Issue Date: January 9, 2012
Porous Silica Born From Rice Husks
A semicrystalline form of porous silica can be prepared from rice husks, according to the international team that developed the process (ACS Appl. Mater. Interfaces, DOI: 10.1021/am201619u). Silica is widely used commercially in applications that include sorption, gas separation, and catalysis. Porous high-surface-area forms of the material are generally made from silicon alkoxide precursors, which are prepared via multistep, energy-intensive, acid-based processes using raw materials such . . .
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