Template-free synthesis of kaolin-based mesoporous silica with improved specific surface area by a novel approach
Source abstract
Abstract
Abstract A novel template-free method is proposed and demonstrated to develop the facile top-down strategy of preparing mesoporous materials from natural minerals. In the process, kaolin was pre-calcined, alkali-activated and finally acid-etched into mesoporous silica (MS) of improved specific surface area (604 m 2 /g) and large pore size (4.41 nm) at the maximum probability. The characterizations of XRF, XRD, TG, FT-IR, SEM, TEM and N 2 adsorption/desorption were carried out and the material evolution mechanism was clarified. The as-resulted MS showed favorable adsorption ability toward methylene blue with the monolayer adsorption capacity up to 652.9 mg/g, indicating its promising potential in adsorption application. The template-free method proposed may benefit not only the clay products but also the wide application of mesoporous materials cost-effectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mesoporous Materials and Catalysis · Clay minerals and soil interactions · Adsorption and biosorption for pollutant removal
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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