Oxidation Of Toluene Research Articles

Insights into non-crystalline structure of solid solution Ce-Mn co-oxide nanofibers for efficient low-temperature toluene oxidation.

The controllable preparation of efficient non-crystalline solid solution catalysts is a great challenge in the catalytic oxidation of volatile organic compounds. In this work, series non-crystalline solid solution structured Ce-Mn co-oxide nanofibers were creatively prepared by adjusting Ce/Mn molar ratios using electrospinning. 0.20CeMnOx (the ratio of Ce to Mn was 0.2) displayed an outstanding low-temperature toluene oxidation activity (T90 = 233 °C). The formation of the amorphous solid solution and the unique nanofiber structure both contributed to a large specific surface area (S = 173 m2 g-1) and high adsorbed oxygen content (Oads/O = 41.3%), which enhanced the number of active oxygen vacancies. The synergies between non-crystalline structure and active oxygen species markedly improved oxygen migration rate as well as redox ability of the catalysts. Additionally, in situ diffuse reflectance infrared Fourier transform spectra showed that the absorbed toluene could be completely oxidized to CO2 and H2O with benzyl alcohol, benzaldehyde, benzoic acid, and maleic anhydride as intermediates. In summary, this study provided an alternative route for the synthesis of non-crystalline metal co-oxide nanofibers.

Stable Loading of TiO2 Catalysts on the Surface of Metal Substrate for Enhanced Photocatalytic Toluene Oxidation.

To promote the practical application of TiO2 in photocatalytic toluene oxidation, the honeycomb aluminum plates were selected as the metal substrate for the loading of TiO2 powder. Surface-etching treatment was performed and titanium tetrachloride was selected as the binder to strengthen the loading stability. The loading stability and photocatalytic activity of the monolithic catalyst were further investigated, and the optimal surface treatment scheme (acid etching with 15.0 wt.% HNO3 solution for 15 min impregnation) was proposed. Therein, the optimal monolithic catalyst could achieve the loading efficiency of 42.4% and toluene degradation efficiencies of 76.2%. The mechanism for the stable loading of TiO2 was revealed by experiment and DFT calculation. The high surface roughness of metal substrate and the strong chemisorption between TiO2 and TiCl4 accounted for the high loading efficiency and photocatalytic activity. This work provides the pioneering exploration for the practical application of TiO2 catalysts loaded on the surface of metal substrate for VOCs removal, which is of significance for the large-scaled application of photocatalytic technology.

Highly Efficient RGO-Supported Pd Catalyst for Low Temperature Hydrocarbon Oxidation

The work presents Pd-containing catalysts for practical application with enhanced low-temperature activity in the complete oxidation of volatile organic compounds (VOCs) using innovative combinations of reduced graphene oxide (RGO) and alumina. The catalysts were characterized by XRD, SEM, TEM, XPS, low-temperature N2-adsorption, and CO chemisorption. The tests on complete catalytic oxidation of different VOC (propane, butane, hexane, dimethyl ether, toluene, propylene) and CO were carried out. The reaction kinetics and the mechanism of the reaction of complete oxidation of toluene are being investigated in detail. The results show that the new catalyst design makes it able to completely oxidize the studied VOCs and CO at low temperatures (100–350 °C) with long-term stability. Using a variety of instrumental methods, it was established that for high activity and long-term stability, the optimal ratio Pd/PdO should be close to 1:1. The most probable mechanism of complete toluene oxidation is the mechanism of Langmuir–Hinshelwood. The high activity and the weak effect of water on the catalyst performance leads to further perspectives for the application of the currently developed approach for the preparation of large-scale monolithic catalytic systems for air pollution control.

Effect of the surface composition of MnOX-CeOX 3D-printed monolithic catalysts toward total oxidation of toluene.

