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On the toxicity behaviour of composite polyaniline-zinc oxide photocatalytic nanoparticles and their surrogate chemicals      
Yazarlar
İdil Arslan Alaton
İstanbul Teknik Üniversitesi, Türkiye
Olga Koba Ucun
Fatma Miray Bekbölet
Boğaziçi Üniversitesi, Türkiye
Doç. Dr. Ümit Nazlı TÜRKTEN Doç. Dr. Ümit Nazlı TÜRKTEN
Kırşehir Ahi Evran Üniversitesi, Türkiye
Prof. Dr. Yunus KARATAŞ Prof. Dr. Yunus KARATAŞ
Kırşehir Ahi Evran Üniversitesi, Türkiye
Özet
The acute toxic effect of home-made polyaniline-zinc oxide (PANI-ZnO) nanocomposite photocatalyst samples was investigated. Toxicity behaviour was compared with that of their surrogates PANI-emeraldine base (PANIEB), PANI-emeraldine salt (PANI-ES) and zinc oxide (ZnO). The freshwater crustacean Daphnia magna reacted more sensitively to the exposure than the marine photobacterium Vibrio fischeri and thus higher acute toxicity levels were recorded for Daphnia magna. The toxicity response increased with exposure time for both tested organisms. The hydrophobic PANI-EB was non-toxic, whereas ZnO nanoparticles were toxic towards both test organisms and the main reason of the toxicity of the PANI-ZnO composites. The toxicity behaviour changed with ZnO content rather than the PANI-ZnO nanocomposite synthesis type (in-situ polymerization or hybridization method). The acute toxicity also increased when the PANI-ZnO samples were subjected to UV-A (photocatalytic) treatment (conditions:0.25 g/L catalyst; pH=7.0; t = 180 min; I0 =0.5 W/L). A relationship between the photoinduced Zn(II) release and acute toxicity increase after photocatalytic treatment was evident.
Anahtar Kelimeler
Exposure time | Heterogenenous photocatalysis | PANI-ZnO nanocomposite catalysts | Vibrio fischeri and Daphnia magna toxicity | Zn(II) release
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı APPLIED CATALYSIS A-GENERAL
Dergi ISSN 0926-860X
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili Türkçe
Basım Tarihi 06-2023
Cilt No 659
Sayı 1
Sayfalar 119199 / 119199
Doi Numarası 10.1016/j.apcata.2023.119199
Makale Linki http://dx.doi.org/10.1016/j.apcata.2023.119199