水热合成镍掺杂钛酸钡及应用研究

Hydrothermal Synthesis of Nickel Doped Barium Titanate and its Application

钛酸钡作为典型的铁电材料,在光催化剂降解水中有害物领域有较大的应用潜力。本课题以镍掺杂钛酸钡为研究体系,探究镍掺杂对光催化性能的影响。实验结果表明,以钛酸四丁酯为钛源,氯化钡为钡源,钡镍比7∶3、加入12 mL NaOH和4 mL乙醇,反应24 h为最优条件,其光催化降解率为88.84%。并通过XRD、固体荧光、紫外可见漫反射谱图,分析镍掺杂钛酸钡光催化性能的原理。

As a typical ferroelectric material,barium titanate has great potential applications in the field of photocatalytic degradation of harmful substances in water.In this paper,the effect of nickel doping on the photocatalytic performance of barium titanate was investigated.The experimental results showed that,under the scenario of using tetrabutyl titanate as titanium source and barium chloride as barium source,the optimum conditions are barium nickel ratio of 7∶3,and adding 12 mL NaOH and 4 mL ethanol.Under reacting for 24 hours,the photocatalytic degradation ratio reached 88.84%.Also,the mechanisms of nickel doped barium titanate photocatalysis were analyzed by XRD,solid fluorescence and UV visible diffuse reflectance spectra.