A Novel High-Efficiency Natural Biosorbent Material Obtained from Sour Cherry (Prunus cerasus) Leaf Biomass for Cationic Dyes Adsorption

Abstract

The present study aimed to investigate the potential of a new lignocellulosic biosorbent material derived from mature leaves of sour cherry (Prunus cerasus L.) for removing methylene blue and crystal violet dyes from aqueous solutions. The material was first characterized using several specific techniques (SEM, FTIR, color analysis). Then, the adsorption process mechanism was investigated through studies related to adsorption equilibrium, kinetics, and thermodynamics. A desorption study was also performed. Results showed that the Sips isotherm provided the best fit for the adsorption process of both dyes, with a maximum adsorption capacity of 168.6 (mg g−1) for methylene blue and 524.1 (mg g−1) for crystal violet, outperforming the capacity of other similar adsorbents. The contact time needed to reach equilibrium was 40 min for both studied dyes. The Elovich equation is the most suitable model for describing the adsorption of methylene blue, while the general order model is better suited for the adsorption of crystal violet dye. Thermodynamic analyses revealed the adsorption process to be spontaneous, favorable, and exothermic, with physical adsorption involved as the primary mechanism. The obtained results suggest that sour cherry leaves powder can be a highly efficient, eco-friendly, and cost-effective adsorbent for removing methylene blue and crystal violet dyes from aqueous solutions.

Recent Advances in the Remediation of Textile-Dye-Containing Wastewater: Prioritizing Human Health and Sustainable Wastewater Treatment

“…Ashoka leaf powder exhibited interactive behavior towards rhodamine B (RhB), Malachite Green, and Brilliant Green dyes [154]. A novel lignocellulosic biosorbent material, obtained from fully developed leaves of the sour cherry plant (Prunus cerasus L.), has remarkable efficacy in the removal of Methylene Blue and crystal violet dyes [155]. The coffee waste demonstrates a characteristic three-dimensional carbon structure, with a rough surface and a porous system that allows it to function as a promising adsorbent for the removal of anionic CR and RB5 dyes from aqueous solutions [156].…”

Utilizing Novel Lignocellulosic Material from Hart’s-Tongue Fern (Asplenium scolopendrium) Leaves for Crystal Violet Adsorption: Characterization, Application, and Optimization

“…Figure 7 shows the fitted curves of this model at various initial dye concentrations. In the scientific literature, it is mentioned that the general-order kinetic model characterizes the adsorption of the crystal violet dye on similar adsorbent materials such as motherwort biomass [67] and sour cherry leaf [68]. Increasing the initial concentration of the dye has a positive effect on the adsorption capacity due to the increase in the concentration gradient and the number of collisions between the dye molecules and the adsorbent material particles [8,46,51,53,55].…”

“…Figure 7 shows the fitted curves of this model at various initial dye concentrations. In the scientific literature, it is mentioned that the general-order kinetic model characterizes the adsorption of the crystal violet dye on similar adsorbent materials such as motherwort biomass [67] and sour cherry leaf [68].…”

Facile Fabrication of Porous Adsorbent with Multiple Amine Groups for Efficient and Selective Removal of Amaranth and Tartrazine Dyes from Water

“…These methods involve techniques such as precipitation, oxidation, electrolysis, photocatalytic degradation, electrochemical degradation, encapsulation, adsorption, and microbial degradation [12][13][14][15][16][17][18][19][20]. Among these techniques, adsorption technology is the most economically feasible, as it offers low cost, high efficiency, ease of operation, wide adaptability, the lowest energy consumption, and environmentally friendly by-products [21][22][23][24][25]. However, conventional adsorbents like activated carbon have their limitations, including low adsorption capacity, limited selectivity, slow adsorption kinetics, and suboptimal reusability.…”