利用改装的家用微波炉和自制的无电极灯(EDL)试验了5种酚在水溶液中的微波辅助光催化降解效果。结果表明,反应30 m in,微波辅助光催化作用(MW/EDL/TiO2)能去除80%以上的苯酚、间硝基苯酚、对氯苯酚和对甲酚,相应溶液的总有机碳(TOC)均减...利用改装的家用微波炉和自制的无电极灯(EDL)试验了5种酚在水溶液中的微波辅助光催化降解效果。结果表明,反应30 m in,微波辅助光催化作用(MW/EDL/TiO2)能去除80%以上的苯酚、间硝基苯酚、对氯苯酚和对甲酚,相应溶液的总有机碳(TOC)均减少70%以上,2-萘酚的去除率为59%,溶液TOC减少54%;微波(MW或MW/TiO2)作用对酚的去除率有一定贡献;对上述5种酚的微波辅助光催化反应动力学进行了初步研究,发现均符合准一级动力学方程。展开更多
A finite volume model of a low pressure Ar-Hg electrodeless lamp with external coils is established. The physical configuration is similar to the OSRAM/ENDURA 70 W lamp. A Maxwellian energy distribution is assumed. Tw...A finite volume model of a low pressure Ar-Hg electrodeless lamp with external coils is established. The physical configuration is similar to the OSRAM/ENDURA 70 W lamp. A Maxwellian energy distribution is assumed. Two dimensional behaviors of the most important plasma parameters such as the electron density, the electron temperature and the most important mercury states are discussed. Results are in good agreement with former studies and the general understanding in this area. Also, the influence of the argon pressure is studied. Based on the simulation, the population of the main resonance state, Hg (63p1) depends on the argon pressure and the optimized value is about 300 mTorr.展开更多
The intensity of fluorescence spectral lines of Rb atoms in the region of 350-1110nm is measured in eletrodeless discharge lamp. The population ratio between the excited states is calculated according to the spontaneo...The intensity of fluorescence spectral lines of Rb atoms in the region of 350-1110nm is measured in eletrodeless discharge lamp. The population ratio between the excited states is calculated according to the spontaneous transition probabilities with rate equations. At the same time, the population density of energy level is also obtained. The results provide the potential applications of electrodeless discharge lamp in atomic filter and optical frequency reference at higher excited states without a pumping laser.展开更多
文摘利用改装的家用微波炉和自制的无电极灯(EDL)试验了5种酚在水溶液中的微波辅助光催化降解效果。结果表明,反应30 m in,微波辅助光催化作用(MW/EDL/TiO2)能去除80%以上的苯酚、间硝基苯酚、对氯苯酚和对甲酚,相应溶液的总有机碳(TOC)均减少70%以上,2-萘酚的去除率为59%,溶液TOC减少54%;微波(MW或MW/TiO2)作用对酚的去除率有一定贡献;对上述5种酚的微波辅助光催化反应动力学进行了初步研究,发现均符合准一级动力学方程。
文摘A finite volume model of a low pressure Ar-Hg electrodeless lamp with external coils is established. The physical configuration is similar to the OSRAM/ENDURA 70 W lamp. A Maxwellian energy distribution is assumed. Two dimensional behaviors of the most important plasma parameters such as the electron density, the electron temperature and the most important mercury states are discussed. Results are in good agreement with former studies and the general understanding in this area. Also, the influence of the argon pressure is studied. Based on the simulation, the population of the main resonance state, Hg (63p1) depends on the argon pressure and the optimized value is about 300 mTorr.
基金supported by the National Natural Science Foundation of China (10874009 and 11074011)
文摘The intensity of fluorescence spectral lines of Rb atoms in the region of 350-1110nm is measured in eletrodeless discharge lamp. The population ratio between the excited states is calculated according to the spontaneous transition probabilities with rate equations. At the same time, the population density of energy level is also obtained. The results provide the potential applications of electrodeless discharge lamp in atomic filter and optical frequency reference at higher excited states without a pumping laser.