Antifouling performance of photocatalytic superhydrophobic
coatings against Klebsormidium alga

J 2020

Antifouling performance of photocatalytic superhydrophobic coatings against Klebsormidium alga

TRÁVNÍČKOVÁ, Eva, Barbora PIJÁKOVÁ, Dana MAREŠOVÁ a Luděk BLÁHA

Základní údaje

Originální název

Antifouling performance of photocatalytic superhydrophobic coatings against Klebsormidium alga

Autoři

TRÁVNÍČKOVÁ, Eva (203 Česká republika, domácí), Barbora PIJÁKOVÁ (703 Slovensko, domácí), Dana MAREŠOVÁ a Luděk BLÁHA (203 Česká republika, garant, domácí)

Vydání

Journal of Environmental Chemical Engineering, Oxford, Elsevier, 2020, 2213-3437

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 5.909

Kód RIV

RIV/00216224:14310/20:00114874

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.jece.2020.104153

UT WoS

000575540800003

Klíčová slova anglicky

Algal growth; Biofouling; Water repellent; Superhydrophobic coating; Photocatalysis; Titanium dioxide

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 27. 2. 2023 11:19, Mgr. Michaela Hylsová, Ph.D.

Anotace

V originále

Colonization of man-made surface materials by algae and other microorganisms, i.e. biofouling, causes various aesthetical and health problems as well as deterioration of appearance and surface functioning. The present study investigated eight complex surfaces combining various TiO2, alkoxy-siloxane and hydrophobization agents that were combined to prevent growth of phototrophic filamentous alga Klebsormidium sp. Regarding photoactivity, NOx abatement at the studied surfaces has been improved by adding anti-aggregation substances such as bentonite. Surface properties were characterized by confocal microscopy, scanning electron microscopy, SEM, with the energy dispersive X-ray spectroscopy, EDX, and the contact angle measurements. Biological experiments with Klebsormidium alga were performed in a constructed flow-through system. The results indicated that super-hydrophobicity, i.e. very low surface energy, was critical for efficient antifouling during the early colonization by algae. This was specifically demonstrated in two novel composite samples made of titanium dioxide and commercial hydrophobization agent UltraEverDry. Low surface energy of these materials (around 1.3 mJ/m(2)), high water contact angles (> 140 degrees) as well as decent photoactivity (NOx conversions by 16.7 % and 1.4 % in UV and VIS, respectively), provide a promising basis for further longer-term anti-fouling experiments. The present study introduces novel composite materials preventing the algal fouling, and it brings new evidences on the interactive effects on hydrophobic and photoactive surfaces.

Návaznosti

LM2018121, projekt VaV

Název: Výzkumná infrastruktura RECETOX (Akronym: RECETOX RI)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, RECETOX RI

TE02000011, projekt VaV

Název: Centrum výzkumu povrchových úprav (Akronym: povrchovky)

Investor: Technologická agentura ČR, Research center of surface treatment

Citovat

TRÁVNÍČKOVÁ, Eva, Barbora PIJÁKOVÁ, Dana MAREŠOVÁ a Luděk BLÁHA. Antifouling performance of photocatalytic superhydrophobic coatings against Klebsormidium alga. Journal of Environmental Chemical Engineering. Oxford: Elsevier, 2020, roč. 8, č. 5, s. 1-9. ISSN 2213-3437. Dostupné z: https://dx.doi.org/10.1016/j.jece.2020.104153.

@article{1703416,
   author = {Trávníčková, Eva and Pijáková, Barbora and Marešová, Dana and Bláha, Luděk},
   article_location = {Oxford},
   article_number = {5},
   doi = {http://dx.doi.org/10.1016/j.jece.2020.104153},
   keywords = {Algal growth; Biofouling; Water repellent; Superhydrophobic coating; Photocatalysis; Titanium dioxide},
   language = {eng},
   issn = {2213-3437},
   journal = {Journal of Environmental Chemical Engineering},
   title = {Antifouling performance of photocatalytic superhydrophobic coatings against Klebsormidium alga},
   url = {https://doi.org/10.1016/j.jece.2020.104153},
   volume = {8},
   year = {2020}
}

TY  - JOUR
ID  - 1703416
AU  - Trávníčková, Eva - Pijáková, Barbora - Marešová, Dana - Bláha, Luděk
PY  - 2020
TI  - Antifouling performance of photocatalytic superhydrophobic coatings against Klebsormidium alga
JF  - Journal of Environmental Chemical Engineering
VL  - 8
IS  - 5
SP  - 1-9
EP  - 1-9
PB  - Elsevier
SN  - 22133437
KW  - Algal growth
KW  - Biofouling
KW  - Water repellent
KW  - Superhydrophobic coating
KW  - Photocatalysis
KW  - Titanium dioxide
UR  - https://doi.org/10.1016/j.jece.2020.104153
L2  - https://doi.org/10.1016/j.jece.2020.104153
N2  - Colonization of man-made surface materials by algae and other microorganisms, i.e. biofouling, causes various aesthetical and health problems as well as deterioration of appearance and surface functioning. The present study investigated eight complex surfaces combining various TiO2, alkoxy-siloxane and hydrophobization agents that were combined to prevent growth of phototrophic filamentous alga Klebsormidium sp. Regarding photoactivity, NOx abatement at the studied surfaces has been improved by adding anti-aggregation substances such as bentonite. Surface properties were characterized by confocal microscopy, scanning electron microscopy, SEM, with the energy dispersive X-ray spectroscopy, EDX, and the contact angle measurements. Biological experiments with Klebsormidium alga were performed in a constructed flow-through system. The results indicated that super-hydrophobicity, i.e. very low surface energy, was critical for efficient antifouling during the early colonization by algae. This was specifically demonstrated in two novel composite samples made of titanium dioxide and commercial hydrophobization agent UltraEverDry. Low surface energy of these materials (around 1.3 mJ/m(2)), high water contact angles (> 140 degrees) as well as decent photoactivity (NOx conversions by 16.7 % and 1.4 % in UV and VIS, respectively), provide a promising basis for further longer-term anti-fouling experiments. The present study introduces novel composite materials preventing the algal fouling, and it brings new evidences on the interactive effects on hydrophobic and photoactive surfaces.
ER  -

TRÁVNÍČKOVÁ, Eva, Barbora PIJÁKOVÁ, Dana MAREŠOVÁ a Luděk BLÁHA. Antifouling performance of photocatalytic superhydrophobic coatings against Klebsormidium alga. \textit{Journal of Environmental Chemical Engineering}. Oxford: Elsevier, 2020, roč.~8, č.~5, s.~1-9. ISSN~2213-3437. Dostupné z: https://dx.doi.org/10.1016/j.jece.2020.104153.

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