Surface dehydroxylation of nanocrystalline TiO2

Korina, Elena; Morozov, Roman; Arkhipushkin, I. A.; Vorobiev, Dmitriy; Heintz, Natalya; Inyaev, Igor; Adawy, Alaa; Mendoza, Rafael; Васильева, И. Г.; Dolinina, Tatiana; Авдин, В. В.; Созыкин, С. А.; Schelokov, Artyom; Попов, В. В.; Streltsova, E. A.; Bol’shakov, Oleg

doi:10.1016/j.inoche.2021.108478

Cited by 2 publications

(1 citation statement)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the ·OH signal gradually weakened upon irradiation and almost disappeared after 10 min. This dark signal possibly stems from surface hydroxyl groups, which mutate into different species under the influence of photocatalytic electrons and holes on the catalyst surface postirradiation. , The FI-IR results of 15% ZA verify this. Figure S8 shows firm, sharp peaks at 3111.6 and 3204.1 cm –1 , which belong to the hydroxyl vibration region …”

Section: Resultsmentioning

confidence: 71%

Facile Preparation of the ZnSe/Ag₂Se Binary Heterojunction for Photocatalytic Antibacterial Efficiency

Wang,

Yuan

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

In a novel approach that capitalized on the differential solubility product (Ksp) of ZnSe and Ag2Se, a unique ZnSe/Ag2Se binary heterostructure was efficiently synthesized in situ. ZnSe/Ag2Se exhibited excellent antimicrobial efficiency under visible light. Incorporating Ag2Se into ZnSe significantly enhanced the photoelectric performance of the catalyst, greatly accelerating the separation of the photogenerated electrons in the system. Active species removal experiments determined that ·O2 – and H2O2 played crucial roles in photocatalytic antibacterial efficiency. Further investigation into the levels of cellular membrane peroxidation, bacterial morphology, and intracellular contents concentration revealed that during the photocatalytic antimicrobial process, reactive oxygen species initially oxidize phospholipids in the cell membrane, leading to damage to the external structure of the cell and leakage of the intracellular contents, ultimately resulting in bacteria inactivation. The photocatalytic antimicrobial process of ZnSe/Ag2Se fundamentally deviates from conventional methods, offering new insights into efficient disinfection and photocatalytic antimicrobial mechanisms.

show abstract

Section: Resultsmentioning

confidence: 71%