Sintesis dan Karakterisasi TiO2 Terdoping Nitrogen (N-Doped TiO2) dengan Metode Sol–Gel

Slamet Karim; Pardoyo Pardoyo; Agus Subagio

doi:10.14710/jksa.19.2.63-67

DOI: https://doi.org/10.14710/jksa.19.2.63-67

Sintesis dan Karakterisasi TiO2 Terdoping Nitrogen (N-Doped TiO2) dengan Metode Sol–Gel

Slamet Karim¹, Pardoyo Pardoyo¹

, Agus Subagio²

¹Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia

²Physics Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia

Published: 1 Aug 2016.

BibTex Citation Data :

@article{JKSA18791,
    author = {Slamet Karim and Pardoyo Pardoyo and Agus Subagio},
    title = {Sintesis dan Karakterisasi TiO2 Terdoping Nitrogen (N-Doped TiO2) dengan Metode Sol–Gel},
    journal = {Jurnal Kimia Sains dan Aplikasi},
  volume = {19},
    number = {2},
    year = {2016},
    keywords = {Fotokatalis; N-doped TiO2; Semikonduktor},
    abstract = {Energi celah pita yang lebar dari semikonduktor TiO 2  yang setara dengan cahaya ultraviolet (l<380 nm) membatasi aplikasi fotokatalitik hanya terbatas pada daerah ultraviolet dan tidak pada daerah cahaya tampak (l = 400 nm–700 nm). Pada penelitian ini dilakukan sintesis TiO 2  teremban nitrogen yang dipreparasi melalui metode sol-gel. Prekursor TiCl 4  digunakan sebagai sumber titanium dioksida dan CO(NH 2 ) 2  sebagai sumber nitrogen dan divariasi pada jumlah konsentrasi N dengan variasi 20 g, 30 g, 40 g dan 50 g. Refluks dilakukan pada suhu 100 o C selama 7 jam dilanjutkan dengan pengeringan selama 3 jam pada suhu 100 o C, dan kalsinasi pada suhu 500 o C selama 7 jam . Karakterisasi N- doped  TiO 2  dilakukan menggunakan  X-ray Diffraction  (XRD),  Fourier Transform–Infra Red spectroscopy  (FTIR), dan  UV- Visible diffuse reflectance spectra  (UV-Vis DRS). Berdasarkan data XRD diketahui bahwa kristal N-  doped  TiO 2  berstruktur anatase dengan indeks Miller 101. Spektra FTIR menunjukkan pergeseran serapan vibrasi O-Ti-O pada bilangan gelombang 400-1050 cm -1 , diperkirakan sebagai akibat terbentuknya ikatan N-Ti-O. Spektrum DRS-UV–tampak menunjukkan penurunan energi celah pita dari TiO 2  yakni 3,2 eV. Dapat disimpulkan bahwa penambahan konsentrasi nitrogen mengakibatkan penurunan energi celah pita, pada variasi 20g sebesar 3,12 eV, 30 g sebesar 3,09 eV, 40 g sebesar 3,082 eV, dan 50 g sebesar 3,08 eV.},
   issn = {2597-9914},   pages = {63--67}  doi = {10.14710/jksa.19.2.63-67},
    url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/18791}
}

Citation Format:

Abstract

Energi celah pita yang lebar dari semikonduktor TiO₂yang setara dengan cahaya ultraviolet (l<380 nm) membatasi aplikasi fotokatalitik hanya terbatas pada daerah ultraviolet dan tidak pada daerah cahaya tampak (l = 400 nm–700 nm). Pada penelitian ini dilakukan sintesis TiO₂ teremban nitrogen yang dipreparasi melalui metode sol-gel. Prekursor TiCl₄ digunakan sebagai sumber titanium dioksida dan CO(NH₂)₂ sebagai sumber nitrogen dan divariasi pada jumlah konsentrasi N dengan variasi 20 g, 30 g, 40 g dan 50 g. Refluks dilakukan pada suhu 100^oC selama 7 jam dilanjutkan dengan pengeringan selama 3 jam pada suhu 100^oC, dan kalsinasi pada suhu 500^oC selama 7 jam . Karakterisasi N-doped TiO₂ dilakukan menggunakan X-ray Diffraction (XRD), Fourier Transform–Infra Red spectroscopy (FTIR), dan UV- Visible diffuse reflectance spectra (UV-Vis DRS). Berdasarkan data XRD diketahui bahwa kristal N- doped TiO₂ berstruktur anatase dengan indeks Miller 101. Spektra FTIR menunjukkan pergeseran serapan vibrasi O-Ti-O pada bilangan gelombang 400-1050 cm^-1, diperkirakan sebagai akibat terbentuknya ikatan N-Ti-O. Spektrum DRS-UV–tampak menunjukkan penurunan energi celah pita dari TiO₂ yakni 3,2 eV. Dapat disimpulkan bahwa penambahan konsentrasi nitrogen mengakibatkan penurunan energi celah pita, pada variasi 20g sebesar 3,12 eV, 30 g sebesar 3,09 eV, 40 g sebesar 3,082 eV, dan 50 g sebesar 3,08 eV.

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Keywords: Fotokatalis; N-doped TiO2; Semikonduktor

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Language : ID

In Vol 19, No 2 (2016): Volume 19 Issue 2 Year 2016

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