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ORIGINAL RESEARCH article

Front. Environ. Sci.
Sec. Toxicology, Pollution and the Environment
Volume 12 - 2024 | doi: 10.3389/fenvs.2024.1540638
This article is part of the Research Topic Recent Advances in Volatile Organic Compounds, Heavy Metals, Microplastics, and Solid Wastes in Ecosystems View all 6 articles

Adsorption and removal of pentavalent antimony from water by biochar prepared from modified rosa roxburghii residue

Provisionally accepted
Yong Dai Yong Dai 1*Shengmao Zhao Shengmao Zhao 2*Ruyi Zheng Ruyi Zheng 2
  • 1 China Overseas Construction Limited, Shenzhen, China
  • 2 Guizhou University, Guiyang, Guizhou Province, China

The final, formatted version of the article will be published soon.

    In order to investigate the adsorption properties of modified rosa roxburghii residue biochar to antimony (Sb) in water, the modified rosa roxburghii residue biochar (BC-FeOOH) was prepared from rosa roxburghii residue factory in Guizhou Processing plant. The adsorption characteristics of BC-FeOOH on Sb(V) in water were investigated by batch test experiments with different pH, biochar dosage and adsorption time. The results showed that the best adsorption effect of BC-FeOOH on antimony was achieved at the dosage of 0.05 g and pH 2.0, and the adsorption amount reached 5.7 mg/g. The results of adsorption kinetic modeling showed that the equilibrium time of the adsorption of BC-FeOOH on Sb(V) in water was in the range of 8-10 h, and the mechanism of adsorption was mainly chemical adsorption. Langmuir model can better describe the adsorption process of BC-FeOOH on Sb(V), and the surface adsorption process is monomolecular layer chemisorption. The experimental results showed that BC-FeOOH is a good adsorbent for Sb pollution remediation in water. This study provides n ew insights for the development of Sb contamination removal strategies in water and offers a new way for the resource utilization of prickly pear pomace.

    Keywords: BC-FeOOH, Sb(V), Adsorption, biochar, Rosa roxburghii residue

    Received: 06 Dec 2024; Accepted: 26 Dec 2024.

    Copyright: © 2024 Dai, Zhao and Zheng. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Yong Dai, China Overseas Construction Limited, Shenzhen, China
    Shengmao Zhao, Guizhou University, Guiyang, 550025, Guizhou Province, China

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