硼掺杂TiO_2光催化剂已成为非金属掺杂材料研究的热点之一.简要介绍了B掺杂TiO_2的制备方法,集中论述了B在TiO_2晶格中的掺杂状态、形貌及其光催化活性机理.B掺杂TiO_2粉末的制备方法主要有溶胶-凝胶法、机械-化学法、离子植入法、水热合成法、电化学沉积法和气溶胶辅助流法.在掺杂状态上,B在TiO_2晶格中主要以替代O方式存在.B掺杂后,TiO_2的带隙能、晶相都发生了不同程度的变化,由此产生的Lewis酸性位点、氧空位以及电子转移方式的变化可能是导致B掺杂TiO_2光催化效率提高的原因.最后指出了B掺杂TiO_2研究中有待解决的问题.
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