Synthesis of TiO2 nanotubes by using combination of sonication and hydrothermal treatment and their photocatalytic activity for hydrogen evolution

Indar Kustiningsih; S Slamet; Widodo Wahyu Purwanto

doi:10.14710/reaktor.15.3.204-211

DOI: https://doi.org/10.14710/reaktor.15.3.204-211

Synthesis of TiO2 nanotubes by using combination of sonication and hydrothermal treatment and their photocatalytic activity for hydrogen evolution

*Indar Kustiningsih - Sultan Ageng Tirtayasa University, Indonesia

S Slamet - Dept of Chemical Engineering, University of Indonesia, Depok, Indonesia, Indonesia

Widodo Wahyu Purwanto - Dept of Chemical Engineering, University of Indonesia, Depok, Indonesia, Indonesia

Received: 4 Nov 2015; Published: 24 Nov 2015.

BibTex Citation Data :

@article{Reaktor9374,
    author = {Indar Kustiningsih and S Slamet and Widodo Purwanto},
    title = {Synthesis of TiO2 nanotubes by using combination of sonication and hydrothermal treatment and their photocatalytic activity for hydrogen evolution},
    journal = {Reaktor},
  volume = {15},
    number = {3},
    year = {2015},
    keywords = {TiO2 nanotubes, sonication, hydrothermal, hydrogen},
    abstract = { Effect of sonication and hydrothermal treatments on the synthesized of Titania nanotubes (TiO 2  NT)has been investigated. Sonication of TiO 2  P25 sol was performed using ultrasonic probe for certain time followed by hydrothermal treatment in a teflon lined stainless steel autoclave. The samples were characterized by means of X-ray powder diffractometer (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), UV-vis diffuse reflectance spectroscopy (UV-vis DRS) and Brunauer-Emmett-Teller (BET).The photocatalytic activity of prepared samples was evaluated with photocatalytic H 2  evolution from aqueous methanol solution. The result showed that TiO 2  NT was formed rapidly along with the duration of sonication treatment but the longer processing time of it would destroy the morphology of TiO 2  NT. The optimal sonication time for the TiO 2  NT formation was 10 min. It was obtained TiO 2  NT with high crystallinity, high surface area and a perfect nanotubes structure.  Hydrogen production by using this sample was about two times higher than TiO 2  P25 nanoparticle.        Keywords  : TiO 2  nanotubes, sonication, hydrothermal, hydrogen        Abstrak        Efek kombinasi proses sonikasi dan hidrotermal pada pembentukan TiO 2   nanotubes  telah dilakukan. TiO 2  P25 disonikasi menggunakan ultrasonik probe dengan waktu tertentu kemudian dilanjutkan dengan proses hidrotermal di autoklaf berbahan teflon dan  stainless steel . Sampel yang diperoleh di karakteriksasi menggunakan  X-ray powder diffractometer  (XRD),  scanning electron microscope  (SEM),  transmission electron microscope  (TEM), UV-vis  diffuse reflectance s  pectroscopy  (UV-vis DRS) and  Brunauer-Emmett-Teller  (BET). Aktifitas fotokatalis dari sampel diuji untuk produksi hidrogen dari larutan metanol. Dari hasil yang diperoleh TiO 2   nanotubes  lebih cepat terbentuk dengan adanya proses sonikasi, akan tetapi semakin lama waktu sonikasi bentuk  nanotubes  yang diperoleh menjadi rusak. Waktu optimal untuk proses sonikasi adalah 10 menit. Pada kondisi ini TiO 2  yang terbentuk memiliki kristalinitas dan luas permukaan tinggi serta bentuk nanotubes yang sempurna. Produksi hidrogen pada kondisi inipun dua kali lebih besar dibandingkan dengan TiO 2  P25 nano partikel.       Kata Kunci : TiO 2   nanotubes , sonikasi, hidrotermal, hidrogen    },
   issn = {2407-5973},   pages = {204--211}  doi = {10.14710/reaktor.15.3.204-211},
    url = {https://ejournal.undip.ac.id/index.php/reaktor/article/view/9374}
}

Citation Format:

Abstract

Effect of sonication and hydrothermal treatments on the synthesized of Titania nanotubes (TiO₂ NT)has been investigated. Sonication of TiO₂ P25 sol was performed using ultrasonic probe for certain time followed by hydrothermal treatment in a teflon lined stainless steel autoclave. The samples were characterized by means of X-ray powder diffractometer (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), UV-vis diffuse reflectance spectroscopy (UV-vis DRS) and Brunauer-Emmett-Teller (BET).The photocatalytic activity of prepared samples was evaluated with photocatalytic H₂ evolution from aqueous methanol solution. The result showed that TiO₂NT was formed rapidly along with the duration of sonication treatment but the longer processing time of it would destroy the morphology of TiO₂ NT. The optimal sonication time for the TiO₂ NT formation was 10 min. It was obtained TiO₂ NT with high crystallinity, high surface area and a perfect nanotubes structure. Hydrogen production by using this sample was about two times higher than TiO₂ P25 nanoparticle.

Keywords : TiO₂ nanotubes, sonication, hydrothermal, hydrogen

Abstrak

Efek kombinasi proses sonikasi dan hidrotermal pada pembentukan TiO₂ nanotubes telah dilakukan. TiO₂ P25 disonikasi menggunakan ultrasonik probe dengan waktu tertentu kemudian dilanjutkan dengan proses hidrotermal di autoklaf berbahan teflon dan stainless steel. Sampel yang diperoleh di karakteriksasi menggunakan X-ray powder diffractometer (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), UV-vis diffuse reflectance spectroscopy (UV-vis DRS) and Brunauer-Emmett-Teller (BET). Aktifitas fotokatalis dari sampel diuji untuk produksi hidrogen dari larutan metanol. Dari hasil yang diperoleh TiO₂ nanotubes lebih cepat terbentuk dengan adanya proses sonikasi, akan tetapi semakin lama waktu sonikasi bentuk nanotubes yang diperoleh menjadi rusak. Waktu optimal untuk proses sonikasi adalah 10 menit. Pada kondisi ini TiO₂ yang terbentuk memiliki kristalinitas dan luas permukaan tinggi serta bentuk nanotubes yang sempurna. Produksi hidrogen pada kondisi inipun dua kali lebih besar dibandingkan dengan TiO₂ P25 nano partikel.

Kata Kunci : TiO₂ nanotubes, sonikasi, hidrotermal, hidrogen

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Keywords: TiO2 nanotubes, sonication, hydrothermal, hydrogen

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Section: Research Article

Language : EN

In Volume 15 No.3 April 2015

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