%0 Journal Article
%T Co<sup>2+</sup>掺杂Zn<sub>0.5</sub>Cd<sub>0.5</sub>S固溶体的制备及其光催化CO<sub>2</sub>还原性能研究<br>Synthesis and Photocatalytic CO<sub>2</sub> Reduction Performance of Co<sup>2+</sup> Doped Zn<sub>0.5</sub>Cd<sub>0.5</sub>S Solid Solution
%A 李安
%A 臧创奇
%A 臧琰
%J Material Sciences
%P 360-366
%@ 2160-7621
%D 2021
%I Hans Publishing
%R 10.12677/MS.2021.114043
%X 通过水热法制备了Zn<sub>0.5</sub>Cd<sub>0.5</sub>S固溶体和掺杂Co<sup>2+</sup>分别为0.5%、1%和2% (摩尔百分比)的Zn<sub>0.5</sub>Cd<sub>0.5</sub>S/Co掺杂型光催化剂。采用了X射线衍射(XRD)、扫描电子显微镜(SEM)、紫外–可见光分光光度计(UV-vis)和光致发光(PL)对材料进行了表征，并测试了可见光下光催化CO<sub>2</sub>还原活性。结果表明：Co<sup>2+</sup>掺杂后的催化剂结构与形貌没有发生显著变化，但是能带结构发生了明显调整；其中Zn<sub>0.5</sub>Cd<sub>0.5</sub>S/Co-1%催化剂在K<sub>2</sub>SO<sub>3</sub>/KHCO<sub>3</sub>液相体系，可见光辐射(λ &gt; 420 nm)下CO<sub>2</sub>还原活性明显优于初始Zn<sub>0.5</sub>Cd<sub>0.5</sub>S材料。为高效光催化剂的构建提供了一种简易的方法。<br />
Zn<sub>0.5</sub>Cd<sub>0.5</sub>S solid solution and Co<sup>2+</sup> doped Zn<sub>0.5</sub>Cd<sub>0.5</sub>S photocatalysts were successfully synthesized by hydrothermal method. The concentrations of Co<sup>2+</sup> are 0.5 mol%, 1 mol% and 2 mol%, respectively. X-ray diffraction (XRD), scanning electron microscope (SEM), ultraviolet-visible spectrophotometer (UV-vis) and photoluminescence (PL) were used to characterize, and the photocatalytic CO<sub>2</sub> reduction performance was measured under visible light. The results showed that the structure and morphology of Zn<sub>0.5</sub>Cd<sub>0.5</sub>S/Co did not change significantly, but the energy band structure was remarkably adjusted. Under the K<sub>2</sub>SO<sub>3</sub>/KHCO<sub>3</sub> liquid system and visible light radiation (λ &gt; 420 nm), the Zn<sub>0.5</sub>Cd<sub>0.5</sub>S/Co-1 sample presented better CO<sub>2</sub> reduction performance than the pristine Zn<sub>0.5</sub>Cd<sub>0.5</sub>S. It provides a simple method for the construction of high-efficiency photocatalytic systems.
%K 光催化剂，CO<sub>2</sub>还原反应，Co<sup>2+</sup>掺杂，Zn<sub>0.5</sub>Cd<sub>0.5</sub>S固溶体，可见光<br>Photocatalyst
%K CO<sub>2</sub> Reduction Reaction
%K Co<sup>2+</sup> Doping
%K Zn<sub>0.5</sub>Cd<sub>0.5</sub>S Solid Solution
%K Visible Light
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=41624