Syazwani Mahmad Puzi
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Syazwani Mahmad Puzi
Official Name
Syazwani, Mahmad Puzi
Alternative Name
Mahmad Puzi, Syazwani
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Scopus Author ID
57216696311

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Asam gelugur-based carbon aerogels for highly recyclable oils adsorption

2023-07 , Cheong Yi Xin , Siti Khalijah Mahmad Rozi , Monisha Devi Elan Solan , Syazwani Mahmad Puzi

Rapid development of the oil industries and improper oil management caused a huge amount of oil pollutant released into the water environment. Oil pollutant is toxic and may harm aquatic biodiversity. The present work highlights the facile preparation of carbon aerogels based from Asam Gelugur (CA@Ga) for oil remediation from aqueous. Analysis on the structure of CA@Ga using Fourier Transform Infrared Spectroscopy (FTIR), Energy Dispersive X-ray (EDX) and Scanning Electron Microscopy (SEM), confirmed the successful preparation of CA@Ga through hydrothermal carbonization. The main parameters affecting the adsorption of oil such as the sorption time, pH and mass of sorbent were screened and oil adsorption studies revealed that the optimum conditions were at contact time of 3 minutes, pH of solution at 7 and the adsorbent mass of 2 g with the highest adsorption capacity of 0.82 + 0.01 g/g. CA@Ga displayed a good stability towards thermal treatment and exhibited good adsorption ability towards several types of oil. Recyclability study depicts that CA@Ga could be regenerated by simple physical treatments and retained a high sorption after 10 cycles with adsorption capacity of 0.80 + 0.01 g/g. Therefore, the prepared CA@Ga has potential in application of oil recovery and environmental protection.

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Publication

Asam Gelugur-based carbon aerogels for highly recyclable oil adsorption

2023-07 , Cheong Yi Xin , Siti Khalijah Mahmad Rozi , Monisha Devi Elan Solan , Syazwani Mahmad Puzi

Rapid development of the oil industries and improper oil management causeda huge amount of oil pollutant released into the water environment. Oil pollutant is toxic and may harm aquatic biodiversity. The present work highlights the facile preparation of carbon aerogels basedfromAsam Gelugur (CA@Ga) for oil remediation from aqueous. Analysis on the structure of CA@Gausing Fourier Transform Infrared Spectroscopy (FTIR), Energy Dispersive X-ray (EDX) and Scanning Electron Microscopy (SEM), confirmed the successful preparation of CA@Ga through hydrothermal carbonization. The main parameters affecting the adsorption of oil such as the sorption time, pH and mass of sorbent were screened and oil adsorption studies revealed that the optimum conditions were at contact time of 3 minutes, pH of solution at 7 and the adsorbent mass of 2 g with the highest adsorption capacity of 0.82 +0.01 g/g.CA@Ga displayed a good stability towards thermal treatment and exhibited good adsorption ability towards several types of oil. Recyclability study depicts that CA@Ga could be regenerated by simple physical treatments and retaineda high sorption after 10 cycles with adsorption capacity of 0.80 +0.01 g/g. Therefore, the prepared CA@Ga has potential in application of oil recovery and environmental protection

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Effect of photodegradation on chemical characteristics and enzymatic digestibility of chicken feather keratin

2024-03-21 , Aziz F. , Zarina Zakaria , Syazwani Mahmad Puzi , Huzairy Hassan

The rapid development of poultry industry has correlated with increased production of keratin containing wastes that possessed complex morphology which difficult to degrade. UV irradiation pretreatment provide an initial stage of degradation before they are further degrade using fermentation process into ready to use protein. Untreated and treated with UV light chicken feathers morphology of fibers and cuticle cells were observed using SEM. A feather protein hydrolysate was produced by keratinolytic bacteria Bacillus subtilis under submerged fermentation. Keratinolytic kinetic is study using Michealis-Menten kinetics where Km value for treated chicken feathers with UV was 22.4591 M which is smaller compare to untreated chicken feathers, 42.3065 M. The smaller Km value shows tightly binding of keratinase and chicken feathers powder. Chicken feathers that were treated with UVC has the highest protein content about 3.19 mg/mL of protein while untreated chicken feathers only contains 2.29 mg/mL of protein.

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