ELFT HÍRADÓ

[László Bottyán <bottyan.laszlo AT wigner.hu>]

English speakers please scroll down.

Tisztelt Kollégák,

Az imént kiküldött meghívó angol változatában az előző szeminárium címe 
maradt, amiért elnézést kérek. A helyes szöveget alább küldöm.

A Budapesti Neutronközpont következő (angol nyelvű) szemináriumára

"Organofunctional Silica Nanomaterials for Energy and Environmental 
Applications" címmel,

2024. április 25-én, csütörtök 14:00 órakor kerül sor a

KFKI kampusz XIX. épülete tanácstermében.

Előadó: Selay Sert Çok
      (BNC HUN-REN EK, illetve Chem. Engineering Dept, Ege Univ., İzmir, 
Turkey)

Az előadást on-line formában is közvetíteni fogjuk. Az előadásra, illetve 
utólag a videofelvételre mutató linkeket a www.bnc.hu/News oldalra kitett 
hirdetésben közöljük.

Minden személyes és on-line érdeklődőt szeretettel várunk.

Üdvözlettel, Bottyán László
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Dear Colleagues,

Due to a cut-and-paste error, the title of this seminar was incorrect in 
my announcement a few minutes ago. Please find the corrected text below.


The next in-person (EN language) BNC seminar entitled:

"Organofunctional Silica Nanomaterials for Energy and Environmental 
Applications"

will be given by

        Selay Sert Çok
        (BNC HUN-REN EK, illetve Chemical Engineering Dept, Ege Univ., İzmir, 
Turkey)

     on 25 April, 2024 (Thursday) 2 p.m. (KFKI Campus, Bldg 19)

The seminar is also planned to be streamed. Please find the link to the
MS Teams meeting and later to the recorded video in the www.bnc.hu/News 
announcement.

All in-person and on-line visitors are welcome.

Best regards,

László Bottyán

----------------------------------------------------------------------------------

ABSTRACT

Organofunctional Silica Nanomaterials For Energy And Environmental 
Applications

Selay Sert Çok(1,2), Adél Len(1), , Zoltán Dudás(1)

(1) BNC, HUN-REN Centre for Energy Research, Budapest, Hungary
(2) Chemical Engineering Department, Ege University, İzmir, Turkey

Sol-gel derived functional silica-based aerogel-like materials and hybrids 
comprise an important class of porous materials that are widely employed in 
many applications due to their highly developed porous network, ease of 
functionalization, mechanical/chemical/thermal stability, and recyclability. 
Thanks to the versatility of sol-gel chemistry, surface properties and 
microstructures of silica aerogels can easily be tuned by incorporating organic 
moieties into inorganic skeleton. These hybrid structures benefit from the 
functionality of the organic groups and the high surface area and stability of 
the inorganic silica host. So far, our research concentrated on the numerous 
ways of target-specific functionalization of silica aerogels/xerogels for 
diverse energy-related, environmental and biomedical applications. We have 
developed methyl, ethyl, vinyl, methacrylate, epoxide and amine functionalized 
silica aerogels by incorporating organosilanes in-situ to the sol-gel 
reactions. In those studies, chemical and structural variations induced by the 
added organic functional groups to the silica skeleton and their impact on the 
micro- and macroscopic properties were characterized by various techniques such 
as IR spectroscopy, ssNMR spectroscopy, N2 porosimetry, scanning electron 
microscopy, small- angle neutron and X-ray scattering, thermogravimetric 
analysis and contact angle measurements. Functionalized silica aero/xerogels 
were utilized both as efficient adsorbents with high sorption capacity and 
reusability for the removal of oil, organic solvents and pharmaceutical 
compounds from wastewater in environmental remediation applications and as 
thermal insulators with effective thermal conductivity values lower than 45 
mW/mK in energy-saving applications. Due to their super hydrophobicity (Θ>150°) 
they prove to be effective as bacteria-repelling barriers for potential 
health-care-related applications. Keywords: silica aerogels-xerogels, organic 
functionality, thermal insulation, environmental remediation.

REFERENCES
1. Selay Sert Çok, Fatoș Koç, Adél Len, Nilay Gizli, Zoltán Dudás,
Separation and Purification Technology, 2024, 334, 125958.
2. Selay Sert Çok, Fatoş Koç, Zoltán Dudás, Nilay Gizli,
Gels, 2023, 9, 33.
3. S. Sert Çok, F. Koç, N. Gi̇zli̇, Journal of Hazardous Materials,
Volume 408, 124858, 2021.
4. S. Sert Çok, N. Gi̇zli̇, International Journal of Heat and Mass Transfer, Vol. 
188, 122618, 2022.