Fenton, Julie L.; Burke, David W.; Qian, Dingwen; Cruz, Monica Olvera de la; Dichtel, William R. published an article in 2021. The article was titled 《Polycrystalline Covalent Organic Framework Films Act as Adsorbents, Not Membranes》, and you may find the article in Journal of the American Chemical Society.Application In Synthesis of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde The information in the text is summarized as follows:
Covalent organic framework (COF) membranes are of great promise for energy-efficient separations Thick, polycrystalline COF films have been reported to sep. dyes, salts, bacteria, and nanoparticles on the basis of size-selective transport through ordered pores. Here, we show that these materials function as adsorbents, not as size-sieving membranes. Binding isotherms of several dyes typical of the COF membrane literature to three COF powder samples illustrate that COFs are high-capacity adsorbents with affinities that span a range of 3 orders of magnitude, trends which map onto previously reported separation behavior. Computational results suggest that observed differences in adsorption can be correlated to variable entropic gains driving the adsorption process. Polycrystalline COF pellets show volume-dependent and flow-rate dependent “”rejection”” of dyes, consistent with an adsorption-based removal mechanism. Previous reports of thick, polycrystalline COF membranes used low flow rates and small dye volumes to probe rejection capabilities, where membrane and adsorbent behavior is not distinguishable. A mixed dye separation experiment in flow shows affinity-dependent performance. These results necessitate a careful reexamination of the COF membrane literature, as separations based on differential transport through 2D COF pores remain an important yet unrealized frontier. In addition to this study using 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde, there are many other studies that have used 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4Application In Synthesis of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde) was used in this study.
2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4) is a member of phloroglucinol derivatives. Phloroglucinol derivatives are a major class of secondary metabolites. Phloroglucinol compounds can be classified into monomeric, dimeric, trimeric and higher phloroglucinols, and phlorotannins.Application In Synthesis of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde
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