Low-Temperature Co-Precipitation Synthesis of HoFeO<sub>3</sub> Nanoparticles

Low-Temperature Co-Precipitation Synthesis of HoFeO<sub>3</sub> Nanoparticles

In this research, we investigate and discuss the characteristics of HoFeO<sub>3</sub> nanoparticles synthesized by the co-precipitation method at low temperature (t° ≤ 4 °C). The single-phase HoFeO<sub>3</sub> samples with the orthorhombic structure formed after annealing of...

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Bibliographic Details
Main Authors: Vo Quang Mai, Nguyen Anh Tien
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Crystals
Subjects:
HoFeO<sub>3</sub>
nanoparticles
low-temperature
co-precipitation
optical and magnetic properties
Online Access:https://www.mdpi.com/2073-4352/11/3/238
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spelling doaj-4e50d2127a434038bd43358d8718888b2021-02-27T00:06:14ZengMDPI AGCrystals2073-43522021-02-011123823810.3390/cryst11030238Low-Temperature Co-Precipitation Synthesis of HoFeO<sub>3</sub> NanoparticlesVo Quang Mai0Nguyen Anh Tien1Faculty of Pedagogy in Natural Sciences, Sai Gon University, Ho Chi Minh City 700000, VietnamInformetrics Research Group, Ton Duc Thang University, Ho Chi Minh City 700000, VietnamIn this research, we investigate and discuss the characteristics of HoFeO<sub>3</sub> nanoparticles synthesized by the co-precipitation method at low temperature (t° ≤ 4 °C). The single-phase HoFeO<sub>3</sub> samples with the orthorhombic structure formed after annealing of the precipitates at different temperatures up to 950 °C. The annealed HoFeO<sub>3</sub> nanoparticles have an average crystal size of 10–20 nm (SEM, TEM). UV-Vis spectrum of HoFeO<sub>3</sub> sample annealed at 750 °C showed strong UV and Vis absorption with small optical energy gap (E<sub>g</sub> = 1.56 eV). In the range temperature of 100–300 K, the HoFeO<sub>3</sub> samples showed superparamagnetic behaviour at 5 kOe with high magnetization (M<sub>s</sub> = 1.3–2.4 emu/g) and very low susceptibility (χ << 1).https://www.mdpi.com/2073-4352/11/3/238HoFeO<sub>3</sub>nanoparticleslow-temperatureco-precipitationoptical and magnetic properties
collection DOAJ
language English
format Article
sources DOAJ
author Vo Quang Mai
Nguyen Anh Tien
spellingShingle Vo Quang Mai
Nguyen Anh Tien
Low-Temperature Co-Precipitation Synthesis of HoFeO<sub>3</sub> Nanoparticles
Crystals
HoFeO<sub>3</sub>
nanoparticles
low-temperature
co-precipitation
optical and magnetic properties
author_facet Vo Quang Mai
Nguyen Anh Tien
author_sort Vo Quang Mai
title Low-Temperature Co-Precipitation Synthesis of HoFeO<sub>3</sub> Nanoparticles
title_short Low-Temperature Co-Precipitation Synthesis of HoFeO<sub>3</sub> Nanoparticles
title_full Low-Temperature Co-Precipitation Synthesis of HoFeO<sub>3</sub> Nanoparticles
title_fullStr Low-Temperature Co-Precipitation Synthesis of HoFeO<sub>3</sub> Nanoparticles
title_full_unstemmed Low-Temperature Co-Precipitation Synthesis of HoFeO<sub>3</sub> Nanoparticles
title_sort low-temperature co-precipitation synthesis of hofeo<sub>3</sub> nanoparticles
publisher MDPI AG
series Crystals
issn 2073-4352
publishDate 2021-02-01
description In this research, we investigate and discuss the characteristics of HoFeO<sub>3</sub> nanoparticles synthesized by the co-precipitation method at low temperature (t° ≤ 4 °C). The single-phase HoFeO<sub>3</sub> samples with the orthorhombic structure formed after annealing of the precipitates at different temperatures up to 950 °C. The annealed HoFeO<sub>3</sub> nanoparticles have an average crystal size of 10–20 nm (SEM, TEM). UV-Vis spectrum of HoFeO<sub>3</sub> sample annealed at 750 °C showed strong UV and Vis absorption with small optical energy gap (E<sub>g</sub> = 1.56 eV). In the range temperature of 100–300 K, the HoFeO<sub>3</sub> samples showed superparamagnetic behaviour at 5 kOe with high magnetization (M<sub>s</sub> = 1.3–2.4 emu/g) and very low susceptibility (χ << 1).
topic HoFeO<sub>3</sub>
nanoparticles
low-temperature
co-precipitation
optical and magnetic properties
url https://www.mdpi.com/2073-4352/11/3/238
work_keys_str_mv AT voquangmai lowtemperaturecoprecipitationsynthesisofhofeosub3subnanoparticles
AT nguyenanhtien lowtemperaturecoprecipitationsynthesisofhofeosub3subnanoparticles
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