Dalam kajian ini, ferum oksida nanokomposit (Fe2O3-CuO) telah disediakan dan digunakan sebagai penjerap untuk mengeluarkan metilena biru. Sampel disintesis berdasarkan dua kaedah iaitu kaedah tindak balas keadaan pepejal dan kaedah sol-gel. Dua sampel telah disediakan, iaitu SS02 (‘solid state’) dan SG02 (sol-gel) dan kedua-duanya telah dicirikan berdasarkan kawasan permukaan liang mikro dan jumlah isi padu liang. Bagi sampel SS02, kawasan permukaan liang mikro dan jumlah isi padu liang masing-masing adalah 5.9476 m2/g dan 0.003061 cm3/g. Manakala bagi SG02, kawasan permukaan liang mikro dan jumlah isi padu liang adalah 11.0242 m2/g dan 0.005762 cm3/g. Komposisi unsur sampel berkenaan telah diperolehi dengan XRD untuk memeriksa kehadiran unsur Fe2O3 dan CuO dan ia menunjukkan corak yang hampir sama untuk kedua-dua penjerap yang telah disintesis melalui kaedah yang berbeza. Keberkesanan penjerap ferum oksida nanokomposit terhadap metilena biru dinilai berdasarkan kepekatan awal pewarna (25-300mg / L), masa sentuhan (0-24 jam) dan suhu cecair (30-60⁰C). Walaubagaimanapun proses penjerapan yang dicapai terlalu minimun dalam kajian ini kerana ferum oksida nanokomposit didapati tidak sesuai untuk dijadikan penjerap dalam penyingkiran metilena biru.
_______________________________________________________________________________________________________
Iron oxide nanocomposite (Fe2O3-CuO) has been prepared and used as an adsorbent in this study to remove methylene blue. The process to synthesize the samples is based on two methods which are solid state reaction and sol-gel method. Two sample prepared, SS02 (solid state) and SG02 (sol-gel) was further characterized and the micropore surface area and total pore volume is determined. For SS02, the micropore surface area and total pore volume are 5.9476 m2/g and 0.003061 cm3/g respectively. Meanwhile for SG02, the micropore surface area and total pore volume are 11.0242 m2/g and 0.005762 cm3/g respectively. The elemental composition of the samples is obtained by XRD to check the presence of element Fe2O3 and CuO and it shows almost identical pattern for both adsorbent that had been synthesized by different method. The effect of initial dye concentration (25-300mg/L), contact time (0-24 hours) and solution temperature (30-60⁰C) were also evaluated through. However, the adsorption process is not obtained in this study because iron oxide nanocomposite is not suitable for adsorbent in methylene blue removal.
Preparation and characterization of iron oxide nanocomposite for removal of methylene blue / Azahirah Azhari