Successful fabrication of Mn-based 3D-printed monoliths by stereolithography (SLA) is reported for the first-time in this work. The catalytic performances, as function of the surface composition, of the developed monoliths were evaluated by the total oxidation of toluene. The monolith with a surface composition of Mn0.7Ce0.3 showed the highest catalytic efficiency (98%) with a T90 value of 322 °C and acceptable catalytic stability after a second reaction cycle. By changing space velocity values, the T90 value can decrease to 311 °C. Microstructural and surface characterizations confirm the formation of Mn2O3 and Ce species on Mn sites and the homogeneous dispersion of Mn and Ce species on the surface of the 3D-printed monoliths. For comparison purposes, a single MnOX and CeOX monoliths were also synthesized and tested by toluene total oxidation, which confirms the cooperative effect between the oxygen storage capacity of Ce and the redox ability of Mn species observed in Mn0.7Ce0.3 monolith catalyst, giving rise to the highest catalytic activity. These results pointed out the promising catalytic properties of the developed Mn-based 3D-printed monolith catalysts for the total oxidation of volatile organic compounds at a low cost, which is an interesting alternative to mitigating atmospheric emissions.

Tuning the oxygen vacancy and acidity of V-Ag-Ce/TiO2 catalyst for selective gas-phase oxidation of toluene to benzaldehyde

Toluene gas-phase oxidation is a green, chlorine-free production process for benzaldehyde but its conversion efficiency is still unsatisfying due to the lack of highly efficient catalyst. Here the selective oxidation of toluene to benzaldehyde over V-Ag-Ce/TiO2 under an air atmosphere was investigated. The catalyst was prepared by impregnation and characterized by scanning electron microscope (SEM), N2 adsorption-desorption, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Electron paramagnetic resonance (EPR), H2 temperature programmed reduction (H2-TPR), O2 temperature programmed desorption (O2-TPD), and NH3 temperature programmed desorption (NH3-TPD). The amount of oxygen vacancy and acid of the catalyst can be tuned through adjusting the V:Ag:Ce ratio. Over the optimum catalyst (V:Ag:Ce = 4:2:1, molar ratio), 92% benzaldehyde selectivity with a 27% toluene conversion can be obtained at 550 °C. Medium amounts of oxygen vacancy (0.43) and acidity (0.10 mmol/g) are found to be conducive to the conversion of toluene to benzaldehyde. This study has important theoretical guiding significance for improving conversion efficiency from toluene to benzaldehyde by gas-phase aerobic oxidation.

Commercial SCR catalyst modified with Cu metal to simultaneously efficiently remove NO and toluene in the fuel gas.

Developing an environmentally friendly selective catalytic reduction (SCR) catalyst to effectively eliminate both nitric oxides (NO) and toluene has garnered significant attention for regulating emissions from automobiles and the combustion of fossil fuels. This study synthesized a series of novel commercial V2O5-WO3/TiO2 catalysts modified with Cu through the wet impregnation method, which was employed to simultaneously remove NO and toluene from the fuel gas. The assessment of catalyst removal performance was conducted at a selective catalytic reduction system, and the experimental results showed a significant increase in the catalytic activity due to the modification of the copper metal. The 10% Cu/SCR catalyst showed a superior activity that the NO and toluene conversion reached 100% and 95.56% at 300 °C, respectively. Subsequently, various characterization techniques were employed to investigate the crystal phase, morphology, physical features, chemical states, and surface acidity properties of the synthesis catalysts. According to the characterization results, the presence of Cu metal did not have a noticeable impact on the physical property. However, the redox performance was enhanced, and the number of surface acidic sites was also increased after adding Cu to the SCR catalyst. Furthermore, the redox cycle of Cu metal and V species was facilitated to produce more active oxygen which helped to improve the NO and toluene conversion. This work offered a novel perspective into the synergistic oxidation of both NO and toluene, which was potentially relevant for improving the selective catalytic reduction process in coal-fired power plants.

