使用 APTES 修饰的 TiO 光催化灭活和共培养物。

Photocatalytic Inactivation of Co-Culture of and Using APTES-Modified TiO.

机构信息

Department of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, Poland.

Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.

出版信息

Molecules. 2023 Feb 9;28(4):1655. doi: 10.3390/molecules28041655.

DOI:10.3390/molecules28041655

PMID:36838643

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9965180/

Abstract

The presented work shows the antibacterial activity of TiO photocatalysts modified by 3-aminopropyltriethoxysilane (APTES). The APTES-functionalized TiO samples were obtained by the solvothermal process followed by calcination. The antibacterial activity of APTES/TiO samples was evaluated with two species of bacteria, and , under artificial solar light (ASL) irradiation. The used bacteria are model organisms characterized by negative zeta potential (approx. -44.2 mV for and -42.3 mV for ). For the first time, the antibacterial properties of APTES-functionalized TiO were evaluated against mono- and co-cultured bacteria. The high antibacterial properties characterized the obtained APTES-modified nanomaterials. The best antibacterial properties were presented in the TiO-4 h-120 °C-300 mM-Ar-300 °C sample (modified with 300 mM of APTES and calcined at 300 °C). The improvement of the antibacterial properties was attributed to a positive value of zeta potential, high surface area, and porous volume.

摘要

本工作展示了经 3-氨丙基三乙氧基硅烷 (APTES) 改性的 TiO 光催化剂的抗菌活性。APTES 功能化 TiO 样品通过溶剂热法制备，然后煅烧得到。在人工太阳光照 (ASL) 下，采用两种细菌和对 APTES/TiO 样品的抗菌活性进行了评估。所使用的细菌是具有负 zeta 电位（约-44.2 mV 和-42.3 mV ）的模式生物。首次评估了 APTES 功能化 TiO 对单种和共培养细菌的抗菌性能。所获得的 APTES 修饰纳米材料具有很高的抗菌性能。在 TiO-4 h-120°C-300 mM-Ar-300°C-300 mM-Ar-300°C 样品（用 300 mM APTES 修饰并在 300°C 下煅烧）中表现出最好的抗菌性能。抗菌性能的提高归因于正 zeta 电位、高表面积和多孔体积。