Modification of Carica papaya seeds with NaOH for copper removal from water

Shuhaimen, Muhammad Shahrain and Abdullah, Erna Normaya and Zubir, Aisyah and Shamsuri, Syamimi Sulfiza and Mohd Salim, Rosliza and Iqbal, Anwar and Mat Piah, Mohd Bijarimi and Ahmad, Mohammad Norazmi (2023) Modification of Carica papaya seeds with NaOH for copper removal from water. In: 3rd IKMPB Online Symposium 2023 - Innovation in Chemistry Towards Sustainable Development.

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Abstract

As people work to create a sustainable future, initiatives to improve the state of the environment have recently taken precedence. Due to the persistence of heavy metals in the environment and their nonbiodegradable nature, heavy metal contamination has become a global issue. In conjunction with the Sustainable Development Goals, this study proposes a green method of heavy metal removal by applying Carica papaya seeds (CPS) as an environmentally friendly and highly efficient adsorbent to remove copper (Cu) from the environment. To increase its potential in adsorbing copper(II) ions, CPS were treated with sodium hydroxide (NaOH). The effects of the adsorbent mass, pH, initial metal solution concentrations, and contact time were investigated in batch experiments. The optimum pH and contact time for CPS are pH 3–5 and 120 min, respectively, and the highest percentage of removal achieved is 82%. The adsorbent was characterized with scanning electron microscopy (SEM) and Fourier transform-infrared (FT-IR) spectroscopy to analyze the Cu adsorption process. In conclusion, the chemically treated CPS can be utilized as a potential bio-adsorbent for Cu removal from aqueous solutions.

Item Type:	Proceeding Paper (Invited Papers)
Uncontrolled Keywords:	Carica papaya seeds (CPS); copper (Cu); green adsorbent; heavy metals; water treatment
Subjects:	Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Biotechnology Kulliyyah of Science > Department of Chemistry
Depositing User:	Dr Mohammad Norazmi Ahmad
Date Deposited:	11 Jul 2023 11:39
Last Modified:	03 Jan 2024 14:14
URI:	http://irep.iium.edu.my/id/eprint/105426

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