矿

In addition, the effects of transition-metal-doping and mixed crystalline effect are discussed in detail. Two worthy problems which are the photocatalytic activity of brookite and the Ti-doping TiO2 are put forward.

此外，本文对混晶效应和过渡金属离子掺杂的影响也作了较详细的探讨，提出了两个值得进一步深究的问题：板钛矿型TiO2的光催化活性以及Ti4+的掺杂。

Brookite TiO〓 particles have no absorption within the UV-Vis band, they can not be used as photocatalyst.

板钛矿型二氧化钛在整个紫外可见区域没有吸收，因而不可能作为光催化剂使用。

It is easy to prepare TiO〓 nanoparticles with anatase, rutile, brookite and the mixture of anatase and rutile structures respectively through control of temperature and the ratio of /.

控制/比和反应温度可方便地制备锐钛型、金红石型、板钛矿型以及金红石型与锐钛型混合二氧化钛颗粒。

The crystalline size was estimated to be around 13.3-20 nm. Raman spectra indicated there coexisted other phases and a transformation from brookite to anatase in the samples doped with 0.2% Sb.

掺入适量的Sb后，由于Sb替代了TiO2的部分Ti形成Sb-O-Ti结构，改变了TiO2的晶格结构，改善了薄膜的结晶效率，使锐钛矿结构的TiO2：Sb含量明显提高。

Preparation of Brookite TiO_2 Micro-crystals with Single Phase;2. The brookite TiO2 with different morphologies was prepared by hydrothermal method using TiCl4 and NaOH as the starting material.

以四氯化钛和氢氧化钠为原料制备TiO2前驱体，通过水热法合成了不同形貌板钛矿相TiO2，利用X射线衍射和透射电镜对所得样品进行了表征。

When the is 0.1mol/l, ratio / is 0 or 4, aged at 95250℃ for 24 hours, anatase and rutile TiO〓 particles are formed respectively; when the ratio / is between 0 and 4, mixture of anatase and rutile TiO〓 particles is formed, the high the temperature the more the rutile phase. When the / is 5, aged at below 200℃ for 24 hours, amorphous product is gained, aged at 250℃ for 24 hours, olive-like TiO〓 particles with brookite structure are formed.

Ti〓=0.1mol·L〓时，95～250℃陈化，/比为0时，得到金红石型TiO〓颗粒，/比为4时，得到锐钛型TiO〓颗粒；/比介于0～4，可得到金红石型与锐钛型混合二氧化钛颗粒，温度越高含金红石型成分越多；/比为5，200℃以下陈化，得无定型产物，250℃陈化得橄榄形单分散板钛矿型二氧化钛。

Nutritional components of the Bulbil of Dioscorea Opposite were analyzed and evaluated. General nutrients, amino acid compositions and mineral contents were investigated.

对怀山药零余子的营养成分进行了分析和评价，主要对其一般营养成分、氨酸酸组成及矿质元素含量进行了检测和营养学评价。

The Bulbil of Dioscorea Opposite was a kind of healthy food material which can provide polysacharide, high protein, low fat and rich minerals.

因此，怀山药零余子是高蛋白、低脂肪，且富含铁、铜、锌、锰等微量矿质元素的天然理想保健食品原料。

Combining engineering exampls with coal storage bunker ,introduced slide form construction technology in detail.

结合潘二矿储煤仓工程实例，详细介绍了筒仓滑模施工技术。

In order to determine the influence of alkali metals on charge properties for new burdening,the reaction and distribution of alkali metals in Blast Furnace were presented.

为了解新配矿条件下碱金属对高炉炉料性能的影响，研究了碱金属在高炉内的反应及分配。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。