Bio-silica production from rice husk for environmental remediation: Removal of methylene blue from aqueous solutions

Bio-silica production from rice husk for environmental remediation: Removal of methylene blue from aqueous solutions

In this work, a methodology was thus structured to obtain bio-silica (SiO2) from rice husk (RH). The rice husk ash (RHA) obtained was characterized using X-ray diffraction (XRD), infrared and UV–Vis absorption spectroscopy, scanning electron microscopy (SEM) and elemental analysis (EDS), as well as...

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Veröffentlicht in:Materials chemistry and physics 2023-06, Vol.301, p.127671, Article 127671
Hauptverfasser: Villota-Enríquez, M.D., Rodríguez-Páez, J.E.
Format: Artikel
Sprache:eng
Schlagworte:
Bio-silica (SiO2)
Environmental remediation
MB removal
Rice husk
Synthesis
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Zusammenfassung:In this work, a methodology was thus structured to obtain bio-silica (SiO2) from rice husk (RH). The rice husk ash (RHA) obtained was characterized using X-ray diffraction (XRD), infrared and UV–Vis absorption spectroscopy, scanning electron microscopy (SEM) and elemental analysis (EDS), as well as nitrogen adsorption-desorption isotherms to determine its specific surface area and porosity. The results showed that the synthesized bio-silica was amorphous, with highly agglomerated submicron particles (
ISSN:0254-0584
DOI:10.1016/j.matchemphys.2023.127671