1Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia
2Physics Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia
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@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} }
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