چكيده به لاتين
ABSTRACT:
In the present report, the nanofibrous filter media based on polyacrylonitrile (PAN) with different percentages of activated carbon particles as gas adsorbent was produced. Uniform PAN nanofiber mats (average diameter 273 nm) were fabricated via electrospinning process after optimization of different parameters. Waste tea-based activated carbon was synthesis by two methods, chemical activation and microwave radiation energy using phosphoric acid (H3PO4) as the activation agent. It was found that the maximum surface area, average pore diameter and total pore volume of AC (759.15 m2 g-1, 4.23 nm 0.80 cm3 g-1 respectively) achived by using microwave radiation energy. Nanofiber hybrid (PAN/AC) preparated by two different amounts of AC solution (3 and 5 wt%) and electrospray procces used to indicate the adsorption capacity and selectivity of SO2, CO2 and CH4. Investigation of adsorption isotherms shows that enhancement in the surface of the activated carbon cause the improvement of SO2, CO2 and CH4 adsorption performance of PANNF@ACM-H and PANNF@ACN-H from 11.5, 8.5, 5 to 12.5, 9.5, 6 mmol g-1 respectively at 21 bar and 298 K.
Keywords: Air pollution, hybrid nanofiber, electrospinning, adsorption, activated carbon,
