Sharma, Jeet; Misra, S. K.; Kulshrestha, Vaibhav published an article in 2021. The article was titled 《Internally crosslinked poly(2,6-dimethyl-1,4-phenylene ether) based anion exchange membrane for recovery of different acids by diffusion dialysis》, and you may find the article in Chemical Engineering Journal (Amsterdam, Netherlands).Electric Literature of C6H11NO The information in the text is summarized as follows:
Acid recovery from acidic waste is a critical issue to be focused on nowadays. Chem. approaches for recovery are not com. viable and energy intensive to save the environment. Here, we report internally crosslinked poly (2,6-dimethyl-1,4-phenylene ether) (PPE) based anion exchange membranes (AEMs) for acid recovery by diffusion dialysis, prepared via quick grafting of N-methyl-4-piperidone using ultrasonication. The prepared AEMs are assessed for their physicochem. parameters and depicted water uptake (WU) and ion-exchange capacity (IEC) in the range 22.00%-31.00% and 0.64 meq/g-2.18 meq/g resp. for Cl-1, NO-3 and SO2-4 ions. AEMs were investigated for recovery of hydrochloric acid (HCl), nitric acid (HNO3) and sulfuric acid (H2SO4) from simulated effluent based on their proton diffusion coefficient (U+H), separation factor (S) and recovery efficiency. These membranes illustrated the proton diffusion coefficient as high as 0.065 m h-1 and enhanced separation factor values up to 132 at 27°C. Recovery performance for different acids is corroborated based on unique self-organized membrane structure, studied using AFM phase imaging and cumulative influence of bulk diffusion coefficient, ion-exchange capacity, and hydration radii of Cl-1, NO-3 and SO2-4 ions. The acid recovery efficiency illustrated the trend HCl > HNO3 > H2SO4. The hydrate (-OH) functionality with a non-overlapping set of lone pairs on oxygen enhances the proton mobility via Grotthuss mechanism inside the membrane matrix and provides a cradle-like pathway for high proton mobility. The results are pronounced for fabricated membranes compared to com. available standards for acid recovery via diffusion dialysis. In addition to this study using 1-Methyl-4-piperidone, there are many other studies that have used 1-Methyl-4-piperidone(cas: 1445-73-4Electric Literature of C6H11NO) was used in this study.
1-Methyl-4-piperidone(cas: 1445-73-4) is a member of piperidine. Piperidine is a key saturated heterocyclic scaffold found in several of the top-selling small molecule pharmaceuticals and natural alkaloids, with a diverse range of biological activities. Hence, continuous efforts have been made to develop convenient methods to prepare piperidine derivatives.Electric Literature of C6H11NO
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem