Abstract:The study focused on determining the effect of acidic and basic cold activation on hydrochar (HC) for the removal of methyl orange (MO). HC was prepared by hawthorn seeds (HS) under hydrothermal carbonization. HC was cold-activated with HCl and NaOH, respectively, and they were grafted with aminopropyltriethoxysilane (APTES) and protonated to obtain AHC-N + (acid-activated and modified HC) and BHC-N + (base-activated and modified HC) to determine the effect of acidic and basic activation. They were characteriz… Show more
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