Fast, efficient and clean adsorption of bisphenol-A using renewable mesoporous silica nanoparticles from sugarcane waste ash
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2020
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Even with all the biological problems associated with bisphenol-A (BPA), this chemical is still being widely
used, especially in thermal paper receipts. In this study, renewable mesoporous silica nanoparticles (MSN),
obtained from sugarcane ash, functionalized with hexadecyltrimethylammonium (CTAB) were applied as an
adsorbent in the removal of BPA from the aqueous solution. The versatility of this material and its BPA
adsorption capacity were tested at different pH values, being practically constant at pH between 4 and 9,
with a slight increase in pH 10 and a greater increase in pH 11. The removal time evaluation indicates
a very fast adsorption process, removing almost 90% of BPA in the first 20 min of contact. The kinetic
model indicates a monolayer formation of BPA molecules on the MSN-CTAB surface. The maximum
adsorption capacity (Qmax) was 155.78 mg g-1, one of the highest found in literature, and the highest for
material from a renewable source.
Como referenciar
ROVANI, SUZIMARA; SANTOS, JONNATAN J.; GUILHEN, SABINE N.; CORIO, PAOLA; FUNGARO, DENISE A. Fast, efficient and clean adsorption of bisphenol-A using renewable mesoporous silica nanoparticles from sugarcane waste ash. RSC Advances, v. 10, n. 46, p. 27706–27712, 2020. DOI: 10.1039/d0ra05198e. Disponível em: http://repositorio.ipen.br/handle/123456789/31478. Acesso em: 13 Feb 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.