Energy efficient BPA degradation through F-etched-Ni-Sn-C-N-TiO2 nano-layered thin film reactors

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dc.authorscopusid35176620600
dc.contributor.authorTunçal, Tolga
dc.date.accessioned2022-05-11T14:17:29Z
dc.date.available2022-05-11T14:17:29Z
dc.date.issued2020
dc.departmentFakülteler, Çorlu Mühendislik Fakültesi, Çevre Mühendisliği Bölümü
dc.description.abstractIncreasing wastewater generation rates and micro-pollutant levels in environmental matrices constrain energy-efficient and fast control technologies. In this study, different optical and geometrical photocatalytic reactor (PCR) design have been investigated experimentally using BPA molecule as a model pollutant. N-TiO2, Ni-N-TiO2, Sn-NTiO2, Ni-Sn-C-N-TiO2 and F-etched-Ni-Sn-C-N-TiO2 nano-layered thin films (TFs) have been produced and employed as immobilized nano-catalysts. An ultrasound-assisted fluorine (F) etching method was applied to Sn and Ni co-doped TFs. The synthesized TFs were characterized by SEM-EDX, AFM, XPS, FT-IR and UV-Vis spectroscopies. Three different types of PCRs with different geometrical and optical design were operated using different light sources, wavelengths and technologies. A box type photoreactor, vertical and horizontal coated quartz tubular reactors (CQTRs) were fabricated and their performances were evaluated considering BPA degradation kinetics and unit energy consumption figures (xi, kJ energy used mg(-1) BPA(removed)). Vis, UV A, UV C lamps and SMD 5050 blue (450 nm) and UV (365 nm) LEDs were employed as irradiation sources to initiate photocatalytic reactions. The highest pseudo first-order reaction rate (k) and the lowest xi value were obtained by F-etched-Sn-Ni-C-N-TiO2, positioned in vertical type reactor under UV LED irradiation as 20.5 min(-1) and 56 kJ mg(-1) BPA(removed) respectively. Whereas, the highest BPA degradation rate (k) and the lowest xi value for the box type reactor under 257 nm UV C irradiation were estimated as 20.3 min(-1) and 1581 kJ mg(-1) BPA(removed) respectively for F-etched-Sn-Ni-C-N-TiO2. Although similar reaction rates were obtained for both reactor types, energy consumption was lowered approximately 28-fold in the developed vertical positioned reactor system in addition to several other benefits. While UV LED based-PCR yielded elevated levels of BPA removal efficiency, 257 nm UV C irradiation did not contribute to BPA degradation when positioned vertically. Furthermore, obtained experimental results also revealed that F-etched-Sn-Ni-C-N-TiO2 has significant potential to function under solar irradiation. (C) 2020 Elsevier B.V. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkey TUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [111Y209]
dc.description.sponsorshipThis paper is dedicated to the memory of Prof. Dr. Orhan USLU who supported the Author during his all academic studies. The work is founded by The Scientific and Technological Research Council of Turkey TUBITAK (Project 111Y209) and Cerkezkoy Organized Industrial Zone Management, Turkey.
dc.identifier.doi10.1016/j.eti.2020.101174
dc.identifier.issn2352-1864
dc.identifier.scopus2-s2.0-85092009208
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.eti.2020.101174
dc.identifier.urihttps://hdl.handle.net/20.500.11776/6374
dc.identifier.volume20
dc.identifier.wosWOS:000598206600006
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorTunçal, Tolga
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofEnvironmental Technology & Innovation
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBPA degradation
dc.subjectPhotocatalysis
dc.subjectThin film
dc.subjectLEDs
dc.subjectFluorine etching
dc.subjectEnergy consumption
dc.subjectAOPs
dc.titleEnergy efficient BPA degradation through F-etched-Ni-Sn-C-N-TiO2 nano-layered thin film reactors
dc.typeArticle

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