CD Skripsi

Sintesis Cryptomelane Dari Kmno4 Dan Glukosamenggunakan Metode Pengendapan : Pengaruhsuhu Kalsinasi Dan Aktivitas Katalitik Untuk Mendegradasi Metilen Biru

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Manganese oxide is an effective strong oxidizer because it has oxygen that is easily released. Manganese oxides have hollow and layered structures such as MnO2, Mn3O4, Mn2O3, MnO. Manganese oxide synthesis can be done by sol-gel, reflux, hydrothermal, ceramic, and precipitation methods. Manganese oxide can be used as a catalyst to degrade waste organic compounds such as methylene blue dye. Cryptomelane catalyst (MnO2) was synthesized using KMnO4 and glucose using precipitation method with calcination temperature variation. This study aims to examine the catalytic activity test of the synthesized catalyst in degrading methylene blue. Characterization of the synthesized catalyst was carried out by X-Ray Diffraction (XRD), Fourier Transform Infrared (FTIR), Raman spectroscopy, and determination of the average oxidation level of Mn. Catalytic activity tests were optimized on C-500 ℃ and C-700 ℃ catalysts with variations in pH, 30% H2O2 volume, catalyst mass, and initial methylene blue concentration. Characterization results using XRD show that calcination temperature can affect the average particle size and crystallinity level. C-500℃, C-600℃, C-700℃, and C-800℃ catalysts produce average crystal sizes of 73.34 nm; 30.21 nm;
22.89 nm; and 60.76 nm, respectively. FTIR and Raman characterization showed the presence of O-Mn lattice vibrations. The average oxidation level of Mn is 3.78-3.84. Based on the results, catalyst C-700℃ at pH = 11, 30% H2O2 = 15 mL, catalyst mass = 50 mg, and initial concentration of MB = 30 ppm, was able to degrade methylene blue by 97.01%. Catalyst C-500℃ at pH = 11, H2O2 30% = 25 mL, catalyst mass = 75 mg, and initial concentration of MB = 30 ppm, was able to degrade methylene blue by 93.20% after 120 minutes of contact time.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1903110814

Penerbit

Pekanbaru : Universitas Riau FMIPA Kimia., 2024

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1903110814

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

mardiah

Versi lain/terkait

Lampiran Berkas

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