CD Skripsi

Penggunaan Ekstrak Daun Matoa Dalam Biosintesis Zno Doping Sulfur Untuk Meningkatkan Kinerja Fotokatalis

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ABSTRACT
The rapidly expanding Indonesian industrial sector frequently generates hazardous waste, such as pollutants that are harmful to the environment. Semiconductor materials are employed in the photodegradation process, which uses ultra violet light to degrade hazardous contaminants. In this study, a biosynthetic ZnO semiconductor material is created by applying S doping to be used in photocatalyst applications to decompose 4-nitropenol (4-NP) pollutant. ZnO is synthesized by reacting Zinc Nitrate Hexahydrate with Matoa leaf extract (Pometia pinnata) with varied amounts of sulfur doping, namely 1%, 2%, and 3%. UV-Vis spectroscopy, XRD (X-Ray Diffraction), FESEM (Field Scanning Electron Microscopy), and EDX are used to analyze the optical characteristics, crystal structure, morphology, and elemental content of the samples (Energy Dispersive X-Ray). UV-Vis absorbance of ZnO:S sample has a highest peak value in the region of 364-375 nm and a bandgap energy of 2.92-3.08 eV. The ZnO:S sample possesses a hexagonal wurtzite crystal structure with a crystal size of 37.54 nm. The addition of the percentage of doping has no effect on the size of the crystals. FESEM morphology yields the shape of flakes with sizes ranging from 94.96 to 132.31 nm. The ability of ZnO:S samples to degrade 4-NP under UV-C light is investigated according to 4-NP absorbance peak at the wavelength of 400 nm. The ZnO:S 2% sample degraded 4-NP pollutant for 2 hours with a highest degradation efficiency of 96.90%. As a result, ZnO biosynthesis employing matoa leaf extract with S doping has the potential to develop and implement in future to overcome the pollutants from industry disposal, particularly pollutant 4-nitropenol.
Keywords : Doped, matoa leaf, nitrophenol, sulphur, ZnO

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1903112165

Penerbit

Pekanbaru : Universitas Riau - FMIPA - Fisika., 2023

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1903112165

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

FISIKA

Info Detail Spesifik

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Pernyataan Tanggungjawab

tethi

Versi lain/terkait

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