Chiral Mesoporous Silica Materials

Cao, Yuanyuan; Che, Shunai

doi:10.1002/9783527682782.ch6

Cited by 1 publication

(1 citation statement)

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“…A number of chiral microporous materials such as zeolites SU-32 and ITQ37 [ 3 ], metal organic frameworks (MOFs) such as POST-1, supramolecular structures based on hydrogen-bonded organic frameworks (HOFs) and covalent organic frameworks (COFs) have been developed, demonstrating various concepts of organic chiral template imprinting within inorganic and hybrid structures [ 3 , 14 ]. Che et al and Tatsumi et al have developed a range of chiral mesoporous silica (CMS) materials prepared via anionic surfactant templating routes [ 15 , 16 , 17 ]. A similar approach has also been utilised to prepare chiral mesoporous silica materials with anionic porphyrin templates and cationic organosilanes enhanced with a small amount of ( R )-1,1′-bi-2-naphthol to achieve enantiopurity [ 17 ].…”

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confidence: 99%

Equilibrium and Kinetic Study of l- and d-Valine Adsorption in Supramolecular-Templated Chiral Mesoporous Materials

Huang

Garcia‐Bennett

2021

Molecules

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Adsorption kinetic studies are conducted to investigate the potential to use chiral mesoporous materials nanoporous guanosine monophosphate material-1 (NGM-1) and nanoporous folic acid material-1 (NFM-1) for the enantiomeric separation of l- and d-valine. A pseudo-second-order (PSO) kinetic model is applied to test the experimental adsorption equilibrium isotherms, according to both the Langmuir and Freundlich models and the characteristic parameters for each model are determined. The calcined versions of both NGM-1 and NFM-1 fit the Langmuir model with maximum sorption capacities of 0.36 and 0.26 g/g for the preferred adsorption enantiomers, d-valine and l-valine, respectively. Experimental results and the analysis of adsorption models suggest a strong adsorbate–adsorbent interaction, and the formation of a monolayer of tightly packed amino acid on the internal mesopore surface for the preferred enantiomers.

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