Titanium dioxide nanorods were prepared by hydrothermal method using titanium tetrachloride TiCl4 as a precursor solution and an expanded gate field effect transistor's (EGFET) sensing membrane has been used for pH sensing applications. The TiO2 nanorods were grown onto fluorine-doped tin oxide FTO coated glass substrates at a hydrothermal reaction temperature of 170 degrees C for 6 h. The effect of precursor solution TiCl4 and hydrochloric acid HCl concentrations on the crystal form of TiO2 nanorods was analyzed. The morphology, crystal structures, chemical composition, and the size distribution of the TiO2 nanorods were characterized by X-ray diffraction (XRD), external field scanning electron microscopy (FESEM) with energy dispersive spectroscopy (EDS), and transmission electron microscopy (TEM) images. Under strongly acidic conditions, the structural and morphological studies showed that the rutile TiO2 nanorods shape is the predominant phase. The TiO2 nanorods sensor exhibited high sensitivity of 78.25 mV/pH and large linearity of 99.27% with good repeatability of 0.23% in a wide sensing range of pH 2-12 with good stability, reliability and showed lower hysteresis value of 9.1 mV. The TiO2 nanorod pH sensor's high measured sensitivity makes it a feasible contender for a wide range of applications, including pH sensors and biosensors. (C) 2021 Elsevier B.V. All rights reserved.
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[Anonymous], 2014, MATER RES STAND, DOI DOI 10.1557/OPL.2014.831
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Chonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South KoreaChonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
Burungale, V. V.
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Bae, Hyojung
Kamble, A. S.
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Chonnam Natl Univ, Dept Mat Sci & Engn, Gwangju 500757, South KoreaChonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
Kamble, A. S.
Kim, J-H
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Chonnam Natl Univ, Dept Mat Sci & Engn, Gwangju 500757, South KoreaChonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
Kim, J-H
Patil, P. S.
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Shivaji Univ, Dept Phys, Thin Film Mat Lab, Kolhapur 416004, Maharashtra, IndiaChonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
Patil, P. S.
Ha, J-S
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Chonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
Chonnam Natl Univ, Sch Chem Engn, Gwangju 61186, South KoreaChonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
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Univ Sao Paulo, Dept Fis, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Sao Paulo, BrazilUniv Sao Paulo, Dept Fis, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Sao Paulo, Brazil
Guidelli, Eder Jose
Guerra, Elidia Maria
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Univ Fed Sao Paulo, Dept Quim Biotecnol & Engn Bioproc, BR-36420000 Ouro Branco, MG, BrazilUniv Sao Paulo, Dept Fis, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Sao Paulo, Brazil
Guerra, Elidia Maria
Mulato, Marcelo
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Univ Sao Paulo, Dept Fis, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Sao Paulo, BrazilUniv Sao Paulo, Dept Fis, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Sao Paulo, Brazil
机构:
Chonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South KoreaChonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
Burungale, V. V.
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Bae, Hyojung
Kamble, A. S.
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Chonnam Natl Univ, Dept Mat Sci & Engn, Gwangju 500757, South KoreaChonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
Kamble, A. S.
Kim, J-H
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Chonnam Natl Univ, Dept Mat Sci & Engn, Gwangju 500757, South KoreaChonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
Kim, J-H
Patil, P. S.
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Shivaji Univ, Dept Phys, Thin Film Mat Lab, Kolhapur 416004, Maharashtra, IndiaChonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
Patil, P. S.
Ha, J-S
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h-index: 0
机构:
Chonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
Chonnam Natl Univ, Sch Chem Engn, Gwangju 61186, South KoreaChonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea
机构:
Univ Sao Paulo, Dept Fis, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Sao Paulo, BrazilUniv Sao Paulo, Dept Fis, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Sao Paulo, Brazil
Guidelli, Eder Jose
Guerra, Elidia Maria
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Univ Fed Sao Paulo, Dept Quim Biotecnol & Engn Bioproc, BR-36420000 Ouro Branco, MG, BrazilUniv Sao Paulo, Dept Fis, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Sao Paulo, Brazil
Guerra, Elidia Maria
Mulato, Marcelo
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Univ Sao Paulo, Dept Fis, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Sao Paulo, BrazilUniv Sao Paulo, Dept Fis, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Sao Paulo, Brazil