Activated polymeric materials for phosphorus removal in aqueous medium: Study of kinetics and adsorption isotherm
| dc.contributor.author | Kari Ferro, Aydeé | |
| dc.contributor.author | Solano Reynoso, Aydeé M. | |
| dc.contributor.author | Alvarez Arias, Celinda | |
| dc.contributor.author | Echegaray Peña, Nora Gladis | |
| dc.contributor.author | Choque Quispe, David | |
| dc.date.accessioned | 2026-03-12T20:50:53Z | |
| dc.date.available | 2026-03-12T20:50:53Z | |
| dc.date.issued | 2026-03-12 | |
| dc.description.abstract | Excess dissolved phosphorus can cause eutrophication of water bodies. Various porous materials have been proposed to reduce P levels to acceptable levels. The study aimed to evaluate the phosphorus adsorption potential in aqueous media at pH 5, 6, and 8 through citric acid esterified cellulose nanocrystals (NCC), NaCl activated clay (AA), and atomized Nostoc sphaericum hydrocolloid (NS-AH). ζ potential, particle size, zero charge point, total inorganic carbon, TGA, DSC, XRD, and FTIR analysis of the adsorbent materials were determined. The adsorption capacity of P was 16.17, 13.45, and 9.25 mg/g, and removal up to 89.44, 70.35, and 51.66 % by NCC, AA, and NS-AH respectively from 20 ppm P solution. The PFO, PSO, and Intraparticle Diffusion kinetic models were studied, indicating high adsorption rate for AA and NCC during the first 20 min. The study of Langmuir, Freundlich, Redlich-Peterson, Temkin, and Dubinin Radushkevich isotherms showed that the adsorbents present heterogeneous surface, high porosity, and affinity for P at pH 8 in the order NCC > AA > NS-AH and that adsorption is spontaneous and favorable, governing chemisorption processes. The proposed materials, mainly NCC and AA, present high potential for P removal in aqueous media. | |
| dc.description.sponsorship | Universidad Nacional Micaela Bastidas de Apurímac, Resolution No 102-2022-CU-UNAMBA | |
| dc.format | application/pdf | |
| dc.identifier.doi | https://doi.org/10.1016/j.rineng.2024.103201 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14195/1498 | |
| dc.language.iso | eng | |
| dc.publisher | Results in Engineering, Elsevier | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/ | |
| dc.subject | Phosphorus removal Cellulose nanocrystals Activated clay Atomized hydrocolloid Kinetic models Adsorption isotherms | |
| dc.subject.ocde | https://purl.org/pe-repo/ocde/ford#2.11.00 | |
| dc.title | Activated polymeric materials for phosphorus removal in aqueous medium: Study of kinetics and adsorption isotherm | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/publishedVersion |
