Ammonia traces detection based on photoacoustic spectroscopy for evaluating ammonia volatization from natural zeolites at typical crop field temperature

Ammonia traces detection based on photoacoustic spectroscopy for evaluating ammonia volatization from natural zeolites at typical crop field temperature

A Brazilian sedimentary zeolite-containing microporous material was characterized by determining its physical and chemical properties (surface area, pore volume, dinitrogen and ammonia desorption rates, oxide composition, and acid site characterization), and compared with two commercial natural zeol...

Full description

Saved in:
Bibliographic Details
Published in:Sensors and actuators. B, Chemical Vol. 158; no. 1; pp. 241 - 245
Main Authors: Baptista-Filho, Milton, Riter, Heitor Gonçalves, da Silva, Marcelo Gomes, Luna, Fernando J., Werneck, Carlos Guarino, Rech, Ioná, Polidoro, José Carlos, Mello Monte, Marisa Bezerra, Souza-Barros, Fernando, Miklos, Andras, Vargas, Helion
Format: Journal Article
Language:English
Published: Elsevier B.V 15-11-2011
Subjects:
Adsorption
Ammonia
Ammonium sulfate
desorption
Fertilizer
fertilizers
Ion exchange
monitoring
Natural zeolite
nitrogen
Photoacoustic spectroscopy
physicochemical properties
surface area
temperature
X-ray fluorescence spectroscopy
zeolites
Natural zeolite
Ammonia
Ammonium sulfate
Photoacoustic spectroscopy
Ion exchange
Fertilizer
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A Brazilian sedimentary zeolite-containing microporous material was characterized by determining its physical and chemical properties (surface area, pore volume, dinitrogen and ammonia desorption rates, oxide composition, and acid site characterization), and compared with two commercial natural zeolites. The characterization of these materials was performed using N 2 adsorption, X-ray fluorescence spectroscopy and temperature programmed desorption (TPD) techniques. Using photoacoustic spectroscopy, the performance of these microporous materials in the adsorption and delayed desorption of nitrogen-containing fertilizers was studied by monitoring the ammonia emission rate after their treatment with ammonium sulfate. Ammonia desorption curves were recorded under 30 °C and 60 °C, aiming to reproduce typical Brazilian cropfield temperature conditions.
Bibliography:http://dx.doi.org/10.1016/j.snb.2011.06.012
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2011.06.012