Enhanced catalytic oxidation of VOCs over porous Mn-based mullite synthesized by in-situ dismutation

Catalytic Combustion of Toluene Over Broccoli‐Shaped Ce1Mn3Ox Solid Solution

“…The image of O 2 ‐TPD was shown in Figure 7b. The peaks from low to high temperature were the desorption peaks of different oxygen species, corresponding to the surface absorbed oxygen species (O ads ), surface/subsurface lattice oxygen (O latt ), and frame or bulk phase lattice oxygen (O’ latt ), respectively [44] . As depicted in Figure 7(b), the two peaks of MnO 2 were located at 113 °C and 761 °C respectively, which can be classified as physisorbed molecular oxygen (O ads ) and lattice oxygen in bulk phase (O’ latt ) [23] .…”

A Facile Method to Synthesize Co3O4 Catalyst for Efficient Chlorobenzene Combustion

“…It can be clearly found that the diffraction peak of Co 3 O 4 ‐A is not as sharp as the other samples, and the width of the peaks are much broader, which indicates that Co 3 O 4 ‐A has lower crystallinity and contains much smaller nanoparticles [42–43] . Co 3 O 4 ‐A crystals have more defects due to their poorer crystallinity, thus exposing more internal atoms of Co 3 O 4 and promoting the activation of surface oxygen species [44] . Furthermore, the strongest diffraction patterns at 36.91° (311) (Figure 1b) for all the samples were analyzed with Scherer equation and the average particle size of the corresponding samples were calculated, which are shown in Table 1.…”

“…[42][43] Co 3 O 4 -A crystals have more defects due to their poorer crystallinity, thus exposing more internal atoms of Co 3 O 4 and promoting the activation of surface oxygen species. [44] Furthermore, the strongest diffraction patterns at 36.91°(311) (Figure 1b) for all the samples were analyzed with Scherer equation and the average particle size of the ChemistrySelect corresponding samples were calculated, which are shown in Table 1. In all samples, the particle size of Co 3 O 4 -A is significantly smaller than that of other samples.…”

Molybdenum Sulfide (MoS2)/Ordered Mesoporous Carbon (OMC) Tubular Mesochannel Photocatalyst for Enhanced Photocatalytic Oxidation for Removal of Volatile Organic Compounds (VOCs)

“…Adsorption technology is considered to be the most economical and promising control strategy, especially for low concentration of VOCs, which is a simple operation at relatively low cost (Zhu et al, 2020). Catalytic oxidation has limited its application because of its high operating temperature and cost (Liu et al, 2021). In recent years, photocatalytic oxidation technology mainly produces reactive oxygen species on the surface of the catalyst by light and achieves the degradation of contaminant and hydrogen evolution (Guan et al, 2018;Zada et al, 2020;Zhang et al, 2021d).…”