Adsorption Studies of Arsenic(V) by CuO Nanoparticles Synthesized by Phyllanthus emblica Leaf-Extract-Fueled Solution Combustion Synthesis

Sadia Saif, Syed F. Adil, Mujeeb Khan, Mohammad Rafe Hatshan, Merajuddin Khan and Farzana Bashir
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Sadia Saif: Department of Environmental Science, Kinnaird College for Women, Lahore 54000, Pakistan
Syed F. Adil: Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Mujeeb Khan: Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Mohammad Rafe Hatshan: Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Merajuddin Khan: Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Farzana Bashir: Centre for Environmental Protection Studies, PCSIR Laboratories Complex, Lahore 54000, Pakistan

Sustainability, 2021, vol. 13, issue 4, 1-14

Abstract: In the present study, a simple and eco-friendly route for the synthesis of copper oxide nanoparticles (CuO NPs) using leaf extract of Phyllanthus emblica as fuel has been demonstrated, as P. emblica is a locally available abundant plant. The formation of the as-prepared CuO NPs was confirmed by using various techniques, such as UV–Vis absorption spectroscopy, cold field scanning electron microscopy (CF–SEM), energy dispersive X-ray analysis (EDX), dynamic light scattering (DLS), and X-ray photoelectron (XPS). The hydrodynamic size of the CuO NPs was found to be 80 nm, while the zeta potential of −28.6 mV was obtained. The elemental composition was confirmed by EDX analysis accompanied with elemental mapping, while the crystalline nature was substantiated by the XRD diffractogram. The as-synthesized CuO NPs were studied for their use as an adsorbent material for the removal of As(V) from water. It was confirmed that the CuO NPs effectively removed As(V) via adsorption, and the adsorption efficiency was found to be best at a higher pH. The maximum adsorption capacity of CuO for As(V) was found to be 1.17 mg/g calculated using the Langmuir equation.

Keywords: CuO; nanoparticles; green synthesis; arsenic; adsorption (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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