查询词典 photocatalytic

The results showed that the degrdation rate of fluorobenzene by TiO2/SnO2 coating rosed from 71.9% to 90.1% compared with pure TiO2 coating. The apparent rate constant k of the photocatalytic degradation is related to the initial concentration of fluorobenzene and the reaction order is zero. The corresponding degradation rate of aldehyde with the concentration of 100ppm rosed from 69.2% to 91.4% and the reaction order is one.

结果表明：与未改性涂料相比，SnO2改性涂料的活性对氟苯的降解率由71.9％提高到90.1％，反应表观速率常数与降解液初始浓度有关，光催化降解氟苯属于零级反应；对100ppm乙醛的降解率由69.2％提高到91.4％，光催化降解乙醛属于一级反应。

The photocatalytic degradation rate of heptene increased with increasing the initial concentration of sulfur dioxide, but maintained almost a constant beyond a certain concentration.

同时研究了庚烯和二氧化硫的初始浓度、氧气和水蒸气的不同含量及光强等因素对其光催化氧化降解的影响。

When the concentration of sulfur dioxide was fixed, the reaction rate increased separately with increasing oxygen content and water vapor content, when oxygen content was 20%, the reaction rate was the highest, while water vapor content was 444μmol/L, there was an optimum value for the photocatalytic degradation rate of heptene.

庚烯的降解速率随着二氧化硫浓度的增加而增加，最终趋于稳定。在二氧化硫浓度一定时，庚烯的反应速率分别随着氧气和水分子含量的增加而不断增大，氧含量为20%时速率最大；水分子含量为444μmol/L时速率最大。

When doping the first periodic transition elements in TiO〓, the relationships between the photocatalytic activities and the ratio of electronic affinity energy to the ionic radius and the ionic magnetic moment of heteratomic ion were studied.

通过第一过渡系元素对纳米TiO〓光催化剂的掺杂，发现催化活性与掺杂元素的稳定氧化态的电子亲和势Ea与离子半径r的比值Ea/r有顺应关系，该比值越大，催化活性越低。

MIPC was photocatalytically transformed to 3,4-dihydroxyl hypnone, 2-iso-butyl phenol and acetic acid, and mineralized ultimately in oxygenated TiO2 slurries. The photocatalytic degradation processed according to first order kinetics with the apparent rate constant depending on initial concentration, light intensity and the amount of catalyst. The amount of catalyst had an optimum value (0.5g/L). The apparent rate was inversely proportional to square root of the initial concentration approximately.

MIPC能被光催化转化成3，4-二羟基苯乙酮、2-异丁基苯酚和乙酸等产物并最终被矿化，MIPC的光催化反应过程符合一级动力学规律，其表观速率常数与MIPC的起始浓度、TiO2量和光强等因素有关，MIPC降解的反应速率与入射光强成正比，与MIPC初始浓度的平方根成反比。

The pollutants can be entirely broken down to innoxious matters by photocatalytic degradation which can be finished at normal temperature and pressure in short times, so photocatalysis method has become one of the most effective method to degrade vary kinds of polluters.

由于光催化法可在常温常压下短时间内将污染物完全降解至无毒的物质，因而该法将成为处理各类污染物废水最为有效的方法之一。

Using ultraviolet lamp as light source, the photocatalytic activity of photo-assisted mesoporous TiO_2 katalyst was studied by photodegradation of Rhodamine B.

以紫外灯为光源，通过对水溶性染料罗丹明B的光降解反应，考察了光助中孔TiO催化剂的光催化活性。

In this paper, the main content as follows:(1)Using methyl orange as a model pollutant, the influence of the presence of four kinds of manganese oxides (δ-MnO_2,α-MnO_2,γ-MnOOH and natural manganic ore) on photocatalytic activity of TiO_2 has been investigated.

本论文的主要内容为：(1)以甲基橙为模拟污染物，考察四种氧化锰：δ-MnO_2、α-MnO_2、γ-MnOOH和天然锰矿的共存对TiO_2光催化活性的影响。

Mechanistically, the photocatalytic processes are based on the electron transfer from a excited dyes to the conduction band of TiO〓 semiconductor and subsequent some reactions such as the further reaction of injected electrons with adsorbed oxygen and complicated decomposition processes of dye cationic radicals to lead to dye degradation or mineralization, which offers a feasibility of utilizing inexpensive visible light or most part of solar spectra to treat dye pollutants.

其光催化过程的机理为：染料在可见光下被激发，电子从激发态染料传输到TiO〓半导体的导带，随后发生一系列的反应，如注入的电子与吸附的氧反应以及染料正碳自由基复杂的分解反应导致了染料的降解和矿化，这就为利用廉价的可见光或太阳光中的大部分可见光谱来处理染料污染物提供了可能。

BiVO_4 nano-film was fabricated by modified metalorganic decomposition technique and the photocatalytic activity of these photocatalysts was evaluated.

本研究采用改进的金属有机物分解法制备了BiVO_4纳米膜，将其应用于可见光光电催化降解环境污染物的研究中，并通过对其改性提高了其光电催化降解污染物的能力。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！