Photocatalytic properties of P25-doped TiO 2 composite film synthesized via sol–gel method on cement substrate

Choudhary

et al. 2021

Small

239

143

Section: Reduction Of Metal Nps Onto Tiomentioning

confidence: 99%

Recent Advances in Plasmonic Photocatalysis Based on TiO₂ and Noble Metal Nanoparticles for Energy Conversion, Environmental Remediation, and Organic Synthesis

Choudhary

et al. 2021

Small

239

143

“…In particular, as a photocatalytic antibacterial agent filler, titanium dioxide (TiO 2 ) has attracted much attention in the field of dental materials due to its excellent performance [ 20 ]. TiO 2 can be activated by absorbing ultra-high bandgap energy radiation [ 21 ]. Then reactive oxygen species (ROS) are generated, which have an antibacterial impact on bacteria as a result of the holes formed in the activated TiO 2 [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

A Multifunctional Dental Resin Composite with Sr-N-Doped TiO2 and n-HA Fillers for Antibacterial and Mineralization Effects

Zhao

Zhang

Liang

et al. 2023

IJMS

Dental caries, particularly secondary caries, which is the main contributor to dental repair failure, has been the subject of extensive research due to its biofilm-mediated, sugar-driven, multifactorial, and dynamic characteristics. The clinical utility of restorations is improved by cleaning bacteria nearby and remineralizing marginal crevices. In this study, a novel multifunctional dental resin composite (DRC) composed of Sr-N-co-doped titanium dioxide (Sr-N-TiO2) nanoparticles and nano-hydroxyapatite (n-HA) reinforcing fillers with improved antibacterial and mineralization properties is proposed. The experimental results showed that the anatase-phase Sr-N-TiO2 nanoparticles were synthesized successfully. After this, the curing depth (CD) of the DRC was measured from 4.36 ± 0.18 mm to 5.10 ± 0.19 mm, which met the clinical treatment needs. The maximum antibacterial rate against Streptococcus mutans (S. mutans) was 98.96%, showing significant inhibition effects (p < 0.0001), which was experimentally verified to be derived from reactive oxygen species (ROS). Meanwhile, the resin exhibited excellent self-remineralization behavior in an SBF solution, and the molar ratio of Ca/P was close to that of HA. Moreover, the relative growth rate (RGR) of mouse fibroblast L929 indicated a high biocompatibility, with the cytotoxicity level being 0 or I. Therefore, our research provides a suitable approach for improving the antibacterial and mineralization properties of DRCs.

“…In this case, the most common one is used i.e., using both Anatase and Rutile shapes in different quantities, preferably Anatase: Rutile in 85:15 ratio. Both cases are studied and the bestsuited one is used (20,21).…”

Section: Introductionmentioning

confidence: 99%

Pollution Control Applications of Nano Titanium Dioxide in the Construction Industry

Meda¹,

Mandi²,

Athreya³

et al. 2022

ECS Trans.

There is an upsurge in air pollution due to urbanization and industrialization across the globe. This calls for immediate action. Large exterior surfaces of high-rise buildings and civil infrastructure can be utilized to one’s advantage by applying nanocoatings that are capable of alleviating the concentration of air pollutants in the surrounding atmosphere. Few nanomaterials with their photocatalytic property can degrade some of the air pollutants such as oxides of nitrogen (NOx) and sulfur (SOx) to their respective non-harmful counterparts, thereby bringing down the concentration of actual pollutants. Most of the metropolitan cities which have high-rise buildings are the ones that have more concentration of pollutants. Therefore, these buildings can be employed for coating nanomaterials on the exterior surface of these buildings. Nano-photocatalysts can be either incorporated onto a surface as a coating or into the outer layer of the building during construction. The most commonly used semi-conductor nano-photocatalyst for this purpose is nano titanium dioxide (TiO2) or its composites, such as silica-doped TiO2. This review paper consolidates various methods of synthesizing TiO2 and its composites, their characterization, different methods of incorporating nanomaterials onto construction materials, and degradation mechanism.