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Magnetic Fe3O4 /Al2O3 /MnO2 ternary nanocomposite: Synthesis and characterization for phosphorus desorption from acidic soils using dialysis membrane tube.
Hinsene, Hirpo; M Taddesse, Abi; Teju, Endale; Bogale, Yibrehu.
Afiliación
  • Hinsene H; Department of Chemistry, College of Natural and Computational Sciences, Haramaya University, P.O. Box, 138, Dire Dawa, Ethiopia.
  • M Taddesse A; Department of Chemistry, College of Natural and Computational Sciences, Haramaya University, P.O. Box, 138, Dire Dawa, Ethiopia.
  • Teju E; Department of Chemistry, College of Natural and Computational Sciences, Haramaya University, P.O. Box, 138, Dire Dawa, Ethiopia.
  • Bogale Y; Department of Chemistry, College of Natural and Computational Sciences, Haramaya University, P.O. Box, 138, Dire Dawa, Ethiopia.
Heliyon ; 10(5): e27235, 2024 Mar 15.
Article en En | MEDLINE | ID: mdl-38449605
ABSTRACT
Monitoring phosphorus fertilization is crucial for controlling the concentration of biologically available soil P. Over the years, several methodologies have been used, including successive cropping in a greenhouse or field, as well as extractions employing P sink procedures. The latter procedures are ideal laboratory experiments to show the soil's ability to supply P and to explore the P-residual release kinetics. Following these methodologies, long-term P desorption studies have been developed using dialysis membrane tubes filled with nanomaterial solutions. In this study, a magnetic nanocomposite (Fe3O4/Al2O3/MnO2) was synthesized and characterized utilizing cutting-edge instruments such as XRD, FTIR, FAAS, BET, SEM, and EDX. The resulting material had a crystalline size and surface area of 22.75 nm and 203.69 m2/g, respectively, and was employed for long-term P-desorption and kinetics experiments while filled in dialysis membrane tubes. The P-desorption experiment was conducted on four separate acidic soil samples that were cultured for 122 days with four different P concentrations. The findings demonstrated a direct relationship between P-desorbed and P-treatment, as well as with desorption time. The minimum desorption was obtained from the control of Boji Dirmaji soil P0 (1.16-9.36) and the highest desorption from Nedjo soil with P3 (5.23-30.35 mg/kg) treatment over 1-28 days. The rate of P release from soil to solution or diffusion through the membrane was determined by pseudo-first-order kinetics with a rate constant (0.021-0.028 hr-1). This method has the potential to measure fixed-P availability by mimicking it as a plant would, with high P-desorption efficiency and quick P-release capacity.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Heliyon Año: 2024 Tipo del documento: Article País de afiliación: Etiopia Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Heliyon Año: 2024 Tipo del documento: Article País de afiliación: Etiopia Pais de publicación: Reino Unido