Ammonium Persulfate Concentration Research Articles

Fabrication of Tailored Membranes with Special Surface Wettability Features for Highly Efficient Crude Oil-in-Water Emulsion Separation.

Treating oily wastewater streams such as produced water has a huge potential to resolve the issue of wastewater disposal and generate useful water for reuse. Among different techniques employed for oily wastewater (oil-in-water; O/W emulsion) treatment, membrane-based separation is advantageous owing to its lower energy consumption, recycling, ease of operation, and wider scope of tuning the active layer chemistry for enhanced performance. In line with the possibilities of enhancing the performance of the membranes for efficient O/W emulsion separation, the current work is designed to yield five different variants of polyaniline (PANI) active layers with special surface wettability features (superhyrophilic and underwater superoleophobic) on a ceramic alumina support. To achieve variants of PANI on ceramic alumina supports, emulsion polymerization was carried out, and different concentrations of initiator ammonium persulfate (APS) were applied to lead to PANI-A@Aluminum Oxide membrane, PANI-B@Aluminum Oxide membrane, PANI-C@Aluminum Oxide membrane, PANI-D@Aluminum Oxide membrane, and PANI-E@Aluminum Oxide membrane corresponding to 0.15, 0.25, 0.35, 0.5, and 1.0 M concentrations of initiator. The variation in initiator concentration resulted in different PANI growth patterns; hence, the resultant membranes showed different structural, physical, and performance features. Different characterization techniques including 1H NMR, SEM, FE-TEM, AFM, water contact angle, XRD, EDX, and ATR-FTIR confirmed a more uniform and continuous growth of PANI (PANI-B) using a 0.25 M initiator concentration. The resultant PANI-B@Aluminum Oxide membrane showed an excellent surfactant stabilized crude O/W emulsion separation reaching >99% with a permeate flux of 2154 L m-2 h-1 (LMH) at 4 bar using a 100 ppm surfactant stabilized crude oil-in-water emulsion. The fouling and cleaning cycles revealed that the membrane can be reused with a 70% recovery of the initial permeate flux.

Effect of nanofibrillated cellulose on alginate and chitosan film properties as potential barrier coatings for paper food packaging

This study aimed to test the utility of ammonium persulfate (APS) oxidised nanofibrillated cellulose (NFC) as an additive for chitosan- and alginate-based biopolymer films that could eventually be used as paper coatings for food packaging applications. Sodium alginate and chitosan were used as the base for the films. Various concentrations of APS oxidised NFC ranging from 0% to 10% were used as a reinforcing agent, resulting in six combinations of either alginate-NFC or chitosan-NFC composite films. Biofilms were tested for their mechanical properties (tensile strength and strain), grease barrier properties, air permeability, water vapour permeability, and degradation in the soil. Overall, when using the ammonium persulfate oxidation pretreatment method, the best performance of the films was estimated with the addition of 2.5% NFC.

Synthesis of Hierarchical Superhydrophilic/Superhydrophobic Nanostructured Surfaces for Oil/Water Separation

AbstractSurface wetting, the phenomenon where a liquid spreads or adheres to a solid surface, plays a crucial role in both natural and technological fields. This study focuses on elucidating the relationship between surface properties and wetting behavior, emphasizing the significance of hierarchical structures. A 3D hierarchical structure is created by controlling shape and size through electroplating and chemical reactions, adjusted by current intensity, ammonium persulfate, and ammonium hydroxide concentrations. This modification is achieved by modifying the surface's chemical properties. This control directly impacted the surface wetting properties, providing a means to regulate wetting behavior by altering surface structure. Through control of surface chemistry, a superhydrophilic surface is able to successfully create with a contact angle of 0° and a superhydrophobic surface with a contact angle of 171.3.

Modulation of optical band gap and conductivity of polyindoles with concentrations of FeCl3 and APS

