Good Catalytic Ability Research Articles

Catalytic Performance in Nitroarene Reduction of Nanocatalyst Based on Noble Metal Nanoparticles Supported on Polymer/s-Layer Protein Hybrids.

We present a novel bionanocatalyst fabricated by the adsorption-reduction of metal ions on a polyurethane/S-layer protein biotemplate. The bioinspired support was obtained by the adsorption of S-layer proteins (isolated from Lentilactobacillus kefiri) on polyurethane particles. Silver and platinum nanoparticles were well-loaded on the surface of the support after the combination with metallic salts and reduction with H2 at room temperature. Transmission electron microscopy analysis revealed the strawberry-like morphology of the bionanocatalysts with a particle size, dn, of 2.39 nm for platinum and 9.60 nm for silver. Both systems catalyzed the hydrogenation of p-nitrophenol to p-aminophenol with high efficiency in water at mild conditions in the presence of NaBH4. Three different amounts of bionanocatalyst were tested, and in all cases, conversions between 97 and 99% were observed. The catalysts displayed excellent recyclability over ten cycles, and no extensive damage in their nanostructure was noted after them. The bionanocatalysts were stable during their production, storage, and use, thanks to the fact that the biosupport provides an effective driving force in the formation and stabilization of the metallic nanoparticles. The successful bioinspired production strategy and the good catalytic ability of the systems are encouraging in the search for nontoxic, simple, clean, and eco-friendly procedures for the synthesis and exploitation of nanostructures.

Synthesis of g-C3N4/HC composite and its visible light catalytic performance

Thermal polymerization prepared g-C3N4/HC composite with good visible light catalytic ability using corn stover and urea as raw materials. The structure of the g-C3N4/HC composite was characterized by XRD, and it was determined that the composite was composed of g-C3N4 and HC. The morphology of the g-C3N4/HC composite was characterized by SEM. g-C3N4 is dispersed in sheet form on HC tubes with a regular porous structure. The degradation efficiency of RhB by g-C3N4/HC reached 99.14% after 70 min irradiation by a 70 W metal halide lamp. The cyclic degradation experiments proved that g-C3N4/HC has good reusability. Compared with g-C3N4, the visible light absorption capacity of g-C3N4/HC is enhanced, and the electron-hole recombination rate is also reduced, which results in the higher photocatalytic capacity of g-C3N4/HC. The free radical trapping experiments confirmed that the hole free radical and the hydroxyl free radical are the primary active substances in the photodegradation reaction.

Pt@AuNF nanozyme and horseradish peroxidase-based lateral flow immunoassay dual enzymes signal amplification strategy for sensitive detection of zearalenone

Lateral flow immunoassay (LFIA) has been employed extensively for the rapid, accurate, and portable detection of foodborne toxins. Here, the platinum gold nanoflower core-shell (Pt@AuNF) nanozyme with excellent optical properties, good catalytic ability and controllable reaction conditions were prepared to effectively improve the performance of lateral flow immunoassay (LFIA) strips. The Pt@AuNF nanozyme and horseradish peroxidase (HRP) combined with monoclonal antibody were used as signal probes based on the dual enzymes catalytic signal amplification strategy to detect Zearalenone sensitively. Dual enzymes catalyze the decomposition of hydrogen peroxide into hydroxyl radicals, and under the influence of hydroxyl radicals, colorless 3,3′,5,5′ -tetramethylbenzidine (TMB) is oxidized to blue ox-TMB, which is superimposed on the strips for signal amplification to broaden the detection range. The limit of detection (LOD) of the Pt@AuNF-HRP labeled LFIA strips after signal amplification was 0.052 ng/mL, and the detection range was 0.052–7.21 ng/mL. Compared with the Pt@AuNF labeled strips, while reducing the probes amount by half to achieve antibody conservation, the detection range was expanded by 5-fold based on achieving improved sensitivity. The study provided a meaningful reference for expanding the detection range based on immunoassay.

Effects of silver nanoparticles prepared by aqueous extract of Ferula communis on the developing mouse embryo after maternal exposure.

