漆树植物对紫外光的生物吸收:基于平衡、动力学、热力学和密度泛函理论的分析

IF 3.5 4区 工程技术 Q3 ENERGY & FUELS
Osman Çaylak, Halil İbrahim Çetintaş, Muhammed Safa Çelik, Nurevşan Kaya, Serap Çetinkaya, Mikhail M. Maslov, Savaş Kaya
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引用次数: 0

摘要

本文采用理论和实验方法,研究了漆树植物对废水中紫外光(AR)染料的生物吸附能力。利用FTIR分光光度计、SEM(扫描电子显微镜)和EDX(能量色散x射线分析)对所研究的生物吸附剂结构中的活性官能团和表面形貌进行了表征。考察并详细讨论了pH、时间、吸附剂质量、温度等重要参数对生物吸附过程的影响。pH 2被确定为最高生物吸附性的最佳值。生物吸附剂质量为200mg时达到最大效果。生物吸附过程符合Langmuir等温线和PSO动力学模型,并确定该过程具有自发放热性质。通过回收实验,发现所研究的植物在三个循环后保留了约30%的生物吸附能力。为了证明紫红色染料与漆树主要成分的相互作用,采用密度泛函理论进行了计算。理论得到的基于dft的概念描述符,在流行的电子结构规则框架内的评论,计算的吸附能与实验得到的数据吻合良好。结果表明,马齿苋可作为一种有效的生物吸附剂用于去除废水中的AR。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Illumination of biosorption of Allura Red on Rhus coriaria L. (sumac) plant: equilibrium, kinetic, thermodynamic, and density functional theory–based analyses

In the present paper, the biosorption capability of Rhus coriaria L. (sumac) plant for the effective removal of Allura Red (AR) dye from wastewater was tested in the light of theoretical and experimental tools. The reactive functional groups in the structure of the studied biosorbent and the surface morphology of the mentioned biosorbent were highlighted with the help of FTIR spectrophotometer, SEM (scanning electron microscopy), and EDX (energy-dispersive X-ray analysis). The effect of important parameters such as pH, time, adsorbent mass, and temperature on the biosorption process was checked and discussed in detail. pH 2 was determined as the optimum value for the highest biosorption. Maximum effectiveness was reached at a biosorbent mass of 200 mg. The biosorption process adhered to the Langmuir isotherm and PSO kinetic models, and the process was determined to have a spontaneous and exothermic nature. Through the recovery experiments, it was noted that the studied plant retained approximately 30% of its biosorption capacity after three cycles. To prove the power of the interaction between Allura Red dye and dominant components of Rhus coriaria L. (sumac), density functional theory calculations were performed. Theoretically obtained conceptual DFT-based descriptors, the comments made within the framework of popular electronic structure rules, and calculated adsorption energies were in good agreement with the experimentally obtained data. As a result, it was reported that Rhus coriaria L. can be used as an effective and useful biosorbent for the removal of AR from wastewater.

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来源期刊
Biomass Conversion and Biorefinery
Biomass Conversion and Biorefinery Energy-Renewable Energy, Sustainability and the Environment
CiteScore
7.00
自引率
15.00%
发文量
1358
期刊介绍: Biomass Conversion and Biorefinery presents articles and information on research, development and applications in thermo-chemical conversion; physico-chemical conversion and bio-chemical conversion, including all necessary steps for the provision and preparation of the biomass as well as all possible downstream processing steps for the environmentally sound and economically viable provision of energy and chemical products.
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