Conducting Polyindoles (PIn-I and PIn-II) samples were synthesized via chemical oxidative polymerization in aqueous solution at a range of concentrations (0.3–0.9 M) of anhydrous FeCl3 and Ammonium persulfate (APS) at 25 ± 1 °C. Techniques such as FTIR spectrograph confirm various bond absorptions which give the identity of PIns, the morphology has been examined by SEM and XRD, while the thermal analysis of the prepared sample was studied by employing TGA-DSC. UV–Vis spectroscopy has been used to analyze complex optical parameters like band gap, refractive index, dielectric constant, and optical conductivity. The produced PIns exhibit absorption around 340–410 nm and results in the optical band gap in the range of 2.906 to 2.929 eV for the PIn-I series (with FeCl3) and 2.673 to 2.734 eV for the series of PIn-II (with APS). The samples synthesized employing 0.3 M FeCl3 and 0.9 M APS were found to have the lowest optical band gap energies of 2.906 eV and 2.673 eV, respectively. The experimental studies reveal that the optical conductivity, particle size, and crystallinity of PIn can be optimized with the different types of oxidants and their varying concentrations. The results conclude that the oxidizing agents having high reduction potential offer better electron transport and thus lower band gap and high optical conductivity. Due to the above-mentioned optical band gaps and high environmental stability, PIns have potential applications in optical devices.

Oxidized Cellulose Nanocrystals from Durian Peel Waste by Ammonium Persulfate Oxidation.

Cellulose nanocrystals (CNCs) have gained much attention due to their biodegradable, renewable, nontoxic, and inexpensive nanomaterials with some remarkable properties. In this study, cellulose nanocrystals from durian peel waste were isolated by chemical oxidation. This process involved two stages of a chemical process, namely, bleaching followed by oxidation of ammonium persulfate (APS). The impact of process parameters (APS concentrations and oxidation temperatures) on the oxidized CNC was assessed. The properties of CNC were investigated by attenuated total reflection-infrared (ATR-IR) spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), and transmission electron microscopy (TEM). ATR-IR results showed that the structure of cellulose did not change during APS oxidation. XRD results indicated that APS oxidation improved the crystallinity index by 103% due to the removal of the amorphous components. The resulting CNC was needlelike in shape and had an average width range of 5.00-7.81 nm, a length range of 114.52-126.83 nm, and an aspect ratio range of 16.76-24.20. From the TGA analysis, the thermal stability was found to increase with increasing oxidation temperature. The optimum conditions for a maximum crystallinity index and the highest thermal stability were obtained at 80°C oxidation with 1 M APS. Therefore, APS oxidation was a remarkable method for increasing the value of durian peel waste into high-value nanocellulose.

Large-Scale Preparation of Carboxylated Cellulose Nanocrystals and Their Application for Stabilizing Pickering Emulsions.

Cellulose nanocrystals (CNCs) with varied unique properties have been widely used in emulsions, nanocomposites, and membranes. However, conventional CNCs for industrial use were usually prepared through acid hydrolysis or heat-controlled methods with sulfuric acid. This most commonly used acid method generally suffers from low yields, poor thermal stability, and potential environmental pollution. Herein, we developed a high-efficiency and large-scale preparation strategy to produce carboxylated cellulose nanocrystals (Car-CNCs) via carboxymethylation-enhanced ammonium persulfate (APS) oxidation. After carboxymethylation, the wood fibers could form unique "balloon-like" structures with abundant exposed hydroxy groups, which facilitated exfoliating fibril bundles into individual nanocrystals during the APS oxidation process. The production process under controlled temperature, time period, and APS concentrations was optimized and the resultant Car-CNCs exhibited a typical structure with narrow diameter distributions. In particular, the final Car-CNCs exhibited excellent thermal stability (≈346.6 °C) and reached a maximum yield of 60.6%, superior to that of sulfated cellulose nanocrystals (Sul-CNCs) prepared by conventional acid hydrolysis. More importantly, compared to the common APS oxidation, our two-step collaborative process shortened the oxidation time from more than 16 h to only 30 min. Therefore, our high-efficiency method may pave the way for the up-scaled production of carboxylated nanocrystals. More importantly, Car-CNCs show potential for stabilizing Pickering emulsions that can withstand changeable environments, including heating, storage, and centrifugation, which is better than the conventional Sul-CNC-based emulsions.

