Photocatalytic properties of Ni1-xFexO nanoparticles synthesized by a freeze-drying process

被引：11

作者：

de Brito, Alex Soares ^{[1
]}

Oliveira, Aline Alves ^{[1
]}

Valerio-Cuadros, Marlon Ivan ^{[1
,2
]}

Tupan, Lilian Felipe da Silva ^{[1
,3
]}

Cid, Cristiane Campos Pla ^{[4
]}

Macruz, Paula Derksen ^{[5
]}

Nippes, Ramiro Picoli ^{[5
]}

Zanuto, Vitor Santaella ^{[1
]}

dos Santos, Onelia Aparecida Andreo

Paesano Jr, Andrea ^{[1
,6
]}

机构：

[1] Univ Estadual Maringa, Dept Fis, Ave Colombo 5790, BR-87020900 Maringa, PR, Brazil

[2] Univ Nacl Mayor San Marcos, Fac Ciencias Fis, Lima, Peru

[3] Ctr Univ Inga, Maringa, PR, Brazil

[4] Univ Fed Santa Catarina, Dept Fis, Florianopolis, SC, Brazil

[5] Univ Estadual Maringa, Dept Engn Quim, Maringa, PR, Brazil

[6] Univ Fed Rio Grande do Norte, Dept Fis Teor & Expt, Natal, RN, Brazil

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2023年 / 299卷

关键词：

Fe-doped NiO; Nanoparticles; Freeze-drying; Catalysis; Photocatalytic properties; CARBON-PASTE ELECTRODE; NIO NANOPARTICLES; OPTICAL-PROPERTIES; ZNO NANOPARTICLES; DEGRADATION; SUBSTRATE;

D O I：

10.1016/j.matchemphys.2023.127488

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ni1-xFexO nanoparticles were synthesized by heat treatment at 600 degrees C of the powder resulting from lyophilization of the aqueous mixture of nickel and iron acetate, and their photocatalytic properties were tested. The nano -particles were preliminarily characterized by X-ray diffraction, transmission electron microscopy, Fourier -transform infrared spectroscopy, and UV-VIS diffuse reflectance spectroscopy. The results revealed mono -phasic samples up to x = 0.04 and that increasing iron concentration decreased the particle size and bandgap. The photocatalytic activity of Ni1-xFexO (x = 0.00, 0.02 and x = 0.04) samples under UV irradiation was investigated using the Reactive Blue 250 as a molecule test. Photocatalytic tests showed that Ni0.98Fe0.02O nanoparticles performed the best, which was attributed to the bandgap of this sample, presenting the smallest among the tested samples.

引用

页数：9

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