Optical and gas sensing properties of TiO2/RGO for methanol, ethanol and acetone vapors

Sensing Properties of g-C3N4/Au Nanocomposite for Organic Vapor Detection

“…Since the volume of chamber was one liter, each microliter refers to 1 ppm of ethanol, methanol, and acetone. Therefore, for 60 ppm, we needed to inject 60 microliters of that substance [ 26 ]. Since ethanol, methanol, and acetone vapors were deployed, a heater was used and the temperature regulated for each gas according to its boiling point (ethanol 79 °C, methanol 65 °C, and acetone 56 °C).…”

An Overview of Electrochemical Sensors Based on Transition Metal Carbides and Oxides: Synthesis and Applications

“…After cooling, it was treated in a furnace at 500 °C for 8 h, producing 25-nm CoO nanoparticles that are attractive for biological sensing applications due to their size and characteristics. Significant research efforts are being dedicated to improving the synthetic procedures for TMC materials such as TiO 2 , Ti 3 C 2 T x , Nb 2 C, and Mo 2 C to improve the performance of the sensors [11,[58][59][60][61]. For instance, Yang and his group [56] reported a novel approach for manufacturing Nb 2 C QDs with pristine crystallographic structures of Nb 2 C MXene phases and surface oxygen-containing species, as shown in Figure 3b.…”

“…Significant research efforts are being dedicated to improving the synthetic procedures for TMC materials such as TiO 2 , Ti 3 C 2 T x , Nb 2 C, and Mo 2 C to improve the performance of the sensors [ 11 , 58 , 59 , 60 , 61 ]. For instance, Yang and his group [ 56 ] reported a novel approach for manufacturing Nb 2 C QDs with pristine crystallographic structures of Nb 2 C MXene phases and surface oxygen-containing species, as shown in Figure 3 b. HF was used to etch Nb 2 AlC powder, and Nb 2 C stacks were treated with tetrapropylammonium hydroxide and pulsed ultrasonication.…”

“…TMO nanomaterials with spherical, nanowire, and nanosheet shapes have shown many desirable properties, including good electronic tunability, varied functionalization, exceptional thermal and chemical stability, non-toxicity, and different kinds of bandgaps, for a variety of electrochemical sensing applications, such as gas sensing, biological sensing, and environmental monitoring [ 7 , 9 , 10 , 11 ]. The most frequently presented configurations of TMOs in the literature are multi-layer, single-planar, and superlattice structures, which can be used to fabricate electrochemical sensors with different selectivity, sensitivity, and stability [ 12 ].…”

Reduced Graphene Oxide@Bimodal TiO2 Nanocomposites as an Efficacious Console for Room Temperature n-Butanol Gas Sensing

“…So far, various rGO-metal oxide-based heterostructures/composites such as rGO-SnO 2, rGO-Co 3 O 4, rGO-ZnO, rGO-WO 3, rGO-Cu 2 O, rGO-NiO, rGO-MoO 3 , and rGO-TiO 2 have been explored for the detection of gases and other analytes. Among them, rGO-TiO 2 composites have been reported for the sensing of different gases and vapors such as NO, NH 3 , ethanol, methanol, acetone, etc. − …”