Journals / Avrupa Bilim ve Teknoloji Dergisi / 2019 / Sayı: 16

Effect of Boron Doping on Phase Stability of SrAl2O4: Eu+2, Dy+3 Nanofibers

SrAl2O4: Eu+2, Dy+3 Nanoliflerin Faz Kararlılığı Üzerine Bor Katkısının Etkisi

Pages
16–25
Publication Date
2019-08-31
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Consequently, it is determined that boron additive has a significant effect on thermal, mineralogical and morphological properties of SrAl2O4: Eu, Dy structure.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, three varied groups as pristine, europium and dysprosium doped SrAl2O4 and boron doped SrAl2O4:Eu2+, Dy3+ phosphorus materials were prepared.
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Key Findings & Data:As a result of XRD analysis of the synthesized powders the structure was observed to be in monoclinic SrAl2O4 form in the pristine and Eu-Dy doped samples and turn into orthorhombic crystal-structured Sr4Al14O25 structure.
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Conclusion & Impact:Consequently, it is determined that boron additive has a significant effect on thermal, mineralogical and morphological properties of SrAl2O4: Eu, Dy structure.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Lüminesans · Nanolif · Elektroeğirme

Abstract

In this study, three varied groups as pristine, europium and dysprosium doped SrAl2O4 and boron doped SrAl2O4:Eu2+, Dy3+ phosphorus materials were prepared. To see the effect of boron additive on phase stability of nanofibers, different ratios of boron were added. In the experimental studies, as process variables during the electrospinning method; the effect of the applied voltage, the distance between the syringe needle and collector plate were examined. The characterization of phosphorescence samples was carried out with DSC/TG, XRD and SEM. As a result of XRD analysis of the synthesized powders the structure was observed to be in monoclinic SrAl2O4 form in the pristine and Eu-Dy doped samples and turn into orthorhombic crystal-structured Sr4Al14O25 structure. Through examining the SEM photos of nanofibers, its observed that boron additive has a significant effect on nanofiber structure and with the increase in the boron amount, much order and much small-diameter nanofibers occur. Consequently, it is determined that boron additive has a significant effect on thermal, mineralogical and morphological properties of SrAl2O4: Eu, Dy structure.

Özet

Bu çalışmada, katkısız, europyum ve disprosyum katkılı SrAl2O4 ve bor katkılı SrAl2O4: Eu2+, Dy3+ fosfor malzemeleri olmak üzere üç farklı grup hazırlanmıştır. Bor katkısının nanoliflerin faz stabilitesi üzerindeki etkisini görmek için farklı oranlarda bor eklenmiştir. Deneysel çalışmalarda elektroeğirme yönteminde süreç değişkenleri olarak; uygulanan voltajın etkisi, şırınga iğnesi ve toplayıcı plaka arasındaki mesafe incelenmiştir. Fosforesan örneklerinin karakterizasyonu, DSC/TG, XRD ve SEM ile gerçekleştirilmiştir. Sentezlenen tozların XRD analizi sonucunda, yapının katkısız ve Eu-Dy katkılı numunede monoklinik SrAl2O4 formunda olduğu ve ortorombik kristal yapılı Sr4Al14O25 yapısına dönüştüğü gözlemlenmiştir. Nanoliflerin SEM fotograflarını inceleyerek, bor katkısının nanolif yapı üzerinde önemli bir etkiye sahip olduğunu ve bor miktarındaki artışı, daha düzenli ve daha küçük çaplı nanoliflerin meydana geldiği gözlemlenmiştir. Sonuç olarak, bor katkısının SrAl2O4: Eu, Dy yapısının termal, mineralojik ve morfolojik özellikleri üzerinde önemli bir etkisi olduğu belirlenmiştir.

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Cite This Article

EVCİN, A. (2019). Effect of Boron Doping on Phase Stability of SrAl2O4: Eu+2, Dy+3 Nanofibers. Avrupa Bilim ve Teknoloji Dergisi, Sayı: 16, 16–25. https://ajindex.com/articles/471832

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References (12)

  1. Chang C K, Jiang L, Mao D L, Feng C L. “Photoluminescence of 4SrO·7Al2O3 ceramics sintered with the aid of B2O3”. Ceramics International, 30, 285–290, 2004
  2. Lin Y, Tang Z, Zhang Z.” Preparation of Long-Afterglow Sr4Al14O25-Based Luminescent Material and Its Optical Properties”. Materials Letters, 51, 14–18, 2001
  3. Chang C, Yuan Z, Mao D. “Eu2+ activated long persistent strontium aluminate nano scaled phosphor prepared by precipitation method”. Journal of Alloys and Compounds, 415, 220–224, 2006.
  4. Nakauchi D, Okada G, Masanori K, Kawano N, Kawaguchi N, Yanagida T. “Photoluminescence and scintillation properties of Eu-doped strontium aluminate crystals”. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, article in press, 2018.
  5. Hu X, Yang H, Guo T, Shu D, Shan W, Li G, Guo D. “Preparation and properties of Eu and Dy co-doped strontium aluminate long afterglow nanomaterials”. Ceramics International, 44, 7, 7535-7544, 2018.
  6. Yadav RS, Rai SB. Corrigendum to: “Frequency upconversion and downshifting emissions in solution combustion derived Yb3+, Pr3+ co-doped strontium aluminate nano-phosphor: A multi-modal phosphor”. Journal of Luminescence, 199, 528, 2018. García CR, Oliva J, Arroyo A, Garcia-Lobato MA, Gomez-Solis C, Diaz Torres LA. “Photocatalytic activity of bismuth doped SrAl2O4 ceramic powders”. Journal of Photochemistry and Photobiology A: Chemistry, 351, 245-252, 2018
  7. Lai TT, Chang C, Yang CY, Das S, Lu CH. “Influence of Bi2O3 flux in the structural and photoluminescence properties of SrAl2O4:Eu2+ phosphors”. Ceramics International, 39, 159–163, 2013.
  8. Kim B J, Hasan Z, Kim J K. “Synthesis and characterization of long persistence Sr4Al14O25:Eu2+, Dy3+phosphor prepared by combustion method”. Journal of Ceramic Processing Research., 14, 601–605, 2013.
  9. Nag A, Kutty T R N,. “The mechanism of long phosphorescence of SrAl2− xBxO4 (0 Smets S, Rutten J, Hoeks G, Verlijsdonk J. “2SrO · 3Al2O3: Eu2 + and 1.29 (Ba, Ca) O, 6Al2O3: Eu2 + Two New Blue‐Emitting Phosphors Journal of The Electrochemical Society, 136, 2119–2123, 1989.
  10. Shafia E, Bodaghi M, Esposito S, Aghaei A. “A critical role of pH in the combustion synthesis of nano-sized SrAl 2 O 4: Eu 2+, Dy 3+ phosphor”. Ceramics International 40, 4697–4706, 2014.
  11. Liu Y, Lei B, Shi C.” Luminescent properties of a white afterglow phosphor CdSiO3:Dy3+”. Chemistry of Materials, 17, 2108–2113, 2005.
  12. Nag A, Kutty T R N. “Role of B2O3 on the phase stability and long ph