AlAbdulaal Thekrayat H, Ganesh Vanga, AlShadidi Manal, Hussien Mai S A, Bouzidi Abdelfatteh, Algarni Hamed, Zahran Heba Y, Abdel-Wahab Mohamed Sh, Yahia Ibrahim S, Nasr Samia
Laboratory of Nano-Smart Materials for Science and Technology (LNSMST), Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia.
Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11757, Egypt.
Materials (Basel). 2022 May 1;15(9):3257. doi: 10.3390/ma15093257.
An efficient and environmentally friendly combustion technique was employed to produce ZnO nanopowders with different Eu concentrations (from 0.001 g to 5 g). The structural morphology of the EuO-ZnO nanocomposites was examined using XRD, SEM, and infrared spectroscopy (FT-IR). In addition, UV-Vis diffuse reflectance spectroscopy was also used to investigate the effects of europium (Eu) dopant on the optical behaviors and energy bandgaps of nano-complex oxides. The photocatalytic degradation efficiency of phenol and methylene blue was investigated using all the prepared EuO-ZnO nanostructured samples. Photocatalytic effectiveness increased when europium (Eu) doping ratios increased. After adding moderate Eu, more hydroxyl radicals were generated over ZnO. The best photocatalyst for phenol degradation was 1 percent EuO-ZnO, while it was 0.5 percent EuO-ZnO for methylene blue solutions. The obtained EuO-doped ZnO nanostructured materials are considered innovative, promising candidates for a wide range of nano-applications, including biomedical and photocatalytic degradation of organic dyes and phenol.
采用一种高效且环保的燃烧技术制备了具有不同铕（Eu）浓度（从0.001克到5克）的氧化锌纳米粉末。使用X射线衍射（XRD）、扫描电子显微镜（SEM）和红外光谱（FT-IR）对氧化铕-氧化锌纳米复合材料的结构形态进行了研究。此外，还使用紫外-可见漫反射光谱研究了铕（Eu）掺杂剂对纳米复合氧化物光学行为和能带隙的影响。使用所有制备的氧化铕-氧化锌纳米结构样品研究了苯酚和亚甲基蓝的光催化降解效率。随着铕（Eu）掺杂比例的增加，光催化效率提高。添加适量的铕后，氧化锌表面产生了更多的羟基自由基。用于苯酚降解的最佳光催化剂是1%的氧化铕-氧化锌，而用于亚甲基蓝溶液的是0.5%的氧化铕-氧化锌。所获得的掺杂氧化铕的氧化锌纳米结构材料被认为是创新的、有前途的候选材料，可用于广泛的纳米应用，包括生物医学以及有机染料和苯酚的光催化降解。
