Synthetic conditions for the zeolitic octahedral metal oxide based on vanadotungstate are studied. The temperature, time, acidity, / ratio, cation species, and concentration affect the resulting materials. The study shows that mixing tungstate and VO in an aqueous solution generates cubane units ([WO]) at room temperature. The cubane units assemble with VO immediately to form a solid with an amorphous phase and nonporosity, which further crystallizes under a hydrothermal condition to form the crystalline microporous vanadotungstate. The zeolitic vanadotungstates act as effective adsorbents for the separation of propylene/propane. The active materials effectively separate propylene/propane even at high temperatures and high humidities.
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| http://dx.doi.org/10.1021/acs.inorgchem.2c01238 | DOI Listing |
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