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Waste Biomass-Mediated Synthesis of TiO 2 /P, K-Containing Grapefruit Peel Biochar Composites with Enhanced Photocatalytic Activity.
- Source :
- Molecules; May2024, Vol. 29 Issue 9, p2090, 22p
- Publication Year :
- 2024
-
Abstract
- In this study, TiO<subscript>2</subscript>/P, K-containing grapefruit peel biochar (TiO<subscript>2</subscript>/P, K-PC) composites were synthesized in situ biomimetically using grapefruit peel as the bio-template and carbon source and tetrabutyl titanate as the titanium source. This was achieved using the two-step rotary impregnation–calcination method. Adjusting the calcination temperature of the sample in an air atmosphere could regulate the mass ratio of TiO<subscript>2</subscript> to carbon. The prepared samples were subjected to an analysis of their compositions, structures, morphologies, and properties. It demonstrated that the prepared samples were complexes of anatase TiO<subscript>2</subscript> and P, K-containing carbon, with the presence of graphitic carbon. They possessed a unique morphological structure with abundant pores and a large surface area. The grapefruit peel powder played a crucial role in the induction and assembly of TiO<subscript>2</subscript>/P, K-PC composites. The sample PCT-400-550 had the best photocatalytic activity, with the degradation rate of RhB, MO, and MB dye solutions reaching more than 99% within 30 min, with satisfactory cyclic stability. The outstanding photocatalytic activity can be credited to its unique morphology and the efficient collaboration between TiO<subscript>2</subscript> and P, K-containing biochar. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14203049
- Volume :
- 29
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Molecules
- Publication Type :
- Academic Journal
- Accession number :
- 177182850
- Full Text :
- https://doi.org/10.3390/molecules29092090