| Title | Tuning cationic/anionic dyes sorption from aqueous solution onto green algal biomass for biohydrogen production |
|---|---|
| ID_Doc | 10944 |
| Authors | Elgarahy, AM; Maged, A; Elwakeel, KZ; El-Gohary, F; El-Qelish, M |
| Title | Tuning cationic/anionic dyes sorption from aqueous solution onto green algal biomass for biohydrogen production |
| Year | 2023 |
| Published | |
| Abstract | Global water security and energy demands associated with uncontrollable population growth and rapid indus-trial progress are one of the utmost serious needs dangerously confronting humanity. On account of waste as a wealth strategy; a multifunctional eco-friendly sorbent (MGAP) from green alga was prepared successfully for remediation of cationic/anionic organic dyes and biohydrogen production. The structural and morphological properties of sorbent were systematically scrutinized by a variety of spectral analyses. The loading capacity of MGAP towards rhodamine B (RhB) and methyl orange (MO) dyes was inclusivity inspected under variable experimental conditions. The adsorption kinetics of both dyes onto MGAP was in good agreement with pseudo -second-order theory, whereas adsorption isotherms could fit well with the Langmuir model, with satisfactory loading capacities of 144.92 and 196.04 mg g-1 for RhB and MO molecules, respectively. Moreover, ultra-sonication treatment admirably decreased the sorption equilibrium time from 180.0 min to 30.0 min. Further-more, spent sorbent was managed particularly for biohydrogen production with a measured yield of 112.89, 116.59, and 128.17 mL-H2/gVS for MGAP, MGAP-MO, and MGAP-RhB, respectively. Overall, the produced MGAP can potentially be offered up as a promising dye scavenger for wastewater remediation and biohydrogen production, thereby fulfilling waste management and circular economy. |
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