Preparation and evaluation of acryloyl morpholine modified emulsion fracturing fluid thickener with high temperature resistance and salt resistance

AbstractTo prepare the thickener of fracturing fluid with temperature resistance, salt resistance and quick dissolution, an emulsion thickener (ASC) was synthesized by acrylamide, acrylic acid, 2‐acrylamide‐2‐methylpropanesulfonic acid, and acryloyl morpholine. The dissolution, salt resistance and drag reduction of ASC, and the viscoelasticity, temperature resistance and shear resistance and gel breaking properties of fracturing fluid formed by ASC and zirconium crosslinker were investigated. The results showed that the sticky time of ASC was less than 60 s and the drag reduction rate was 72.5% in 100,000 mg/L brine, showing that ASC had thickening ability in high salinity brine and satisfied the requirements of continuous fluid preparation on the fracturing process. The viscosity of ASC fracturing fluid was 98 mPa s after shearing at 200°C and 170 s−1 for 150 min when the salinity was 100,000 mg/L. When the ammonium persulfate concentration was 400 mg/L, the viscosity of the broken fluid was 4.0 mPa s. The temperature resistance, salt resistance and shear resistance of ASC emulsion fracturing fluid could be significantly improved by the introduction of acryloyl morpholine, ASC fracturing fluid had the characteristics of high elasticity and low viscosity, which could meet the application requirements under ultra‐high temperature reservoirs.

Preparation of Wool-g-Glycidyl Methacrylate with a Constructed –SH Groups/Ammonium Persulfate Redox System and Characterization

To explore suitable synthesis parameters of efficient graft copolymerization on wool, the disulfide bonds in wool chains were reduced to sulfhydryl groups by the treatment of thioglycolic acid to wool, and then wool-g-poly(glycidyl methacrylate) was prepared by graft copolymerization of wool with glycidyl methacrylate by building a redox system between sulfhydryl groups and ammonium persulfate. The wool-g-poly(glycidyl methacrylate) was characterized by the analyses of Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric and x-ray diffraction. Influences of molar concentrations of monomer and initiator as well as reaction temperature on grafting ratios were investigated. The experimental results showed that the sulfhydryl groups/ammonium persulfate redox system built could effectively initiate graft polymerization of lipophilic glycidyl methacrylate on the wool surface in an aqueous medium. The suitable process parameters of graft copolymerization were: 0.6 mmol/L molar concentration of glycidyl methacrylate, 3.0 mmol/L molar concentration of ammonium persulfate, and reaction temperature of 50 ℃. At the suitable parameters, the grafting ratio of wool-g-poly(glycidyl methacrylate) showed a maximum value of 195.8 %, indicating an efficient graft copolymerization was achieved. The copolymerization could reduce the degree of crystallinity of wool. The wool-g-poly(glycidyl methacrylate) had higher thermal stability than raw wool at a temperature of below 406 ℃ by performing the thermogravimetric analysis. Based on the results, we successfully built new sulfhydryl groups on the wool/ammonium persulfate redox system, prepared the wool-g-poly(glycidyl methacrylate), and this work will lay an important foundation for the application of wool-g-poly(glycidyl methacrylate) in the textile field.

Progressive Intercalation and Exfoliation of Clay in Polyaniline–Montmorillonite Clay Nanocomposites and Implication to Nanocomposite Impedance

Conducting polymers, such as polyaniline (PANi) and polypyrrole (PPy), and their nanocomposites, are desired in a wide range of applications, including supercapacitors, lithium ion battery, chemical sensors, biosensors, barrier thin films, and coatings, because of their interesting electrical and electrochemical properties. It is well known that the properties of polymer nanocomposites depend on their chemical structure, as well as their microstructure, yet scientists and engineers have not fully understood how to properly control the structure of polymer nanocomposites. In this study, it is shown that the structure of polyaniline–montmorillonite clay nanocomposites (PACN) can be controlled by varying the ammonium persulfate (APS, oxidant) concentration. The structure of polyaniline and Cloisite 20A clay are, therefore, profoundly affected during the synthesis of PACN nanocomposites. The thickness of polyaniline crystal decreased with increasing oxidant concentration. Fourier transform infrared spectroscopy (FTIR) was used to determine the oxidation state of PANi. The structure of the nanocomposites was studied by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), wide-angle X-ray diffraction (WAXD), wide-angle X-ray scattering (WAXS), and small-angle X-ray scattering (SAXS). Electrochemical impedance spectroscopy (EIS) analysis of polyimide nanocomposite coatings containing PACN with varying levels of intercalation and exfoliation indicate that the coating impedance decreased with exposure time for some coating systems. It is shown that polyimide–PACN nanocomposite coating containing highly intercalated clay was more durable and maintained constant impedance after 20 weeks of exposure in a corrosive medium.

