Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 4, Issue 2, Pages 977-981Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am201619u
Keywords
silica nanoparticles; rice husk; porous; biomass; hierarchical
Funding
- U.S. Environmental Protection Agency [SU-83508401]
- U.S. Department of Agriculture [2011-38422-30803]
- Fundamental Research Funds for the Central Universities [2011ZM0046]
- National Natural Science Foundation of China [1176093]
- Texas State University-San Marcos
- Research Corporation for Science Advancement
- Welch Foundation
- NIFA [2011-38422-30803, 579122] Funding Source: Federal RePORTER
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Biogenic silica. nanoparticles (25-30 nm in diameter). were synthesized from rice husks. The characterizations revealed that the silica nanoparticles were composed of smaller primary particles (ca. 4.2 nm in diameter), and their clustering led to a porous structure with a surface area of 164 m(2)/g. Under the controlled melting catalyzed by K+, such silica nanoparticle clusters can gradually fuse to form semicrystalline porous silica frameworks with tunable pore size and structural integrity.
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