Highly active and stable plate-like ZSM‑5 supported MnOx catalysts for toluene Oxidation: Effect of preparation methods

Catalysts consisting of MnOx supported on plate-like ZSM-5 with the Si/Al ratio of 70 (MnOx/PZ5) were synthesized using four different methods: in-situ growth (MnOx/PZ5-IG), ammonia precipitation (MnOx/PZ5-AP), citric acid complexation (MnOx/PZ5-CA), and traditional impregnation (MnOx/PZ5-TI). The catalytic activity of these catalysts for toluene oxidation was evaluated, and their physicochemical properties were characterized by several technologies. The results showed the catalytic activity for toluene oxidation was significantly influenced by the preparation methods. Notably, MnOx/PZ5-IG demonstrated the highest catalytic activity for oxidation of toluene with the specific activity per unit mass of Mn with 2.12 × 10-6 at 250 °C, 3.8 times higher than that of MnOx/PZ5-CA, offering new ideas for the design of low-cost materials for VOCs elimination in the future. The excellent performance of MnOx/PZ5-IG could be attributed to the higher Mn4+ ratio with more reducible, active surface adsorbed oxygen and dispersion of MnOx, which also showed high stability. Finally, the reaction mechanism analyzed by in-situ DRIFTS found that MnOx/PZ5-IG promoted the activity of surface lattice oxygen, conducive to increasing the reaction rate and facilitating the ring opening of benzene, thus, deepening the oxidation of toluene to CO2 and H2O.

Preparation of rare earth metal ions promoted MnOx@halloysite catalyst for highly efficient catalytic oxidation of toluene

Halloysite with nanotube structure is a potential functional support to prepare high-performance catalysts for the oxidation of volatile organic compounds (VOCs) at low temperatures. In this work, rare earth metal ions promoted MnOx@halloysite system were synthesized and demonstrated improved toluene oxidation. The obtained catalyst exhibits excellent catalytic performance, including toluene conversion efficiency (T90 = 232 °C), CO2 selectivity (100%), super long-term stability and water resistance under the condition of toluene concentration with 1000 ppm. It has been demonstrated that the La-promoted halloysite-supported MnOx catalyst increased the ratio of Mn3+ and the number of surface oxygen vacancies, facilitating the formation of active oxygen species and enhancing low-temperature catalytic activity. Moreover, in situ diffuse reflectance infrared Fourier transform spectroscopy confirmed the intermediates generated during toluene oxidation. Toluene oxidation occurred via the benzyl alcohol → benzoate → anhydride reaction pathway over the obtained catalysts. This work provides a considerable experimental basis for understanding the catalytic performance and reaction mechanism of rare earth metal ions promoting the manganese oxides supported by clay minerals for toluene oxidation and paves the way for the development of high-performance catalysts toward toluene oxidation.

Clarify the effect of different metals doping on α-MnO2 for toluene adsorption and deep oxidation

α-MnO2 doped with four metals (Cu, Ce, Co, Fe) were prepared via a redox co-precipitation method. MnCu exhibited the highest activity and the temperature required for achieving 90% toluene conversion was 224℃ at a weight hourly space velocity of 30000 mL·g−1·h−1. Moreover, MnCu possessed outstanding thermal stability and resistance to H2O. The optimal crystal structure, appropriate Mn3+/Mn4+ proportion, and superior redox properties of MnCu contributed to the generation of oxygen vacancies and the highest lattice oxygen (Olat) mobility. Both surface and bulk lattice oxygen consumed in MnCu can be supplemented promptly by gaseous oxygen. Therefore, a balance between toluene adsorption and deep oxidation was built in MnCu to ensure the continuous oxidation of toluene. Although the abundant surface defects and a relatively active surface lattice oxygen accelerated the adsorption and activation of toluene over MnFe, it exhibited the poorest activity. This was because the deep oxidation of toluene was inhibited owing to poor lattice oxygen migration. The adsorbed toluene and part intermediates might cover the catalyst surface preventing the continuous oxidation of toluene. This further illustrated that the deep oxidation of toluene was much more important than the adsorption for the design of MnO2-based mixed oxide catalysts.

