Title: Synthesis and characterisation of nano-adsorbents from chemically modified Parthenium hysterophorus for the treatment of industrial wastewater

Authors: Anu Gupta; Pardeep Rao

Addresses: Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India ' Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India

Abstract: Chemical modification of locally grown weed Parthenium hysterophorus (PH) has been carried out to increase the adsorption capacity, as well as the capacity to remove the soluble organic compounds and colour. Four different samples were prepared by treatment with two acids: a) H₂SO₄; b) HCl, and two bases; c) KOH; and d) NaOH. This nano-adsorbent was then characterised using FTIR, SEM, and XRD to identify the functional groups as well as surface morphology. The application of this nano-adsorbent has been explored for the removal of dye from textile industry wastewater. Batch Experiments with different samples have been performed to study the removal efficiency of synthesised nano-adsorbent. The effect of different variables like (nano-adsorbent dosage, dye concentration, pH of wastewater, and contact time was studied to optimise the parameters. The KOH-modified nano-adsorbent has shown the best removal efficiency at an optimum set of parameters.

Keywords: nano-adsorbent; dye removal; adsorption; wastewater; water treatment.

DOI: 10.1504/IJNBM.2024.137697

International Journal of Nano and Biomaterials, 2024 Vol.10 No.3, pp.204 - 220

Received: 25 Aug 2023
Accepted: 11 Dec 2023
Published online: 02 Apr 2024 *

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