Hydrothermal synthesis of quartz nanocrystals

被引：58

作者：

Bertone, JF ^{[1
]}

Cizeron, J ^{[1
]}

Wahi, RK ^{[1
]}

Bosworth, JK ^{[1
]}

Colvin, VL ^{[1
]}

机构：

[1] Rice Univ, Dept Chem, Houston, TX 77005 USA

来源：

NANO LETTERS | 2003年 / 3卷 / 05期

关键词：

D O I：

10.1021/nl025854r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper describes for the first time a chemical method for the preparation for nanocrystalline quartz. Submicron quartz powders are initially produced in hydrothermal reactions where soluble silica precursors precipitate as pure crystalline silica. To yield nanocrystalline material these particles can be purified and size selected by dialysis, filtration, and centrifugation. Transmission electron microscopy and X-ray diffraction illustrate that the product is pure phase a-quartz, consisting of isolated (i.e., nonaggregated) nanocrystals. Depending on the size selection method, crystallites with average sizes of 10 to 100 nanometers can be recovered.

引用

页码：655 / 659

页数：5

共 44 条

[1]

[Anonymous], COLLOID CHEM SILICA

[2]

ASHWELL WB, 1973, J PHYS E, V6, P435

[3] Synthesis of powder-like fine crystalline quartz [J].