Back to Search
Start Over
Describing Phosphorus Sorption Processes on Volcanic Soil in the Presence of Copper or Silver Engineered Nanoparticles
- Source :
- Minerals, Volume 11, Issue 4, Minerals 11(4), 373-(2021). doi:10.3390/min11040373, Minerals, Vol 11, Iss 373, p 373 (2021)
- Publication Year :
- 2021
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2021.
-
Abstract
- Engineered nanoparticles (ENPs) present in consumer products are being released into the agricultural systems. There is little information about the direct effect of ENPs on phosphorus (P) availability, which is an essential nutrient for crop growthnaturally occurring in agricultural soils. The present study examined the effect of 1, 3, and 5% doses of Cu0 or Ag0 ENPs stabilized with L-ascorbic acid (suspension pH 2–3) on P ad- and desorption in an agricultural Andisol with total organic matter (T-OM) and with partial removal of organic matter (R-OM) by performing batch experiments. Our results showed that the adsorption kinetics data of H2PO4− on T-OM and R-OM soil samples with and without ENPs were adequately described by the pseudo-second-order (PSO) and Elovich models. The adsorption isotherm data of H2PO4− from T-OM and R-OM soil samples following ENPs addition were better fitted by the Langmuir model than the Freundlich model. When the Cu0 or Ag0 ENPs doses were increased, the pH value decreased and H2PO4− adsorption increased on T-OM and R-OM. The H2PO4− desorption (%) was lower with Cu0 ENPs than Ag0 ENPs. Overall, the incorporation of ENPs into Andisols generated an increase in P retention, which may affect agricultural crop production.
- Subjects :
- lcsh:QE351-399.2
chemistry.chemical_element
010501 environmental sciences
01 natural sciences
volcanic soil
symbols.namesake
Adsorption
nutrients
Desorption
ddc:550
pollution
Organic matter
phosphorus
0105 earth and related environmental sciences
organic matter
chemistry.chemical_classification
lcsh:Mineralogy
Phosphorus
engineered nanoparticles
Langmuir adsorption model
Geology
Sorption
04 agricultural and veterinary sciences
Geotechnical Engineering and Engineering Geology
Andisol
chemistry
adsorption
Environmental chemistry
Soil water
040103 agronomy & agriculture
symbols
0401 agriculture, forestry, and fisheries
Subjects
Details
- Language :
- English
- ISSN :
- 2075163X
- Database :
- OpenAIRE
- Journal :
- Minerals
- Accession number :
- edsair.doi.dedup.....72b8d9bbd6c9dd95890aa819a458c54b
- Full Text :
- https://doi.org/10.3390/min11040373