Sol-gel synthesis, characterization and application of selected sub-microsized lanthanide (Ce, Pr, Nd, Tb) ferrites

Opuchovič, Olga; Kreiza, Gediminas; Senvaitienė, Jūratė; Kazlauskas, Karolis; Beganskienė, Aldona; Kareiva, Aivaras

doi:10.1016/j.dyepig.2015.03.017

Cited by 49 publications

(22 citation statements)

References 30 publications

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“…In recent years, there has been an increasing interest in historical paint, materials and different types of decoration and painting techniques [2][3][4]. Inks and dyes are typically found in a wide variety of historical documents, which are usually stored in libraries, museums or archives.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the chemical composition of red pigments and binding media

Čiuladienė¹,

Luckutė²,

Kiuberis³

et al. 2018

chemija

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This study presents the results of investigation of red pigments and binding media used in ancient manuscripts for rubrication and illumination. The commercial compounds were analysed with the aim to create a short data library which could be used for the characterization of different model compositions of red pigments and dyes. Finally, these analytical data will be used for the identification of specimens obtained from ancient manuscripts. The red pigments and binding media were characterized using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM/EDX), X-ray diffraction (XRD) analysis and thermal (TG/DSC) analysis techniques.

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Section: Introductionmentioning

confidence: 99%

Investigation of the chemical composition of red pigments and binding media

Čiuladienė¹,

Luckutė²,

Kiuberis³

et al. 2018

chemija

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“…The colour differ ence ∆E in the CIE(Lab)* system of paints was cal culated according to Eq. (1) [17][18][19]:…”

Section: Colorimetric Measurementsmentioning

confidence: 99%

From model to artefact: Versatile characterization of cinnabar, red lead and realgar red paints for rubrics and miniatures

Čiuladienė¹,

Kareiva²,

Raudonis³

2020

chemija

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This study focuses on the characterization of cinnabar, red lead and realgar paints, since the red colour was very often used for the illuminations and rubrics of medieval manuscript. The commercial pigments (cinnabar (HgS), red lead (Pb3O4), realgar (As4S4)) and binding media (gum Arabic, fish and parchment glue) were used for the preparation of analogous to historical paints. This work is on-going and at this stage, the resulting red paint samples were analysed to create a short data library that could be used to describe the various red paints and their compositions. The obtained paints were characterized before and after accelerated aging using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM/EDX), X-ray diffraction (XRD) and thermal (TG/DSC) analysis techniques. These results of versatile characterization are useful to develop red paint guidelines for the storage and how they affect current and future conservation of these objects.

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“…Nghiên cứu chế tạo vật liệu nano perovskite orthoferrite RFeO3 (R là các nguyên tố đất hiếm như La, Y, Pr, Nd, Ho, Gd,… ) có thành phần, cấu trúc và tính chất mong muốn là một vấn đề thú vị đang thu hút sự quan tâm của các nhà khoa học trong nước và trên thế giới [1][2][3][4][5]. Một trong các orthoferrite đất hiếm đang được quan tâm nghiên cứu có thể kể đến là HoFeO3.…”

Section: Mở đầUunclassified

Synthesis of HoFeO3 Nanomaterials by Citric Acid Sol-gel Method

Tiến¹,

Vương²,

Loi³

2020

NST

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In this study, HoFeO3 nanomaterials with very small particle sizes (< 50 nm) were synthesized using citric acid sol-gel method through hydrolysis of Ho3+ and Fe3+ cations in hot water. Single-phase HoFeO3 was generated after calcination of the as-prepared powder at 750 and 850°C during 1 hour. The UV-Vis spectra at room temperature presented strong areas absorption in the range of 300 ÷ 600 nm with small band gap energy (Eg = 1.93÷2.25 eV). The obtained HoFeO3 nanomaterials exhibited a soft ferromagnetic behaviour with a magnetic coercivity of 33.2 OE.

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Sol-gel synthesis, characterization and application of selected sub-microsized lanthanide (Ce, Pr, Nd, Tb) ferrites

Cited by 49 publications

References 30 publications

Investigation of the chemical composition of red pigments and binding media

Investigation of the chemical composition of red pigments and binding media

From model to artefact: Versatile characterization of cinnabar, red lead and realgar red paints for rubrics and miniatures

Synthesis of HoFeO3 Nanomaterials by Citric Acid Sol-gel Method

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