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Luminol Intensified Sonoluminescence in Sodium Aluminate Solutions
Liu Jibo*1, Chen Qiyuan2, Zhang Muqun2, Yin Zhoulan2, Zhang Pingmin2
1.Zhenghou Research Institute China Aluminium Corporation, Zhengzhou 450041;2.College of Chemistry and Chemical Engineering, Central South University, Changsha 410083
Abstract:
Ultrasonic processing on sodium aluminate solutions was proved to have effects on the gibbsite crystallization process from sodium aluminate solution. In order to investigate the mechanism of the ultrasonic intensification, the sonofluorescence spectrum was detected by fluorescence spectrometer in sodium alumiante Luminol solutions, and the spectrum under the conditions of various ultrasonic power and different composition of sodium aluminate solutions were studied. It is found that the sodium aluminate Luminol solution can irradiate fluorescence by ultrasonic processing above the given power; the intensity of sonofluorescence are relatively low in sodium aluminate solutions with high concentration and low αk(mol ratio of Na2O/Al2O3 in sodium aluminate solution). The relationship between the sonofluorenscence and ultrasonic intensification on gibbsite crystallization process from sodium aluminate solutions were also discussed. The conclusion that the ultrasonic effects are influenced by ultrasonic cavitation and intensity of sonofluorescence spectrum is deduced.
Key words:  Ultrasound, Sodium aluminate solution, Sonofluorescence, Luminol
FundProject:
铝酸钠溶液的鲁米诺增强声致发光研究
刘吉波*1, 陈启元2, 张牧群2, 尹周澜2, 张平民2
1.中国铝业股份有限公司郑州研究院,郑州,450041;2.中南大学化学化工学院,长沙,410083
摘要:
用荧光光谱分析仪测定了在超声作用下的铝酸钠-Luminol溶液的荧光光谱.并对不同超声功率、不同组成的铝酸钠溶液的声致荧光光谱进行了研究,发现在超声空化时,铝酸钠-Luminol溶液可以产生声致荧光;在相同功率的超声波作用下,浓度较高,铝酸钠溶液中Na2/O/Al2O3摩尔比较低的铝酸钠溶液的声致荧光强度较弱.同时讨论了声致荧光与超声强化铝酸钠溶液结晶过程的关系.
关键词:  超声  铝酸钠溶液  声致荧光  Luminol
DOI:10.1088/1674-0068/18/4/564-568
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