A dual plasmonic core—shell Pt/[TiN@TiO2] catalyst for enhanced photothermal synergistic catalytic activity of VOCs abatement

Synergistic Effect of Reactive Oxygen Species in Photothermocatalytic Removal of VOCs from Cooking Oil Fumes over Pt/CeO2/TiO2

“…Meanwhile, the adsorbed and/or generated water (H 2 16O and H 2 18 O) species on the catalyst surface were desorbed. The desorption peak of 18 O 16 O was detected in the range of 350−550 °C, which was attributed to the gas-phase oxygen formed by the exchange of H 2 18 O and the adsorbed or lattice oxygen species on the TiO 2 surface. Figure 4D Due to the different polarities of heptane and hexanal, their adsorption capacities were not the same.…”

“…Based on our previous research, 43−45 we believed that the change of water resistance on the catalyst was related to the oxygen species too. To test this conclusion, we introduced isotope water (H 2 18 O) to explore the reason for the improvement in the photothermocatalytic performance of the Pt/CeO 2 /TiO 2 catalyst after water treatment. As shown in the desorption signal of water and oxygen in the VOC-TPO isotope tracer experiment (Figure 4C), 16 O 2 in the reaction atmosphere was rapidly consumed as the temperature increased to about 300 °C.…”

“…However, it also has the disadvantage that it only absorbs ultraviolet (UV) light and separation efficiency of the photogenerated charge carriers decreases with temperature rise . Thus, it needs to be modified appropriately. − CeO 2 is well known as a rare earth oxide with a large oxygen release or storage capacity . Although its thermal stability is not outstanding, it shows an advantage that the separation efficiency of the photoinduced charge carriers increases with increasing temperature .…”

Constructing Highly Active Metal Oxides for Toluene Degradation by Fenton Iron Mud Modulation

“…Benatti et al uncovered that IM composed of amorphous materials is a suitable support for loading active materials . Amorphous materials have aroused special attention over catalytic oxidation due to their unique features, such as intrinsic isotropy, short-range order, long-range disorder, larger surface areas, and higher chemical stability. , For toluene oxidation, transition metal oxide catalysts have been extensively investigated, including MnO x , CoO x , FeO x , CeO x , TiO 2 , and CuO x . Besides, mixed metal oxides have been investigated as efficient catalysts, such as Mn–Co mixed oxides, CuO–MnO x bimetallic oxides, Co–Ni bimetal oxides, and CoO x –CeO 2 oxides .…”

All-in-one CoFe2O4@Tf nanoagent with GSH depletion and tumor-targeted ability for mutually enhanced chemodynamic/photothermal synergistic therapy

“…[16][17][18] According to previous studies, excessive oxidation within tumor cells could enhance PTT by interfering with the tumor microenvironment and assisting therapy. [19][20][21][22] Therefore, combining polytherapy is desired to address the incompleteness of monotherapy for PTT.…”