STUDI PEMBUATAN NANOKATALIS γ-ALUMINA DENGAN METODE SOL-GEL

RIYADI, ADISTINARDA CHYNTIA NURUL and MUSTIKASARI, IKA YUNIARSIH (2017) STUDI PEMBUATAN NANOKATALIS γ-ALUMINA DENGAN METODE SOL-GEL. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perkembangan industri di Indonesia berlangsung sangat pesat seiring kemajuan ilmu pengetahuan dan teknologi. Salah satunya adalah dalam pengembangan katalis. Untuk memaksimalkan efektifitas katalis berbagai teknologi telah dilakukan dalam rekayasa katalis, salah satunya adalah pembuatan nanokatalis. Alumina terutama γ-Alumina banyak digunakan sebagai katalis dan support katalis karena memiliki luas permukaan yang besar. Penelitian ini bertujuan untuk mempelajari pembuatan nanokatalis γ-Al2O3 dengan metode sol-gel, mempelajari pengaruh suhu pemanasan dan waktu pengadukan terhadap ukuran produk nanokatalis γ-Al2O3, serta mengetahui daya adsorpsi nanokatalis γ-Al2O3 pada larutan metilen biru. Nanokatalis γ-Al2O3 yang dihasilkan kemudian dilakukan karakterisasi XRD untuk mengetahui kristalinitas dan ukuran kristal, karakterisasi BET untuk mengetahui luas permukaan, analisa PSA untuk mengetahui ukuran partikel serta analisa spektrofotometer untuk daya serap pada larutan metilen biru. Dari penelitian ini dapat diambil kesimpulan yaitu dengan menggunakan metode sol-gel berhasil didapatkan ukuran nanokatalis γ-Al2O3. Ukuran nanokatalis terkecil dihasilkan pada suhu operasi 1000C dengan waktu pengadukan selama 4 jam dengan diameter kristal sebesar 16,674 nm dimana ukuran partikelnya 58,77 nm dan luas permukaannya sebesar 182,010 m2/g. Produk nanokatalis γ-Al2O3 memiliki daya serap yang diuji dengan analisa spektrofotometri terhadap larutan metilen biru dengan waktu adsorpsi selama 30 menit didapatkan daya serap tertinggi yakni 39,659% pada variabel 700C 5 jam. Hasil nanokatalis γ-Al2O3 tertinggi pada saat 70⁰C 4 jam sebesar 1,337 gr (18,713%). Sedangkan hasil produk nanokatalis γ-Al2O3 terendah pada saat 80⁰C 4 jam sebesar 0,506 gr (7,088%). ====================================================================================== Industrial development in Indonesia took place very rapidly as advances in science and technology. One of this impact is the development of catalysts. To maximize the effectiveness of the catalyst, there are many variety of engineering technology catalyst had been done, one of them is syntesis of nanocatalyst γ-Al2O3 is widely used as catalysts and catalyst supports, in addition to having a large surface area. This research aims to study the manufacture nanocatalyst γ-Al2O3 by sol-gel method, studied the effect of heating temperature and stirring time to measure nanocatalyst γ-Al2O3 products, as well as knowing the adsorption capacity of nanocatalyst γ-Al2O3 the methylene blue solution. The resulting of γ -Alumina was analyzed characterized by XRD to determine the crystallinity, characterized by BET to determine surface area, analyzed by a PSA to determine crystal size and analyzed by a spectrophotometer for methylene blue adsorption capacity. From this research it can be concluded that by using sol-gel method was successfully obtained the size nanocatalyst γ-Al2O3. The size of the nanocatalyst produced at operating temperature 1000C with a stirring for 4 hours, resulting in the smallest crystal size which 16.674 nm with 58.77 nm particle size and surface area of 182.010 m2/g. Nanocatalyst γ-Al2O3 product has been tested by absorption spectrophotometry analysis of the methylene blue solution with adsorption time for 30 minutes earned the highest absorption capacity which is 39.659% on variable 700C 5 hours. The results of product nanocatalyst γ-Al2O3 is the highest when 70⁰C 4 hours at about 1,337 grams (18.713%). Whereas, the product of nanocatalyst γ-Al2O3 lowest at 4 hours 800C of 0.506 g (7.088%).

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Sol-Gel,nano-catalyst, γ -Alumina
Subjects: Q Science
Q Science > QD Chemistry
Q Science > QD Chemistry > QD502 Chemical kinetics
Divisions: Faculty of Industrial Technology > Chemical Engineering > (S1) Undergraduate Theses
Depositing User: IKA YUNIARSIH MUSTIKASARI
Date Deposited: 26 Jan 2017 06:43
Last Modified: 08 Mar 2019 06:16
URI: http://repository.its.ac.id/id/eprint/3597

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