Peningkatan Aktivitas Fotokatalis Nanopartikel Seng Oksida Didoping Aluminium Untuk Mereduksi Merkuri

Authors

  • Andini Ramadhani Departemen Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas
  • Mulda Muldarisnur Departemen Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.13.2.197-203.2024

Keywords:

Doping, Fotokatalis, Merkuri, Nanopartikel, Reduksi

Abstract

Merkuri (Hg) merupakan salah satu limbah logam berat yang banyak ditemukan di lingkungan perairan. Upaya penanganan diperlukan untuk menurunkan kadar pencemaran merkuri ini. Pada penelitian ini digunakan fotokatalis nanopartikel ZnO didoping Al untuk mereduksi merkuri. Nanopartikel ZnO didoping dengan variasi % mol Al 0%, 3%, 5% dan 7% menggunakan metode sol-gel. Nanopartikel ZnO/Al dikarakterisasi menggunakan X-Ray Diffraction (XRD), Particle Size Analyzer (PSA), dan spektrofotometer UV-Vis. Berdasarkan hasil karakterisasi menggunakan XRD dan PSA, diperoleh ukuran kristal ZnO doping Al 0%, 3%, 5%, dan 7% berturut-turut sebesar 25,15 nm, 36,28 nm, 36,29 nm, 40,85 nm, dengan ukuran partikel 27,6 nm, 36,9 nm, 42,8 nm, 67,5 nm. Hasil uji spektrofotometer UV-Vis didapatkan band gap energy masing-masing sampel sebesar 3,22 eV, 3,13 eV, 3,1 eV, dan 3,02 eV. Aktivitas fotokatalisis nanopartikel diuji untuk mereduksi logam merkuri dengan variasi konsentrasi merkuri 0,5 mg/L, 1 mg/L, 1,5 mg/L dan 2 mg/L. Persen reduksi paling besar untuk setiap variasi larutan merkuri ditunjukkan oleh fotokatalis ZnO/Al 7%, dimana mampu mereduksi merkuri 0,5 mg/L, 1 mg/L, 1,5 mg/L dan 2 mg/L sebesar 94,12%, 93,68%, 93,18%, 92,76%.

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Published

2024-03-05

How to Cite

Ramadhani, A., & Muldarisnur, M. (2024). Peningkatan Aktivitas Fotokatalis Nanopartikel Seng Oksida Didoping Aluminium Untuk Mereduksi Merkuri. Jurnal Fisika Unand, 13(2), 197–203. https://doi.org/10.25077/jfu.13.2.197-203.2024

Issue

Vol. 13 No. 2 (2024)

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