TITANIUM DIOXIDE (TIO2) COATED MAGNETIC IRON OXIDE (FE3O4) NANOPARTICLES FOR THE REMOVAL OF BISPHENOL A (BPA) AND BISPHENOL S (BPS) IN AQUEOUS SOLUTION AND METHOD OF SYNTHESIZING THEREOF

The present invention relates to a nanocomposite adsorbent composition for used in the removal of bisphenol A (BPA) and bisphenol S (BPS) in water. The nanocomposite adsorbent composition comprising magnetic iron oxide (Fe3O4) nanoparticles whose surface is coated with titanium dioxide (TiO2) having a Brunauer? Emmett?Teller (BET) specific surface absorption area of 730.1752 m2/g. The method of synthesizing the nanocomposite adsorbent composition comprising the steps of (a) preparing magnetic iron oxide (Fe3O4) nanoparticles via chemical co-precipitation method; (b) dispersing said magnetic iron oxide (Fe3O4) nanoparticles in ethanol (EtOH) to obtain ferrofluid solutions; (c) mixing tetraethyl orthotitanate (TEOT) with ethanol (EtOH), deionized water (H2O) and hydrochloric acid (HCl) to obtain titanium dioxide (TiO2) precursor solution; (d) adding said titanium dioxide (TiO2) precursor solution into said ferrofluid solutions to obtain a mixture solution; (e) sonicating said mixture solution to obtain a stable mixture solution; (f) isolating said stable mixture solution by magnetically separation to obtain iron oxide (Fe3O4)/titanium dioxide (TiO2) core shell particles; (g) washing said iron oxide (Fe3O4)/titanium dioxide (TiO2) core shell particles; (h) drying said iron oxide (Fe3O4)/titanium dioxide (TiO2) core shell particles by heating process; and (i) calcinating said iron oxide (Fe3O4)/titanium dioxide (TiO2) core shell particles to obtain a nanocomposite adsorbent composition.