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All Journal Walisongo Journal of Chemistry
Wulandari, Oktavia Rahmi
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Chemistry

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Rice Husk Ash: A Promising Heavy Metal Adsorbent For Wastewater Treatment Kumalasari, Meiyanti Ratna; Beladona, Siti Unvaresi Misonia; Gracia, Amanda Natania; Sugiyani, Tina; Wulandari, Oktavia Rahmi; Imelya, Marsya; Syaima, Husna; Hanif, Qonita Awliya
Walisongo Journal of Chemistry Vol 7, No 1 (2024): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v7i1.18852

Abstract

The primary polluter of the environment is liquid waste. Silica is one substance that can be utilized to minimize water pollution. Silica can be produced from agricultural biomass waste, such as rice husk ash. This study investigated the preparation of rice husk ash and the optimal synthesis method for producing bio-silica. A literature review of studies on rice husk ash, heavy metals, and adsorbents was conducted. The findings indicated that boiling rice husk at 800°C and washing with HCl produced high-purity silica. XRD (X-ray diffraction), FT-IR (Fourier transform infrared) spectrophotometers, and ED-XRF (Energy Dispersive X-ray fluorescence) were employed to characterize the rice husk ash. The precipitation, sol-gel, acidification, and hydrothermal methods were compared for bio-silica synthesis. The synthesized bio-silica can be used as a heavy metal absorbent for various metal ions, including Pb2+, Zn2+, Mn2+, Cu2+, As3+, As5+, and Cd2+.
Co-Authors Beladona, Siti Unvaresi Misonia Gracia, Amanda Natania Imelya, Marsya Kumalasari, Meiyanti Ratna Qonita Awliya Hanif Sugiyani, Tina Syaima, Husna