IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)
Vol 5, No 1 (2020): February 2020

Application of Nanosilica from Rice Husk Ash as Iron Metal (Fe) Adsorbent in Textile Wastewater

Rusdianasari Rusdianasari (Politeknik Negeri Sriwijaya)
Muhammad Taufik (Politeknik Negeri Sriwijaya)
Yohandri Bow (Politeknik Negeri Sriwijaya)
Maryam Seyaski Fitria (Politeknik Negeri Sriwijaya)



Article Info

Publish Date
17 Feb 2020

Abstract

Heavy metals are considered hazardous to health if they accumulate excessively in the body. One way to remove iron metal ions by adsorption process uses adsorbents. In this study, removal of heavy metals such as ferrous metal (Fe) was adsorbed using an adsorbent in the form of nanosilica. Nanosilica is made from rice husk ash where rice husk ash contains 80-90% silica so that it can be utilized as a raw material in nanosilica synthesis. Synthesis of nanosilica was carried out using a solvent in the form of KOH with a variation of 1.5M concentration; 2.5M; 3.0M; 3.5M and 4.5M. The five types of nanosilica were applied to textile waste containing ferrous metal (Fe) with variations in a contact time of 5, 10, 15, 20, and 25 minutes. Waste containing iron metal that has been adsorbed was analyzed by atomic absorption spectrophotometry (AAS) to see the remaining iron content. From the analysis of AAS produced the smallest iron concentration of 0.186 ppm in nanosilica with 1.5 M KOH solvent. Nanosilica with 1.5M KOH solvent was characterized using a Scanning electron microscopy (SEM) -Energy Dispersive X-ray (EDX) tool to obtain a surface morphological size of 0.44 µm with 28.95% SiO2 content. 

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Journal Info

Abbrev

IJFAC

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Chemistry Environmental Science

Description

Indonesian Journal of Fundamental and Applied Chemistry (IJFAC) is an international research journal and invites contributions of original research articles as well as review articles in several areas of chemistry. The journal aims to publish refereed, high-quality research papers with significant ...