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International Conference on

Recent Trends in Environmental Sustainability

ESCON22/NMsB/14
Sequestration of congo red and navy-blue dyes from contaminated water using corn
derived nanocomposites

1
Umer Ghani, Muhammad Mohsin Iqbal , Dr. Muhammad Imran 1*
1 Department of Environmental Sciences, COMSATS University Islamabad, Vehari- Campus,
61100 Pakistan
Correspondence: imranrb@cuivehari.edu.pk

Abstract
Water is essential for all the living organisms. The water quality is being degraded with
excessive application of pesticides, dyes, insecticides, and fertilizers. The disposal of industrial
effluents especially dyes containing effluents into water bodies without treatment is the major
cause of water quality degradation. There is a need to treat the effluents with the environment
friendly materials. Present research aims at using low cost, and unexplored corn offals (CO),
corn leaves (CL) and their nanocomposites with zinc oxide and magnetite nanoparticles
(CO/ZnO, CO/MNPs, CL/ZnO and CL/MNPs) for batch scale removal of Navy-blue dye (NB)
and Congo red dye (CR) from contaminated water. The effects of adsorbents dose (1-4 mg/L),
initial dyes concentration (25-200 mg/L), pH (2-8), and contact time (0-180 mint) were
evaluated on dyes sequestration from water. The results reveal that dyes adsorption order was
CL/ZnO > CL>CL/MNPs. The kinetic and equilibrium models were also tested to validate the
experimental adsorption data.

Keywords: sequestration; pesticides; fertilizers; dyes

Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus

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