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<p>In the present study, the waste leaf biomass <i>Prunus laurocerasus</i> L. was used as a novel potential biosorbent for biosorptive malachite green elimination from water medium. Biosorption study was conducted under the variation in several experimental conditions like initial malachite green concentration, biosorbent dosage, pH, and contact time for the purpose of the optimization of the treatment operation. Maximum removal performance was achieved at initial malachite green concentration of 15&#xa0;mg/L, biosorbent dosage of 10&#xa0;mg, pH of 8, and contact time of 360&#xa0;min. Isotherm, kinetic, and thermodynamic studies were performed to gain a more in-depth insight into the biosorption process. Dubinin–Radushkevich (D-R) model was in good agreement with the biosorption isotherm data. The biosorption kinetic data followed the pseudo-second-order (P-S-O) model. The intra-particle diffusion (I-P D) model showed that there were diverse mechanisms affecting the elimination process. Thermodynamic study indicated that the biosorption operation was spontaneous, favorable, and physical in nature. FTIR and SEM analysis results disclosed that different binding groups on biosorbent heterogeneous surface were involved in malachite green biosorption. Malachite green removal capacity of the biosorbent was determined as 83.654&#xa0;mg/g. Compared to other biosorbents for malachite green removal, its biosorption ability was quite high. These results highlighted the potential of the biosorbent as a favorable choice for the effective malachite green removal from water phase.</p>

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Biosorptive Elimination of Malachite Green from Water Medium by Prunus laurocerasus L

  • 期刊论文

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  • 发表日期：

    2026年3月19日

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  • Fatih Deniz

摘要

In the present study, the waste leaf biomass Prunus laurocerasus L. was used as a novel potential biosorbent for biosorptive malachite green elimination from water medium. Biosorption study was conducted under the variation in several experimental conditions like initial malachite green concentration, biosorbent dosage, pH, and contact time for the purpose of the optimization of the treatment operation. Maximum removal performance was achieved at initial malachite green concentration of 15 mg/L, biosorbent dosage of 10 mg, pH of 8, and contact time of 360 min. Isotherm, kinetic, and thermodynamic studies were performed to gain a more in-depth insight into the biosorption process. Dubinin–Radushkevich (D-R) model was in good agreement with the biosorption isotherm data. The biosorption kinetic data followed the pseudo-second-order (P-S-O) model. The intra-particle diffusion (I-P D) model showed that there were diverse mechanisms affecting the elimination process. Thermodynamic study indicated that the biosorption operation was spontaneous, favorable, and physical in nature. FTIR and SEM analysis results disclosed that different binding groups on biosorbent heterogeneous surface were involved in malachite green biosorption. Malachite green removal capacity of the biosorbent was determined as 83.654 mg/g. Compared to other biosorbents for malachite green removal, its biosorption ability was quite high. These results highlighted the potential of the biosorbent as a favorable choice for the effective malachite green removal from water phase.