CD Tesis

Kinerja Komposit Mnox/Bentonit Untuk Degradasi Metilen Biru

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The use of methylene blue dye has a negative impact on the environment,
ecosystems and human health. One of the methods used to degrade methylene
blue dye is the AOP method with manganese oxide/bentonite composite
heterogeneous catalysts. This study aims to synthesize cryptomelane, manganosite
and birnessite manganese oxide/bentonite composites using the one-step sol gel
method by reacting KMnO4 and glucose and adding bentonite as support. The
results of the synthesis were characterized using X-Ray Diffraction (XRD), Gas
Sorption Analyzer (GSA) and Frourier Transform Infra Red (FTIR). The catalytic
activity test of the composites was carried out on the degradation of methylene
blue. Variations in the concentration of methylene blue, volume of H2O2 and
amount of catalyst are used in the degradation of methylene blue.
The results of the XRD analysis of the three MnOX/bentonite composites
showed that the MnOX diffractogram had changed and several new peaks
appeared due to the addition of bentonite. The peaks produced are more bentonite
phases. The crystal size of the MnOX composite increased compared to single
MnOX. The birnessite/bentonite composite has a larger crystal size than the
cryptomelane/bentonite and manganosite/bentonite. The results of the GSA
analysis showed that the cryptomelane/bentonite composite had a larger surface
area and smaller pore diameter than the other composites. The results of the FTIR
analysis characterization showed that there were spectra which were absorption
peaks of Mn-O, Si-O-Si and O-H. The cryptomelane/bentonite composite had
better catalytic performance compared to the manganosite/bentonite and
birnessite/bentonite composites. The cryptomelane/bentonite composite was able
to degrade methylene blue up to 98.82% under various conditions of 75 ppm MB
solution, 5 ml H2O2 and 25 mg of the composite. Bentonite as a support for
manganese oxide is able to increase the surface area of the composite so that the
activity performance of the composite also increases.
Key Words : Manganese Oxide, Bentonite, Synthesis, Composite, Degradation

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1810246278

Penerbit

Pekanbaru : Universitas Riau – Pascasarjana – Tesis Kimia., 2022

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1810246278

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

FATAH

Versi lain/terkait

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