A novel adsorbent Auricularia Auricular for the removal of methylene blue from aqueous solution: Isotherm and kinetics studies

Agricultural Pea Waste as a Low-Cost Pollutant Biosorbent for Methylene Blue Removal: Adsorption Kinetics, Isotherm And Thermodynamic Studies

“…These results were used in the isotherm and thermodynamic study. Exothermic results were shown in similar studies [16,18,42]. It was suggested that the increased temperature might weaken the intermolecular bonds between the MB molecules and biosorbent [42].…”

“…The trough at 1612 cm −1 is likely akene C = C groups or C = O/N-H groups of amide I [15][16][17]. The trough at 1513 cm −1 is likely N-H/C-N groups of amide II [15].…”

“…The trough at 1421 cm −1 is likely aromatic C = C groups [14]. The trough at 1366 cm −1 is likely methyl C-H groups [16,17]. The trough at 1316 cm −1 is likely an aromatic ring group [18].…”

“…The troughs at 1230 cm −1 and 1021 cm −1 are likely C-O groups of carboxylic acids, present in lignin [15,18]. The trough at 1148 cm −1 is likely the aromatic rings of lignin or C-O groups [16,18]. The trough at 893 cm −1 is likely C-H linkages in cellulose [15,17,18].…”

“…There has been much interest in biosorbents over the decades, and they continue to be investigated due to different biomass yielding different results. Some impressive examples with high adsorption capacities are knotgrass, brewer's spent grain, fungi, berry seeds and soybean hulls [14][15][16][17][18]. To avoid unnecessary shipping, different biomass needs to be tested to see which local sources are appropriate for industrial sites.…”