El-Sayed Fatma, Hussien Mai S A, Mohammed Mervat I, Ganesh Vanga, AlAbdulaal Thekrayat H, Zahran Heba Y, Yahia Ibrahim S, Hegazy Hosam H, Abdel-Wahab Mohamed Sh, Shkir Mohd, Valarasu Santiyagu, Ibrahim Medhat A
Nanoscience Laboratory for Environmental and Bio-Medical Applications (NLEBA), Metallurgical Lab.1, Department of Physics, Faculty of Education, Ain Shams University, Roxy, Cairo 11757, Egypt.
Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11757, Egypt.
Nanomaterials (Basel). 2022 Mar 24;12(7):1060. doi: 10.3390/nano12071060.
The growth of the textile industry results in a massive accumulation of dyes on water. This enormous rise in pigments is the primary source of water pollution, affecting the aquatic lives and our ecosystem balance. This study aims to notify the fabrication of neodymium incorporated copper oxide (NdO doped CuO) nanoparticles by combustion method for effective degradation of dye, methylene blue (MB). X-ray diffraction (XRD), Field emission Scanning electron microscopy (FESEM), Zeta potential have been applied for characterization. Photocatalyst validity has been evaluated for methylene blue degradation (MB). Test conditions such as time of contact, HO, pH, and photo-Fenton have been modified to identify optimal degradation conditions. Noticeably, 7.5% NdO doped CuO nanoparticle demonstrated the highest photocatalytic efficiency, up to 90.8% in 80 min, with a 0.0227 min degradation rate. However, the photocatalytic efficiency at pH 10 becomes 99% with a rate constant of 0.082 min. Cyclic experiments showed the NdO doped CuO nanoparticle's stability over repeated use. Scavenge hydroxyl radical species responsible for degradation using 7.5% NdO doped CuO nanoparticles have been investigated under visible irradiation.
纺织工业的发展导致大量染料积聚在水体中。这种颜料的大量增加是水污染的主要来源，影响着水生生物和我们的生态系统平衡。本研究旨在通报通过燃烧法制备掺钕氧化铜（NdO掺杂CuO）纳米颗粒以有效降解染料亚甲基蓝（MB）。已应用X射线衍射（XRD）、场发射扫描电子显微镜（FESEM）、zeta电位进行表征。已评估光催化剂对亚甲基蓝降解（MB）的有效性。已对接触时间、羟基自由基、pH值和光芬顿等测试条件进行了调整，以确定最佳降解条件。值得注意的是，7.5%NdO掺杂的CuO纳米颗粒表现出最高的光催化效率，在80分钟内高达90.8%，降解速率为0.0227分钟。然而，在pH值为10时，光催化效率达到99%，速率常数为0.082分钟。循环实验表明NdO掺杂的CuO纳米颗粒在重复使用时具有稳定性。已研究了在可见光照射下使用7.5%NdO掺杂的CuO纳米颗粒清除负责降解的羟基自由基物种。
