Visible-light-driven photocatalytic inactivation of Escherichia coli by 0D/2D CeO2/g-C3N4 heterojunction: bactericidal performance and mechanism

Ultrathin Sulfur‐Doped g‐C3N4 Nanosheets Controlled by Steam Activation for Enhanced Visible‐Light Photocatalytic Performance

“…In this context, photocatalytic materials have attracted intense research attention for the direct absorption and utilization of visible light. Specifically, photocatalysts convert luminous energy into chemical power and generate active substances with strong oxidation ability, such as superoxide radicals (⋅O 2− ), hydroxyl radicals (⋅OH), electrons (e − ), and holes (h + ) via photochemical reactions, thus finding application in important processes such as photocatalytic water splitting to obtain H 2 as a clean energy source, [1–2] degradation of organic pollutants, [3–5] and elimination of Escherichia coli and Staphylococcus aureus [6–8] . In particular, the photocatalytic degradation technology is often used in the treatment of polluted wastewater based on using solar power to activate the photocatalyst, produce reactive oxygen species, change the internal structure of pollutants, and ultimately transform organic pollutants into CO 2 , H 2 O, or other green small molecules that can be naturally degraded.…”

“…Specifically, photocatalysts convert luminous energy into chemical power and generate active substances with strong oxidation ability, such as superoxide radicals ( * O 2À ), hydroxyl radicals ( * OH), electrons (e À ), and holes (h + ) via photochemical reactions, thus finding application in important processes such as photocatalytic water splitting to obtain H 2 as a clean energy source, [1][2] degradation of organic pollutants, [3][4][5] and elimination of Escherichia coli and Staphylococcus aureus. [6][7][8] In particular, the photocatalytic degradation technology is often used in the treatment of polluted wastewater based on using solar power to activate the photocatalyst, produce reactive oxygen species, change the internal structure of pollutants, and ultimately transform organic pollutants into CO 2 , H 2 O, or other green small molecules that can be naturally degraded. Compared with conventional methods for treating water pollution, the photocatalytic degradation technology exhibits notable advantages, including high efficiency, negligible production of pollution, excellent repeatability, and a straightforward treatment process.…”

Chemically amplified molecular resins for shrinkage-controlled direct nanoimprint lithography of functional oxides: an application towards dark-light dual-mode antibacterial surfaces

“…44 Though several materials are being developed for this purpose, the majority of them are active either under dark or light conditions. [45][46][47] Recently, a few literature have reported photocatalytically-active materials that exhibit antibacterial activity under dark-light dual mode. [48][49][50][51][52] Nevertheless, such materials fall under the category of powders and hence, the development of dual mode-active coatable compositions could be highly beneficial and attractive for rendering numerous frequently touched surfaces with antibacterial properties, especially in high-risk areas like hospitals and public places.…”

Polymerizable sol–gel synthesis of dark-visible light antibacterial magnetically-recoverable AgBr-loaded iron oxide/alumina nanocomposite

“…AgBr is known as a potential candidate that plays a dual role of photosensitizing a semiconductor and eliciting antibacterial activity under dark conditions. Further, the heterojunction between AgBr and iron oxide is also desirable in enhancing photocatalytic efficiency [42,43]. Alumina nanopowder possesses favorable characteristics such as high surface area, low cost, and excellent thermal and chemical stability.…”