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author:

叶钊 (叶钊.) [1] | 潘海波 (潘海波.) [2] | 沈水发 (沈水发.) [3] | 陈天明 (陈天明.) [4]

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Abstract:

本文在频率分别为20kHz、30kHz、40kHz(电功率均为500W)的超声场中制备溶胶.用光散射法测得溶胶粒子粒径分别为29.4nm、18.3nm、13.2nm,对无超声场和超声场(40kHz)制备的凝胶进行超临界乙醇干燥.用XRD、BET、TEM、DRS对上述干燥的TiO2粒子进行表征,以光催化降解罗丹明B为模型反应.结果表明,在实验范围内溶胶粒径随超声波频率的升高而减小,加超声场制备的纳米TiO2粒子光催化活性比无超声场下制备的粒子高.

Keyword:

SOL-GEL法 乙醇 制备 干燥 溶胶 纳米TIO2光催化剂 超声场

Community:

  • [ 1 ] 福州大学化学化工学院,福州,350002

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Source :

应用声学

ISSN: 1000-310X

Year: 2003

Issue: 4

Volume: 22

Page: 16-20

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 1

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