TY - EJOUR
AU - Mozaffari, Nastaran
AU - Mirzahosseini, Alireza Haji Seyed
AU - Sari, Amir Hossein
AU - Aval, Leila Fekri
PY - 2023
DA - November
TI - Investigation of carbon monoxide gas adsorption on the Al2O3/Pd(NO3)2/zeolite composite film
T2 - Journal of Theoretical and Applied Physics
VL - 14
L1 - https://oiccpress.com/journal-of-theoretical-and-applied-physics/article/investigation-of-carbon-monoxide-gas-adsorption-on-the-al2o3-pdno32-zeolite-composite-film/
DO - 10.1007/s40094-019-00360-6
N2 - AbstractIn this study, Al2O3/Pd(NO3)2/zeolite composite films have been fabricated by roll coating method and characterized by X-ray diffraction, energy-dispersive X-ray spectroscopy and field emission scanning electron microscopy. The gas adsorption was tested in an experimental setup by a continuous gas analyzer KIMO KIGAZ 210 at constant temperature and pressure (32 °C and 1.5 bar) and as a function of reaction time (s). The inlet CO gas concentration was 150 mg L−1, and the saturation level of CO gas concentration was 5 mg L−1. The maximum adsorption capacity (qmax) and maximum adsorption efficiency (%) were calculated as 111.16 mg g−1 and 97%, respectively. Pseudo-first-order, pseudo-second-order, and intra-particle diffusion models were investigated to kinetic study of CO adsorption on Al2O3/Pd(NO3)2/zeolite adsorbents. Results indicated that CO adsorption follows the pseudo-second-order model well according to regression coefficient value (R2 = 0.98), and the value of pseudo-second-order rate constant of adsorption was obtained as 2 × 10−5 g mg−1 s−1. According to the intra-particle diffusion model, adsorption is affected by only one process. So, adsorption of CO by Al2O3/Pd(NO3)2/zeolite adsorbent indicated an effective adsorption by obtained results.
IS - 1
PB - OICC Press
KW - Adsorption, Alumina, Carbon Monoxide, Kinetic study, Palladium II nitrate, Zeolite 
EN -