd Hairul and Abdullah, Muhammad Faiq (2023) Non-functionalized oil palm waste-derived reduced graphene oxide for methylene blue removal: Isotherm, kinetics, thermodynamics, and mass transfer mechanism. Arabian Journal of Chemistry.
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Abstract
The discharge of colored effluents from industries is one of the significant sources of water pollution. Therefore, there is a growing demand for efficient and low-cost treatment methods. An adsorption process with reduced graphene oxide (rGO) synthesized using a novel double car¬bonization and oxidation method from the natural precursor of oil palm empty fruit bunch (OPEFB) as adsorbent is a promising approach for addressing the problem. In this study, OPEFB biochar was mixed with ferrocene with a ratio of 5:1 (m/m) and oxidized under nitrogen flow at a temperature of 300 °C for 20 min, which resulted in 75.8 wt% of yield. The potential of the synthe¬sized rGO as an effective adsorbent for dye removal from water and wastewater was explored using methylene blue (MB) as a model. Several factors were investigated, including adsorbent dosage, ini¬tial concentration, contact time, and pH, to obtain the optimum adsorption condition through batch studies. The physical and chemical characteristics of the rGO in terms of functional groups,
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Reduced graphene oxide; Oil palm waste; Cationic dye; Adsorption; Thermodynamics; Mass transfer mechanism |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Building and Construction Engineering |
| Depositing User: | Mr. Mohamad Zulkhibri Rahmad |
| Date Deposited: | 14 Feb 2023 08:28 |
| Last Modified: | 14 Feb 2023 08:28 |
| URI: | http://eprints.uthm.edu.my/id/eprint/8304 |
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