Green synthesis of silver nanoparticles (AgNPs) from aqueous silver nitrate has been achieved using an extract of Ferula communis leaf as a capping, reducing, and stabilizing agent. The formation and stability of the green synthesized silver nanoparticles in the colloidal solution were monitored by absorption measurements. Silver nanoparticles were characterized by different analyses such as X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), and FT-IR spectroscopy. The average particle size of silver nanoparticles was determined by high-resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM) analyses. In this experiment, pregnant female mice were divided into four groups (G); G1 was the control and received phosphate-buffered saline, G2 received orally aqueous extract of F. communis leaf, G3 received orally AgNPs chemically prepared by NaBH4, and G4 received orally AgNPs prepared by aqueous extract of F. communis leaf. The diameter of AgNPs was 20nm. AgNPs exhibited good catalytic reduction ability toward methyl orange in the presence of sodium borohydride with a rate constant of 2.95 x 10-4 s-1. The results revealed the occurrence of resorbed embryos in G2, G3, and G4 with different percentages. The livers of mothers and embryos at E14.5 in G2, G3, and G4 showed different levels of histopathological alteration and increase in GFAP and CTGF expressions compared with the control group. The study concluded that the oral administration of small-sized AgNPs (20nm) prepared by Ferula extract had less toxicity than those prepared by the chemical method.

Preparation, properties and application of multifunctional CaWO4: Tb3+/SiO2/AgBr fluorescent composite

Nanoscale CaWO4:Tb3+/SiO2/AgBr composite phosphors were synthesized by a simple two-step method. The structure, luminescence and catalytic properties of the materials were studied by XRD, FT-IR, UV–vis DRS, etc. The structural information, surface morphology, and the enhanced fluorescence properties of nano size CaWO4: Tb3+/AgBr modified by SiO2 were investigated in detail. CaWO4: Tb3+/SiO2/AgBr also showed good dispersion and stability in aqueous solution, and the fluorescence intensity remained stable within 6 h. Based on above findings, CaWO4: Tb3+/SiO2/AgBr possess the high selectivity and sensitivity for p-nitrophenol (4-NP) and p-aminobenzoic acid (PABA) detections, the detection limits are 6.74 and 7.42 μM respectively. Besides, as a catalyst, CaWO4: Tb3+/SiO2/AgBr also shows good catalytic ability for p-nitrophenol reduction. When the loading content of AgBr is 15%, the catalytic process complete within 8 min. Thus, the nanoscale CaWO4: Tb3+/SiO2/AgBr composite may act as a multifunctional material for the development of applied science.

Oxygen-tolerant and recyclable graphitic carbon nitride (g-C3N4) catalyzed photo-induced electron/energy transfer reversible addition-fragmentation chain transfer polymerization (PET-RAFT) without any additives

The existing photo-induced electron/energy transfer reversible addition-fragmentation chain transfer polymerization (PET-RAFT) systems using g-C3N4 as catalyst are complicated and often require modification of g-C3N4 or additives as co-catalyst. Herein, we propose an economical g-C3N4 catalyzed PET-RAFT polymerization without any additives. The good catalytic ability of g-C3N4 is attributed to the fact that the thermal exfoliation by secondary calcination increases the specific surface area and thus exposes more photocatalytic active sites. The g-C3N4 catalyzed PET-RAFT polymerizations of methyl methacrylate were successfully carried out under blue LEDs. The faster polymerization rates without prior deoxygenation showed good oxygen-tolerant. The g-C3N4 can be easily recovered after polymerization and cycled at least seven times with little loss of catalytic performance.

A Co‐Ni‐CM Heterogeneous Catalyst for the Direct Synthesis of Amides from the Oxidative Coupling of Aldehydes with N‐Substituted Formamides

AbstractGiven the importance of amides in pharmaceutical and chemical industries, a Co−Ni composites (Co−Ni‐CM) heterogeneous catalytic system for the synthesis of amides from the oxidative coupling of aldehydes with N‐substituted formamides has been developed under mild conditions. The catalyst was prepared by pyrolysis under ambient atmosphere using Co‐BTC supported NiCl2 as a precursor. The catalytic system possesses good catalytic ability and good compatibility with functional groups. The surface morphology and internal element composition of the catalyst were characterized by powder X‐ray diffraction (XRD), BET adsorption, high resolution transmission electron microscope (HRTEM), scanning electron microscope (SEM), inductively coupled plasma emission spectroscopy (ICP‐OES) and X‐ray photoelectron spectroscopy (XPS). The results show that the interaction of Co−Ni is a key factor for the good catalytic activity of the catalyst. Then control experiments related to the mechanism of this transformation indicate a free radical process is involved in this transformation. More importantly, the catalyst has an excellent recycling performance and can be recycled seven times without obvious loss of catalytic activity.