Promoting multiple reactive oxygen species generation for deep oxidation of VOCs by UV/persulfate/permanganate

Advanced oxidation processes (AOPs) could effectively remove volatile organic compounds (VOCs) when coupled with wet scrubbing process. However, it still faces challenges in achieving deep oxidation of VOCs due to the limited production of reactive oxygen species (ROS). Herein, we present the utilization of permanganate (KMnO4) as a co-oxidant to enhance VOCs oxidation in UV/persulfate (PDS)/KMnO4 system. The removal efficiency of a targeted VOC, toluene, kept high at above 90% throughout the entire long-term reaction of 4 h, which was much higher than that of UV/PDS and UV/KMnO4. Notably, the in-situ formed manganese oxide (MnOx) acts as a catalyst in UV/MnOx and UV/MnOx/PDS, facilitating the generation of various ROS and thereby enhancing VOCs degradation. Electron paramagnetic resonance (EPR) and quenching experiments indicated that sulfate radical (SO4−), hydroxyl radical (HO), superoxide radical (O2−) and singlet oxygen (1O2) were the main ROS generated in the UV/PDS/KMnO4 system. The overall oxidation process can be divided into three stages: the UV/KMnO4-dominated stage, the UV/MnOx/PDS-dominated stage, and the UV/MnOx-dominated stage. Correspondingly, HO played a major role in toluene oxidation in the UV/KMnO4-dominated and UV/MnOx-dominated stages, with the contributions of 48% and 52%, respectively. Meanwhile, SO4− played a more significant role in the UV/MnOx/PDS-dominated stage, with a contribution of 59%. Three main reaction pathways involving electron abstraction, HO addition and benzene ring opening were proposed based on the intermediates identified by proton-transfer-reaction mass spectrometry (PTR-MS). This study provided a deep understanding of KMnO4 in improving the oxidation capacity of UV-based AOPs for VOCs degradation, emphasizing the importance of in-situ formed MnOx for promoting multiple ROS generation.

One-pot solvothermal synthesis of highly dispersed, morphology- and crystal structure-tunable copper-manganese oxide for catalytic combustion of toluene at low temperatures

Copper-manganese composite oxide (CuMnOx) catalyst was prepared through an improved solvothermal reduction by short-chain dopamine (DA) with catechol structure for catalytic oxidation of toluene. The catalyst possessed the properties of controllable morphology, adjustable size, high dispersion and excellent catalytic activity. The regular hexagonal, square and spherical crystal particles with different crystal structures were synthesized by adjusting the molar ratio of copper and manganese during the reaction. Further investigation of the performance indicated that CuMnOx − 1 (Cu:Mn = 1:1) had high catalytic combustion activity with low temperatures of T50 (205 ℃) and T90 (221 ℃). Meantime, it has favorable stability with the basically unchanged conversion efficiency in 60 h of continuous testing.

Light-driven photothermocatalytic performance of the Pt/Co3O4 catalyst for toluene oxidation

Light-driven photothermocatalytic oxidation is a promising method for the elimination of volatile organic compounds (VOCs). The Co3O4, 0.46 Pt/Co3O4 and 0.97 Pt/Co3O4 catalysts were fabricated via the simple molten salt and incipient wetness impregnation method. Compared with Co3O4 and 0.46 Pt/Co3O4, the 0.97 Pt/Co3O4 catalyst showed higher photothermocatalytic performance for toluene oxidation under simulated solar irradiation intensity of 900 ​mW ​cm−2, with the toluene conversion and CO2 yield being up to 98.3 % and 96.0 %, respectively. The better activity was ascribed to its outstanding strong light absorption and low temperature reducibility. Meanwhile, 0.97 Pt/Co3O4 also exhibited an excellent photothermocatalytic stability and H2O resistance. The Vis−IR light played a key role in the photothermocatalytic oxidation of toluene in the whole solar spectrum. This work benefited the synthesis of catalysts with good photothermocatalytic activity for environment friendly treatment of VOCs.

