EFFICIENT AND FACILE SYNTHESIS OF HYDROXY-FUNCTIONALIZED HEXAGONAL BORON NITRIDE NANOSHEETS BY ION-ASSISTED LIQUID PHASE EXFOLIATION METHOD

Gülşah Yaman Uzunoğlu

doi:10.31796/ogummf.1648475

EN TR

EFFICIENT AND FACILE SYNTHESIS OF HYDROXY-FUNCTIONALIZED HEXAGONAL BORON NITRIDE NANOSHEETS BY ION-ASSISTED LIQUID PHASE EXFOLIATION METHOD

Abstract

Hexagonal boron nitride (h-BN) nanosheets have attracted significant attention due to their unique mechanical, thermal, and electronic properties. Their biocompatibility, thermal conductivity, chemical stability, and versatility make them indispensable in cutting-edge technologies. Hydroxy-functionalized h-BN nanosheets (h-BNNS-OH) exhibit immense potential in various applications, including electrochemical energy storage, drug delivery systems, and heat spreaders in thermal management systems. This study focuses on the hydrothermally ion-assisted liquid-phase exfoliation of h-BN powder to produce few-layer h-BNNS-OH. The exfoliation process involves hydrothermal treatment of bulk h-BN in the presence of concentrated aqueous solution of KOH and NaOH at 180 °C, followed by sonication for dispersion of h-BNNS-OH in water. Characterization of h-BNNSs was performed using powder X-ray diffraction (XRD), Raman spectroscopy, Fourier-transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). The resulting exfoliated h-BNNSs are hydroxyl-functionalized on their surface. This study demonstrates the effectiveness of the successive execution of the hydrothermal treatment in the presence of excess alkali metal hydroxides and probe sonication as a facile and efficient exfoliation process, resulting in dispersions of h-BNNS-OH in water with remarkably high stability (beyond 9 weeks) and high product yield (17 %) at only one exfoliation cycle.

Keywords

liquid-phase exfoliation, hexagonal boron nitride, hydroxy-functionalized hexagonal boron nitride nanosheets, hydroxylated hexagonal boron nitride nanosheets, probe sonication

İYON DESTEKLİ SIVI FAZLI EKFOLİASYON YÖNTEMİYLE HİDROKSİ FONKSİYONLU HEKZAGONAL BOR NİTRÜR NANOTABAKALARIN ETKİN VE KOLAY SENTEZİ

Abstract

Hekzagonal bor nitrür (h-BN) nanotabakalar, sahip oldukları sıra dışı mekanik, termal ve elektronik özellikler sayesinde son yıllarda önemli bir araştırma konusu haline gelmiştir. Biyouyumlulukları, yüksek ısıl iletkenlikleri, üstün kimyasal kararlılıkları ve çok yönlü yapıları, bu malzemeleri ileri teknoloji uygulamalarında vazgeçilmez kılmaktadır. Hidroksi grupları ile fonksiyonlandırılmış h-BN nanotabakalar (h-BNNS-OH’lar), elektrokimyasal enerji depolama, ilaç taşıma sistemleri ve termal yönetim uygulamalarında ısı yayıcı olarak kullanılma potansiyeli açısından dikkat çekmektedir. Bu çalışmada, h-BN tozunun hidrotermal olarak iyon destekli sıvı faz eksfoliasyonu yöntemiyle birkaç katmanlı h-BNNS-OH’ların sentezi amaçlanmıştır. Eksfoliasyon sürecinde, hacimli h-BN, konsantre sulu KOH ve NaOH çözeltisi varlığında 180 °C’de hidrotermal işleme tabi tutulmuş, ardından elde edilen ürün, sulu dispersiyon formunda h-BNNS-OH elde edilmesi amacıyla sonikasyona maruz bırakılmıştır. Üretilen h-BNNS’lerin karakterizasyonu; Fourier dönüşümlü kızılötesi spektroskopisi (FTIR), Raman spektroskopisi, taramalı elektron mikroskobu (SEM), enerji dağılımlı X-ışını spektroskopisi (EDS), X-ışını kırınımı (XRD) ve geçirimli elektron mikroskobu (TEM) teknikleri kullanılarak gerçekleştirilmiştir. Elde edilen h-BNNS’lerin yüzeylerinin hidroksil grupları ile fonksiyonlandırıldığı belirlenmiştir. Bu çalışma, fazla miktarda alkali metal hidroksit varlığında gerçekleştirilen ardışık hidrotermal işlem ve problu sonikasyonun, yalnızca bir eksfoliasyon çevrimi ile yüksek stabiliteye (9 haftadan daha uzun süre) ve yüksek ürün verimine (%17) sahip sulu h-BNNS-OH dispersiyonlarının elde edilmesi için etkili ve uygulanabilir bir eksfoliasyon yöntemi olduğunu ortaya koymaktadır.

