Querebillo Christine Joy
Leibniz-Institute for Solid State and Materials Research (IFW) Dresden, Helmholtzstr. 20, 01069 Dresden, Germany.
Nanomaterials (Basel). 2023 Mar 8;13(6):982. doi: 10.3390/nano13060982.
Catalysis on TiO nanomaterials in the presence of HO and oxygen plays a crucial role in the advancement of many different fields, such as clean energy technologies, catalysis, disinfection, and bioimplants. Photocatalysis on TiO nanomaterials is well-established and has advanced in the last decades in terms of the understanding of its underlying principles and improvement of its efficiency. Meanwhile, the increasing complexity of modern scientific challenges in disinfection and bioimplants requires a profound mechanistic understanding of both residual and dark catalysis. Here, an overview of the progress made in TiO catalysis is given both in the presence and absence of light. It begins with the mechanisms involving reactive oxygen species (ROS) in TiO photocatalysis. This is followed by improvements in their photocatalytic efficiency due to their nanomorphology and states by enhancing charge separation and increasing light harvesting. A subsection on black TiO nanomaterials and their interesting properties and physics is also included. Progress in residual catalysis and dark catalysis on TiO are then presented. Safety, microbicidal effect, and studies on Ti-oxides for bioimplants are also presented. Finally, conclusions and future perspectives in light of disinfection and bioimplant application are given.
在过氧化氢和氧气存在的情况下，二氧化钛纳米材料上的催化作用在许多不同领域的发展中起着至关重要的作用，例如清洁能源技术、催化、消毒和生物植入物。二氧化钛纳米材料上的光催化作用已得到充分确立，并且在过去几十年里，在对其基本原理的理解和效率的提高方面都取得了进展。与此同时，现代消毒和生物植入物科学挑战的日益复杂性需要对残余催化和暗催化有深入的机理理解。在此，本文概述了二氧化钛催化在有光和无光情况下所取得的进展。首先介绍了二氧化钛光催化中涉及活性氧（ROS）的机理。接着阐述了由于纳米形态和状态通过增强电荷分离和增加光捕获而提高其光催化效率的情况。还包括了关于黑色二氧化钛纳米材料及其有趣性质和物理特性的一个小节。然后介绍了二氧化钛在残余催化和暗催化方面的进展。还介绍了安全性、杀菌效果以及用于生物植入物的钛氧化物的研究。最后，给出了针对消毒和生物植入物应用的结论和未来展望。