Mesoporous Nanosized Manganese Dioxides for Efficient Toluene Oxidation

An efficient approach to synthetize the sandwich-like graphene-supported manganese oxides nanosheets (G-MnO[Formula: see text] had been developed for catalytic combustion of toluene by employing sandwich-like graphene-silica nanosheets (G-silica) as intermediates. The as-prepared G-MnO2 not only inherited the two-dimensional structure of reduced graphene, high specific surface areas, the unique mesoporous structure, good dispersion, but also possessed numerous nanoparticles of crystalline MnO2 with the size of about 5[Formula: see text]nm on each nanosheet. Such unique features had enhanced significantly the catalytic performance and catalytic stability of MnO2 for toluene oxidation. As a consequence, with the help of sandwich-like G-silica intermediates, the T[Formula: see text] and T[Formula: see text] of G-MnO2 for toluene was 240[Formula: see text]C (3.92[Formula: see text][Formula: see text][Formula: see text]mol [Formula: see text]g[Formula: see text][Formula: see text]h[Formula: see text] and 262[Formula: see text]C (7.06[Formula: see text][Formula: see text][Formula: see text]h[Formula: see text] respectively, and even after 30[Formula: see text]h at 288[Formula: see text]C, the conversion of toluene could still be maintained at 99.7% (GHSV[Formula: see text]60[Formula: see text]000[Formula: see text]mL[Formula: see text]g[Formula: see text][Formula: see text]h[Formula: see text].

Synthesis of Layered Lead-Free Perovskite Nanocrystals with Precise Size and Shape Control and Their Photocatalytic Activity.

Halide perovskites have attracted enormous attention due to their potential applications in optoelectronics and photocatalysis. However, concerns over their instability, toxicity, and unsatisfactory efficiency have necessitated the development of lead-free all-inorganic halide perovskites. A major challenge in designing efficient halide perovskites for practical applications is the lack of effective methods for producing nanocrystals with precise size and shape control. In this work, a layered perovskite, Cs4ZnSb2Cl12 (CZS), is found from calculations to exhibit size- and facet-dependent optoelectronic properties in the nanoscale, and thus, a colloidal method is used to synthesize the CZS nanoparticles with size-tunable morphologies: zero- (nanodots), one- (nanowires and nanorods), two- (nanoplates), and three-dimensional (nanopolyhedra). The growth kinetics of the CZS nanostructures, along with the effects of surface ligands, reaction temperature, and time were investigated. The optoelectronic properties of the nanocrystals varied with size due to quantum confinement effects and with shape due to anisotropy within the crystals and the exposure of specific facets. These properties could be modulated to enhance the visible-light photocatalytic performance for toluene oxidation. In particular, the 9.7 nm CZS nanoplates displayed a toluene to benzaldehyde conversion rate of 1893 μmol g-1 h-1 (95% selectivity), 500 times higher than the bulk synthesized CZS, and comparable with the reported photocatalysts. This study demonstrates the integration of theoretical calculations and synthesis, revealing an approach to the design and fabrication of novel, high-performance colloidal perovskite nanocrystals for optoelectronic and photocatalytic applications.

