Adsorbent materials based on magnetite nanoparticle from sand of Bayuran beach as a solution in water pollution.

The structure and phase of magnetite nanoparticle of iron sand from Bayuran beach was determined by X-ray diffraction and Fourier Transform Infrared (FTIR) spectroscopy. Surface morphology of the obtained magnetite nanoparticle was observed by Scanning Electron Microscope (SEM) and the compositional elements was determined by Energy dispersive X-ray diffraction (EDX). Last for the effectiveness of adsorbent materials based on magnetite nanoparticle obtained was analyzed using atomic absorption spectroscopy. Based on the result of XRD characterization, the magnetite nanoparticle was obtained has polycrystal structure with magnetite, Fe3O4 phase is dominant with crystallite size is around 30.08 nm. This result also supported by FTIR spectroscopy which is the absorption peaks of Fe-O bond had highest intensity at 2370.7; 3405.27; 3783.26 cm−1. It's also supported by EDX analysis, which is the mass percentage of Fe, O and FeO element was 54.55%, 25.00%, and 70.17%, respectfully. From the SEM analysis shows arough round and agglomerated morphology of magnetite nanoparticle was obtained with average particle size of ∼30 nm. This result is similar to XRD analysis of crystallite size. The order of effectiveness in reducing of PB level on the water pollution in Tegalrejo river, it done by using 3 form of magnetite nanoparticle i.e. powder, electrolyzed caplets and caplet. The result of AAS analysis, the powder form of magnetite nanoparticle is more effective to reduce the Pb metal in water pollution, the as followed by electrolyzed caplet and caplet of 88.59%, 82.47% and 78.52%, respectfully. Based on the result, can be concluded the coprecipitation method has been proven to produce magnetite nanoparticle that are effective as Pb metal adsorbent in water pollution. [ABSTRACT FROM AUTHOR]