@conference{
author = "Karić, Nataša and Maletić, Marina and Živojinović, Sara and Vukčević, Marija and Milošević, Milena and Trivunac, Katarina and Perić Grujić, Aleksandra",
year = "2023",
abstract = "Fly ash (FA) is an industrial waste material generated during coal combustion in thermal
power plants. In order to reuse this kind of industrial waste, and at the same time to reduce its
quantity, fly ash was used as a cheap material for the preparation of efficient adsorbents for the
removal of selected dyes from water. For that purpose, different modification methods were used to
obtain alkali-activated fly ash samples. The success of the modification process and characterization
of the unmodified and modified materials was monitored by Fourier transform infrared spectroscopy,
and scanning electron microscopy/energy dispersive spectroscopy. The adsorption properties of
examined samples were studied through the adsorption of methylene blue, crystal violet, alizarin red,
and methyl orange. All samples showed the highest adsorption efficiency for crystal violet removal,
while the sample modified with a combination of NaOH, Na2SiO3, and diatomaceous earth
(FA/geopolymer) was the most efficient adsorbent for all selected dyes. Therefore, the influence of
initial pH value and contact time on adsorption was examined for the adsorption of crystal violet
onto FA/geopolymer. It was found that alkaline modification improves the adsorption characteristics
of fly ash making it a promising candidate to solve the problem of colored wastewater.",
publisher = "Belgrade : The Academy of Applied Technical Studies "Belgrade"",
journal = "Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023",
title = "ALKALI MODIFICATION OF FLY ASH FOR ADSORPTION OF SELECTED DYES",
pages = "70-66",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6997"
}