Sintesis Nanopartikel Zno/Al2(So4)3 Dengan Metode Mechanical Alloying Sebagai Katalis Limbah Cair Untuk Meningkatkan Ketersediaan Air

Vika Sri Anti; Heryanto Heryanto; Dahlang Tahir

doi:10.20527/flux.v19i1.11825

Sintesis Nanopartikel Zno/Al2(So4)3 Dengan Metode Mechanical Alloying Sebagai Katalis Limbah Cair Untuk Meningkatkan Ketersediaan Air

Vika Sri Anti, Heryanto Heryanto, Dahlang Tahir

Abstract

ZnO/Al₂(SO₄)₃ synthesized by mechanical alloying method (1, 10, and 15 hours) was applied as methylene blue (MB) photodegradation. Fourier transform infrared (FTIR), X-Ray Diffraction (XRD), and Uv-Visible (Uv-Vis) were used to characterize the Physico-chemical properties of the composites. The results of XRD and FTIR characterization showed an average crystal size of 50.02 nm and the lowest transmittance value (%) at 10 hours milling, the degradation efficiency was much influenced by crystallinity speed, functional groups, and milling time. In this study, the optimal degradation based on the results of the Uv-Vis was shown by the sample ZnO/Al₂(SO₄)₃ for 10 hours milling with a degradation percentage of 84.87%. Furthermore, it was found a ZnO/Al₂(SO₄)₃ composite with a very short degradation time of 20 minutes. In order to reduce water pollution in environments, composite based on natural material is a promising solution due to their ability to break up pollutant radical compounds bonding.

Keywords

Fotokatalis; Mechanical alloying; ZnO/Al2(SO4)3; Metilen biru.

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DOI: http://dx.doi.org/10.20527/flux.v19i1.11825