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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received April 19, 2024
Accepted July 20, 2024

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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

Van-Truc Nguyen Nguyen Duy Dat¹ Quoc-Hoang Do Vu-Anh Le² Quoc-Minh Truong³ Thanh-Binh Nguyen⁴ Anh Thi Kim Tran¹ My Linh Nguyen¹ Nhung Thi-Tuyet Hoang¹ Tran Thi Ai My⁵ Thi-Dieu-Hien Vo²

Faculty of Environment , Saigon University ¹Faculty of Chemical & Food Technology , Ho Chi Minh City University of Technology and Education ²Institute of Applied Technology and Sustainable Development , Nguyen Tat Thanh University ³Department of Management Science , Thu Dau Mot University ⁴Institute of Aquatic Science and Technology , National Kaohsiung University of Science and Technology ⁵Department of Chemistry , University of Sciences, Hue University

Korean Journal of Chemical Engineering, October 2024, 41(11), 3127-3138(12), https://doi.org/10.1007/s11814-024-00237-8

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 aff ecting the adsorption of MB on Fe-SB, including temperature, pH,

salt, and diff erent 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 specifi c surface area of Fe-SB is 568 m 2 /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.

Keywords

Biochar · Sucrose · Goethite · Adsorption · Methylene blue (MB)