光催化的

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。

Studies illustrated that though it could be decomposed under UV light by itself for about 5%, the decolouration of acid red 3B was due to the degradation of K4Nb6O17, but not to the adsorption on it. And the strong oxidic free radicals attracted the conjugated radical first.

研究表明，酸性红3B的去除主要是K_4Nb_6O_(17)对其的光催化降解，而并非吸附作用，但酸性红3B自身也存在少量的光降解，约为5％，且强氧化基团首先进攻的是共轭基团。

Photocatalytic activities of bismuth oxyhalide compounds are improved by doping and modifications. By designing of the crystal structures and energy band gaps, highly efficient photocatalysts of bismuth oxyhalide compounds can be obtained.

借助于掺杂改性，卤氧化铋的光催化性能得到进一步改善；通过晶体结构和能带结构的设计合成可以得到高活性的卤氧化铋化合物光催化剂。

By designing of the crystal structures and energy band gaps, highly efficient photocatalysts of?bismuth?oxyhalide?compounds?series?can be obtained . Finally the trend of lated research is prospected.

借助于掺杂改性，卤氧化铋的光催化性能得到进一步改善；通过晶体结构和能带结构的设计合成可以得到高活性的卤氧化铋化合物光催化剂。

Bismuth Oxyhalide Compounds, BiOX (X=Cl, Br, I) are new types of photocatalysts. They exhibit excellent photocatalytic properties due to layered crystal structure and suitable band gaps.

卤氧化铋，BiOX (X=Cl， Br， I)作为一种新型光催化剂，由于具有特殊的层状结构和合适的禁带宽度从而显示出优异的光催化性能。

Its photocatalytic behaviors for degradation of fruit green dye, alkali yellow dye and brilliant blue dye, were investigated. The effects of catalyst dosage, illumination time and presence of air on the decoloring efficiency for the three dyes were investigated.

研究了其对果绿、碱性黄和亮蓝溶液的光催化降解性能，考察了光催化剂用量、光照时间及空气的存在对三种染料降解脱色率的影响。

The samples were characterized by XRD、TEM、XPS and UV-VIS diffraction spectrum.

Ce4+掺杂TiO2纳米光催化剂的制备及反应活性研究用简单的水热方法制备了Ce4+掺杂的锐钛矿和金红石相TiO2样品，并对其光催化活性进行了考察。

In this paper, three different modified nanosized titanium dioxides were prepared, the photocatalytic activities of TiO_2 are all largely improved, so we make instructive research for the applications of TiO_2 to environmental purification and contaminations disposal.

本文通过以上三种改性方法制备了改性纳米TiO_2光催化剂，其光催化活性均有较大程度的提高，为TiO_2用于环境净化和污染物的治理进行了有益的探索。

The experiment result showed that the photocatalytic degradation reaction was high efficiency for lower concentration of methyl orange solution.

利用该系统分别对低浓度甲基橙溶液进行了间歇式和连续式操作下光催化降解的实验研究，以甲基橙溶液的脱色率和TOC降解率为指标，探讨了降解过程中反应液初始浓度、气体流量、液体流量、光催化剂用量等操作条件对降解性能的影响，并对高浓度甲基橙溶液的降解过程进行了初步研究。

The device not only has high mass transfer efficiency and high utility rate of luminous energy that are possessed by floating photocatalytic reaction devices, but also can retain the hollow glass microsphere filled with titanium dioxide in the reaction area through the quartz sand filtering layer, thereby recycling the photo-catalyst.

本装置既具有悬浮式光催化反应装置所具有的高传质效率和光能利用率，又可以通过石英砂滤层，使负载二氧化钛的空心玻璃珠停留在反应区内而不流失，实现了光催化剂的重复利用。

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！