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首页> 外文期刊>Crystal growth & design >Turning Bulk Titanium into Rutile Nanorods in One Step: Synthesis, Mechanism, and Application
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Turning Bulk Titanium into Rutile Nanorods in One Step: Synthesis, Mechanism, and Application

机译：一步将块状钛变成金红石型纳米棒：合成，机理和应用

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A one-step method is introduced for synthesizing rutile TiO2 nanorods (TNRs) directly from Ti metal. TNRs are generated by hydrothermally processing a Ti metal disc in H2SO4/CuSO4 solutions at 150 degrees C. In a 112-day long experiment, different ledgewise growth mechanisms are observed in the early (7-day) and the late (112-day) stages of TNR formation. A unique phenomenon is observed in that the length of the TNRs is a function of processing time and the H2SO4/CuSO4 concentration, whereas the diameter of the TNRs is almost unaffected. It is found that the diameter of these nanorods can only be affected by variation of temperature. A mechanism involving the critical dimension of the (101) growth front is proposed in this paper. In addition, methyl orange degradation efficiency of 90% was achieved when the fabricated TNRs were used as immobilized photocatalysts.
机译：引入了一步法直接从钛金属合成金红石型TiO2纳米棒（TNR）。通过在150摄氏度的H2SO4 / CuSO4溶液中对Ti金属圆盘进行水热处理来生成TNR。在长达112天的实验中，在早期（7天）和晚期（112天）观察到不同的壁架生长机制。 TNR形成的各个阶段。观察到一个独特的现象，即TNR的长度是处理时间和H2SO4 / CuSO4浓度的函数，而TNR的直径几乎不受影响。发现这些纳米棒的直径仅受温度变化的影响。本文提出了一种涉及（101）生长前沿临界尺寸的机制。另外，当将制备的TNRs用作固定化光催化剂时，甲基橙的降解效率达到了90％。

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