photodegradation

Frontier molecular orbital study on photodegradation mechanism of cyanine dyes

菁染料光解机理的前线分子轨道研究

The photodegradation efficiency decreases with increasing the initial concentration of E1.

在2~10mg/L范围内，光降解效率随水溶液中E1初始浓度的增加而降低。

A Study of the Photodegradation of Degradable Polypropylene Film with Infrared Spectrometry

红外光谱法研究降解聚丙烯薄膜的光降解性

The effect of the ultraviolet-visible light transmittance, doping amount of thorium dioxide and neodymium sesquioxide, pH value of the aqueous solution of sodium dodecyl benzenesulfonate and some other factors on the photodegradation rate were studied.

研究了复合膜的紫外-可见光透过性能和二氧化钍与三氧化二钕的掺杂量、十二烷基苯磺酸钠水溶液的pH值等因素对光解率的影响。

Objective : To study the photodegradation mechanism of Fleroxacin solution.

目的: 研究氟罗沙星溶液光降解反应机理.

Biodegradation and photodegradation of surfactants are now arousing more and more interest.

表面活性剂的生物降解和光降解技术正受到越来越多的关注.

The Photodegradation of Chlorinated Organic Compounds in Water by TiO_2& Fenton Systems

TiO2-Fenton试剂光氧化降解水中氯代有机物的研究

Photodegradation of reactive orange with hydrogen peroxide was investigated. An orthogonal method was employed to evaluate the effects of hydrogen peroxide concentrations, initial pH value and irradiation time on decolorization efficiency.

通过正交法设计试验，研究了过氧化氢对活性艳橙溶液光催化脱色的影响因素，并对溶液中初始过氧化氢浓度，初始pH值，光解时间对活性艳橙溶液脱色率影响进行了详细研究。

Purposes: Manufacturing hydrogen peroxide, dye intermediates, light-cured resin catalyst, photodegradation membrane, coatings and photosensitive polymerization initiator.

用途: 制造双氧水 、 染料中间体 、 光固化树脂催化剂 、 光降解膜, 涂料和光敏聚合引发剂.

The photodegradation process could be well described by a four-parameter biphasic first-order reaction kinetic model, and showed obvious rapid and slow photodegradation phases, the latter was the rate determining step.

4参数2室一级反应动力学模型可以很好地描述同时洗脱和光催化降解土壤中硫丹的过程，包括快速光降解和慢速光降解两个阶段，后者是整个降解过程的速度控制步骤。

The photocatalytic efficiency of titania ceramics was evaluated by the photodegradation of methyl orange under high pressure mercury lamp irradiation.

以甲基橙为模型化合物，通过它在高压汞灯下的脱色评价氧化钛催化剂的光效率。

The TiO2/ ACF catalysts were characterized by BET, XRD, and SEM. The photodegradation activity of TiO2/ ACF was investigated using tetrachloroethylene ( TCE) as a probe molecule.

采用BET、XRD、SEM等手段对其物理化学特性进行表征，以四氯乙烯光降解反应为探针反应，考察了TiO2/ACF催化剂的光催化降解性能。

The results indicated that NPX could be degraded effectively under simulated sunlight and UV irradiation, and the process of NPX photodegradation could be fitted by the pseudo first-order kinetics model.

结果表明，萘普生在模拟太阳光及紫外光照射下均能有效被降解，且其降解过程符合伪一级动力学方程。

The photodegradation of paracetamol in nitrate solutions in the range of environmental concentration was studied using mercury lamp with middle pressure as simulated solar source.

以中压汞灯为光源模拟阳光，研究了环境浓度范围内的硝酸根溶液中扑热息痛（paracetamol）的光解；

The photodegradation and mineralization were confirmed by 721-spectrophotometer and COD measurements.

通过721型分光光度计和COD考察苯酚光催化降解和矿化程度。

A500W medium pressure mercury lamp was applied in the research work of the photodegradation of polychlorinated dibenzo-p-dioxins in the dry soil.

本文利用500W中压汞灯研究了二（口恶）（口英）在干燥土壤中的紫外光解。

It could be concluded that in the course of photodegradation of EE_ ( 2), C3 or C10 atoms should be the sites at which is subject to the electron attack and oxidization of EE_2 into carbonyl or hydroxyl compounds.

对EE2的降解机理进行了探讨，认为EE2在光降解过程中，分子中的C3和C10原子容易受到电子的攻击，氧化生成羰基或羟基化合物。

Influences of pH, concentrations of oxidents and Cu 2 + on the photodegradation rate of DDVP were investigated.

探讨了氧化剂浓度、pH值 、 Cu2+浓度对DDVP光降解的影响.

Primarily Probing into Photodegradation Mechanism of Mulberry Silk

桑蚕丝光降解机理初探

Photodegradation of Hydrocarbons Catalyzed by TiO_2 in Aqueous Suspension

TiO2粉末的悬浮体系石油烃类化合物光催化降解

The result showed that after be treated by two-level of biochemistry processing, photodegradation and ozone oxidation treatment, the COD toxicity and genotoxicity of the coking wastewater reduced gradually.

结果表明，焦化废水经二级生化处理和光降解、臭氧氧化深度处理可使其COD及其遗传毒性逐级降低。

Initial concentration: Under the irradiation of high pressure mercury lamp, the photodegradation rate of triazophos decreased with the increasing initial concentration.

初始浓度：高压汞灯下，在DW、ASW、NSW中，三唑磷的光解速率与其初始浓度呈负相关关系。

The photodegradation experiment showed that the introduction of electron withdrawing group on methane chain would improve the photo-stability of the dye, while electron donating group would decrease the photo-stability.

三种染料与其母核染料的光降解对比试验说明，甲川链上引入吸电子基团使得染料光稳定性提高，而供电子基团则光稳定性下降。

Photodegradation of dimethyl phthalate in water using TiO_2/ pumice

TiO2/浮石光催化降解水中邻苯二甲酸二甲酯

Study on the Phototoxicity, Photodegradation and Application of Xanthene Derivatives

呫吨类化合物的光敏生物活性、光降解及应用研究

The photodegradation of the acid fuchsin wastewater using the heteropoly acid was studied.

以杂多酸为催化剂,研究了酸性品红染料废水的光催化降解特性和工艺.