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Adsorption Of Anionic And Cationic Dyes On Biochars, Produced By Hydrothermalcarbonization Of Waste Biomass: Effect Of Surface Functionalization And Ionicstrength, Ezgi̇ Çağlar, Yusuf Osman Donar, Ali̇ Sinağ, İbrahi̇m Bi̇roğul, Selva Bi̇lge, Kivanç Aydincak, Oleksii Pliekhov
Adsorption Of Anionic And Cationic Dyes On Biochars, Produced By Hydrothermalcarbonization Of Waste Biomass: Effect Of Surface Functionalization And Ionicstrength, Ezgi̇ Çağlar, Yusuf Osman Donar, Ali̇ Sinağ, İbrahi̇m Bi̇roğul, Selva Bi̇lge, Kivanç Aydincak, Oleksii Pliekhov
Turkish Journal of Chemistry
In this work, surface-functionalization agents and various salts as auxiliaries were used to improve the adsorption capacity of biochars produced via hydrothermal carbonization of glucose, cellulose, and hazelnut shell. The effect of surface functionalization with different acids and bases as well as neutral salts on the adsorption of methylene blue and methyl orange was investigated using Boehm titration, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy techniques. Surface functionalization of biochars leads to an increase in the number of oxygen-containing functional groups on the surface, thus increasing the adsorption capacity. To probe the influence of ionic strength on the adsorption …