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Synthesis of Diatomite-Based Mesoporous Wool-Ball-Like Microspheres and Their Application for Toluene Total Oxidation Reaction
- Authors
- Quoc-Chon Le; Chinh Chien Nguyen; Thi Thanh Nhi Le; Lefevre, Thierry; Minh Tuan Nguyen Dinh; Hong, Sung Hyun; Kim, Soo Young; Quyet Van Le
- Issue Date
- 2월-2020
- Publisher
- MDPI
- Keywords
- diatomite; surfactant-assisted synthesis; hydrothermal treatment; dissolution-recrystallization; wool-ball-like microsphere; catalyst support
- Citation
- NANOMATERIALS, v.10, no.2
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOMATERIALS
- Volume
- 10
- Number
- 2
- ISSN
- 2079-4991
- Abstract
- Diatomite (DE) has attracted considerable attention owing to its abundance, low cost, and potential for a wide variety of applications. This work reports the development of mesoporous wool-ball-like (WBL) microspheres from natural DE through a simple hydrothermal treatment. We discovered that the presence of cetyltrimethylammonium bromide is a prerequisite for generating monodispersed WBL microspheres. The mechanism for the transformation of pristine DE into mesoporous microspheres through dissolution-recrystallization was clearly investigated. Interestingly, the microspheres exhibited a specific surface area 25-60 times larger than that of the pristine DE. The application of WBL microsphere DE as an effective support for metallic catalysts in the toluene total oxidation reaction was demonstrated.
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