The Synthesis Of Silica Nanoparticles From Sodium Silicate Waste As Adsorbents

Sodium silicate is a compound consisting of sodium (Na), silicon (Si), and oxygen (O), which is often used in industry as an adhesive, concrete hardener, or as an additional ingredient in detergents. Silica nanoparticles are particles that have very small sizes, often in the nanometer range, which gives them a very large surface area compared to their volume, this characteristic makes them very efficient at capturing and binding molecules or ions from the surrounding environment. One of the main reasons why sodium silicate is used in the synthesis of silica nanoparticles is its relatively cheap and easily accessible availability, this makes it an attractive option in the mass production of silica nanoparticles for large-scale applications. The main problem that needs to be identified in this research is how variations in acid concentration in the synthesis process affect the ability of silica nanoparticles as an adsorbent and how to optimize the ability of silica nanoparticles to capture pollutants from the environment by considering various synthesis parameters, such as reaction temperature and reaction time. The aim of this research is to determine the effect of acid concentration on the efficiency of silica nanoparticles as an adsorbent, to find out how to maximize the ability of silica nanoparticles to capture pollutants from the waste water by considering various synthesis parameters and determine the characteristic of various synthesis parameters. The steps of this research is as follows Silica extraction and formation of sodium silicate, Silica gel synthesis, preparing the silica partial Analysis using X-ray Fluorescence (XRF), Surface Area Analysis (BET) and Adsorption Studies. The process is carried out disappearance substance color.