Sintesis ZnO-SiO2 serta Aplikasinya pada Degradasi Limbah Organik Fenol dan Fotoreduksi Pb(II) secara Simultan

Dessy Ayu Setyawati; Abdul Haris

doi:10.14710/jksa.18.3.96-100

DOI: https://doi.org/10.14710/jksa.18.3.96-100

Sintesis ZnO-SiO2 serta Aplikasinya pada Degradasi Limbah Organik Fenol dan Fotoreduksi Pb(II) secara Simultan

Dessy Ayu Setyawati, Abdul Haris

Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia

Published: 1 Dec 2015.

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Abstract

Telah berhasil disintesis ZnO-SiO₂ dengan metode sol-gel sebagai fotokatalisis pada degradasi limbah organik fenol dan fotoreduksi kadar Pb(II) secara simultan. Tujuan penelitian ini adalah untuk mensintesis dan mengkarakterisasi fotokatalis ZnO-SiO₂ serta uji aktivitasnya dalam proses degradasi larutan campuran fenol dan reduksi Pb(II). Tahapan penelitian meliputi sintesis ZnO-SiO₂, karakterisasi ZnO-SiO₂ dan uji aktivitas. Hasil karakterisasi ZnO-SiO₂ dengan XRD menunjukkan bahwa ZnO yang digunakan memiliki struktur kristal wurtzite dengan ukuran kristal 25,99 nm sedangkan untuk hasil karakterisasi menggunakan DR UV-Vis menunjukkan bahwa dengan adanya doping SiO₂ telah terjadi penurunan bandgap pada fotokatalis yaitu 2,96 eV sehingga mampu diaplikasikan pada daerah sinar tampak. Semikonduktor ZnO-SiO₂mempunyai aktivitas yang paling baik dengan menggunakan sinar tungsteen selama 9 jam pada degradasi fenol sebesar 83,92 % dan reduksi Pb(II) pada sinar UV-C selama 9 jam sebesar 93,24 %.

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Keywords: Fotokatalis; ZnO-SiO2; Fenol; Pb(II)

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Section: Research Articles

Language : ID

In Vol 18, No 3 (2015): Volume 18 Issue 3 Year 2015

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