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从图中可看出三种样品都形成了孔，同时从表3-1中可以看出，纯样品比表面积最小。从光催化活性测试中也发现a的活性较另外两个更小，说明比表面积对光催化活性有影响；b的比表面积最大，c次之，但吸附效果应该越好，光催化活性越好；但光催化活性测试表明，共掺杂的光催化活性最高，这说明比表面积只是影响光催化活性的重要因素之一，而且进一步说明了S、N共掺杂是协同作用并且这种协同作用在本实验中起主导作用。 急用！谢谢！ |
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resonant
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sirljz(金币+3):谢谢交流 2010-04-13 13:57
yujiao8819(金币+4, 翻译EPI+1):谢谢 2010-04-14 09:36
sirljz(金币+3):谢谢交流 2010-04-13 13:57
yujiao8819(金币+4, 翻译EPI+1):谢谢 2010-04-14 09:36
没看到你的样品和实验，只能臆测。将就一下 你的中文表述好像不很通顺... As shown in Figure X, three samples all formed hole structure, while according to Table 3-1, pure sample obtained the minimal specific area. photocatalysis activity assay suggested sample a is less active than the other two, which indicated specific area exerts effects on catalytic activity- sample b has a maximal specific area, sample c takes second place...感觉不对劲，停止翻译... [ Last edited by resonant on 2010-4-13 at 20:32 ] |
3楼2010-04-13 13:14:38
2楼2010-04-13 12:44:07
lastzealot
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It is clearly observed that holes have been formed in all of the three samples. At the same time, from Fig. 3-1, the specific surface area of the pure sample is the smallest. It is also seen from the characterization of photocatalytic activity that the activity of sample A is smaller that the other two, which indicates the specific surface area has some influence on the photocatalytic activity. The specific surface area of B is the largest followed by that of C, so the adsorption should be better, and the photocatalytic activity should be better. However, the characterization of photocatalytic activity shows that the catalytic activity of codoping is the upmost one. This indicates that the specific surface area is only one important factor of photocatalytic activity and the codoping of S and N has some synergistic effect which plays the dominant role in the study. |
4楼2010-04-13 14:01:36
lastzealot
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yujiao8819(金币+16):谢谢 2010-04-14 09:37
| It is clearly observed that holes have been formed in all of the three samples. At the same time, from Fig. 3-1, the specific surface area of the pure sample is the smallest. It is also seen from the characterization of photocatalytic activity that the activity of sample A is smaller that the other two, which indicates the specific surface area has some influence on the photocatalytic activity. The specific surface area of B is the largest followed by that of C, so the adsorption should be better, and the photocatalytic activity should be better. However, the characterization of photocatalytic activity shows that the catalytic activity of codoping is the upmost one. This indicates that the specific surface area is only one important factor of photocatalytic activity and the codoping of S and N has some synergistic effect which plays the dominant role in the study. |
5楼2010-04-13 19:41:20