Isolation and Properties of Cellulose Nanocrystals Fabricated by Ammonium Persulfate Oxidation from Sansevieria trifasciata Fibers

Cellulose nanocrystals (CNCs) were successfully prepared from Sansevieria trifasciata fibers (STFs) via ammonium persulfate (APS) oxidation in this study. The influences of the APS concentration (1.1, 1.5, and 1.9 M) and oxidation temperature (60, 70, and 80 °C) on the characteristics of CNCs were studied. The resulting CNCs were characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), transmission electron microscopy (TEM), and thermogravimetric analysis (TGA). The TEM observations revealed that the rod-like CNCs possessed average length and diameter ranges of 96 to 211 nm and 5 to 13 nm, respectively, which led to an aspect ratio range of 16–19. The optimum conditions for maximum crystallinity were achieved at an oxidation temperature of 70 °C, a reaction time of 16 h, and an APS concentration of 1.5 M. All CNCs exhibited lower thermal stability compared to the STFs. The CNCs could be produced from the STFs through the APS oxidation process and showed potential as nanocomposite reinforcement materials.

Enhanced photocatalytic performance and persulfate activation properties by BiOBr supported waste rock wool fibers under LED blue light

An advanced oxidation process was developed under LED blue light (BL) photocatalysis in the presence of ammonium persulfate (APS) for effective degradation of tetracycline (TC) from contaminated water. Waste rock wool (RW) fibers modified with BiOBr nano-sheet (BiOBr/RW) using impregnation combined with hydrolysis process, was employed to activate APS to produce reactive radicals under LED BL irradiation (BiOBr/RW+APS+BL system). The influence factors on TC degradation were investigated. Besides, the radical scavengers such as methanol (MA), phenol (PN), tertbutanoland (TBA) and ethylene diamine tetraacetate (EDTA-2Na) combined electron spin paramagnetic resonance (EPR) analysis were used to confirm the reactive radical species. The developed BiOBr/RW+APS+BL system exhibited much higher TC removal efficiency compared with other reported oxidation systems. In addition, the BiOBr/RW could directly activate the APS leading to degrade TC in the darkness. A maximum TC removal of 84.3% was achieved under the optimal conditions such as initial concentration of APS 100 mg/L, BiOBr/RW dosage 0.1 g/L and pH 7 in 80 min. Results also ascertained that h+, •OH and •SO4- over surface of the BiOBr/RW were the primary active chemical species in the BiOBr/RW+APS+BL system. It was found that the •OH and •SO4- in solution play critical roles for degradation of TC on the BiOBr/RW+APS system in dark. Finally, the repeated experiments indicated the excellent stability, photocatalytic ability and cycling property of BiOBr/RW.

Ammonium persulfate treatment on carbohydrate polymers and lignin of wood improved sound absorption capacity.

The rational design of sound absorption boards made of wood materials is an exciting area of research. This article describes a simple and inexpensive method to increase the sound absorptions capacity of Malas hardwood (Homalium foetidum Roxb.) using ammonium persulfate treatment. The reaction parameters such as the concentration of ammonium persulfate and reaction time were optimized. The results of X-ray photoelectron spectroscopy, X-ray diffraction, attenuated total reflectance-Fourier transforms infrared spectroscopy, and scanning electron microscopy demonstrated that ammonium persulfate could significantly affect carbohydrate polymers and lignin of wood by improving oxygen functionalities. The quantitative analysis of carbohydrate polymers (hemicellulose and cellulose) and lignin were evaluated. These changes in carbohydrate polymers and lignin enhanced the air permeability (83.6%) and average sound absorption coefficient at each frequency range 500-1000Hz (2.6%), 1000-2000Hz (4.9%), 2000-4000Hz (17.4%), and overall 500-6400Hz (20.8%) compared to the control samples. These results could be beneficial for new research and wood-based sound absorption materials to regulate the acoustic environment in houses.

One-step extraction of cellulose nanocrystals from high lignin biomass through ammonium persulfate oxidation method

