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请各位高手帮忙翻译一段话，十分感谢您！ 光催化降解亚甲基蓝的实验以五月初下午两点的太阳光为光源(室外，太阳光没有遮掩)。过程如下：将0.25 g Sb2S3加入到盛有100 mL(10 mg/L)亚甲基蓝溶液的反应容器中，超声分散15 min，然后暗处避光磁力搅拌吸附1 h，使降解物在催化剂表面达到吸附平衡，用VIS-7200型分光光度计测试其吸光度并作为被降解物溶液的初始吸光度A0。再置于太阳光下进行光催化实验，同时磁力搅拌，定时取样，离心分离后，取上层清液在亚甲基蓝的最大吸收波长(λmax = 664 nm) 处测定试样的吸光值A，其降解率X 按照下式计算：X = ( A0 - Ax ) / A0 ×100 %[20]，式中： A0 为光照分解前亚甲基蓝的吸光值；Ax 为太阳光照分解后亚甲基蓝溶液的吸光值。 |
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jw227
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ygb7086(金币+25,VIP+0): 9-13 08:14
ygb7086(金币+25,VIP+0): 9-13 08:14
| Photocatalytic degradation of methylene blue experiments adopted the sunlight at two in the afternoon of early May as the light source (outdoor, unsheltered sunlight). The process is as follows: The Sb2S3 (0.25 g ) was added to in the reaction container of methylene blue solution 100 mL (10 mg / L), ultrasonic dispersion for 15 min, and then magnetic stirring for 1 h in the dark. After degradation products reached adsorption equilibrium on the catalyst surface, the absorbance was analyzed with the VIS-7200 spectrophotometer as the initial absorbance of degradation products, A0. Subsequently, photocatalytic experiments carried out in sunlight with magnetic stirring and regular sampling. After centrifuged, the absorbance (A) of the supernatant of methylene blue was tested at the maximum absorption wavelength (λmax = 664 nm) . The degradation rate ( X ) was calculated in accordance with the following formula: X = (A0 - Ax) / A0 × 100% [20], where A0 is the absorbance of methylene blue before light decomposition; Ax is the absorbance of methylene blue after light decomposition. |
2楼2009-09-11 16:49:15
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ygb7086(金币+5,VIP+0):谢谢 9-13 08:14
ygb7086(金币+5,VIP+0):谢谢 9-13 08:14
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（软件翻译） Photocatalytic degradation experiment of methylene blue in early may at two o 'clock in the afternoon sun, sun, outdoor lighting (no cover). Process is as follows: will Sb2S3 g into 1/4 cup with 100 mL (10 mg/L) methylene blue reaction containers, the solution of ultrasonic dispersing 15 min, and avoid light dark magnetic-driving adsorption, 1 h degradants adsorption equilibrium catalyst in the surface to, VIS - 72 type spectrophotometer test its absorbency and as the initial solution by degradants absorbency A0. Then put in the sunlight, photocatalytic experiments on magnetic mixing, regular sampling, centrifugal separation, take upper solution of methylene blue in the maximum absorption wavelength (lambda Max = 664 nm) in the determination of value A sample, the degradation rate calculated according to the next type X X = (A0 - Ax) / A0 by 100 % [20], type: A0 to decompose methylene blue light before the value, For the sun shine after decomposition Ax methylene blue light absorption solution. |
3楼2009-09-12 09:07:40
