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Title: Deposition of zeolite nanoparticles onto porous silica monolith

Abstract

A facile and effective method of deposition of MFl zeolite nanoparticles (nanocrystals) onto macro-/mesoporous silica monolith was proposed. The electrostatic interaction between those two materials was induces by adsorption of cationic polyelectrolytes. That can be realized either by adsorption of polyelectrolyte onto silica monolith or on zeolite nanocrystals. The effect of time, concentration of zeolite nanocrystals, type of polyelectrolyte, and ultrasound treatment is scrutinized. Adsorption of polyelectrolyte onto silica monolith with subsequent deposition of nanocrystals resulted in a monolayer coverage assessed with SEM images. Infrared spectroscopy was applied as a useful method to determine the deposition effectiveness of zeolite nanocrystals onto silica. Modification of nanocrystals with polyelectrolyte resulted in a multilayer coverage due to agglomeration of particles. On the other hand, the excess of polyelectrolyte in the system resulted in a low coverage due to competition between polyelectrolyte and modified nanocrystals.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1356512
Report Number(s):
PNNL-SA-115505
Journal ID: ISSN 2050-6252
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Surface Innovations
Additional Journal Information:
Journal Volume: 4; Journal Issue: 2; Journal ID: ISSN 2050-6252
Country of Publication:
United States
Language:
English

Citation Formats

Gackowski, Mariusz, Bielanska, Elzbieta, Szczepanowicz, Krzysztof, Warszynski, Piotr, and Derewinski, Miroslaw. Deposition of zeolite nanoparticles onto porous silica monolith. United States: N. p., 2016. Web. doi:10.1680/jsuin.15.00023.
Gackowski, Mariusz, Bielanska, Elzbieta, Szczepanowicz, Krzysztof, Warszynski, Piotr, & Derewinski, Miroslaw. Deposition of zeolite nanoparticles onto porous silica monolith. United States. doi:10.1680/jsuin.15.00023.
Gackowski, Mariusz, Bielanska, Elzbieta, Szczepanowicz, Krzysztof, Warszynski, Piotr, and Derewinski, Miroslaw. Wed . "Deposition of zeolite nanoparticles onto porous silica monolith". United States. doi:10.1680/jsuin.15.00023.
@article{osti_1356512,
title = {Deposition of zeolite nanoparticles onto porous silica monolith},
author = {Gackowski, Mariusz and Bielanska, Elzbieta and Szczepanowicz, Krzysztof and Warszynski, Piotr and Derewinski, Miroslaw},
abstractNote = {A facile and effective method of deposition of MFl zeolite nanoparticles (nanocrystals) onto macro-/mesoporous silica monolith was proposed. The electrostatic interaction between those two materials was induces by adsorption of cationic polyelectrolytes. That can be realized either by adsorption of polyelectrolyte onto silica monolith or on zeolite nanocrystals. The effect of time, concentration of zeolite nanocrystals, type of polyelectrolyte, and ultrasound treatment is scrutinized. Adsorption of polyelectrolyte onto silica monolith with subsequent deposition of nanocrystals resulted in a monolayer coverage assessed with SEM images. Infrared spectroscopy was applied as a useful method to determine the deposition effectiveness of zeolite nanocrystals onto silica. Modification of nanocrystals with polyelectrolyte resulted in a multilayer coverage due to agglomeration of particles. On the other hand, the excess of polyelectrolyte in the system resulted in a low coverage due to competition between polyelectrolyte and modified nanocrystals.},
doi = {10.1680/jsuin.15.00023},
journal = {Surface Innovations},
issn = {2050-6252},
number = 2,
volume = 4,
place = {United States},
year = {2016},
month = {6}
}