用于从水中去除染料和细菌的 Ag 纳米团簇修饰的非烧结二氧化硅陶瓷状纳米片的制备。

Preparation of Ag Nanoclusters-Modified Non-Sintered Silica Ceramic-Like Nanosheet for Removing Dyes and Bacteria from Water.

机构信息

Jinzhou Medical University, Jinzhou, 121001, Liaoning, People's Republic of China.

University of Jinan, Jinan, 250022, Shandong, People's Republic of China.

出版信息

Int J Nanomedicine. 2021 Feb 9;16:895-904. doi: 10.2147/IJN.S286406. eCollection 2021.

PURPOSE

Worldwide water contamination treatment and water security are essential for all living organisms. Among various water contaminants, dye, and bacteria pollution needs to be solved urgently.

METHODS AND RESULTS

In this work, a ceramic sheet from monodisperse, porous silica nanospheres (SiO NSs) with an average diameter of 220 was prepared. The prepared SiO ceramic sheets were investigated as a "filtration" material in removing dyes (alcian blue, AB; and methylene blue, MB) and bacteria (). The obtained sheets had efficient adsorption efficiency of 98.72% (for AB) and 97.35% (for MB), and a high adsorption capacity for AB is 220 (mg/g), for MB is 176 (mg/g). Furthermore, these SiO ceramic sheets had a high recycling capability for removing dyes by calcination. Being modified by Ag nanoclusters, the ceramic sheets present a strong bactericidal function.

CONCLUSION

Our results demonstrated that the obtained SiO non-sintered ceramic sheets is rapid and efficient in the filtration of dyes and bacteria from polluted water.

目的

全球范围内的水污染处理和水安全对所有生物都是至关重要的。在各种水污染中，染料和细菌污染亟待解决。

方法和结果

在这项工作中，制备了一种由平均直径为 220nm 的单分散多孔二氧化硅纳米球（SiO NSs）制成的陶瓷片。所制备的 SiO 陶瓷片被用作“过滤”材料，以去除染料（阿利新蓝，AB；亚甲蓝，MB）和细菌（）。得到的薄片对 AB 的吸附效率高达 98.72%，对 MB 的吸附效率高达 97.35%，对 AB 的吸附容量高达 220（mg/g），对 MB 的吸附容量高达 176（mg/g）。此外，这些 SiO 陶瓷片通过煅烧具有很高的去除染料的循环能力。经 Ag 纳米簇修饰后，陶瓷片具有很强的杀菌功能。