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wuyao118金虫 (小有名气)
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[求助]
请帮忙翻译两小段话，英译中
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1 半导体多相光催化技术能直接利用太阳光和空气中的氧气来彻底降解环境中的有毒有害污染物，使之成为无毒的小分子化合物，因而已成为一项绿色污染治理新技术。然而困扰这项技术投入大规模应用的突出问题是已开发的光催化剂对可见光的吸收能力不强、量子效率不高，以致太阳能的利用率低，且目前没有找到有效的解决办法。 2 对催化剂进行贵金属修饰及金属、非金属离子的掺杂改性，优化合成和改性条件，制备出可见光吸收能力强、量子效率高、能充分利用太阳能降解污染物的可见光光催化剂。以含酚或染料废水及生活或自然环境中的污染物为降解对象，可见光为光源测试其光催化活性，优化工艺参数，为该光催化剂的大规模实际应用提供理论和实验基础。 |
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fjtony163
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米米
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wuyao118(金币+40, 翻译EPI+1): ★★★很有帮助 谢谢 2012-02-20 19:01:25
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Semi-conductor multi-phase light catalyst technology can directly use the sunlight and oxygen in air to degrade completely the toxic pollutants in environment and make them nontoxic small-molecular compounds, so it is a new environmental-friendly technology to solve pollution. However, the obvious problem keeping this technology from mass application is the existed light catalyst does not have good absorption of visible light and low quantum efficiency, so the solar power utilization rate is low. Besides, there has been no way to solve it so far. 以上是第一段。 |
2楼2012-02-20 17:47:35
fjtony163
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米米
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wuyao118(金币+20): ★★★很有帮助 2012-02-20 19:01:43
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2.Noble metal modification on catalyst and modified mixture, optimized synthesis, and modified condition of metal and non-metal ions can produce visible light catalyst with good visible light absorption, high quantum efficiency , and high solar power utilization rate. Use waste water with phenol or pigment or environment pollutants as degradation object and visible lights as light source to test its light catalyst activity and optimize industrial parameters. They would provide theoretical and experimental basis for mass application of this technology. 以上为第二段。 参考一下。 |
3楼2012-02-20 17:54:47
weichin
铁杆木虫 (职业作家)
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wuyao118(金币+50): ★★★★★最佳答案 2012-02-20 19:03:49
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供参考： Owing to its capability of completely degrading toxic and hazardous pollutants in the environment into non-toxic small molecular compounds by direct utilization of the sunlight and oxygen in the air, the semiconductor multiphase photocatalytic technology has become a new green technology for pollution control. However, the main bottleneck for large-scale application this technology lays in the low quantum efficiency and weak ability of the photocatalysts developed in absorbing visible light, causing the low-efficiency use of solar energy, for which no effective solutions have yet been discovered by far. Through noble metal modification and metal/nonmetal cation doping of the catalyst under optimized synthesis and modification conditions, high quantum efficiency photocatalysts with high ability to absorb visible light were prepared to make full use of solar energy in the degradation of pollutants. The photocatalytic activity was tested through degradation of phenolic wastewater/dye wastewater, domestic pollutants and pollutants in the natural environment with the visible light as the light source, which, with optimized technical parameters, provided theoretical and experimental basis for large-scale practical application of the photocatalysts. |
4楼2012-02-20 18:15:39
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