Ambient-temperature porogen-free method for preparation of silica-based macroporous materials
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43925009" target="_blank" >RIV/60461373:22310/22:43925009 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22330/22:43925009 RIV/60461373:22340/22:43925009
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0927775721019026?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0927775721019026?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.colsurfa.2021.128033" target="_blank" >10.1016/j.colsurfa.2021.128033</a>
Alternative languages
Result language
angličtina
Original language name
Ambient-temperature porogen-free method for preparation of silica-based macroporous materials
Original language description
The presented work focuses on the synthesis of silica-based macroporous aggregates composed of silica nano-particles using a template-free method. To improve the mechanical strength of the prepared fractal-like aggregates, the silica precursor tetraethyl orthosilicate (TEOS) is used during nanoparticle aggregation. The obtained results confirm the possibility to tailor the pore size distribution (PSD) simply by using primary particles of various sizes. The prepared porous materials have a porosity ranging from 60% to 74% with a specific surface area between 10 and 200 m(2)/g and an average pore diameter from 30 to 1300 nm. Functionalization of the aggregate surface was done by replacing part of TEOS with a silica precursor that contained desired functional groups. This was demonstrated by preparing macroporous aggregates with carboxyl, amine and epoxy functional groups. The application of prepared aggregates was demonstrated by immobilization of urease from Canavalia ensiformis resulting in high enzyme activity compare to free enzymes.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20401 - Chemical engineering (plants, products)
Result continuities
Project
<a href="/en/project/GA16-22997S" target="_blank" >GA16-22997S: Preparation of Porous Materials by Controlled Assembly of Nanoparticles</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Colloids and Surfaces A: Physicochemical and Engineering Aspects
ISSN
0927-7757
e-ISSN
1873-4359
Volume of the periodical
634
Issue of the periodical within the volume
FEB 5 2022
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
128033
UT code for WoS article
000730865600005
EID of the result in the Scopus database
2-s2.0-85120619979