Highly sensitive determination of putrescine in pork by an electrochemical biosensor constructed with unfolded hemoglobin and diamine oxidase

Based on the principle that diamine oxidase (DAO) catalyzes putrescine to produce H2O2 and unfolded hemoglobin (uHb) has the good catalytic ability to H2O2, a highly sensitive electrochemical biosensor for the determination of putrescine was constructed. The biosensor was prepared through immobilizing uHb on the surface of clay modified glassy carbon electrode (GCE) by physical adsorption method, and then using 2.5% glutaraldehyde as cross-linking agent to fix DAO. In order to achieve the best results, the concentration of DAO, the type of peroxidase, the stability of modified electrode and the test conditions were optimized. Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) were used to characterize the preparation process of the sensor. Under the optimized conditions, the difference of reductive peak currents had good linear relationships with putrescine concentration in the ranges of 1.0 × 10−11-1.0 × 10−10 mol L−1 and 1.0 × 10−10-1.0 × 10−9 mol L−1 (r ≥ 0.997), respectively. The limit of detection (LOD) was 3.3 × 10−12 mol L−1 (S/N = 3). The developed electrochemical biosensor had good reproducibility, stability and sensitivity, and was successfully applied for the determination of putrescine in real pork samples.

Preparation and performance of novel magnetic phase-change-microcapsule-supported Bi2WO6 catalyst

The design and synthesis of novel photocatalyst with self-temperature control function is an important topic in the field of advanced environmental functional materials. In this work, submicron-sized magnetic phase change microcapsules composed of paraffin core and Fe3O4-loaded silica shell are prepared, on which the Bi2WO6 crystals is grown in situ through hydrothermal reaction to obtain novel magnetic phase-change-microcapsule-supported Bi2WO6 catalyst (MP@FS/BWO). The MP@FS/BWO has a paraffin encapsulation ratio of 57.1%, and the phase change enthalpy of 105.1 J/g in a temperature range of 50–60 °C, which endows the MP@FS/BWO with a certain self-temperature regulation ability. MP@FS/BWO shows excellent catalytic performance in the decomposition of rhodamine B under the simulated sunlight irradiation. After the light source is turned off, it still has good catalytic ability by maintaining high temperature due to its temperature control function based on the phase transition process. The MP@FS/BWO can be easily recycled by magnetic separation and shows good structural stability and reusability. This work provides a new idea for the development of long-effect and energy-saving outdoor photocatalysts.

Study on the mechanism of catalytic fast co-pyrolysis of biomass and coal tar asphaltenes: Gas-liquid-solid products' optimization

It is very important to evaluate how coal tar asphaltenes (CTA) and corn cob (CB) could be used comprehensively in order to achieve zero waste. Catalytic co-pyrolysis is a feasible method to reduce CO2 emissions, realizing the development and utilization of biomass energy, and the recycling of asphaltenes. In this study, the catalytic effect of K on co-pyrolysis was more obvious than that of Ca, Co, Ni, Cu and Zn based on the analysis of TG/DTG, FTIR and Py-GC/MS. The response surface design method and artificial neural network were introduced to comprehensively investigate the effects of mixing ratios, metal loads and heating rates on the catalytic co-pyrolysis. The results showed that K-catalysis co-pyrolysis effectively improved the yield of gas and char, and increased the content of phenolics. In particular, when the load of K was 5.3 wt%, the heating rate was 476 °C/min, and the proportion of CB was 38 wt%, the maximum solid yield was 35.16 wt%, and the solid product had good catalytic ability. Based on the above analysis, the mechanism of K-catalysis co-pyrolysis was proposed.

Peroxymonosulfate activation by magnetic CoNi-MOF catalyst for degradation of organic dye.

In this work, Fe3O4/CoNi-MOF was synthesized by a simple solvothermal method. The catalytic performance of 0.2-Fe3O4/CoNi-MOF toward PMS activation was studied by degradation of 20mg/L methylene blue (MB). The results indicated that 0.2-Fe3O4/CoNi-MOF had good catalytic ability, the removal rate of MB was 99.4% within 60min with 125mg/L PMS and 150mg/L catalyst. Quenching experiment and electron paramagnetic resonance (EPR) analysis revealed that the singlet oxygen (1O2), superoxide radical (•O2-) and sulfate radical (SO4•-) played a crucial role in the catalytic degradation process. Meantime, mechanism of PMS activation by 0.2-Fe3O4/CoNi-MOF was proposed, the electrons donated by Fe2+ can also enhance the Co-Ni cycles. In conclusion, Fe3O4/CoNi-MOF composite catalyst has the advantages of simple preparation, excellent catalytic activity and reusability, which is an effective catalyst for water pollution control.

