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通过高温固相反应合成了钼掺杂的铌镧酸钾系列,并通过离子交换反应制备出钼掺杂的铌镧酸系列;采用X-射线衍射、紫外可见漫反射光谱、原子吸收光谱、比表面积测定等对所制得的样品进行了表征。在甲醇为给电子体,铂为助催化剂的条件下,用波长>290nm的100W汞灯辐照时,钼掺杂的铌镧酸系列表现出了分解水产生氢气的光催化活性,当掺杂浓度为Mo/Nb=2.5mol%时,其产氢速率达到最大值。
The series of molybdenum-doped niobium lanthanum potassium phosphates were synthesized by high-temperature solid-state reaction and the molybdenum-doped niobium lanthanum series were prepared by ion exchange reaction. The effects of XRD, UV-Vis diffuse reflectance spectroscopy, The surface area of the sample was prepared for the characterization. In the case of methanol as electron donor and platinum as cocatalyst, the molybdenum-doped niobium lanthanate series exhibited a photocatalytic activity for decomposing water to produce hydrogen when irradiated with a 100W mercury lamp having a wavelength of> 290 nm. When doped The concentration of Mo / Nb = 2.5mol%, the maximum rate of hydrogen production.