Preparation of aldehydic electrospun PAN mats for ammonia removal from wastewater

摘要: Novel electrospun polyacrylonitrile (PAN) nanofiber mats and PAN fabric were chemically modified by dissolved anhydrous stannous chloride diethyl ether saturated with hydrogen to contain aldehyde groups on their surfaces, which are suitable for ammonium adsorption due high affinity NH4+ ion. Scanning electron microscopy (SEM), Fourier-transform infrared spectra (FT-IR) employed characterize the prepared adsorbents. FT-IR of these adsorbents confirmed that successfully formed surface The aldehydic assessed chelating property ion from aqueous solution. effects contact time amounts adsorbed into also studied. Results revealed removal increased increasing finally reached equilibrium at about 3.5 h 4 fabric, respectively. performance initial concentration 300 ppm via isotherm studies was investigated. maximum efficiency (% R) 48.33 70 indicated both followed Langmuir isotherm.