Research Article
Preparation Of ZnO/SiO2 Composite From Battery Waste And Rice Husk Ash For Decolorization Of Methylene Blue
@INPROCEEDINGS{10.4108/eai.11-7-2019.2297521, author={Eko Prabowo Hadisantoso and Popy Listiani and Soni Setiadji}, title={Preparation Of ZnO/SiO2 Composite From Battery Waste And Rice Husk Ash For Decolorization Of Methylene Blue}, proceedings={Proceedings of the 1st International Conference on Islam, Science and Technology, ICONISTECH 2019, 11-12 July 2019, Bandung, Indonesia.}, publisher={EAI}, proceedings_a={ICONISTECH}, year={2021}, month={1}, keywords={zno/sio2 composites methylene blue photocatalysts battery waste rice husk ash}, doi={10.4108/eai.11-7-2019.2297521} }- Eko Prabowo Hadisantoso
Popy Listiani
Soni Setiadji
Year: 2021
Preparation Of ZnO/SiO2 Composite From Battery Waste And Rice Husk Ash For Decolorization Of Methylene Blue
ICONISTECH
EAI
DOI: 10.4108/eai.11-7-2019.2297521
Abstract
The composite of ZnO/SiO2 has been synthesized from battery waste as a source of ZnO and rice husk ash as a source of SiO2. The composite was used to decolorize of methylene blue by the photocatalytic method under visible light. The ZnO/SiO2 composites were synthesized by the sol-gel method. The Zinc metal from the waste battery is separated, cleaned, and reacted with acid which then produces a solution of Zn2+. While rice husk ash was reacted with a strong base to produce Na2SiO3 solution. Then the two solutions are mixed with the mole ratios of ZnO:SiO2 are 1:4, 1:1, 4:1, 8:1 and 16:1. Composite characterization was carried out using XRD for all composites and SEM for composites with the best photocatalytic performance. The photocatalytic performance of composites was tested against methylene blue solution. The best performance of composites can decolorize methylene blue as much as 96.91% by using composite 4:1 as much as 150 mg with the exposure time of visible light for 180 minutes and using methylene blue 20 ppm as much as 25 mL.
