Silica-based fly ash (FA) received from the National Thermal Power Corporation (NTPC), India has been utilized for determining its dye-adsorption capacity. The dye adsorption using the NTPC-FA has been examined by varying the initial methylene blue dye concentration (7.5-150 lM) and initial solution-pH (2.5-11.5). The dye-adsorption capacity of NTPC-FA has been found to be 0.43 mg/g. To increase the dye-adsorption capacity, the NTPC-FA is subjected to the hydrothermal treatment and typical washing cycles without and with the coating of sol-gel derived anatase-titania. The hydrothermally treated NTPC-FA and hydrogen titanate-silica composite thus obtained exhibit dye-adsorption capacity higher than that of NTPC-FA. *satyajit_shukla@niist.res.in
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.