通过控制煅烧TiN纳米粉体的温度和时间制备氮掺杂纳米TiO2.利用原位升温X射线衍射(XRD)分析了TiN粉末随温度改变而发生的物相变化过程,并结合常规XRD粉末衍射、X射线光电子能谱(XPS)及紫外-可见漫反射吸收光谱等手段对样品物相、组成以及可见光吸收性能进行测试表征.同时,探究了TiN热处理温度及热处理时间对样品吸收带边的影响.样品的紫外-可见漫反射吸收光谱测试结果表明,氮掺杂TiO2显著提高了TiO2的可见光响应,并使其吸收带边发生明显的红移.TiN在500℃热处理60 min制得的N-TiO2纳米粉体的紫外-可见光响应能力最强.
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