Optical and magnetic properties of nano-crystalline orthoferrite holmium synthesized using egg-white precursor

Nguyen Thi Kim Chung; Nguyen Anh Tien; Valentina Olegovna Mittova; Chau Hong Diem; Nguyen Thi Truc Linh; Do Tra Huong; Nguyen Van Hung; Irina Yakovlevna Mittova; Bui Xuan Vuong

doi:10.1007/s10971-022-05914-w

Optical and magnetic properties of nano-crystalline orthoferrite holmium synthesized using egg-white precursor

Nguyen Thi Kim Chung
, Nguyen Anh Tien
, Valentina Olegovna Mittova
, Chau Hong Diem
, Nguyen Thi Truc Linh
, Do Tra Huong
, Nguyen Van Hung
, Irina Yakovlevna Mittova
, Bui Xuan Vuong

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

This study reports the first holmium orthoferrite nanocrystallite synthesized via the sol–gel method using egg white (EW), through the hydrolysis of Ho (III) and Fe (III) cations in boiling water (t° > 95 °C). The holmium orthoferrite was characterized by TG-DSC, PXRD, EDX, TEM, UV–Vis, and VSM techniques. Single-phase HoFeO₃ was formed after calcination of the precursor at different temperatures up to 800 °C for 60 min. The PXRD and TEM results showed that the average crystallite sizes of all HoFeO₃ samples were in the range of 20–30 nm. The obtained HoFeO₃ nanopowders have strong absorption in the UV region (λ = 200÷400 nm) and visible region (λ = 400÷600 nm). Compared to previous studies, the holmium orthoferrite synthesized in this work exhibited larger magnetic parameters (H_c, M_r, and M_s), but a lower band gap energy value. These findings demonstrate their potential use not only as photocatalysts, but also as magnetic materials. [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	239-245
Number of pages	7
Journal	Journal of Sol-Gel Science and Technology
Volume	104
Issue number	1
DOIs	https://doi.org/10.1007/s10971-022-05914-w
State	Published - 1 Oct 2022
Externally published	Yes

Keywords

Band gap
Egg white
Magnetic properties
Nanocrystals
Orthoferrite holmium

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
General Chemistry
Biomaterials
Condensed Matter Physics
Materials Chemistry

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10.1007/s10971-022-05914-w

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@article{2418af8e0ed047c6a1e2ba5331f4af54,

title = "Optical and magnetic properties of nano-crystalline orthoferrite holmium synthesized using egg-white precursor",

abstract = "This study reports the first holmium orthoferrite nanocrystallite synthesized via the sol–gel method using egg white (EW), through the hydrolysis of Ho (III) and Fe (III) cations in boiling water (t° > 95 °C). The holmium orthoferrite was characterized by TG-DSC, PXRD, EDX, TEM, UV–Vis, and VSM techniques. Single-phase HoFeO3 was formed after calcination of the precursor at different temperatures up to 800 °C for 60 min. The PXRD and TEM results showed that the average crystallite sizes of all HoFeO3 samples were in the range of 20–30 nm. The obtained HoFeO3 nanopowders have strong absorption in the UV region (λ = 200÷400 nm) and visible region (λ = 400÷600 nm). Compared to previous studies, the holmium orthoferrite synthesized in this work exhibited larger magnetic parameters (Hc, Mr, and Ms), but a lower band gap energy value. These findings demonstrate their potential use not only as photocatalysts, but also as magnetic materials. [Figure not available: see fulltext.]",

keywords = "Band gap, Egg white, Magnetic properties, Nanocrystals, Orthoferrite holmium",

author = "Chung, \{Nguyen Thi Kim\} and Tien, \{Nguyen Anh\} and Mittova, \{Valentina Olegovna\} and Diem, \{Chau Hong\} and Linh, \{Nguyen Thi Truc\} and Huong, \{Do Tra\} and \{Van Hung\}, Nguyen and Mittova, \{Irina Yakovlevna\} and Vuong, \{Bui Xuan\}",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.",

year = "2022",

month = oct,

day = "1",

doi = "10.1007/s10971-022-05914-w",

language = "English",

volume = "104",

pages = "239--245",

journal = "Journal of Sol-Gel Science and Technology",

issn = "0928-0707",

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TY - JOUR

T1 - Optical and magnetic properties of nano-crystalline orthoferrite holmium synthesized using egg-white precursor

AU - Chung, Nguyen Thi Kim

AU - Tien, Nguyen Anh

AU - Mittova, Valentina Olegovna

AU - Diem, Chau Hong

AU - Linh, Nguyen Thi Truc

AU - Huong, Do Tra

AU - Van Hung, Nguyen

AU - Mittova, Irina Yakovlevna

AU - Vuong, Bui Xuan

PY - 2022/10/1

Y1 - 2022/10/1

N2 - This study reports the first holmium orthoferrite nanocrystallite synthesized via the sol–gel method using egg white (EW), through the hydrolysis of Ho (III) and Fe (III) cations in boiling water (t° > 95 °C). The holmium orthoferrite was characterized by TG-DSC, PXRD, EDX, TEM, UV–Vis, and VSM techniques. Single-phase HoFeO3 was formed after calcination of the precursor at different temperatures up to 800 °C for 60 min. The PXRD and TEM results showed that the average crystallite sizes of all HoFeO3 samples were in the range of 20–30 nm. The obtained HoFeO3 nanopowders have strong absorption in the UV region (λ = 200÷400 nm) and visible region (λ = 400÷600 nm). Compared to previous studies, the holmium orthoferrite synthesized in this work exhibited larger magnetic parameters (Hc, Mr, and Ms), but a lower band gap energy value. These findings demonstrate their potential use not only as photocatalysts, but also as magnetic materials. [Figure not available: see fulltext.]

AB - This study reports the first holmium orthoferrite nanocrystallite synthesized via the sol–gel method using egg white (EW), through the hydrolysis of Ho (III) and Fe (III) cations in boiling water (t° > 95 °C). The holmium orthoferrite was characterized by TG-DSC, PXRD, EDX, TEM, UV–Vis, and VSM techniques. Single-phase HoFeO3 was formed after calcination of the precursor at different temperatures up to 800 °C for 60 min. The PXRD and TEM results showed that the average crystallite sizes of all HoFeO3 samples were in the range of 20–30 nm. The obtained HoFeO3 nanopowders have strong absorption in the UV region (λ = 200÷400 nm) and visible region (λ = 400÷600 nm). Compared to previous studies, the holmium orthoferrite synthesized in this work exhibited larger magnetic parameters (Hc, Mr, and Ms), but a lower band gap energy value. These findings demonstrate their potential use not only as photocatalysts, but also as magnetic materials. [Figure not available: see fulltext.]

KW - Band gap

KW - Egg white

KW - Magnetic properties

KW - Nanocrystals

KW - Orthoferrite holmium

UR - https://www.scopus.com/pages/publications/85135564055

U2 - 10.1007/s10971-022-05914-w

DO - 10.1007/s10971-022-05914-w

M3 - Article

AN - SCOPUS:85135564055

SN - 0928-0707

VL - 104

SP - 239

EP - 245

JO - Journal of Sol-Gel Science and Technology

JF - Journal of Sol-Gel Science and Technology

IS - 1

ER -

Optical and magnetic properties of nano-crystalline orthoferrite holmium synthesized using egg-white precursor

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