Keywords

hegzagonal bor nitrür, hidroksi fonksiyonlu hegzagonal bor nitrür nanoplakalar, hidroksillenmiş hegzagonal bor nitrür nanoplakalar, sıvı faz eksfoliasyonu, prob sonikasyonu

Supporting Institution

TÜBİTAK

Project Number

TÜBİTAK 223M170

Thanks

This study was supported by The Scientific and Technological Research Council of Türkiye (TUBITAK Grant No: 223M170).

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Details

Primary Language

English

Subjects

Chemical Process Design, Chemical Reaction, Materials Science and Technologies

Journal Section

Research Article

Authors

Gülşah Yaman Uzunoğlu ^*
0000-0002-1589-4735
Türkiye

Early Pub Date

August 15, 2025

Publication Date

August 22, 2025

Submission Date

March 1, 2025

Acceptance Date

April 22, 2025

Published in Issue

Year 2025 Volume: 33 Number: 2

DOI

https://doi.org/10.31796/ogummf.1648475

IZ

https://izlik.org/JA46EL87JF

APA

Yaman Uzunoğlu, G. (2025). EFFICIENT AND FACILE SYNTHESIS OF HYDROXY-FUNCTIONALIZED HEXAGONAL BORON NITRIDE NANOSHEETS BY ION-ASSISTED LIQUID PHASE EXFOLIATION METHOD. Eskişehir Osmangazi Üniversitesi Mühendislik Ve Mimarlık Fakültesi Dergisi, 33(2), 1874-1881. https://doi.org/10.31796/ogummf.1648475

AMA

1.Yaman Uzunoğlu G. EFFICIENT AND FACILE SYNTHESIS OF HYDROXY-FUNCTIONALIZED HEXAGONAL BORON NITRIDE NANOSHEETS BY ION-ASSISTED LIQUID PHASE EXFOLIATION METHOD. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi. 2025;33(2):1874-1881. doi:10.31796/ogummf.1648475

Chicago

Yaman Uzunoğlu, Gülşah. 2025. “EFFICIENT AND FACILE SYNTHESIS OF HYDROXY-FUNCTIONALIZED HEXAGONAL BORON NITRIDE NANOSHEETS BY ION-ASSISTED LIQUID PHASE EXFOLIATION METHOD”. Eskişehir Osmangazi Üniversitesi Mühendislik Ve Mimarlık Fakültesi Dergisi 33 (2): 1874-81. https://doi.org/10.31796/ogummf.1648475.

EndNote

Yaman Uzunoğlu G (August 1, 2025) EFFICIENT AND FACILE SYNTHESIS OF HYDROXY-FUNCTIONALIZED HEXAGONAL BORON NITRIDE NANOSHEETS BY ION-ASSISTED LIQUID PHASE EXFOLIATION METHOD. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi 33 2 1874–1881.

IEEE

[1]G. Yaman Uzunoğlu, “EFFICIENT AND FACILE SYNTHESIS OF HYDROXY-FUNCTIONALIZED HEXAGONAL BORON NITRIDE NANOSHEETS BY ION-ASSISTED LIQUID PHASE EXFOLIATION METHOD”, Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, vol. 33, no. 2, pp. 1874–1881, Aug. 2025, doi: 10.31796/ogummf.1648475.

ISNAD

Yaman Uzunoğlu, Gülşah. “EFFICIENT AND FACILE SYNTHESIS OF HYDROXY-FUNCTIONALIZED HEXAGONAL BORON NITRIDE NANOSHEETS BY ION-ASSISTED LIQUID PHASE EXFOLIATION METHOD”. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi 33/2 (August 1, 2025): 1874-1881. https://doi.org/10.31796/ogummf.1648475.

JAMA

1.Yaman Uzunoğlu G. EFFICIENT AND FACILE SYNTHESIS OF HYDROXY-FUNCTIONALIZED HEXAGONAL BORON NITRIDE NANOSHEETS BY ION-ASSISTED LIQUID PHASE EXFOLIATION METHOD. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi. 2025;33:1874–1881.

MLA

Yaman Uzunoğlu, Gülşah. “EFFICIENT AND FACILE SYNTHESIS OF HYDROXY-FUNCTIONALIZED HEXAGONAL BORON NITRIDE NANOSHEETS BY ION-ASSISTED LIQUID PHASE EXFOLIATION METHOD”. Eskişehir Osmangazi Üniversitesi Mühendislik Ve Mimarlık Fakültesi Dergisi, vol. 33, no. 2, Aug. 2025, pp. 1874-81, doi:10.31796/ogummf.1648475.

Vancouver

1.Gülşah Yaman Uzunoğlu. EFFICIENT AND FACILE SYNTHESIS OF HYDROXY-FUNCTIONALIZED HEXAGONAL BORON NITRIDE NANOSHEETS BY ION-ASSISTED LIQUID PHASE EXFOLIATION METHOD. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi. 2025 Aug. 1;33(2):1874-81. doi:10.31796/ogummf.1648475

Cited By

PEGDA-based nanocomposite gel polymer electrolytes with hydroxylated h-BN nanosheets enabling fast ion transport and high-voltage stability for lithium metal batteries

Ionics

https://doi.org/10.1007/s11581-026-07210-x