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 language | English |
|---|---|
| Pages (from-to) | 75-85 |
| Number of pages | 11 |
| Journal | Journal of the Taiwan Institute of Chemical Engineers |
| Volume | 117 |
| DOIs | |
| Publication status | Published - Dec 2020 |
| Externally published | Yes |
Keywords
- Adsorption
- Biochar
- Phosphate
- Spent mushroom waste
- Water treatment
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
