Sintesis Nanopartikel Seng Oksida Dengan Metode Poliol Dan Aplikasinya Untuk Penghilangan Larutan Metilen Biru

Novelia, Angela (2021) Sintesis Nanopartikel Seng Oksida Dengan Metode Poliol Dan Aplikasinya Untuk Penghilangan Larutan Metilen Biru. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Nanopartikel seng oksida (ZnO-P) disintesis melalui metode poliol sebagai bahan fotokatalisis untuk menghilangkan larutan metilen biru. Metode poliol dilakukan dengan menggunakan pelarut dietilen glikol (DEG). Sintesis dilakukan dengan rasio h = 5, rasio b = 1, dan rasio z = 0,5 mol/L. Nanopartikel seng oksida (ZnO-P) dikarakterisasi dengan Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), dan UV-Diffuse Reflectance (UV-DRS). Hasil karakterisasi menunjukkan bahwa nanopartikel ZnO-P berhasil disintesis dengan struktur kristal heksagonal, bentuk partikel bulat, ukuran partikel sekitar 40-100 nm, terbentuk agregasi partikel dan energi celah pita (Eg) sebesar 3,2 eV. Nanopartikel seng oksida diuji aktivitas fotokatalisisnya untuk menghilangkan metilen biru pada konsentrasi larutan sebesar 20 mg/L dibawah penyinaran UV-LED. Penghilangan konsentrasi metilen biru terbesar oleh nanopartikel seng oksida (ZnO-P) sebesar 98,0% dengan waktu 50 menit dibawah penyinaran UV-LED. Uji efisiensi penghilangan metilen biru dari dua metode sintesis ZnO yang berbeda juga disajikan dalam penelitian ini. ===================================================================================================== Zinc oxide nanoparticles (ZnO-P) were synthesized via the polyol method as a photocatalytic material for the removal of the methylene blue solutions. The polyol method was carried out using diethylene glycol (DEG) as a solvent. Synthesis was carried out with h ratio = 5, b ratio = 1, and z ratio = 0,5 mol/L. Zinc oxide nanoparticles (ZnO-P) were characterized by Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), and UV-Diffuse Reflectance (UV-DRS). The characterization results showed that ZnO-P nanoparticles were successfully synthesized with hexagonal crystal structure, spherical particles shape, particle size around 40-100 nm, particle aggregation formed, and the band gap energy (Eg) is 3.2 eV. Zinc oxide nanoparticles were tested for their photocatalytic activity for the removal of methylene blue at solution concentration of 20 mg/L under UV-LED irradiation. The biggest methylene blue concentration removal by zinc oxide nanoparticles (ZnO-P) was 98,00% with a time of 50 minutes under UV-LED irradiation. The removal of methylene blue efficiency test of two different zinc oxide synthesis methods is also presented in this research.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Zinc oxide nanoparticles, polyol, photocatalysis, methylene blue, Nanopartikel seng oksida, poliol, fotokatalisis, metilen biru
Subjects: Q Science > QD Chemistry
Q Science > QD Chemistry > QD716 Photocatalysis.
Divisions: Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User: Angela Novelia
Date Deposited: 05 Aug 2021 02:03
Last Modified: 05 Aug 2021 02:03
URI: https://repository.its.ac.id/id/eprint/84872

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