PENGARUH DOPING CUO DAN ZAT ADITIF MONOETHANOLAMINE (MEA) PADA SINTESIS TIO2 MENGGUNAKAN METODE SOL-GEL TERHADAP BAND GAP ENERGY
DOI:
https://doi.org/10.36526/jc.v8i1.7415Keywords:
Semikonduktor TiO₂, doping CuO, monoethanolamine (MEA), metode sol-gel, band gap, sifat optikAbstract
Titanium dioxide (TiO₂) is a semiconductor material that is widely used for photocatalytic applications, but it has a relatively large band gap value so that its activity in the visible light region is limited. This study aims to analyze the effect of CuO doping and the addition of monoethanolamine (MEA) additives on the band gap value of TiO₂ synthesized by the sol-gel method. CuO doping was carried out using CuCl₂·2H₂O precursor with concentration variations of 5%, 10%, 15%, 20%, and 25%. The optimum concentration was then combined with variations in MEA volume of 1 mL, 2 mL, and 3 mL. The synthesized material was characterized using UV-DRS and the band gap value was calculated using the Kubelka-Munk approach. The results of the study showed that the addition of CuO doping caused a decrease in the band gap value of TiO₂ from 3.33 eV to 3.29 eV at an optimum concentration of 15%. The addition of MEA further reduced the band gap, with the lowest value being 3.27 eV at 3 mL MEA volume. This decrease indicates that CuO doping and MEA additives play a role in modifying the electronic structure of TiO₂, thereby narrowing the energy band gap. Thus, the combination of CuO and MEA doping has the potential to enhance the optical response of TiO₂ in the visible light region, namely the range 400 – 800 nm
References
Ahmadiasl, R., Moussavi, G., Shekoohiyan, S., & Razavian, F. (2022). Synthesis of Cu-Doped TiO2 Nanocatalyst for the Enhanced Photocatalytic Degradation and Mineralization of Gabapentin under UVA/LED Irradiation: Characterization and Photocatalytic Activity. Catalysts, 12(11). https://doi.org/10.3390/catal12111310
Alsheheri, S. Z. (2021). Nanocomposites containing titanium dioxide for environmental remediation. Designed Monomers and Polymers, 24(1), 22–45. https://doi.org/10.1080/15685551.2021.1876322
Aristanti, Y., Minandar, N., & Soepriyanto, S. (2019). Analisis Laju Degradasi Rhodamine B (RhB) pada Proses Fotokatalisis TiO2. Ensains, 2(3), 188–194.
Astuti, K. Y. (2018). Pembentukan Nanopartikel TiO2 dengan Metode Bervariasi. Jurnal of Industrial Engineering and Operation Management (JIEOM), 1(1), 27–31.
Bokov, D., Jalil, A. T., Chupradit, S., Suksatan, W., Ansari, M. J., Shewael, I. H., Valiev, G. H., & Kianfar, E. (2021). Nanomaterial by Sol-Gel Method : Synthesis and Application. 2021. https://doi.org/10.1155/2021/5102014
Dwiputri, Y. (2025). PENGARUH PENAMBAHAN DOPING CERIUM TERHADAP NILAI BANDGAP CUO DENGAN METODE SOL-GEL. M A S A L I Q Jurnal Pendidikan dan Sains, 5, 523–530.
Faizah, S. H., Sanjaya, H., Budiman, S., & Padang, U. N. (2023). PENGARUH PENAMBAHAN MONOETANOLAMIN (MEA) PADA SIFAT LISTRIK DARI MATERIAL COPPER TIN OXIDE. 4(Ii), 308–313.
Irsyad, A., & Sanjaya, H. (2025). PENGARUH VARIASI KONSENTRASI DOPPING CuO DAN ADITIF MONOETHANOLAMINE ( MEA ) PADA SINTESIS NANOPARTIKEL ZnO. ournal of Research and Education Chemistry (JREC), 7(1), 66–74.
Kusuma, D. S., Soegijono, B., Sarwono, R., Puspiptek, K., Salemba, J., & No, R. (2010). PENGARUH pH PADA SINTESIS KATALIS Cu-ZnO DENGAN PROSES SOL GEL UNTUK HIDROGENOLISIS GLISEROL. 209–214.
Liza, Y. M., Yasin, R. C., Maidani, S. S., & Zainul, R. (2018). Gelation Sol- Gel Proces s Densification Ageing Drying. Pendidikan FMIPA Universitas Negeri Padang.
Ningsih, S. K. W. (2016). Sintesis Anorganik. Padang: UNP Press.
Ningsih, S. K. W., Sanjaya, H., Bahrizal, Nasra, E., & Yurnas, S. (2021). Synthesis of cu2+ doped zno by the combination of sol-gel-sonochemical methods with duck egg albumen as additive for photocatalytic degradation of methyl orange. Indonesian Journal of Chemistry, 21(3), 564–574. https://doi.org/10.22146/ijc.57077
Priatmoko, S., & Wahyuni, S. (2021). Fotokatalis Ni-N-TiO 2 untuk Degradasi Metilen Biru. Inovasi Sains dan Kesehatan, 5, 120–165.
Rahayu, R., Manurung, P., & Yulianti, Y. (2019). Pengaruh Ethanolamina ( MEA ) dalam Pembentukan TIO 2 dari Bahan Awal Ti Butoksida. 07(02), 153–160.
Sanjaya, H. (2018). DEGRADASI METIL VIOLET MENGGUNAKAN KATALIS ZnO-TiO2 SECARA FOTOSONOLISIS. EKSAKTA: Berkala Ilmiah Bidang MIPA, 19(1), 91–99. https://doi.org/10.24036/eksakta/vol19-iss1/131
Sanjaya, H. (2024). Pengaruh Penambahan Monoethanolamine (MEA) Sebagai Aditif Dalam Sintesis dan Karakterisasi Lapisan Tipis Tembaga (II) Oksida (CuO). Jurnal Pendidikan Tambusai, 8, 9233–9238.
Yohan, Y., Astuti, F., & Wicaksana, A. (2018). Pembuatan Spektrofotometer Edukasi Untuk Analisis Senyawa Pewarna Makanan. Chimica et Natura Acta, 6(3), 111. https://doi.org/10.24198/cna.v6.n3.19099
Zhao, B., Li, Y., Wang, R., Engineering, C., & Engineering, M. (2020). Solar PV Powered Heating and Cooling. 收入 Comprehensive Renewable Energy, 2nd edition (2 本). Elsevier Inc. https://doi.org/10.1016/B978-0-12-819727-1.00020-0
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