Pregled bibliografske jedinice broj: 703207
Degradation of azo-dye aqueous solution using TiO2 nanoparticles irradiated with natural solar and artificial solar-like radiation
Degradation of azo-dye aqueous solution using TiO2 nanoparticles irradiated with natural solar and artificial solar-like radiation // MATRIB 2014-Proceedings / Sanja Šolić / Mateja Šnajdar Musa (ur.).
Zagreb: Hrvatsko društvo za materijale i tribologiju (HDMT), 2014. str. 295-305 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 703207 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Degradation of azo-dye aqueous solution using TiO2 nanoparticles irradiated with natural solar and artificial solar-like radiation
Autori
Ljubas, Davor ; Turčić, Hrvoje ; Zebić Avdičević, Maja
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
MATRIB 2014-Proceedings
/ Sanja Šolić / Mateja Šnajdar Musa - Zagreb : Hrvatsko društvo za materijale i tribologiju (HDMT), 2014, 295-305
Skup
MATRIB 2014: materials, tribology, recycling
Mjesto i datum
Vela Luka, Hrvatska, 26.06.2014. - 28.06.2014
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
azo dye; Congo Red dye; photocatalysis; solar radiation; artificial solar-like radiation
Sažetak
Wastewaters containing synthetic organic dyes may be harmful to the environment and living organisms and it is very important to remove or degrade them prior to discharge into the environment. Heterogeneous photocatalysis, as one of the Advanced Oxidation Processes (AOPs), could be effective technology in the oxidation/degradation of organic dyes. In this study we used nanoparticles of TiO2 as the semiconductor photocatalysts for the degradation of Congo Red dye aqueous solution (CR). Since TiO2 particles are activated by UV-A radiation, two sources of UV radiation were used – natural solar radiation (contains 3-5% UV-A) and artificial, solar - like radiation, in the form of an UV lamp. Optimal dose of TiO2 of 500 mg/L was determined with artificial lamp experiments and this dose was used for the solar degradation process. In both cases significant potential for the degradation of CR was observed – total decolorization of the solution was achieved within 20-120 minutes. Degradation experiments were followed by changes in absorbance and in total organic carbon content of the solution. CR irradiation without TiO2 nanoparticles in both cases caused no observable changes of the solution.
Izvorni jezik
Engleski
Znanstvena područja
Kemijsko inženjerstvo, Strojarstvo, Temeljne tehničke znanosti
POVEZANOST RADA
Projekti:
120-1253092-3021 - Ekološka prihvatljivost i učinkovitost suvremenih postupaka u obradi voda (Ljubas, Davor, MZOS ) ( CroRIS)
Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb
