Application of  PAN‐N a Y  Composite for  CS  +  and  SR  2+  Adsorption: Kinetic and Thermodynamic Studies | Zendy

Faghihian Hossein | Zendy; Iravani Mozhgan | Zendy; Moayed Mohammad | Zendy

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Application of PAN‐N a Y Composite for CS + and SR 2+ Adsorption: Kinetic and Thermodynamic Studies

Author(s) -

Faghihian Hossein,

Iravani Mozhgan,

Moayed Mohammad

Publication year - 2015

Publication title -

environmental progress and sustainable energy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.495

H-Index - 66

eISSN - 1944-7450

pISSN - 1944-7442

DOI - 10.1002/ep.12084

Subject(s) - adsorption , sorption , endothermic process , polyacrylonitrile , composite number , ion exchange , freundlich equation , fourier transform infrared spectroscopy , zeolite , langmuir adsorption model , chemistry , nuclear chemistry , langmuir , ion , materials science , chemical engineering , organic chemistry , composite material , catalysis , polymer , engineering

In this research, a new composite adsorbent consisting of zeolite Y and polyacrylonitrile (PAN) was synthesized. The composite was characterized by XRD, XRF, FTIR, DTG, and SEM analysis. The adsorption behavior of the composite toward Cs + and Sr 2+ was investigated. The effect of pH, initial ion concentration, contact time, and temperature on sorption process was examined. The maximum adsorption capacity of the composite was 219.8 and 70.23 mg g −1 for Cs + and Sr 2+ , respectively. The kinetic of the process followed pseudo‐second‐order model. The equilibrium data were analyzed by the Langmuir, Freundlich, and D‐R isotherm models. The mean free energy of the sorption ( E ) for both ions was in the range of 8–16 kJ mol −1 , confirming an ion exchange mechanism had been carried out. Positive Δ H ° and negative Δ G ° were indicative of the endothermic and spontaneous nature adsorption. Obtained results revealed the PAN‐NaY composite was a desirable ion exchanger for Cs + and Sr 2+ removal. © 2015 American Institute of Chemical Engineers Environ Prog, 34: 999–1008, 2015

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