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[求助]
求几句话英语翻译
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| 首先用stober法制备SiO2微球再以溶胶-凝胶法制备SiO2/TiO2复合物，并以亚甲基蓝为染料，探索了二氧化硅的颗粒大小与焙烧温度对复合物吸附效果和光催化活性的影响。结果表明：SiO2颗粒越小，吸附活性越好；实验还发现：染料在催化剂表面的吸附是影响催化剂光催化活性的重要因素,吸附越好催化活性越差；还发现还发现取样时间较早时，焙烧700度吸附效果最好，4h取样时，1000度效果最好。 |
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sosako
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sltmac: 金币+1 2012-06-03 09:16:50
sltmac: 金币+1 2012-06-03 09:16:50
| First，by the Stober Method，SiO2 microspheres were prepared，and then by the Sol -Gel Method，SiO2/TiO2 compounds were prepared again. With methylene blue as the dye, the impacts of the silica particle size and calcination temperature on the complex adsorption effect and photocatalytic activity were explored.The results showed that the smaller the particles of SiO2 were, the better the adsorption activity were.It was found in the experiment that the dye adsorption on the catalyst surface was an important factor to affect the photocatalytic activity, and that the better the dye adsorption was,the worse the catalytic activity was .Fnally,it was also found that the earlier the sampling time was, the better the effect calcined at 700 °C adsorption,and that the best effect was sampling after 4h and 1,000 degrees. |
2楼2012-06-03 02:39:01