RT Journal Article
T1 Glyphosate adsorption onto porous clay heterostructure (PCH): kinetic and thermodynamic studies
A1 Besghaier, Sabrine
A1 Cecilia-Buenestado, Juan Antonio
A1 Chouikhi, Nesrine
A1 Vilarrasa García, Enrique
A1 Rodríguez-Castellón, Enrique
A1 Chlendi, Mohamed
A1 Bagane, Mohamed
K1 Glifosato
AB The synthesis of PCH from natural bentonite produces a porous heterostructure material effective for the adsorption of glyphosate from water. The adsorption process takes place through an interaction between the silanol group of montmorillonite and/or the PCH adsorbent with the functional groups of glyphosate. The glyphosate adsorption isotherms, recorded for all the studied samples, have been established to be of Langmuir type. The kinetic of the herbicide adsorption on the PCH was best described by the pseudo-second-order model. With the increase in temperature from 25 to 50 °C, the sorption capacities of the materials studied towards glyphosate increased. The process of glyphosate adsorption was found to be endothermic and spontaneous in nature, as indicated by positive values of ΔH and negative values of ΔG. According to the results obtained, the herbicide sorption was more effective in a basic environment. The maximum amount of adsorbed glyphosate is almost doubled with PCH from 13.5 mg/g of natural clay to 27.5 mg/g of PCH.
PB Springer
YR 2021
FD 2021-10-07
LK https://hdl.handle.net/10630/24043
UL https://hdl.handle.net/10630/24043
LA eng
NO Besghaier, S., Cecilia, J.A., Chouikhi, N. et al. Glyphosate adsorption onto porous clay heterostructure (PCH): kinetic and thermodynamic studies. Braz. J. Chem. Eng. (2021). https://doi.org/10.1007/s43153-021-00166-7
NO This study was partially funded by project RTI2018-099668-BC22 of Ministerio de Ciencia, Innovación y Universidades, and project UMA18-FEDERJA-126 of Junta de Andalucía and FEDER funds. Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature and Funding for open access charge: Universidad de Málaga / CBUA.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026