Tribological properties of trimethylolpropane oleate synthesized through esterification reaction with nano-MoS2 catalysts of different shapes

PurposeThis study aims to investigate the catalytic performance and tribological properties of MoS2 powder.Design/methodology/approachIn this work, the authors attempted to use MoS2 nanoparticles (nano-MoS2) as a catalyst to synthesize trimethylolpropane oleate (TMPTO) by esterification of trimethylolpropane and oleic acid. The small amount of highly dispersed nano-MoS2 catalyst remaining in TMPTO needed not to be separated and could be used as a lubricant modifier directly to achieve the purpose of improving the lubricity performance of TMPTO.FindingsThe results demonstrated that nano-MoS2 had good catalytic esterification ability and achieved in situ dispersion of about 0.191% nano-MoS2 in TMPTO while catalyzing the synthesis of base oil. After high-speed centrifugal sedimentation treatment, the product TMPTO still retained about 0.008% of nano-MoS2. The above-synthesized TMPTO has significantly better lubricity performance than commercially available TMPTO, in which the friction coefficient and wear rate could be reduced by 75%.Originality/valueThe results of this study provide an idea for the design of catalysts for ester oil synthesis.

A copper(ii) complex containing pyridine-2-carbaldehyde and its direct binding onto ethylenediamine functionalized with Fe3O4@SiO2 nanoparticles for catalytic applications.

In the present study, a copper(ii) complex containing a pyridine-2-carbaldehyde ligand and its direct binding onto ethylenediamine functionalized with Fe3O4@SiO2 nanoparticles [Cu(ii)-Schiff base-(CH2)3-SiO2@Fe3O4] as a heterogeneous magnetic nanocatalyst can be easily prepared using a multi-step method. Next, the structural and magnetic properties of the synthesized nanoparticles were identified using Fourier-transform infrared spectroscopy (FT-IR), inductively coupled plasma (ICP), vibrating-sample magnetometry (VSM), transmission electron microscopy (TEM), field-emission scanning electron microscopy (FE-SEM), thermogravimetric analysis (TGA), PXRD (Powder X-ray diffraction), Brunauer-Emmett-Teller (BET), and energy-dispersive X-ray spectrometry (EDX) techniques. TEM images reveal that the average particle size distribution was found to be in the range of 45-55 nm with spherical shape. The PXRD analysis indicated that the crystallite size was found to be 35.2 nm. The synthesized nanocatalyst exhibited a very good catalytic ability in the synthesis reaction of pyran derivatives and 2-benzylidenemalononitrile derivatives. Product 2-amino-7,7-dimethyl-4-(4-nitrophenyl)-5-oxo-5,6,7,8-tetrahydrobenzo[b]pyran 4e was achieved in 97% yield with a TON of 129.3 and a TOF of 646.6 h-1 and product 2-(4-cyanobenzylidene)malononitrile 3j was achieved in 96% yield with a TON of 128 and a TOF of 984.6 h-1. In addition, the synthesized nanocatalyst was easily separated from the reaction mixture by a magnet and used 7 consecutive times without significant loss of catalytic activity. Also, leaching of copper metal from the synthesized nanocatalyst was very insignificant for this reaction.

Boosting nucleophilic attack to realize high current density biomass valorization on a tunable Prussian blue analogue.

Electrochemical biomass valorization provides a promising approach to generating value-added chemicals. Herein, we have creatively utilized a Prussian blue analogue as a structure template of the anodic catalyst and improved its catalyst capacity by adjusting its electronic structure. The nickel-based Prussian blue analogue/Ni foam (NiFe-PBA/NF) exhibits excellent performance for methanol (MeOH) oxidation and achieves almost 94.1% FE of formic acid at a high current density of 500 mA cm-2. Apart from formic acid, NiFe-PBA/NF also has good catalytic ability for ethanol, glycerol, glucose, and 5-hydroxymethylfurfural (HMF). In short, this work has developed a promising class of catalysts for biomass valorization.

