Visible-light-driven photoelectrochemical sensing platform based on BiOI nanoflowers/TiO2 nanotubes for detection of atrazine in environmental samples

Engineering exposed vertical nano-TiO2 (001) facets/BiOI nanosheet heterojunction film for constructing a satisfactory PEC glucose oxidase biosensor

“…Diffraction peaks located at 25.9°, 38.4°, and 48.6° correspond to the (101), (004), and (200) facets of TiO 2 , respectively, consistent with the PDF standard card JCPDS Number 75-1537. The diffraction peaks (red curve) at 29.7°, 31.7°, 45.5°, and 51.4° correspond to the (012), (110), (020), and (114) facets of BiOI, respectively, indicating that the prepared BiOI NSs have a tetragonal chloroformate structure 11 and correspond to the standard PDF card JCPDS Number 73-2062. The diffraction peaks are very sharp, verifying the high crystallinity of the samples.…”

“…Fig. 4A shows that, aer BiOI NSs were modied on TiO 2 NSs, the absorption peaks of the samples shied signicantly to the visible region, and the absorption edge increased from 391 nm to 544 nm because BiOI is a narrow band gap semiconductor and could be excited by longer wavelength light, which is benecial to keeping the bioactivity of the enzyme immobilized on the TiO 2 NS/BiOI NS electrode 11 and reducing the occurrence of side reactions in the detection system. 20 The band gap values could be calculated with the following formula: 21 (ahn…”

Recognition and Selectivity Analysis Monitoring of Multicomponent Steroid Estrogen Mixtures in Complex Systems Using a Group-Targeting Environmental Sensor

“…In this work, we focus to develop a novel environmental monitoring method for concomitantly extracting, recognizing, and quantifying multicomponent estrogen mixtures in complex systems. The narrow-band gap semiconductor material CdSe NPs was loaded by electrochemical deposition onto the TiO 2 nanotube array (TNT) to obtain a photoelectrochemical substrate (CdSe NPs-TNT). − Subsequently, it was modified by assembling aptamers through amino cross-link coupling to fabricate a simple and novel visible-light-driven group-targeting monitoring sensor. The performance in terms of sensitivity response, linear range of effectiveness, selectivity, and anti-interference were investigated for the detection of multi-SEs.…”

Applications of Titanium Dioxide Nanostructure in Stomatology

“…TNTs are Molecules 2022, 27, 3881 2 of 18 one-dimensional hollow structures. Preparation methods mainly include template synthesis [10], anodic oxidation [11], and hydrothermal synthesis [12]. Two different TiO 2 structures can produce reactive oxygen species to induce oxidative stress and destroy the cell walls of bacteria, thus exerting antibacterial activity and having strong mechanical properties in stomatology [13][14][15][16].…”