Cellulose nanocrystals (CNCs) are one of the emerging nanomaterials that have several interesting and unique properties such as high mechanical strength (Young modulus of 100–140 GPa), low density (1.6 g cm−3), and large surface area (150–250 m2 g−1) that are advantageous in a myriad of applications. In this study, CNCs were successfully prepared from empty fruit bunch (EFB), an agricultural waste from palm oil, using a one-step extraction method using ammonium persulfate oxidation. EFB was directly reacted with ammonium persulfate (APS) at different concentrations (1.0; 1.5 and 2.0 M) at 60 °C for 15 h to undergo the oxidation. The oxidised EFB samples were characterised by dynamic light scattering (DLS), x-ray diffraction (XRD), transmission electron microscope (TEM), Fourier-transform infrared (FTIR), and thermogravimetric analysis (TGA). The FTIR result shows that lignin and hemicellulose in the EFB were successfully removed using one-step extraction method with minimum APS concentration of 1.5 M. The CNCs product has a crystallinity index of 64.1%, a crystallite size of 3.86 nm, and (0 0 2) plane lattice spacing of 3.95 Å. Based on the lattice spacing calculation of all samples, the crystalline structure of cellulose does not change during the oxidation process. The proposed one-step extraction method has been proven to produce the CNCs from EFB with a crystallinity index of 64.1%, a length of 275.9 ± 82.8 nm, and a diameter of 25 ± 5.3 nm.

Formation of hierarchical NiFe Prussian blue analogues/Prussian blue on nickel foam for superior water oxidation

A series of NiFe Prussian blue analogues (PBAs)/Prussian blue (PB) nanocubes (NizFe-PB-x-y) on nickel foam were synthesized using a one-pot redox reaction and deposition strategy. The growth and particle size of NizFe-PB-x-y can be adjusted by changing the ammonium persulfate concentration (x) and hydrothermal temperature (y). To explore the role of individual reactants, three other catalysts were synthesized by changing the reaction conditions, including sea urchin-like FeOOH, Fe4[Fe(CN)6]3 cube, and NiFe PBA/FeOOH grain. During the reaction, ammonium persulfate may acted as a promoter and oxidant, sodium citrate as a reducing agent and morphological regulator, potassium ferricyanide as a single iron source, and nickel foam as a nickel source and substrate. More importantly, compared with other catalysts, the electrochemically activated Ni0.59Fe-PB-3-110 catalyst manifests the most outstanding catalytic activity in 1.0 M KOH electrolyte solution, with current densities of 50 and 800 mA cm−2, requiring only 230 and 305 mV overpotential, respectively. It is anticipated that the novel strategy will not only contribute to the design and development of hierarchical three-dimensional PB or PBAs supported by conductive substrates, but also further promote their applications in the field of electrocatalysis and energy storage.

Characteristics of nanocellulose crystals from balsa and kapok fibers at different ammonium persulfate concentrations

Characteristics of nanocellulose crystals from balsa and kapok fibers at different ammonium persulfate concentrations

Construction of graphene based photocatalysts for photocatalytic degradation of organic pollutant and modeling using artificial intelligence techniques

In this study, graphene based photocatalysts containing different silver doped titanium dioxide nanosheets (Ag-TNs-RGO) were fabricated. The successful reduction of graphene oxide (as support) was confirmed by Raman analysis. Also, powder X-ray diffraction (PXRD) analysis confirmed pure anatase phase of the obtained TiO2 nanosheets as well as Raman spectroscopy. The efficiency of Ag-TNs-RGO (0.038) for degradation of tetracycline (TC) antibiotic as an organic pollutant model under visible light and UV irradiation for 180 min was evaluated 48.57% and 77.84%, respectively. Artificial neural network (ANN) and adaptive neuro-fuzzy inference system (ANFIS) were used to describe the photocatalytic degradation process. Five degradation variables (catalyst dosage, initial concentration of TC, silver nitrate content, visible light irradiation time and ammonium persulfate (APS) concentration) were defined as the input variables of the models and the removal percentage of TC was the output. Sensitivity analysis was performed by weights method on the outputs of models.

Fabrication and Characterization of Polyaniline on Cotton Fabric via Two-Step in-situ Polymerization

The conducting polyaniline (PANI) was fabricated with hydrochloric acid and ammonium persulfate (APS) as dopant and oxidant respectively on cotton fabric via two-step in-situ polymerization process. Effect of APS concentration on conductivity, EMI shielding effectiveness (SE) and weight gain rate of PANI coated on cotton fabric were investigated. FTIR spectra, crystallinity and morphology of resultant substrate were analyzed via attenuated total reflectance method (ATR), X-Ray diffraction (XRD), scanning electrical microscope (SEM) and optical microscope respectively. The result indicated that the optimum conductivity (0.5 kΩ) and SE (60%) of coated substrate were obtained at the concentration of APS 0.2 mol/L, and PANI had good combination with cotton substrate. The crystal structure of cotton fiber doped with PANI had no change with the increase of its crystallinity (up to (74.46±1)%).