Electrochemical sensing of methotrexate in the presence of folic acid using PAMAM dendrimer-functionalized multiwalled carbon nanotube-modified electrode.

This works presents a novel electrochemical sensor based on the third-generation poly(amidoamine) dendrimer (G3 PAMAM)-functionalized multiwalled carbon nanotube (MWCNT)-modified screen-printed graphite electrode (SPGE) for the simple and sensitive detection of methotrexate (MTX). The carboxylated MWCNTs were covalently functionalized with amino groups of G3 PAMAM and characterized using different techniques. The sensing ability of the designed nanosensor (MWCNTs-PAMAM/SPGE) was tested using differential pulse voltammetry (DPV), chronoamperometry (CHA), linear sweep voltammetry (LSV), and cyclic voltammetry (CV). To investigate the electrocatalytic activity of PAMAM-functionalized MWCNTs, a comparative electrochemical analysis was carried out and it was determined that PAMAM-functionalized MWCNT-modified SPGE showed good electrocatalytic performance for MTX oxidation compared to the unmodified SPGE. The MWCNT-PAMAM/SPGE lead to a reduced overpotential of MTX oxidation of about 300 mV and enhanced current of about 9 μA of the unmodified SPGE. Experiments were performed for the quantitative determination of MTX using the DPV technique. The response peak current linearly related against MTX concentration in the ranges from 0.01 to 110.0 μM and a limit of detection (LOD) equal to 0.003 μM. Also, MWCNT-PAMAM/SPGE exhibits good catalytic ability toward MTX determination in the presence of folic acid (FA), and the separation of their oxidation peaks (peak potential difference = 320 mV) simultaneously detected the above compounds. To prove the applicability of the MWCNT-PAMAM/SPGE sensor, the concentrations of MTX and FA in pharmaceutical products and biological samples were determined. The calculated recoveries were close to 100%, which indicates that the method might be assumed to be accurate.

Nano-sized and microporous palladium catalyst supported on modified chitosan/cigarette butt composite for treatment of environmental contaminants

This study reports a versatile process for the fabrication of a microporous heterogeneous palladium nanocatalyst on a novel spherical, biodegradable, and chemically/physically resistant catalyst support consisting of chitosan (CS) and cigarette waste-derived activated carbon (CAC). The physicochemical properties of the microporous Pd-CS-CAC nanocatalyst developed were successfully determined by FTIR, XRD, FE-SEM, TEM, BET, and EDS techniques. TEM studies showed that the average particle size of the synthesized Pd NPs was about 30 nm. The catalytic prowess of microporous Pd-CS-CAC was evaluated in the reduction/decolorization of various nitroarenes (2-nitroaniline (2-NA), 4-nitroaniline (4-NA), 4-nitrophenol (4-NP), and 4-nitro-o-phenylenediamine (4-NPD)) and organic dyes (methyl red (MR), methyl orange (MO), methylene blue (MB), congo red (CR), and rhodamine B (RhB)) in an aqueous medium in the presence of NaBH4 as the reducing agent at room temperature. The catalytic activities were studied by UV–Vis absorption spectroscopy of the supernatant at regular time intervals. The short reaction times, mild reaction conditions, high efficiency (100% conversion), easy separation, and excellent chemical stability of the catalyst due to its heterogeneity and reusability are the advantages of this method. The results of the tests showed that reduction/decolorization reactions were successfully carried out within 10–140 s due to the good catalytic ability of Pd-CS-CAC. Moreover, Pd-CS-CAC was reused for 5 consecutive times with no loss of the initial shape, size, and morphology, confirming that it was a sustainable and robust nanocatalyst.

Electrocatalytic Oxygen Reduction Reaction by the Pd/Fe-N-C Catalyst and Application in a Zn–Air Battery

Developing a non-platinum catalyst that effectively catalyzes the oxygen reduction reaction (ORR) is highly significant for metal–air batteries. Metal and nitrogen co-doped carbons (M-N-Cs) have emerged as alternative candidates to platinum. In this work, dual-metal Pd/Fe-N-C electrocatalysts were synthesized by the one-step pyrolysis of phytic acid, melamine, and Pd/Fe-based salts. The Pd/Fe-N-C catalyst exhibited a good catalytic ability during the ORR process and outperformed the commercial Pt/C catalyst as regards mass activity, catalytic stability, and methanol tolerance. It was found that Pd-Nx is the active center, and the synergistic effect from the Fe component introduction endowed the Pd/Fe-N-C with an excellent catalytic performance towards the ORR. When assembled into a Zn–air battery, its specific capacity was ~775 mAh gZn−1. Meanwhile, the peak power density could reach 3.85 W mgPd−1, i.e., 3.4 times that of the commercial Pt/C catalyst (1.13 W mgPt−1). This implies that the Pd/Fe-N-C catalyst has potential applications in metal–air batteries.

