Azduwin Khasri
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Preferred name
Azduwin Khasri
Official Name
Azduwin, Khasri
Alternative Name
Khasri, Azduwin
Azduwin, Y. K.
Main Affiliation
Scopus Author ID
55993350600
Researcher ID
K-8421-2019

Research Output
Now showing 1 - 3 of 3
  • Publication
    Adsorption of basic green 4 onto gasified Glyricidia sepium woodchip based activated carbon: optimization, characterization, batch and column study
    (Scientific Scholar, 2020)
    Anis Atikah Ahmad
    ;
    Azam Taufik Mohd Din
    ;
    Nasehir Khan EM Yahaya
    ;
    Azduwin Khasri
    ;
    Mohd Azmier Ahmad
    The abundance of gasification char residues which contributed to solid waste management problem is one of the major concerns in biomass gasification industry. This study focuses on synthesizing gasified Glyricidia sepium woodchip based activated carbon (GGSWAC) for the removal of basic green 4 (BG4) dye, evaluating the GGSWAC physicochemical properties and assessing the BG4 adsorption performance in batch and fixed-bed column systems. The optimal conditions of GGSWAC synthesis were at radiation power, time, and impregnation ratio (IR) of 616 W, 1 min and 1.93 g/g, respectively. The surface area (SBET) and total pore volume (TPV) of GGSWAC were 633.30 m2/g and 0.34 cm3/g, respectively. The Fritz–Schlünder best fitted to the experimental data at all temperatures in the isothermal studies, indicating a monolayer adsorption. The kinetic study showed that BG4 adsorption followed Avrami kinetic model. Based on thermodynamic parameters, the adsorption of BG4 dye onto GGSWAC was an endothermic and spontaneous process. In continuous operation, the Thomas and Yoon–Nelson models successfully predicted BG4 adsorption onto GGSWAC. The low production cost of 0.54 USD/kg showed that GGSWAC is economically feasible for commercialization.
  • Publication
    Process optimization of microwave assisted KOH-activated carbon derived from sugarcane bagasse using central composite design
    (AIP Publishing, 2023)
    Nor Azmiera Mat Rasul
    ;
    Azduwin Khasri
    ;
    Mohd Azmier Ahmad
    In this work, the process optimization for the synthesis of activated carbon (AC) derived from sugarcane bagasse via microwave assisted potassium hydroxide (KOH) activation for methylene blue (MB) dye adsorption was employed using Central Composite Design. Characterization of AC using Brunauer Emmett and Teller (BET) revealed specific surface area of 307.2 m2/g. Three variables namely power, time and char/KOH ratio were chosen for the process optimization and MB removal percentage as the investigated response. The optimum preparation conditions were found occurred at power of 200 W, time of 2 min and char/KOH ratio of 0.5, resulting in the removal of 94.30% MB. The sugarcane bagasse-based AC produced shows the great potential to be utilized as a raw material for the production of AC with good adsorption properties.
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