Modulated synthesis of MnO2-decorated Fe–Mn composite oxides：synergistic effects on boosting the performance of toluene oxidation

MnO2-decorated iron-manganese composite oxides were prepared via a novel method combining hydrolysis driving redox reaction and hydrothermal approach. The differences in physicochemical properties and microstructures were controlled by modulating the ratio of MnO2 to 5Mn1Fe (The molar ratio of Mn to Fe was 5:1). Characterization results displayed that the excellent efficiency of toluene removal over 3MnO2/5Mn1Fe catalyst was attributable to the special structure, strong low-temperature reducibility, high surface Mn3+/Mn4+ and Oads/Olatt molar ratios. The interaction between MnO2 and 5Mn1Fe played a predominant role in outstanding catalytic efficiency of the hetero-nanostructures. Among all as-prepared catalysts, the highest activity was achieved over the bayberry-like 3MnO2/5Mn1Fe catalyst with corresponding T90 of 233 °C, much lower than MnO2 for 313 °C and 5Mn1Fe for 280 °C. This successful strategy could not only be applied to VOCs catalytic oxidation but also provide a novel synthetic path for other catalysis systems.

Catalytic oxidation of toluene by manganese oxides: Effect of K+ doping on oxygen vacancy

Alkali metal potassium was beneficial to the electronic regulation and structural stability of transition metal oxides. Herein, K ions were introduced into manganese oxides by different methods to improve the degradation efficiency of toluene. The results of activity experiments indicated that KMnO4-HT (HT: Hydrothermal method) exhibited outstanding low-temperature catalytic activity, and 90% conversion of toluene can be achieved at 243°C, which was 41°C and 43°C lower than that of KNO3-HT and Mn-HT, respectively. The largest specific surface area was observed on KMnO4-HT, facilitating the adsorption of toluene. The formation of cryptomelane structure over KMnO4-HT could contribute to higher content of Mn3+ and lattice oxygen (Olatt), excellent low-temperature reducibility, and high oxygen mobility, which could increase the catalytic performance. Furthermore, two distinct degradation pathways were inferred. Pathway Ⅰ (KMnO4-HT): toluene → benzyl → benzoic acid → carbonate → CO2 and H2O; Pathway ⅠⅠ (Mn-HT): toluene → benzyl alcohol → benzoic acid → phenol → maleic anhydride → CO2 and H2O. Fewer intermediates were detected on KMnO4-HT, indicating its stronger oxidation capacity of toluene, which was originated from the doping of K+ and the interaction between KOMn. More intermediates were observed on Mn-HT, which can be attributed to the weaker oxidation ability of pure Mn. The results indicated that the doping of K+ can improve the catalytic oxidation capacity of toluene, resulting in promoted degradation of intermediates during the oxidation of toluene.

Enhanced low-temperature catalytic combustion of toluene over Cu and Mn co-modified α-MnO2 with flower spheres

MnO2, MnO2-M and MnO2-CM were successfully obtained by one-pot hydrothermal method using different precursors, and were applied for the catalytic oxidation of toluene. A variety of characterization means were used to precisely define the physicochemical characteristics of these catalysts. The Cu and Mn co-modified MnO2-CM shows a nanosphere morphology which is made of worm-like particles. And it exhibits better low-temperature catalytic oxidation activity, long term activity stability and H2O resistance, in which the temperature of 90% toluene conversion is about 207 °C and the apparent activation energy of MnO2-CM is as low as 31.7 kJ∙mol−1. This is due to the strong interaction between Cu and Mn from the redox coupling reaction (Cu+ + Mn4+ ↔ Cu2+ + Mn3+) that contributes to produce more oxygen vacancies in MnO2-CM to enhance the gaseous oxygen activation and supplement of active oxygen species at low temperature, leading to stronger oxidation ability.

Copper-Based Silica Nanotubes as Novel Catalysts for the Total Oxidation of Toluene.

