TY - JOUR
T1 - Effect of ultrasound on synthesis of spherical silica
AU - Enomoto, Naoya
AU - Koyano, Tomohiro
AU - Nakagawa, Zenbe E.
PY - 1996
Y1 - 1996
N2 - Spherical particles of silica were prepared in the presence of ultrasound at various frequencies (20, 1740, 4000 kHz) and intensities (<25.4 W/cm2). It was found that the sphere size increased with increasing ultrasonic intensity and that the 20 kHz sonication induced agglomeration among the spheres. It was inferred that such agglomeration is dominated by a silanol group (-OH) at the surface of silica spheres. Size parameters, such as sphere size, agglomeration size, and ultrasonic vibration amplitude are discussed.
AB - Spherical particles of silica were prepared in the presence of ultrasound at various frequencies (20, 1740, 4000 kHz) and intensities (<25.4 W/cm2). It was found that the sphere size increased with increasing ultrasonic intensity and that the 20 kHz sonication induced agglomeration among the spheres. It was inferred that such agglomeration is dominated by a silanol group (-OH) at the surface of silica spheres. Size parameters, such as sphere size, agglomeration size, and ultrasonic vibration amplitude are discussed.
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U2 - 10.1016/1350-1477(96)00004-W
DO - 10.1016/1350-1477(96)00004-W
M3 - Article
AN - SCOPUS:0030194658
SN - 1350-4177
VL - 3
SP - S105-S109
JO - Ultrasonics Sonochemistry
JF - Ultrasonics Sonochemistry
IS - 2
ER -