Modification of carica papaya seeds with naoh for copper removal from water

Muhammad Shahrain, Shuhaimen and Erna Normaya, Abdullah and Aisyah, Zubir and Syamimi Sulfiza, Shamsuri and Rosliza, Mohd Salim and Anwar, Iqbal and Mohd Bijarimi, Mat Piah and Mohammad Norazmi, Ahmad (2023) Modification of carica papaya seeds with naoh for copper removal from water. In: Malaysian Journal of Chemistry; 3rd IKMPB Online Symposium 2023 - Innovation in Chemistry Towards Sustainable Development , 2023 , Online. pp. 431-439., 25 (3). ISSN 1511-2292

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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:	Conference or Workshop Item (Paper)
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Carica papaya seeds (CPS); Copper (Cu); Green adsorbent; Heavy metals; Water treatment
Subjects:	Q Science > QD Chemistry T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology
Faculty/Division:	College of Engineering Faculty of Chemical and Process Engineering Technology
Depositing User:	Mr Muhamad Firdaus Janih@Jaini
Date Deposited:	06 Nov 2023 04:06
Last Modified:	06 Nov 2023 04:06
URI:	http://umpir.ump.edu.my/id/eprint/38697
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