Robust bio-inspired superhydrophilic and underwater superoleophobic membranes for simultaneously fast water and oil recovery

Designing a stable and uniform hydrophilic material for separation of oil and water is strongly desired for sustainable management of oily wastewater. Herein, a stable and uniform bio-inspired coating onto the non-woven fabric substrate with superhydrophilicity and underwater superoleophobicity via rapid co-deposition of dopamine and polyethylenimine was demonstrated. Ammonium persulfate outperformed other oxidants (e.g., Cu2+-H2O2 and NaIO4) to rapidly trigger the co-deposition of dopamine and polyethylenimine for homogeneous superhydrophilic and underwater superoleophobic surface engineering. Furthermore, the co-deposition conditions, i.e., concentration of ammonium persulfate and exposure duration, have a positive dependence on the hydrophilicity and underwater oleophobicity of the coated fabric membranes. Specifically, the superhydrophilicity and underwater superoleophobicity (underwater oil contact angle of 165.4 ± 1.1°, sliding angle of 2.5 ± 0.5°) can be obtained for the coated fabric membranes at the optimal co-deposition condition (i.e., 28.5 mmol L−1 persulfate and coating duration of 7 h), showing a great potential in gravitational oil-water separation (permeation flux >115,000 L m−2 h−1; oil rejection >99.2%). Integrating with a superhydrophobic copper mesh, the oil-water mixed solution can be continuously and sufficiently separated, realizing simultaneous recovery of pure oil and water from oily wastewater. In addition, the bio-inspired coating displays a strong long-term chemical robustness and stability in extreme environments (i.e., acidic/alkaline solutions and oils). The study provides a facile, cost-effective and practical strategy in constructing superhydrophilic and underwater superoleophobic interfaces for sustainable treatment of oily wastewater.

Isolation and characterization of cellulose nanocrystals (CNCs) from industrial denim waste using ammonium persulfate

This research focuses on extraction of cellulose nanocrystals (CNCs) from industrial denim waste using oxidation method in a batch reactor by varying pretreatment methods, ammonium persulfate (APS) concentrations, and reaction times. This oxidation method shows beneficial when compared to the conventional hydrolysis methods in term of less corrosive and shorter extraction time. Two-step method was developed instead of using one-step only to judge the beneficial of alkali pretreatment. The raw material of industrial denim waste was prepared in the form of powder with particle size range of 80–120 mesh. This raw material was characterized using Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Thermogravimetric analysis (TGA). The CNCs products were characterized using Dynamic Light Scattering (DLS), Transmission Electron Microscopy (TEM), and X-ray Diffraction (XRD) for confirming the particle size distribution, morphology, and crystallinity, respectively. The results showed that increasing the reaction time from 5 h to 15 h decreased the particle size of CNCs and increased the crystallinity of CNCs, while increasing the APS concentration from 1 to 1.5 M decreased the particle size of CNCs and the crystallinity of CNCs. The optimum operating conditions were obtained that the reaction time was 15 h at 60 °C and 1.5 M APS concentration, which produced the rod like morphology of CNCs with 76.14 ± 8.56 nm length, 18.10 ± 3.54 diameter and the crystallinity of 83 %. From the DLS and XRD characterizations, it was confirmed that the CNCs from denim waste could be produced through the oxidation method using APS.

Conductive fabric patch with controllable porous structure and elastic properties for tissue engineering applications

Cardiovascular disease has gradually become a kind of lifestyle disease in modern society, and the construction of an engineered cardiac patch (ECP) through tissue engineering means is a promising treatment for myocardial infarction in clinical practice. In this study, polyamide fabric was used as scaffold material. Hydrochloric acid, aniline (AN), and ammonium persulfate (APS) were used as main modification reagents. The knitted ECP was constructed by straight in situ polymerization. Respectively, by using a single variable method to change the concentration of APS and base fabric knit method, through a series of tests analyzing the effect of APS concentration and knitting methods on ECP properties, the optimal preparation of ECP was summarized: under the experimental conditions of hydrochloric acid, AN, and APS solution concentrations of 0.7 mol L−1, the ECP showed the best performance for potential cardiac therapy application: the conductivity can reach 2.63–2.79 S m−1, porosity is 60–62%, average pore size is in the range of 16.4–21.65 μm, and elongation is up to 181.43%, showing superior properties of textiles cardiac patch.