Počet záznamů: 1
SiO2/TiO2 Composite Coating on Light Substrates for Photocatalytic Decontamination of Water
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SYSNO ASEP 0511968 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název SiO2/TiO2 Composite Coating on Light Substrates for Photocatalytic Decontamination of Water Tvůrce(i) Bíbová, Hana (UFCH-W) RID
Hykrdová, Lenka (UFCH-W) RID, ORCID
Hoang, H. (VN)
Eliáš, M. (CZ)
Jirkovský, Jaromír (UFCH-W) RIDČíslo článku 2634398 Zdroj.dok. Journal of Chemistry. - : Hindawi - ISSN 2090-9063
Roč. 2019, SEP 2019 (2019)Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova oxalic-acid ; solar light ; degradation ; tio2 ; 4-chlorophenol ; nanoparticles ; graphite ; removal ; ammonia Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry CEP LM2015073 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000493181100001 EID SCOPUS 85074077289 DOI 10.1155/2019/2634398 Anotace In this study, we describe synthesis and characterization of a floating photocatalyst for water treatment consisting of a light substrate coated by SiO2/TiO2 composite. Three supports of natural origin were used: natural cork, expanded clay (Liapor), and volcanic porous glass (Sorbix). The photoactivity of the coated supports was tested in a laboratory photoreactor, with Liapor being the most photoactive support with good mechanical stability. The corresponding rate constant for the degradation of a model pollutant, 4-chlorophenol, was 7.8 x 10(-5) s(-1). Detail characterization of the coated Liapor was obtained by XRF, SEM/EDX, and UV-Vis diffuse reflectance spectroscopy, and surface area measurements. Outdoor experiments were carried out with calcined Liapor and oxalic acid or methylene blue under sunlight on pilot reactors in the Czech Republic and Vietnam. We demonstrated satisfactory photocatalytic activity, long-term stability, and reusability of the new floating photocatalyst. The photoefficiency to mineralize oxalic acid in water under sunlight was estimated as 6.7% under the applied conditions. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2020 Elektronická adresa http://hdl.handle.net/11104/0302201
Počet záznamů: 1