Khan Aftab Aslam Parwaz, Patil Mallikarjunagouda B, Rathod Laxmibai P, Vader Shivalila G, Raizada Pankaj, Singh Pardeep, Alotaibi Maha M, Ansari Mohammad Omaish, Khan Anish, Azum Naved, Rub Malik Abdul, Arshad Muhammad Nadeem, Asiri Abdullah M
Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
Bharat Ratna Prof. CNR Rao Research Centre, Basaveshwar Science College, Bagalkot 587101, India.
Polymers (Basel). 2023 Feb 17;15(4):1011. doi: 10.3390/polym15041011.
The potential of nanocomposite membranes (NCMs) prepared by the sodium alginate polymer and embedded with synthesized zeolitic imidazole framework-8 (ZIF-8) as fillers having microporous structure in the application of separation of gaseous mixture generated by the process of methane reforming was assessed. ZIF-8 crystals were created through hydrothermal synthesis, with sizes varying from 50 to 70 nm. NCMs were prepared with a 15% filler loading, i.e., synthesized ZIF-8. NCMs (ZIF-8) having H permeability of 28 Barrer and H/CH selectivity of 125 outperformed neat polymer membranes in terms of separation performance at ambient temperature and 4 kg/cm pressure. The purity of H increased to as high as 95% among the measured values. The NCMs did not, however, outperform a neat polymer membrane in terms of their ability to separate mixtures of gases. Moreover, the combination of ZIF-8 as a filler with sodium alginate was new and had not been reported previously. As a result, it is worthwhile to investigate.
评估了由海藻酸钠聚合物制备并嵌入具有微孔结构的合成沸石咪唑骨架-8（ZIF-8）作为填料的纳米复合膜（NCM）在甲烷重整过程产生的气体混合物分离应用中的潜力。ZIF-8晶体通过水热合成制备，尺寸在50至70纳米之间变化。制备了填料负载量为15%的NCM，即合成的ZIF-8。在环境温度和4千克/平方厘米压力下，具有28巴雷尔的氢气渗透率和125的氢气/甲烷选择性的NCM（ZIF-8）在分离性能方面优于纯聚合物膜。在所测值中，氢气纯度提高到高达95%。然而，NCM在分离气体混合物的能力方面并未优于纯聚合物膜。此外，ZIF-8作为填料与海藻酸钠的组合是新颖的，且此前未被报道。因此，值得进行研究。
