S. S. Kammar, V. K. Barote, A. A. Gaikwad, Sagar E. Shirsath, A. A. Ibrahim, K. M. Batoo, R. H. Kadam, S. S. More
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引用次数: 0
Abstract
This research paper delves into the enhancement of wastewater treatment through the design and synthesis of advanced photocatalytic materials, focusing on the effects of sodium (Na) substitution in Ca1-xNaxTa0.5Ti0.5O3 perovskites. By employing various analytical techniques such as X-ray diffraction, Field Emission Scanning Electron Microscopy, Transmission Electron Microscopy and UV-vis spectroscopy, the study examines the transition of these perovskites from tetragonal to orthorhombic structures and observes a reduction in Ca content with Na substitution, which also favors the cubic phase formation and inhibits secondary phases. Significantly, magnetic property analysis uncovers an unexpected ferromagnetic ordering in these perovskites, including compositions traditionally viewed as non-magnetic. The photocatalytic tests reveal a significant improvement in degrading Rhodamine B dye under visible light, particularly in samples with higher Na levels, attributed to enhanced light absorption and efficient electron processes. The study highlights the optimal Na substitution level for peak photocatalytic performance, offering valuable insights into the complex interplay between structural, magnetic, and photocatalytic properties of these perovskites, and their potential in various applications, thereby contributing to the advancement of wastewater treatment technologies.
Na 取代在 Ca1-xNaxTi0.5Ta0.5O3 珍珠岩纳米粒子的磁性相互作用和光催化特性中的相互作用
本研究论文通过设计和合成先进的光催化材料,深入探讨了如何提高废水处理能力,重点关注钠(Na)在 Ca1-xNaxTa0.5Ti0.5O3 包晶中的替代效应。通过采用 X 射线衍射、场发射扫描电子显微镜、透射电子显微镜和紫外-可见光谱等各种分析技术,该研究考察了这些包晶石从四方结构向正方结构的转变,并观察到随着 Na 的替代,钙含量降低,这也有利于立方相的形成,并抑制了次生相的形成。值得注意的是,磁性能分析在这些包晶中发现了意想不到的铁磁有序性,包括传统上被视为非磁性的成分。光催化测试表明,在可见光下降解罗丹明 B 染料的效果显著提高,特别是在 Na 含量较高的样品中,这归因于光吸收的增强和电子过程的高效。该研究强调了达到光催化性能峰值的最佳 Na 替代水平,为了解这些过氧化物晶石的结构、磁性和光催化特性之间的复杂相互作用及其在各种应用中的潜力提供了宝贵的见解,从而有助于推动废水处理技术的发展。
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