Modified Sucrose Biochar Goethite (α-FeOOH): A Potential Adsorbent for Methylene Blue Removal

IF 2.9 4区工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY Korean Journal of Chemical Engineering Pub Date : 2024-08-23 DOI:10.1007/s11814-024-00237-8

Van-Truc Nguyen, Nguyen Duy Dat, Quoc-Hoang Do, Vu-Anh Le, Quoc-Minh Truong, Thanh-Binh Nguyen, Anh Thi Kim Tran, My Linh Nguyen, Nhung Thi-Tuyet Hoang, Tran Thi Ai My, Thi-Dieu-Hien Vo

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Abstract

The primary purpose of this study is to synthesize biochar (Fe-SB) derived from sucrose through hydrothermal carbonization coupling with goethite activation and utilize it as an adsorbent to remove methylene blue (MB). FTIR, SEM, and BET were used to analyze the biochar characterization. Factors affecting the adsorption of MB on Fe-SB, including temperature, pH, salt, and different water sources, were also meticulously investigated. SEM results indicate that the morphology of the biochar derived from sucrose has a spherical shape, and the goethite crystal has a needle-like structure that successfully deposits on the adsorbent. The specific surface area of Fe-SB is 568 m²/g and contains enormous functional groups of O–H, C = C, and C–O. In the condition of pH 8, Fe-SB had a maximum adsorption capability of 476.2 mg/g. The adsorption capacity of biochar for MB removal consists of various adsorption mechanisms. In conclusion, Fe-SB, a novel material, pinpoints a promising and environmentally friendly adsorbent for the removal of MB from aquatic environment.

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改性蔗糖生物炭沸石（α-FeOOH）：去除亚甲基蓝的潜在吸附剂

本研究的主要目的是通过水热碳化法和脱墨活化法合成从蔗糖中提取的生物炭（Fe-SB），并将其用作去除亚甲基蓝（MB）的吸附剂。傅立叶变换红外光谱、扫描电镜和 BET 被用来分析生物炭的特性。此外，还仔细研究了影响甲基溴在 Fe-SB 上吸附的因素，包括温度、pH 值、盐和不同的水源。扫描电镜结果表明，从蔗糖中提取的生物炭的形态呈球形，鹅卵石晶体呈针状结构，并成功地沉积在吸附剂上。Fe-SB 的比表面积为 568 m2/g，含有大量 O-H、C = C 和 C-O 官能团。在 pH 值为 8 的条件下，Fe-SB 的最大吸附能力为 476.2 mg/g。生物炭去除甲基溴的吸附能力包括多种吸附机制。总之，Fe-SB 这种新型材料为去除水生环境中的甲基溴提供了一种前景广阔的环境友好型吸附剂。

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来源期刊

Korean Journal of Chemical Engineering 工程技术-工程：化工

CiteScore

4.60

自引率

11.10%

发文量

310

审稿时长

4.7 months

期刊介绍： The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.