查询词典 azo dye

But, because of the complexity of the dye molecule, there has been short of detailed comprehension in its photocatalytic degradation process. The key problem is difficult to detect the intermediates clearly. In this paper, the photocatalytic degradation of azo dye Congo red in water solution was investigated on UV irradiating TiO2 in the homemade reactor. The optimization conditions were determined and then the rate of decolorization, COD decrease, yield of CO2 and varies pH of aqueous solution during illumination were detected; The varies of the possible intermediates during degradation process were monitored with UV-VIS spectrum and HPLC. The possible mechanism of Congo red photocatalytic degradation is discussed combined with the data of MS.

本文选择有代表性的常见偶氮染料—刚果红作为研究对象，以自制TiO2为催化剂和小功率紫外灯为光源，在自制光反应器上确定了光催化降解的优化条件，并在这个优化条件下测定了降解过程中的脱色率、COD去除率和CO2生成量；利用数显酸度计、紫外可见分光光度计和高效液相色谱仪跟踪测定了降解过程中的可能产物，并结合质谱的数据初步探讨了刚果红的可能降解机制。

The main action of TiO_2 loaded on stilbite, rectorite, kaolin on azo dye was adsorption . The main action of quartz loading TiO_2 photocatalyst on azo dye was photocatalysis.Surface modification was made on quartz with ( OCH_3 )_3Si(CH_2)_3SH by dry process.

辉沸石、累托石、高岭土负载纳米TiO_2光催化材料对偶氮染料的作用主要为吸附，石英负载纳米TiO_2光催化材料对偶氮染料的作用主要为降解。

An anaerobic-aerobic intermittent CSTR process was used to decolorize mixed dye with E. coli NO3 strain at a hydraulic retention time of 32, 18, and 10 h. The color-removal efficiency was around 70 ~ 80%. Under steady operation for over 117 h, the total decolorization was 10900, 18200, and 7590 for HRT=32, 18, and 10 h, respectively. After repeated operation cycles, the decolorization rate of E. coli NO3 was always higher than the original cycle. This may be attributed to the acclimation effect since the E. coli NO3 cells were repeatedly exposed to the azo dye.

NO3於HRT = 10、18、32小时之条件下进行厌氧-好氧间歇式CSTR生物反应器褪色操作，褪色率可以达到7080﹪左右；在约117小时的稳定褪色操作下，总褪色量分别为10900、18200及7590，这显示NO3在长时间之间歇式CSTR褪色操作下，不但稳定且具有优异之褪色能力；若将一组好氧、厌氧步骤视为一个循环去探讨褪色率之变化，则可观察到随著循环次数增加其褪色率逐次上升，之后则明显下降，这与摇瓶重复批次实验相似之结果，也可以解释为驯养效应所导致。

Azoreductase in E.coli.JM-109 can damage -N=N- to decolorize azo dye. Decolonization conditions,such as dye categories,temperature,pH,salinity,oxygen were studied in this article.E.coli.

由于E。 coli JM-109含有的偶氮还原酶能破坏偶氮染料的-N=N-使其脱色，因此本文考察了其脱色的条件（温度，pH，盐度，供氧量）及其适用范围。

A simulated printing and dyeing wastewater, prepared using the undegraded azo dye 4BS and macromolecule chemical dye printing paste CMC as treatment object, the influence of initial pH value, initial concentration, and the concentrations of photocatalyst H2O2 and Fe(superscript 3+) to the photocatalytic degradation effect was investigated, and the related kinetic rule was explored.

以高压汞灯为光源，选用难降解偶氮染料4BS和高分子化学浆料CMC配制的模拟印染废水为处理对象，考察了初始pH值、初始浓度以及光助催化剂H2O2浓度、Fe(上标 3+)浓度对光催化降解效果的影响，并对有关的光催化反应动力学规律进行了探讨。

The main intermediates were detected during decomposition,such as acetic acid,oxalic acid,malonic acid,phenol,3-hydroxyhypnone,naphthalene,benzene sulfonic acid,phthalic acid,β-naphthalene etc . by ultraviolet-visiblespectroscopy,ion chromatographand gas chromatograph coupled with mass spectrophotometertechniques.The possible degradation pathway of Acid Orange Ⅱ was also speculated,that was,hydroxyl radical reacted with the azo linkage-bearing carbon of naphthol-ring,and the C—N cleaved,the azo-dye decolored and mineralized.

运用紫外光谱、离子色谱、色谱-质谱联用等方法，测定出酸性橙Ⅱ的主要降解产物有乙酸、乙二酸、丙二酸、苯酚、3-羟基苯乙酮、萘、苯磺酸、邻苯二甲酸、β-萘酚等，并依此推测酸性橙Ⅱ的降解机理，即羟基自由基攻击酸性橙Ⅱ分子上与萘环相连的C—N键，导致C—N键的断裂，进而染料脱色矿化。

Because the biochemical degradation can degrade azo dye more efficiently and with less possibility of re-polluting, therefore it will be the beacon for developing of dye wastewater disposing technique.

一般而言，生化处理法具有对底物的降解较彻底，二次污染小等特点，可能成为一种处理偶氮染料废水的较好方法。

To improve the nonlinear optical property and stability of azo-dye chromophore, the nonlinear optical polyimide attached with azo chromophore side-chain is synthesized by diazo coupling reaction of 4-nitrohenzediazonium tetrafloroborate.

为了提高材料的非线性光学性能和偶氮染料发色团的稳定性能，通过对－稍基苯基重氮氟硼酸盐的重氮偶合反应，合成了侧链含偶氮非线性光学活性基团的聚酰亚胺材料，幷用红外光谱对其进行了结构表徵。

The photodegradation kinetics of novel ferrocenyl azo dye and corresponding azo dye solution has been studied by UV-Vis absorption spectroscopy.

本文还研究了含二茂铁基偶氮染料及相应的偶氮染料溶液的光降解动力学，在溶液中它们的光降解反应遵循零级动力学模型。

This photocatalyst was used to treat wastewater containing azo dye. It shows that natural rutile photocatalyst has certain photocatalytic action on azo dye.

用制备的天然金红石光催化材料处理含偶氮染料废水，结果表明其对偶氮染料的作用既有吸附，也有降解，表明天然金红石光催化材料有一定的光催化活性。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。