ELFT HÍRADÓ

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

English speakers please scroll down.

Tisztelt Kollégák,

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 Chemical 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.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Dear Colleagues,

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

"Development of In-situ Thin Film Growth for Polarized Neutron Reflectometry"

to 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 netmeeting 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.