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Adsorption of Malachite Green with Sodium Dodecylbenzene Sulfonate Modified Sepiolite: Characterization, Adsorption Performance and Regeneration

Author

Listed:
  • Jian Yu

    (Department of Water Engineering and Science, College of Civil Engineering, Hunan University, Changsha 410082, China)

  • Lirong Zhang

    (Department of Water Engineering and Science, College of Civil Engineering, Hunan University, Changsha 410082, China)

  • Bin Liu

    (Department of Water Engineering and Science, College of Civil Engineering, Hunan University, Changsha 410082, China
    Department of Chemical Engineering, Process Engineering for Sustainable Systems (ProcESS), KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium)

Abstract

The adsorption of malachite green (MG) onto sodium dodecylbenzene sulfonate (SDBS)-modified sepiolite was investigated with respect to pH, oscillation rate, MG dosage and adsorbent dosage. The modification condition and modified sepiolite characterization were examined. The conditions of 100% cation exchange capacity (CEC), pH value of 9, contact time of 60 min and 25 °C were deemed as the optimal conditions. The interlayer spacing of sepiolite was expanded and the surface hydrophobicity improved due to the entering of SDBS into the interlayer structure of the sepiolite ore. This is probably the reason for its adsorption enhancement. The adsorption of malachite green by organic sepiolite is in line with the quasi-secondary kinetic model. The results from the regeneration procedure suggest that a superior regeneration property obtained with 0.2 mol/L HCl concentration.

Suggested Citation

  • Jian Yu & Lirong Zhang & Bin Liu, 2019. "Adsorption of Malachite Green with Sodium Dodecylbenzene Sulfonate Modified Sepiolite: Characterization, Adsorption Performance and Regeneration," IJERPH, MDPI, vol. 16(18), pages 1-14, September.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:18:p:3297-:d:265229
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    References listed on IDEAS

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    1. Qimeng Ning & Zhihong Yin & Yunguo Liu & Xiaofei Tan & Guangming Zeng & Luhua Jiang & Shaobo Liu & Sirong Tian & Ni Liu & Xiaohua Wang, 2018. "Fabrication of Stabilized Fe–Mn Binary Oxide Nanoparticles: Effective Adsorption of 17β-Estradiol and Influencing Factors," IJERPH, MDPI, vol. 15(10), pages 1-17, October.
    2. Yaumi, A.L. & Bakar, M.Z. Abu & Hameed, B.H., 2017. "Reusable nitrogen-doped mesoporous carbon adsorbent for carbon dioxide adsorption in fixed-bed," Energy, Elsevier, vol. 138(C), pages 776-784.
    3. Ahmad Alhujaily & Hongbo Yu & Xiaoyu Zhang & Fuying Ma, 2018. "Highly Efficient and Sustainable Spent Mushroom Waste Adsorbent Based on Surfactant Modification for the Removal of Toxic Dyes," IJERPH, MDPI, vol. 15(7), pages 1-15, July.
    4. Zhenghua Wang & Lina Liao & Andrew Hursthouse & Na Song & Bozhi Ren, 2018. "Sepiolite-Based Adsorbents for the Removal of Potentially Toxic Elements from Water: A Strategic Review for the Case of Environmental Contamination in Hunan, China," IJERPH, MDPI, vol. 15(8), pages 1-15, August.
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    Cited by:

    1. Jian Yu & Wenting He & Bin Liu, 2020. "Adsorption of Acid Orange Ⅱ with Two Step Modified Sepiolite: Optimization, Adsorption Performance, Kinetics, Thermodynamics and Regeneration," IJERPH, MDPI, vol. 17(5), pages 1-14, March.
    2. Jian Yu & Hao Shen & Bin Liu, 2020. "Adsorption Properties of Polyethersulfone-Modified Attapulgite Hybrid Microspheres for Bisphenol A and Sulfamethoxazole," IJERPH, MDPI, vol. 17(2), pages 1-14, January.

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