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International Conference on

Recent Trends in Environmental Sustainability

ESCON22/NMsB/11
Effective sequestration of cresol red dye from wastewater with corn leaves biomass and
its nanocomposites with zinc oxide and magnetite

1
1
1*
1,
Muhammad Imran , Muhammad Mohsin Iqbal , Muhammad Amjad Behzad Murtaza ,
1
Muhammad Asif Naeem
1 Department of Environmental Sciences, COMSATS University Islamabad, Vehari- Campus,
61100 Pakistan
Correspondence: imranrb@cuivehari.edu.pk
Abstract
Water is a basic need for all the living organisms to sustain life. United Nations estimates show
that about 800 million people have not access to clean water and this population is increasing
continuously. Water contamination with dye is a problem of high concern for the environment
and human health. In the textile industries, Cresol red dye (CR) is commonly used for the
nylon, cotton silk, polyacrylonitrile and wool. The dyes are very problematic due to their
complex structure and hence it’s very important to remediate dyes contaminated water. Current
study is designed to assess the adsorption potential of Corn leaves (CL) and its nano
nanocomposites with zinc oxide (CL/ZnO) and magnetite nanoparticles (CL/MNPs) for batch
scale removal of CR. To obtain the objectives, the impact of different process parameters i.e.,
adsorbent dose (1 – 4 g/L), initial CR concentration (25 - 200 mg/L), pH (2 - 8), and contact
time (0 - 180 min) was evaluated. The revealed CR removal by CL, CL/ZnO, and CL/MNPs
was 65.3-50.8%, 71.6-56.8%, and 51.2-42.2%, respectively when the initial level of CR was
varied from 25-200 mg/L. However, the removal CR removal changed from 38.6-60.8%, 50.8-
63.9%, and 36.5-50.0% with Cl, CL/ZnO, and CL/MNPs, respectively when dosage was
changed 1-4 g/L. Freundlich model best represented the experimental adsorption at equilibrium
nd
while the kinetic experimental adsorption well fitted with pseudo 2 order kinetic model. The
comparison of the adsorbents used in the present study for CR removal with literature shows
that the proposed materials are more efficient with greater adsorption capacity. Hence, it is
suggested that the composites of nanoparticles should be used for the remediation of CR and
other dyes.
Keywords: CR dye; composites; adsorbents; removal

Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus

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