Adsorption of methylene blue from aqueous solution on activated carbons and composite prepared from an agricultural waste biomass: A comparative study by experimental and advanced modeling analysis

IF 13.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2022-02-15 DOI:10.1016/j.cej.2021.132801

Hanjing Xue , Xuemei Wang , Qi Xu , Fatma Dhaouadi , Lotfi Sellaoui , Moaaz K. Seliem , Abdelmottaleb Ben Lamine , Hafedh Belmabrouk , Abdullah Bajahzar , Adrian Bonilla-Petriciolet , Zichao Li , Qun Li

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引用次数: 154

Abstract

Activated carbons and MOF-based composite were prepared from the ashitaba biomass and they were applied and compared in the adsorption of methylene blue from aqueous solution. Surface chemistry of these adsorbents was characterized with different analytical techniques and results were used to analyze the corresponding adsorption interactions. Statistical physics calculations were performed to interpret the physicochemical parameters involved in the dye adsorption mechanism. Results showed that the dye adsorption with activated carbons was endothermic, while an exothermic dye removal was observed with the MOF-activated carbon composite. Dye adsorption mechanism was a multimolecular process mainly for ashitaba-based activated carbons where electrostatic interactions, van der Waals forces and hydrogen bonding were present. In particular, the activated carbon functionalized with a surfactant outperformed other adsorbents prepared with the ashitaba biomass thus showing adsorption capacities higher than 400 mg/g. This adsorbent is promising for its application in the treatment of wastewaters polluted by this and other dye molecules.

查看原文本刊更多论文

农业废弃物生物质制备的活性炭和复合材料对水溶液中亚甲基蓝的吸附:实验和高级模型分析的对比研究

以木叶生物质为原料制备了活性炭和mof基复合材料，并对其对水溶液中亚甲基蓝的吸附性能进行了比较。用不同的分析方法对这些吸附剂的表面化学性质进行了表征，并利用结果分析了相应的吸附相互作用。统计物理计算解释了染料吸附机理中涉及的物理化学参数。结果表明，活性炭对染料的吸附是吸热的，而mof -活性炭复合材料对染料的去除是放热的。染料吸附机理主要是一个多分子过程，其中存在静电相互作用、范德华力和氢键。特别是表面活性剂功能化的活性炭，其吸附量高于400 mg/g，优于其他用木叶生物质制备的吸附剂。该吸附剂在处理该染料和其他染料分子污染的废水中具有广阔的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.