Building synergism through heterojunction of n-CaTiO3 with p-CaFe2O4 for upgraded photocatalytic degradation of pharmaceuticals

Şimşek, Esra Bilgin; TUNA, Özlem

doi:10.1016/j.powtec.2022.117945

Building synergism through heterojunction of n-CaTiO3 with p-CaFe2O4 for upgraded photocatalytic degradation of pharmaceuticals

Yazarlar (2)

Esra Bilgin Şimşek
Yalova 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	Powder Technology
Dergi ISSN	0032-5910 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler	SCI-Expanded
Dergi Grubu	Q1
Makale Dili	İngilizce
Basım Tarihi	10-2022
Cilt No	411
Sayı	1
Sayfalar	117945 /
DOI Numarası	10.1016/j.powtec.2022.117945
Makale Linki	http://dx.doi.org/10.1016/j.powtec.2022.117945

Özet

Herein, n-type CaTiO3 was constructed with p-type CaFe2O4 through in-situ growth method and the as-prepared heterostructure (CTO@CFO) was tested in photocatalytic degradation of persistent pharmaceutical under simulated sunlight. The heterojunction could harvest more visible light, suppress recombination owing to new oxygen vacancies and strong interfacial interaction. SEM and TEM images verified the attachment of tiny-rod CaFe2O4 around CaTiO3 nanoplates while the CaFe2O4 growth was observed by XRD and HRTEM analyses. Benefiting from p-n heterojunction, the optimal CTO@CFO(0.50) catalyst displayed effective photocatalytic degradation of tetracycline antibiotic (80.81%) which was superior to that of pristine CaTiO3 (20.8%) and CaFe2O4 (45.1%) catalysts. Radical scavenging tests showed that the photo-induced holes were the main active species in the reaction and the underlying degradation mechanism was discussed. This study examines a novel p-n heterojunction between titanate and ferrite type materials that contribute a scientific basis for design of efficient and cost-effective photocatalysts.

Anahtar Kelimeler

CaFe2O4 | CaTiO3 | Heterojunction | Perovskite | Photocatalytic degradation

Science Direct

BM Sürdürülebilir Kalkınma Amaçları

Atıf Sayıları
SCOPUS	23

Building synergism through heterojunction of n-CaTiO3 with p-CaFe2O4 for upgraded photocatalytic degradation of pharmaceuticals

Dergi Adı	POWDER TECHNOLOGY
Yayıncı	Elsevier B.V.
Açık Erişim	Hayır
ISSN	0032-5910
E-ISSN	1873-328X
CiteScore	9,0
SJR	0,971
SNIP	1,522

Building synergism through heterojunction of n-CaTiO3 with p-CaFe2O4 for upgraded photocatalytic degradation of pharmaceuticals

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