Morphology-engineering enhanced catalytic performance improvement of Fe-Ca-O /TiO2 for 1,2-dichlorobenzene oxidation

TiO2 nanosheet supported MnCeOx: a remarkable catalyst with enhanced low-temperature catalytic activity in o-DCB oxidation

“…For example, the o-DCB conversion rate of TiO 2 -NS was 38.2% at 350 o C, which was much higher than 15.6% of TiO 2 -NTO, suggesting that the crystal plane of TiO 2 signi cantly affected the activity of o-DCB oxidation, and the fact that TiO 2 -NS with preferentially exposed {001} facet exhibited good catalytic activity could be explained by the abundant amount of unsaturated coordinated Ti atoms on the {001} crystal plane favoured high chemical activity, favouring the o-DCB adsorption and oxidation(Liu et al 2016). The above result is in agreement with our previous study(Wen et al 2021). TiO 2 -NS doped with different amount of Mn or Ce were investigated.…”

“…For instance, the T 50% of TiMn15Ce30-NS was 156 o C, and the value was 213 o C for TiMn15Ce30-NTO. These results further con rmed the in uence of the crystal plane of TiO 2 on o-DCB decomposition, which be closely associated with the preferentially exposed {001} crystal plane of TiMn15Ce30-NS (Wen et al 2021). In addition, based on the results in Fig.…”

“…TiO 2 has been used as supports in catalytic oxidation (Liu et al 2001). Recently, researchers have found that catalytic performance of TiO 2 supported catalysts could be modulated through morphology engineering (Wen et al 2021), which could affect the interface adsorption and reaction centers (Khan et al 2020). TiO 2 with certain morphology also affected the Lewis acid strength of the catalyst through the geometric arrangement of the surface O 2− ligands (Martra 2000).…”

“…TiO 2 with certain morphology also affected the Lewis acid strength of the catalyst through the geometric arrangement of the surface O 2− ligands (Martra 2000). Therefore, morphology engineering of TiO 2 could be used as a strategy for promoting the interaction between the active components and the carrier (Wen et al 2021), improving the catalytic activity of the catalyst. Our previous study showed that…”

Engineered N-doped graphene quantum dots/CoFe2O4 spherical composites as a robust and retrievable catalyst: fabrication, characterization, and catalytic performance investigation in microwave-assisted synthesis of quinoline-3-carbonitrile derivatives

“…Besides, reaction time, temperature, and pH adjustment can remarkably affect the morphology and particle size. 47 Therefore, hydrothermal treatment is a powerful tool for the investigation of these purposes. 48 In this work, the FE-SEM technique was applied to study the particle size and morphology attributes.…”