Photocatalytic degradation of Reactive Red 195 using anatase/brookite TiO2 mesoporous nanoparticles

dc.contributor.author	Τζίκαλος, Νικόλαος	el
dc.contributor.author	Μπελέση, Βασιλική	el
dc.contributor.author	Λαμπροπούλου, Δήμητρα	el
dc.date.accessioned	2015-06-07T20:45:23Z
dc.date.available	2015-06-07T20:45:23Z
dc.date.issued	2015-06-07
dc.identifier.uri	http://hdl.handle.net/11400/15553
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://link.springer.com	en
dc.subject	Φωτοκατάλυση
dc.subject	Photocatalysis
dc.title	Photocatalytic degradation of Reactive Red 195 using anatase/brookite TiO2 mesoporous nanoparticles	en
heal.type	journalArticle
heal.secondaryTitle	optimization using response surface methodology (RSM) and kinetics studies	en
heal.classification	Art
heal.classification	Technology
heal.classification	Τέχνη
heal.classification	Τεχνολογία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85007461
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	N/A-Τέχνη
heal.classificationURI	N/A-Τεχνολογία
heal.identifier.secondary	DOI: 10.1007/s11356-012-1106-7
heal.language	en
heal.access	campus
heal.publicationDate	2013
heal.bibliographicCitation	Tzikalos, N., Belessi, V. and Lambropoulou, D. (2013) Photocatalytic degradation of Reactive Red 195 using anatase/brookite TiO2 mesoporous nanoparticles: Optimization using response surface methodology (RSM) and kinetics studies. "Environmental Science and Pollution Research", 20 (4), p.2305-2320	en
heal.abstract	In the present study, the photocatalytic degradation of Reactive Red 195 (RR195) from aqueous samples under UV-A irradiation by using anatase/brookite TiO2 (A/B TiO2) mesoporous nanoparticles has been investigated. Batch experiments were conducted to study the effects of the main parameters affecting the photocatalytic process. The effects and interactions of most influenced parameters, such as substrate concentration and catalyst load, were evaluated and optimized by using a central composite design model and a response surface methodology. The results indicated that the dye degradation efficiency in the experimental domain investigated was mainly affected by the tested variables, as well as their interaction effects. Analysis of variance showed a high coefficient of determination value (R2 = 0. 9947), thus ensuring a satisfactory adjustment of the first-order regression model (2FI model) with the experimental data. The obtained results also indicate that catalyst loading plays an important role in determining the removal efficiency of RR195 attributable to both photodegradation and adsorption process. Under optimal conditions (initial dye concentration (50 mg/L) and catalyst loading (2,000 mg/L), A/B TiO2 showed similar removal efficiency compared to that of commercial titania (Degussa P25). Also, at these conditions, complete degradation of RR195 can be achieved by both catalysts within 15 min under UV-A irradiation. The experiments demonstrated that dye removal on the prepared A/B TiO2 was facilitated by the synergistic effects between adsorption and photocatalysis. Photocatalytic mineralization of RR195 was monitored by total organic carbon. The recycling experiments confirmed the stability of the catalyst.	en
heal.journalName	Environmental Science and Pollution Research	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true