Unravelling the synergy of Ce dopant and surface oxygen vacancies confined in FeTiO3 perovskite for peroxymonosulfate activated degradation of wide range of pollutants

Şimşek, Esra Bilgin; TUNA, Özlem

doi:10.1016/j.jpcs.2023.111276

Unravelling the synergy of Ce dopant and surface oxygen vacancies confined in FeTiO3 perovskite for peroxymonosulfate activated degradation of wide range of pollutants

Yazarlar (2)

Esra Bilgin Şimşek
Gebze Teknik Üniversitesi, Türkiye

Doç. Dr. Özlem TUNA Yalova Üniversitesi, Türkiye

Makale Türü	Özgün Makale
Makale Alt Türü	SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı	Journal of Physics and Chemistry of Solids
Dergi ISSN	0022-3697 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler	SCI-Expanded
Dergi Grubu	Q2
Makale Dili	İngilizce
Basım Tarihi	05-2023
Cilt No	176
Sayı	1
Sayfalar	111276 /
DOI Numarası	10.1016/j.jpcs.2023.111276
Makale Linki	http://dx.doi.org/10.1016/j.jpcs.2023.111276

Özet

In this study, ferrite titanate (FeTiO3) as a low-cost, eco-friendly and a new type of perovskite catalyst was utilized in sulfate-based advanced oxidation process. Structural and chemical modulation strategy was implemented by doping cerium (Ce) atoms via hydrothermal technique. The morphological, optical and structural properties of the catalysts were investigated with the aid of XRD, SEM-EDS, TEM, XPS, UV–vis DRS and PL analyses. XPS analysis confirmed that Ce existed as Ce(III) and Ce(IV) oxidation states, indicating the presence of Ce(III)/Ce(IV) redox couple, which assisted the oxidative degradation process. The introduction of Ce into the FeTiO3 structure also resulted in higher content of oxygen vacancies, regulated the redox cycle, and reduced the energy barrier for Fenton activation. The photocatalytic performances of Ce-doped FeTiO3 perovskites for peroxymonosulfate activation were investigated towards removal of sunset yellow azo dye which is one of the most used synthetic food dyes. The effects of Ce concentrations in FeTiO3, initial solution pH, water media, scavengers and re-usability were studied systematically. Moreover, the photodegradation activities of the catalyst with respect to different dye and antibiotic components were also investigated. The catalyst was proven to be stable after eight consecutive runs. The findings showed that the incorporation of Ce as a peroxymonosulfate activator greatly facilitated the degradation of water pollutants.

Anahtar Kelimeler

Cerium | FeTiO3 | Oxygen vacancy | Peroxymonosulfate | Photocatalysis

Science Direct

BM Sürdürülebilir Kalkınma Amaçları

Atıf Sayıları
SCOPUS	31

Unravelling the synergy of Ce dopant and surface oxygen vacancies confined in FeTiO3 perovskite for peroxymonosulfate activated degradation of wide range of pollutants

Dergi Adı	JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Yayıncı	Elsevier Ltd
Açık Erişim	Hayır
ISSN	0022-3697
E-ISSN	1879-2553
CiteScore	9,2
SJR	0,816
SNIP	0,991

Unravelling the synergy of Ce dopant and surface oxygen vacancies confined in FeTiO3 perovskite for peroxymonosulfate activated degradation of wide range of pollutants

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