Synthesis of magnesium borates using sodium borate and magnesium sulfate

Körük, Murat; Girgin, İsmail

doi:10.1016/j.jnoncrysol.2009.04.021

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…13 • C at 15 different reaction times, but failed to form a crystal product. 21,22 The common features of the studies that were successful in producing magnesium borate minerals were the utilization of high temperatures ( >100 • C) with a hydrothermal method and extended reaction times. The failure to obtain a product with the desired crystallinity constitutes a problem regarding the investigated procedures.…”

Section: 8−12mentioning

confidence: 99%

Synthesis and characterization of magnesium borate minerals of admontite and mcallisterite obtained via ultrasonic mixing of magnesium oxide and various sources of boron: a novel method

Kıpçak

Derun²,

Pişkin³

2014

Turk J Chem

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Magnesium borates can be used as detergent compounds or hydrocarbon catalyzers and in the ceramics industry for superconductor material manufacture owing to their high elastic coefficient and resistance to corrosion at high temperatures. In the present study, the synthesis of magnesium borate was facilitated via a novel ultrasonic method of mixing and the identification and characterization of the material were carried out via X-Ray diffraction (XRD), Fourier transform infrared (FT-IR), and Raman spectroscopies, and the B 2 O 3 content was determined through titration. The surface morphology was investigated using scanning electron microscopy (SEM). The results of the XRD analysis identified the synthesized borate compounds as admontite [MgO(B 2 O 3)3 .7(H 2 O)], with powder diffraction file (pdf) no 01-076-0540, and mcallisterite [Mg 2 (B 6 O 7 (OH) 6)2 .9(H 2 O)], with pdf no 01-070-1902. The FT-IR and Raman spectra of the obtained samples were similar, with characteristic magnesium borate bands observed in both the infrared and visible regions. The results of the B 2 O 3 content analysis were in compliance with the literature. The investigation of the SEM images indicated that nanoscale minerals with a reaction efficiency ranging between 69% and 82% were obtained.

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Section: 8−12mentioning

confidence: 99%

Synthesis and characterization of magnesium borate minerals of admontite and mcallisterite obtained via ultrasonic mixing of magnesium oxide and various sources of boron: a novel method

Kıpçak

Derun²,

Pişkin³

2014

Turk J Chem

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“…In recent years, the development of magnesium chemical materials is becoming a new focus in inorganic material researches. Many kinds of high value-added magnesium products like magnesium hydroxide [4−7], magnesium oxysulfate, magnesium borate whisker [8], high purity magnesium oxide whiskers, and nano-magnesium oxide [9−11] were prepared in laboratory scale. Among the various products, magnesium oxysulfate compound shows the high crystallinity and aspect ratio which make it a potential retardant material for plastics resin and rubber [12−15], and more attentions have been paid since it is economically attractive and environmentally benign product.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of MgSO4·5Mg(OH)2·2H2O flake powders

Liang

Wang

et al. 2011

J. Cent. South Univ. Technol.

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Magnesium oxysulfate (MgSO 4 ·5Mg(OH) 2 ·2H 2 O) flake powders with an average diameter of 2 µm and a thickness of 0.052 µm were prepared using magnesium sulfate and sodium hydroxide as raw materials by hydrothermal synthesis process. The composition, morphology and structural features of the hydrothermal products were examined with X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The experimental results indicate that in the conditions of n(NaOH)/n(MgSO 4 ) of 1.25, the dosage of w(Na 3 PO 4 ) crystal additives of 1.0% w(MgSO 4 ), stirring for 5 h at 180 °C, the morphology of MgSO 4 ·5Mg(OH) 2 ·2H 2 O products is flaky and laminar, which is a kind of complex magnesium singlecrystal. The recycling of MgSO 4 mother liquor was also investigated to make a full use of the materials and reduce disposal. The results prove that there is no adverse effect on the yield and purity of the products.

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Effect of Eu doping on the thermoluminescence of UV and gamma irradiated Mg₂B₂O₅ nanophosphors

Kumar

Shekhar

et al. 2022

Luminescence

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This article presents the effect of europium (Eu) doping on the thermoluminescence (TL) of ultraviolet (UV‐254 nm) and gamma irradiated triclinic Mg2B2O5 nanophosphors. The diffuse reflectance predicts slight decrease in band gap from 5.18 to 4.99 eV with increasing Eu (1%, 3%, and 5%) content in Mg2B2O5. The TL glow curves of UV irradiated samples comprised of a main peak around 500 K with weak intensity peak/shoulders in low temperature region. Interestingly Eu (3%) doped Mg2B2O5 shows maximum TL intensity with suppression of low temperature shoulder peaks and almost linear UV dose dependent TL response. However, in the case of gamma irradiated Eu (1% and 3% doped) samples, TL glow curve comprises of a main peak around 425–445 K and closely lying peak around 500–515 K with relatively lesser intensity. In case of Eu (5%) doped samples, TL peak around 508 K starts dominating over peak around 425 K. TL of both UV and gamma irradiated samples showed the presence of various deep and shallow defect states within the bandgap of materials having different kinetic parameters, which were determined using TLanal software based on Kiti's general order equation. The present study shows that Eu doped Mg2B2O5 nanophosphors can be tuned for UV and gamma dosimetry.

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Synthesis of magnesium borates using sodium borate and magnesium sulfate

Cited by 7 publications

References 16 publications

Synthesis and characterization of magnesium borate minerals of admontite and mcallisterite obtained via ultrasonic mixing of magnesium oxide and various sources of boron: a novel method

Synthesis and characterization of magnesium borate minerals of admontite and mcallisterite obtained via ultrasonic mixing of magnesium oxide and various sources of boron: a novel method

Synthesis and characterization of MgSO4·5Mg(OH)2·2H2O flake powders

Effect of Eu doping on the thermoluminescence of UV and gamma irradiated Mg₂B₂O₅ nanophosphors

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Synthesis of magnesium borates using sodium borate and magnesium sulfate

Cited by 7 publications

References 16 publications

Synthesis and characterization of magnesium borate minerals of admontite and mcallisterite obtained via ultrasonic mixing of magnesium oxide and various sources of boron: a novel method

Synthesis and characterization of magnesium borate minerals of admontite and mcallisterite obtained via ultrasonic mixing of magnesium oxide and various sources of boron: a novel method

Synthesis and characterization of MgSO4·5Mg(OH)2·2H2O flake powders

Effect of Eu doping on the thermoluminescence of UV and gamma irradiated Mg2B2O5 nanophosphors

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Effect of Eu doping on the thermoluminescence of UV and gamma irradiated Mg₂B₂O₅ nanophosphors