چكيده به لاتين
New collagen-based cryogel, isinglass-graphene oxide (IG-GO), was prepared using Isinglass (IG) as collagen protein for rhodamine B (RhB) removal from an aqueous environment. The effects of various experimental parameters, such as pH, contact time, initial dye concentration, adsorbent dosage, and system temperature, on the adsorption process were studied. Furthermore, the adsorption isotherms and kinetics were investigated. The IG-GO cryogel was characterized by the nitrogen physisorption BET method, X-ray diffraction, scanning electron microscopy, and infrared spectroscopy. The maximum sorption capacities of the samples were 120 mg/g. The experimental adsorption data are all fitted well with the pseudo-first-order model and Langmuir isotherm. More importantly, the IG-GO cryogel still maintains a relatively high adsorption capacity after five cycles.