Facile fabrication of Mg-Fe-biochar adsorbent derived from spent mushroom waste for phosphate removal

Ahmad Alhujaily, Yingzheng Mao, Jialong Zhang, Jerosha Ifthikar, Xiaoyu Zhang, Fuying Ma

Research output: Journal PublicationArticlepeer-review

23 Citations (Scopus)

Abstract

Excessive phosphate in water bodies causes eutrophication, which can be harmful to human and animal health. This study aimed to fabricate biochar adsorbent based on Mg-Fe modified spent mushroom waste for removing phosphate from aqueous solutions. Various characterization tools such as scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX), Brunauer Emmett Teller (BET), X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FT-IR) were applied to determine the surface structure and properties of biochar from spent mushroom waste (BSMW) and biochar from Mg-Fe modified spent mushroom waste (Mg-Fe@BSMW). The result confirmed that Mg and Fe were successfully embedded into the biochar matrix. Mg-Fe@BSMW showed an excellent adsorption capacity for phosphate (247 mg g−1). Kinetic and isotherm analyses revealed that the current study's data fitted well with the pseudo-second-order model and the Langmuir model. A thermodynamic study indicated that phosphate removal was exothermic and spontaneous. Our study indicated that Mg-Fe@BSMW was a potential adsorbent with high efficiency, and excellent reusability for phosphate removal.

Original languageEnglish
Pages (from-to)75-85
Number of pages11
JournalJournal of the Taiwan Institute of Chemical Engineers
Volume117
DOIs
Publication statusPublished - Dec 2020
Externally publishedYes

Keywords

  • Adsorption
  • Biochar
  • Phosphate
  • Spent mushroom waste
  • Water treatment

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering

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