Influence of pH on the Sol-Gel Synthesis of TiO2 Nanoparticles: Structural, Morphological, and Surface Properties
Yazarlar (4)
Nazlı Türkten
Prof. Dr. Yunus KARATAŞ Kırşehir Ahi Evran Üniversitesi, Türkiye
Yelda Yalçın Gürkan
Dr. Öğr. Üyesi Şimal Kürümoğlu Kırşehir Ahi Evran Üniversitesi
Makale Türü Açık Erişim Özgün Makale (Ulusal alan endekslerinde (TR Dizin, ULAKBİM) yayınlanan tam makale)
Dergi Adı Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Dergi ISSN 2687-3729
Dergi Tarandığı Indeksler TR DİZİN
Makale Dili Türkçe Basım Tarihi 06-2026
Cilt / Sayı / Sayfa 9 / 3 / – DOI 10.47495/okufbed.1836371
Makale Linki https://doi.org/10.47495/okufbed.1836371
UAK Araştırma Alanları
Fiziksel Kimya
Özet
This study focused on the effects of acidic pH on the precursor solution, impacting the structural, morphological, and surface features of TiO2 nanoparticles. Therefore, TiO2 nanoparticles at three different acidic pH levels (pH=2, pH=4, and pH=6) using a sol-gel process from a titanium (IV) isopropoxide (TIP) precursor were synthesized. The synthesized TiO2 nanoparticles at three different pH levels were systematically characterized by FTIR, Raman spectroscopy, XRD, SEM, XPS, and BET analytical techniques. The obtained TiO2 nanoparticles at pH=2 (TiO2-2) exhibited a multi-phase pattern of dominant anatase and minor rutile, while TiO2 specimens prepared at pH=4 (TiO2-4) and pH=6 (TiO2-6) consisted only of a single anatase phase. The crystallite particle sizes of TiO2 specimens decreased as the pH level increased. The TiO2-4 and TiO2-6 specimens revealed smoother and agglomerated surface morphologies compared to the TiO2-2 specimen. All the isotherm curves were Type IV, and the BET surface areas of TiO2-2, TiO2-4, and TiO2-6 specimens were 50 m2/g, 54 m2/g, and 59 m2/g.
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