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Decolorization and Oxidation of Acid Blue 80 in Homogeneous and Heterogeneous Phases by Selected AOP Processes

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F22%3A39919111" target="_blank" >RIV/00216275:25310/22:39919111 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/60460709:41310/22:91235

  • Výsledek na webu

    <a href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mdpi.com%2F2073-4344%2F12%2F6%2F644%2Fpdf&data=05%7C01%7Cjiri.palarcik%40upce.cz%7Cab9cbc90dc7c4f2ea70c08da4cf37117%7C49307c8db7bd42d1957063cbd63caf1b%7C0%7C0%7C637906905847417361%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=BHiLxJqIyvDj5QRsLB3GKOa%2F45IxVHAT%2BfeehAzF%2BnU%3D&reserved=0" target="_blank" >https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mdpi.com%2F2073-4344%2F12%2F6%2F644%2Fpdf&data=05%7C01%7Cjiri.palarcik%40upce.cz%7Cab9cbc90dc7c4f2ea70c08da4cf37117%7C49307c8db7bd42d1957063cbd63caf1b%7C0%7C0%7C637906905847417361%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=BHiLxJqIyvDj5QRsLB3GKOa%2F45IxVHAT%2BfeehAzF%2BnU%3D&reserved=0</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3390/catal12060644" target="_blank" >10.3390/catal12060644</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Decolorization and Oxidation of Acid Blue 80 in Homogeneous and Heterogeneous Phases by Selected AOP Processes

  • Popis výsledku v původním jazyce

    This paper is a kinetic study that compares the rate of decolorization and subsequently the mineralization of Acid Blue 80 in model dyeworks wastewater, both in the homogeneous phase using the Fenton and photo-Fenton reactions, UV-C and UVC/H2O2 processes, and in the heterogeneous phase, where the proven commercial photocatalysts P25, P90, and AV01 based on TiO2 were used. The influence of pH of the environment was studied and in the case of the Fenton reaction, the influence of the concentration of catalyzing Fe2+ ions on the rate of decolorization of the model wastewater was also studied. The optimal molar ratio of H2O2/Fe2+ was 10:1. For describing the reaction kinetics, first-order speed constants were best-suited. In all applied processes, the dye chromophore degraded, which was accompanied by a quantitative decolorization of the model wastewater. Subsequently, the mineralization of colorless intermediate products was studied through a decrease in COD or, more precisely, TOC. The mineralization efficiency in the homogeneous phase ranged between 18.6 and 97.1% after 24 h. In the case of heterogeneous photocatalysis, it ranged between 79.6 and 97.3% after 24 h, with efficiency declining in the order P90 &gt; P25 &gt; AV01.

  • Název v anglickém jazyce

    Decolorization and Oxidation of Acid Blue 80 in Homogeneous and Heterogeneous Phases by Selected AOP Processes

  • Popis výsledku anglicky

    This paper is a kinetic study that compares the rate of decolorization and subsequently the mineralization of Acid Blue 80 in model dyeworks wastewater, both in the homogeneous phase using the Fenton and photo-Fenton reactions, UV-C and UVC/H2O2 processes, and in the heterogeneous phase, where the proven commercial photocatalysts P25, P90, and AV01 based on TiO2 were used. The influence of pH of the environment was studied and in the case of the Fenton reaction, the influence of the concentration of catalyzing Fe2+ ions on the rate of decolorization of the model wastewater was also studied. The optimal molar ratio of H2O2/Fe2+ was 10:1. For describing the reaction kinetics, first-order speed constants were best-suited. In all applied processes, the dye chromophore degraded, which was accompanied by a quantitative decolorization of the model wastewater. Subsequently, the mineralization of colorless intermediate products was studied through a decrease in COD or, more precisely, TOC. The mineralization efficiency in the homogeneous phase ranged between 18.6 and 97.1% after 24 h. In the case of heterogeneous photocatalysis, it ranged between 79.6 and 97.3% after 24 h, with efficiency declining in the order P90 &gt; P25 &gt; AV01.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    20701 - Environmental and geological engineering, geotechnics

Návaznosti výsledku

  • Projekt

  • Návaznosti

    S - Specificky vyzkum na vysokych skolach

Ostatní

  • Rok uplatnění

    2022

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    Catalysts

  • ISSN

    2073-4344

  • e-ISSN

    2073-4344

  • Svazek periodika

    12

  • Číslo periodika v rámci svazku

    6

  • Stát vydavatele periodika

    CH - Švýcarská konfederace

  • Počet stran výsledku

    14

  • Strana od-do

    644

  • Kód UT WoS článku

    000818150200001

  • EID výsledku v databázi Scopus

    2-s2.0-85131698451