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Adsorption of Tetracycline by Magnetic Mesoporous Silica Derived from Bottom Ash—Biomass Power Plant

Author

Listed:
  • Phan Thi Hong Hanh

    (Industrial Ecology in Energy Research Center, Faculty of Environmental Management, Prince of Songkla University, Songkhla 90112, Thailand)

  • Khamphe Phoungthong

    (Industrial Ecology in Energy Research Center, Faculty of Environmental Management, Prince of Songkla University, Songkhla 90112, Thailand)

  • Suchada Chantrapromma

    (Division of Physical Science, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand)

  • Patcharanan Choto

    (School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
    Center of Chemical Innovation for Sustainability, Mae Fah Luang University, Chiang Rai 57100, Thailand)

  • Chuleeporn Thanomsilp

    (School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand)

  • Piyanuch Siriwat

    (School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand)

  • Nuttachat Wisittipanit

    (School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
    Department of Materials Engineering, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand)

  • Thitipone Suwunwong

    (School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
    Center of Chemical Innovation for Sustainability, Mae Fah Luang University, Chiang Rai 57100, Thailand)

Abstract

In recent years, the contamination of the aquatic environment with antibiotics, including tetracyclines, has drawn much attention. Bottom ash (BA), a residue from the biomass power plant, was used to synthesize the magnetic mesoporous silica (MMS) and was utilized as an adsorbent for tetracycline (TC) removal from aqueous solutions. The MMS was characterized by Fourier transform-infrared (FTIR), X-ray diffraction (XRD) pattern, and scanning electron microscopy (SEM). Optimum conditions were obtained in overnight incubation at 60 °C, a pH of 6–8, and an adsorption capacity of 276.74 mg/g. The isotherm and kinetic equations pointed to a Langmuir isotherm model and pseudo-first-order kinetic optimum fitting models. Based on the very low values of entropy changes (Δ S° ), the negative value of enthalpy changes (Δ H° ) (−15.94 kJ/mol), and the negative Gibbs free-energy changes (Δ G° ), the adsorption process was physisorption and spontaneous.

Suggested Citation

  • Phan Thi Hong Hanh & Khamphe Phoungthong & Suchada Chantrapromma & Patcharanan Choto & Chuleeporn Thanomsilp & Piyanuch Siriwat & Nuttachat Wisittipanit & Thitipone Suwunwong, 2023. "Adsorption of Tetracycline by Magnetic Mesoporous Silica Derived from Bottom Ash—Biomass Power Plant," Sustainability, MDPI, vol. 15(6), pages 1-13, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:6:p:4727-:d:1090001
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