Cu (10 wt%) materials on silica nanotubes were prepared via two different synthetic approaches, co-synthesis and wetness impregnation on preformed SiO2 nanotubes, both as dried or calcined materials, with Cu(NO3)2.5H2O as a material precursor. The obtained silica and the Cu samples, after calcination at 550 °C for 5 h, were characterized by several techniques, such as TEM, N2 physisorption, XRD, Raman, H2-TPR and XPS, and tested for toluene oxidation in the 20-450 °C temperature range. A reference sample, Cu(10 wt%) over commercial silica, was also prepared. The copper-based silica nanotubes exhibited the best performances with respect to toluene oxidation. The Cu-based catalyst using dried silica nanotubes has the lowest T50 (306 °C), the temperature required for 50% toluene conversion, compared with a T50 of 345 °C obtained for the reference catalyst. The excellent catalytic properties of this catalyst were ascribed to the presence of easy copper (II) species finely dispersed (crystallite size of 13 nm) on the surface of silica nanotubes. The present data underlined the impact of the synthetic method on the catalyst properties and oxidation activity.

Tandem supported Pt and ZSM-5 catalyst with separated catalytic functions for promoting multicomponent VOCs oxidation

The painting and electronics industries simultaneously release aromatic compounds and chlorinated organics. The development of catalysts with synergistic control of these pollutants is of great significance to achieve air purification. However, developing active catalysts while maintaining good chlorine resistance remain a huge challenge due to the difficulty of the trade-off between the redox properties and acidity and the production of polychlorinated byproducts. Herein, we introduce a novel tandem PtSn/CeO2&Mn/ZSM-5 catalyst and investigate its catalytic performance for multicomponent volatile organic compounds (VOCs) oxidation. The two individual catalysts, PtSn/CeO2 and Mn/ZSM-5, were used to catalyze two distinct sequential reactions. PtSn/CeO2 catalyzed toluene oxidation to produce CO2 and H2O. Meanwhile, the introduction of SnOx favored the adsorption of trichloroethylene (TCE) molecules that prevented Pt sites from chlorine poisoning and possibly converted adsorbed TCE into intermediates, which were subsequently oxidized deeply by the nearby Mn/ZSM-5. This approach resulted in a remarkable oxidation efficiency for toluene (T90 = 296 °C) and TCE (T90 = 384 °C), with fewer unexpected toxic byproducts (chlorobenzene and 4-chlorotoluene). Furthermore, the tandem catalyst possessed excellent chlorine and water resistances. In conclusion, the above findings provide new insights into the design and/or syntheses of advanced catalysts for widespread VOCs pollution control.

Kinetics of the catalytic oxidation of toluene over Mn,Cu co-doped Fe2O3: Ex situ XANES and EXAFS studies to investigate mechanism

In this study, the catalytic mechanism of Mn,Cu-Fe2O3 catalyst was directly determined through reaction kinetics coupled with surface characterization. The impact of operating conditions on the catalytic performance of Mn,Cu-Fe2O3 nanocomposite for toluene oxidation in a continuous fixed-bed reactor was investigated. It was found that Mn,Cu-Fe2O3 catalyst gave the best catalytic performance in toluene removal when the initial concentrations of toluene and oxygen were at 165 ppmv and 10% at a flow rate of 200 mL min−1, respectively. Subsequently, Power-law, Mars-van Krevelen, and Langmuir-Hinshelwood models were developed to describe the kinetics of the total toluene oxidation for both toluene- and oxygen-dependent mixtures in a range of temperatures. According to the results, the basic Power-law model could not properly represent the kinetics of toluene oxidation over the catalyst. Meanwhile, the Mars-van Krevelen model allows for determining the kinetic mechanism under the variation of C7H8 concentration. The Langmuir-Hinshelwood model is attainable to express the kinetics of the oxygen-involved reaction mechanism. Moreover, the change in the structure of Mn,Cu-Fe2O3 catalyst after the catalytic reaction was characterized by X-ray Absorption Near-edge Structure (XANES) and Extended X-ray Absorption Fine Structure (EXAFS) measurements to confirm the catalytic mechanism determined through reaction kinetics. The achieved results suggest the possibility of using various models to justify the correlation between model-simulated and experimental data for VOCs oxidation in a continuous-flow catalytic reactor.