Abstract
The adsorptive removal capacities of highly available Turbinaria turbinata alga and its derived carbonaceous products (i.e. pyrolyzed, physically and chemically activated carbons) were investigated in this study. Several textural and chemical characterizations were performed on the alga and its activated carbons (ACs). Besides, kinetics and isotherms assays were performed and modeled in order to monitor the sorption capacities and dynamic behaviors.The main results showed that the raw Turbinaria biomass has a non porous structure. Then, after thermo-chemical treatments, a porous matrix starts to develop and the total pore volume drastically increased from 0.001cm3/g for the algal precursor (turb-raw) to 1.316cm3/g for its derived chemically AC (turb-P1). As well, the specific surface area improved from m2/g for (turb-raw) to 1307m2/g for (turb-P1). Consequently, the maximum sorption capacity went from 63mg/g for the algal biomass up to 411mg/g for the chemically ACs.Moreover, the removal rate was taken into consideration in order to set a more reliable and realistic approach to figure out the most efficient AC.Thus, based on those criteria, it was found that the chemically activated carbon “turb-P1” is the most efficient Turbinaria-derived sorbent to adsorb and remove methylene blue (MB) molecules from aqueous solutions with 169g of the dye using 1kg of raw alga (considering an AC production yield of 49%).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
