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铬掺杂钙铌酸的制备及其光催化性能

DOI: 10.11830/ISSN.1000-5013.2008.02.0256

Keywords: HCa2Nb3O10, 光催化, 掺杂, 氢气,

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Abstract:

通过高温固相反应制备铬掺杂的钙铌酸钾系列样品,并用离子交换反应制备出对应的铬掺杂钙铌酸样品.采用X-射线衍射、紫外-可见漫反射光谱、扫描电镜等方法,对所制得的样品进行表征.在甲醇为电子给体,Pt为助催化剂的情况下,研究铬掺杂的钙铌酸系列催化剂,在波长大于290 nm紫外光辐射下分解水产氢的光催化活性.结果表明,适量的掺杂铬可有效地提高钙铌酸的光催化分解水的活性.最后,讨论引起催化剂活性差异的可能原因.

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