催化的

But doping TiO2 with Fe3+ can decrease the photocatalytic activity of catalyst tempestuously.

Fe~(3+)的掺入对TiO_2光催化活性的影响较大，使TiO_2在降解甲基橙的实验中几乎没有催化活性。

Hydration reaction experiment of turpentine catalyzed by ZrO2/SO4-was conducted to study the catalytic function of ZrO2/SO4-and explore the optimum process conditions for synthesizing α-Terpineol.

通过用固体超强酸Zr02/SO4-为催化剂催化松节油水合反应的实验，从中考察了此固体催化剂的催化性能，研究了合成α-松油醇的最佳工艺条件。

The oligomerization of isoprene with titanium tetrachloride as catalyst and alkylaluminium chlorides as promotor was studied, and especially the effects of the reaction conditions on the synthetic activity and selectivity of dimer and trimer were investigated in detail.

研究了以四氯化钛为主催化剂，以烷基铝为助催化剂催化异戊二烯的低聚反应，详细考察了各种反应条件对催化合成二聚体及三聚体的活性和选择性的影响。

Macroporous tributyl amine aminating strongly basic anion exchange resin-a phase transfer catalyst with high catalytic activity for nucleophilic substitution,which was screened out via combinatorial chemistry method –was used to catalyze the nucleophilic substitution reactions for synthesis of benzyl acetate,benzyl propionate,benzyl butyrate and benzyl valerate.

用组合化学方法筛选出的对无外加碱条件下的亲核取代催化活性最高的聚合物季铵盐–三丁胺胺化强碱性阴离子交换树脂为相转移催化剂，催化合成了乙酸苄酯、丙酸苄酯、丁酸苄酯、戊酸苄酯等羧酸苄酯。

A new catalytic spectrophotometric method for the determinati-on of trace copper is described. This method is based on the oxidation of Phloxine by hydrogen peroxide in ammoniacal medium, catalyzed by copp-er.

本文提出了催化光度法测定痕量铜的新方法，此法是基于萤光桃红在氨性介质中被H_2O_2氧化的反应受到痕量Cu的催化。

Using Fe2(SO4)3 and Ti(SO4)2 as raw materials, Nano- Fe2O3-TiO2 photocatalyst was prepared by an ethyl-assisted hydrothermal method at low temperature to degrade auramine in the three-phase photocatalytic reactor.

用该催化剂在自制的三相光催化反应器中进行催化降解碱性嫩黄的试验，探讨了催化剂投加量、溶液pH值、溶液浓度对降解率的影响。

The invention discloses a method for preparing novel nanometer TiO2 optical catalyst material, comprising that (1) preparing gel solution of modified lanthanide series that mixing butyl titanate, alcohol solvent, azotic acid, polyvinyl alcohol and lanthanide element,(2) using alkali liquid to treat the quartz fiber leaked from side wall,(3) using drawing membrane and high-temperature sintering to form modified TiO2 optical catalyst material on the surface of quartz fiber.

本发明公开了一种制备新型纳米TiO2光催化材料的方法，包括(1)配置镧系元素改性的溶胶溶液：将钛酸四丁酯、醇类溶剂、硝酸、聚乙烯醇和镧系元素的盐类混合搅拌；(2)利用碱液对侧壁漏光石英光纤进行处理；(3)通过提拉成膜和高温煅烧，在石英光纤表面形成改性TiO2光催化材料。

Fu Xiangkai Carbonylation reaction in biphase system is the important atomic economicreaction in the field of green chemistry.

含膦酸根等水溶性膦配体及其钯配合物的合成、表征和催化羰基化反应两相催化体系的羰基化反应是一类重要的绿色化学&原子经济型&反应。

The results show that in the presence of NaHCO3 as base and DMF-H2O (volume ratio 2∶1) as solvent, the complex could catalyze not only iodobenzene but also non-activated bromobenzene quantitatively at 90 ℃ without the inert gas protection, and furthermore the catalyst could be recovered and reused more than eight times.

结果表明，在没有惰性气体保护的情况下，以NaHCO3作碱，以DMF水溶液(体积比为2∶1)作溶剂，在90 ℃时，该配合物不仅对活性较高的碘代苯能够定量地催化，对未活化的溴代苯也能定量地催化，并且催化剂能够回收再利用8次以上。

The method is based on the cobalt catalyzing oxidation of bromocresol purple by hydrogen peroxide in the media of ammonia water using potassium chloride as an activator.

研究了在氨水溶液介质中，以氯化钾溶液为活化剂，痕量钴离子催化过氧化氢氧化溴甲酚紫褪色的指示反应，通过测量590 nm处溶液吸光度的改变，建立了催化动力学光度法测定痕量钴的新方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。