Optimization method of the solvothermal parameters using Box-Behnken experimental design : the case study of ZnO structural and catalytic tailoring

Kovács, Zoltán (avtor), Molnár, Csanád (avtor), Lavrenčič Štangar, Urška (avtor), Cristea, Vasile-Mircea (avtor), Pap, Zsolt (avtor), Hernadi, Klara (avtor), Baia, Lucian (avtor)

ZnO photocatalysts were synthesized via solvothermal method and a reduced experimental design (Box–Behnken) was applied to investigate the influence of four parameters (temperature, duration, composition of the reaction mixture) upon the photocatalytic activity and the crystal structure of ZnO. The four parameters were correlated with photocatalytic degradation of methyl orange and the ratio of two crystallographic facets ((002) and (100)) using a quadratic model. The quadratic model shows good fit for both responses. The optimization experimental results validated the models. The ratio of the crystal facets shows similar variation as the photocatalytic activity of the samples. The water content of the solvent is the primary factor, which predominantly influence both responses. An explanation was proposed for the effect of the parameters and how the ratio of (002) and (100) crystal facets is influenced and its relation to the photocatalytic activity. The present research laconically describes a case study for an original experimental work, in order to serve as guideline to deal with such complicated subjects as quantifying influence of synthesis parameters upon the catalytic activity of the obtained ZnO.

• Jezik: Angleški jezik
• Ključne besede: Box–Behnken design (BBD), zinc oxide, ZnO, photocatalysis, solvothermal crystallization, optimization
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FKKT - Fakulteta za kemijo in kemijsko tehnologijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: 20 str.
• Številčenje: Vol. 11, iss. 5, art. 1334
• PID: 20.500.12556/RUL-135438
• UDK: 546.47-31
• ISSN pri članku: 2079-4991
• DOI: 10.3390/nano11051334
• COBISS.SI-ID: 64727043
• Datum objave v RUL: 15.03.2022

Gradivo je del revije

• Naslov: Nanomaterials
• Skrajšan naslov: Nanomaterials
• Založnik: MDPI AG
• ISSN: 2079-4991
• COBISS.SI-ID: 523286297

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 19.05.2021

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: Box-Behnken dizajn, cinkov oksid, fotokataliza, solvotermalna kristalizacija, optimizacija