Modeling methylene blue adsorption via statistical physics with Lantana camara L. derived biochar

IF 3.4 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

International Journal of Environmental Science and Technology Pub Date : 2026-09-17 DOI:10.1007/s13762-026-07455-z

W. E. Jemmali, M. Bouzid, A. Ben Lamine

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Abstract

This study investigates the efficiency of biochar derived from Lantana camara L. as an adsorbent for removing methylene blue dye from aqueous solutions. Two varieties of biochar, BC_L600 and BC_S600, were assessed, and their adsorption characteristics were investigated using a double-layer model based on statistical physics. Results showed that the adsorption locations on both materials can facilitate both mono- and multi-molecular bonding of MB molecules, implying a complex, non-linear adsorption mechanism. Adsorption tests conducted at different temperatures demonstrated that BC_L600 showed outstanding performance, achieving a maximum adsorption capacity of approximately 55 mg/g, underlining its potential for efficient wastewater treatment uses. Thermodynamic evaluations confirmed that the adsorption process is spontaneous and primarily governed by physical interactions, thereby reinforcing its sustainable and eco-friendly attributes. Moreover, the evaluation of Gibbs free energy and internal energy provided key insights into the thermodynamic elements affecting adsorption affinity and stability on biochar surfaces. This comprehensive analysis advances understanding of the mechanistic pathways governing dye adsorption on invasive biomass-derived adsorbents, paving the way for their optimized utilization in environmental remediation.

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利用统计物理方法模拟大蕉衍生生物炭对亚甲基蓝的吸附

本研究考察了从大蕉中提取的生物炭作为吸附剂去除水溶液中亚甲基蓝染料的效率。以BCL600和BCS600两种生物炭为研究对象，采用基于统计物理的双层吸附模型研究其吸附特性。结果表明，两种材料上的吸附位置均有利于MB分子的单分子和多分子结合，表明其吸附机制复杂、非线性。在不同温度下进行的吸附试验表明，BCL600表现出出色的性能，最大吸附量约为55 mg/g，突显了其高效废水处理用途的潜力。热力学评价证实，吸附过程是自发的，主要由物理相互作用控制，从而加强了其可持续和生态友好的属性。此外，Gibbs自由能和内能的评估为了解影响生物炭表面吸附亲和性和稳定性的热力学因素提供了关键的见解。这一综合分析促进了对入侵生物来源吸附剂对染料吸附的机制途径的理解，为其在环境修复中的优化利用铺平了道路。

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来源期刊

International Journal of Environmental Science and Technology 环境科学-环境科学

CiteScore

5.60

自引率

6.50%

发文量

806

审稿时长

10.8 months

期刊介绍： International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management. A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made. The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.