Assertion: silica's property | /r/HasProperty | revealed by co 2 adsorption measurements
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text: The synthesis and surface properties of the novel unsupported silica membrane as well as the unsupported blank silica and modified silica membranes were revealed by surface and microstructural techniques, such as water contact angle measurement, FTIR, X-ray, Solid-state 29Si MAS NMR, TGA and N 2 and CO 2 adsorption measurements.