In this study, an effective photodegrading properties of WO₃ nanoparticles has been enhanced by doping with cerium. To achieve our goal pristine and Ce‐doped WO₃ nanoparticles were prepared by a simple and cost effective co‐precipitation route. Characterization of all the specimens were conducted which showed that there were no noticeable structural changes. WO₃ retained its monoclinic structure even after doping with (3%, 5%, 8%, 10%) cerium which was also confirmed with X‐ray diffraction (XRD) and Raman spectroscopy. In addition, XRD and Fourier transform infra‐red spectroscopy also confirm that no new phases were formed in doped specimens. XRD also depicts that minimum crystallite size is achieved at 3% cerium doping. Scanning electron microscope images show decrease in particle size initially at 3% cerium doping, that is, ~80 ± 2.5 nm. In contrast, further increase in doping percentage increases crystallite and particle sizes. Additionally, defect generation increased at lower doping percentage ~3%. In contrast, further increase in dopant (5%, 8%, 10%) caused defect annihilation process to dominate over defect generation. C/C_o ratio and rate constant (K_MB) values suggest that maximum degradation of methylene blue will occur at 3% cerium doping due to increase in crystalline defects. Ultraviolet visible Spectroscopy further validates C/C_o ratio and degradation rate constant values by showing drastic decline in peak intensity at 3% cerium doping. Therefore, 3% cerium‐doped WO₃ is more effective photocatalyst to degrade methylene blue in comparison to most of the previously used photocatalysts. The prepared cerium‐doped WO₃ nanoparticles as a sun light driven photocatalyst, may be utilized for industrial wastewater purification.

中文翻译：

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原始和铈掺杂的WO3纳米粒子的合成，表征和性能评估，可通过太阳光降解亚甲基蓝

在这项研究中，通过掺杂铈增强了WO ₃纳米颗粒的有效光降解性能。为了实现我们的目标，通过一种简单且经济高效的共沉淀途径制备了原始的和Ce掺杂的WO ₃纳米颗粒。对所有样品进行表征，结果表明没有明显的结构变化。WO ₃即使掺杂了（3％，5％，8％，10％）铈，它也保持了单斜晶结构，这也通过X射线衍射（XRD）和拉曼光谱法得到了证实。此外，XRD和傅立叶变换红外光谱也证实了掺杂样品中没有新相形成。XRD还描述了在3％的铈掺杂下可以达到最小的微晶尺寸。扫描电子显微镜图像显示，最初掺杂3％的铈时粒径减小，即〜80±2.5 nm。相反，掺杂百分比的进一步增加增加了微晶和粒径。另外，在较低的掺杂百分比〜3％时，缺陷的产生增加了。相反，掺杂剂的进一步增加（5％，8％，10％）导致缺陷an没过程在缺陷产生中占主导地位。C / C _o比和速率常数（K _MB值表明，由于晶体缺陷的增加，在3％的铈掺杂下，亚甲基蓝的最大降解将发生。紫外可见光谱通过显示铈掺杂3％时峰强度急剧下降，进一步验证了C / C _o比和降解速率常数值。因此，与大多数以前使用的光催化剂相比，掺铈3％的WO ₃是更有效的降解亚甲基蓝的光催化剂。制备的掺铈的WO ₃纳米颗粒作为阳光驱动的光催化剂，可用于工业废水净化。