Decolorization of Methylene Blue Dye Using ZnO/ZSM-5 Photocatalyst Under UV-LED Irradiation

Lely Dwi Astuti (Chemistry Departemeny, Faculty of Sciences, Institut Teknologi Sepuluh Nopember, ITS Campus Sukolilo, Keputih, Sukolilo, East Java, Indonesia, 60111)
Yuly Kusumawati (Chemistry Departemeny, Faculty of Sciences, Institut Teknologi Sepuluh Nopember, ITS Campus Sukolilo, Keputih, Sukolilo, East Java, Indonesia, 60111)
Didik Prasetyoko (Chemistry Departemeny, Faculty of Sciences, Institut Teknologi Sepuluh Nopember, ITS Campus Sukolilo, Keputih, Sukolilo, East Java, Indonesia, 60111)
Wahyu Bambang Widayatno (Research Center for Physics - Indonesian Institute of Sceinces)
Abdul Hamid (Chemistry Departemeny, Faculty of Sciences, Institut Teknologi Sepuluh Nopember, ITS Campus Sukolilo, Keputih, Sukolilo, East Java, Indonesia, 60111)

ALCHEMY Jurnal Penelitian Kimia
Vol 16, No 2 (2020): September

The present research studied about decolorization of methylene blue dye using photocatalyst ZnO/ZSM-5 under UV-LED lamp. ZnO/ZSM-5 was synthesized using the impregnation method by adding two grams ZSM-5 to Zn solution 0.3 M 10 mL. Photocatalyst was characterized using X-ray diffractometer (XRD), Fourier transform infrared (FTIR), field emission scanning electron microscopy-energy dispersive X-Ray (FESEM-EDX), and surface area analyzer (SAA). Analysis using XRD show addition characteristic peaks of ZnO at 2θ 31.60°, 34.21°, 36.08°, 47.35°, 56.50°, 62.73°, 67.83°, that indicates a successful impregnation process. The photocatalysis activity test was done on methylene blue dye 100 mg L-1. ZSM-5 and ZnO activities were tested under UV-LED irradiation and dark conditions. Data showed that percent removal of dye occurred on ZnO/ZSM-5 under 15 minutes irradiation is 78.32%.