One-pot hydrothermal in situ growth of In4SnS8@MoS2@CNTs as efficient Pt-free counter electrodes for dye-sensitized solar cells

Developing a synthesis method for large-scale preparation of efficient and economical non noble metal counter electrode (CE) electrocatalytic materials with good catalytic ability and stability is an ideal choice for the commercialization of dye-sensitized solar cells (DSSCs). In this paper, a novel micro-nanostructured composite of CE was prepared by fixing the In4SnS8 and MoS2 on carbon nanotubes (CNTs) and using a one-step hydrothermal strategy. The devices based on the In4SnS8@MoS2@CNTs composite CE performs high power conversion efficiency of 8.72%, far more than that of the device with the control ones (7.57%). The In4SnS8@MoS2 composite were homogeneously distributed on the CNTs surface to form a new In4SnS8@MoS2@CNTs composite network heterojunction. This distinctive porous structure can provide greater contact area and electronic transmission channel to ensure fast charge transport of electrolyte. The prefect electrochemical properties of the In4SnS8@MoS2@CNTs CE for the I−/I3− electrolyte also have been demonstrated by a series of electrochemical tests. As a result, it can be considered that the In4SnS8@MoS2@CNTs will replace the Pt CE and has broad application prospects in DSSCs.

Construction of Sn-Bi-MOF/Ti3C2 Schottky junction for photocatalysis of tetracycline: Performance and degradation mechanism

In this study, Sn–Bi–MOF/Ti3C2 heterojunction catalysts were prepared using the solvothermal method, and their photocatalytic ability to degrade and mineralize tetracycline (TC) under illumination was investigated. After 90 min of photocatalysis, the pollutant had a degradation efficiency of 96.2% and a mineralization rate of 45.5%. The physicochemical properties of the catalysts were analyzed using various methods. The effects of the solution pH, coexisting anions, and water quality on the catalyst performance were investigated. ·O2− and h+ are the main active substances in the photocatalytic mechanism, as demonstrated by free-radical quenching experiments and EPR tests. The degradation of TC and the intermediates produced were determined using 3D fluorescence and LC-MS. The photocatalytic mechanism of Sn–Bi–MOF/Ti3C2 was proposed based on free radical determination and electrochemical tests. The formation of the Schottky junction accelerated the transfer of electrons to Ti3C2 and improved the separation of charges, which led to the generation of free radicals. Sn–Bi–MOF/Ti3C2 still exhibited good catalytic ability after four cycles of the experiments, and the XRD patterns before and after the reaction were consistent, which illustrates that the composite structure was stable. Overall, Sn–Bi–MOF/Ti3C2 has promising applications in the photocatalytic removal of refractory pollutants.

Construction of a controllable and dispersed Fe3O4-based catalyst using ZIFs as a spatial support for highly catalytic degradation of aflatoxin B1

A Fe3O4-based catalyst with controllable properties and good dispersity was constructed utilizing zeolitic imidazolate frameworks (ZIFs) as a spatial support. Fe3O4 was attached onto the ZIFs surface via a facile strategy and the resulting Fe3O4/ZIFs material was applied as peroxymonosulfate catalyst for highly effective aflatoxin B1 (AFB1) degradation. The AFB1 degradation efficiency can be regulated by controlling the surface area and pore distribution of Fe3O4/ZIFs. Fe3O4/ZIFs (1:8) exhibited good catalytic ability within a wide pH range (3−8). A degradation efficiency of 97.4 % was achieved within 30 min, with 80.3 % degraded within the first 5 min, which was attributed to the ZIFs support structure, effectively improving the dispersity and mass transfer efficiency of Fe3O4. O2·− and 1O2 were the dominant active species in AFB1 degradation. Subsequently, the AFB1 degradation pathway was proposed. This study provides a promising and novel approach to the enhancement of catalytic activity for efficient AFB1 degradation.