The COVID 19 pandemic has demonstrated the need for urgent access to measures to contain the spread of the virus and bacteria. In this frame, the use of photocatalytic nanomaterials can be a valuable alternative to chemical disinfectants without the limitation of generating polluting by-products and with the advantage of re-usability in time. Here, on the basis of up-to-date literature reports, the use of TiO₂-based photocatalytic nanomaterials in disinfection will be overviewed, considering the peculiar nanocatalysts assisted inactivation mechanisms. The potential of this class of photocatalysts for air, surface and water disinfection will be highlighted, critically revising the recent achievements in view of their potential in real application.

COVID 19 大流行表明迫切需要采取措施来遏制病毒和细菌的传播。在此框架下，光催化纳米材料的使用可以成为化学消毒剂的有价值的替代品，而不会产生污染性副产品，并且具有及时重复使用的优点。在此，根据最新文献报道，考虑到纳米催化剂特有的辅助灭活机制，对TiO ₂基光催化纳米材料在消毒中的应用进行概述。此类光催化剂在空气、表面和水消毒方面的潜力将得到强调，并根据其在实际应用中的潜力对最近取得的成就进行批判性修改。