Synthesis Of α-Fe2O3 Nanoparticles Research Articles

Oxygen vacancies enhanced photo-fenton-like catalytic degradation of rhodamine B by electrochemical synthesized α-Fe2O3 nanoparticles

Hematite is widely used as a catalyst in a photo-Fenton-like process for the oxidation of dyes. We report on the electrochemical synthesis of α-Fe2O3 nanoparticles. The structure, morphology, chemical composition, and surface chemical state of the catalyst, as well as its optical and magnetic properties, were thoroughly characterized by scanning electron microscopy, X-ray diffraction spectroscopy (XRD), shift combination scattering spectroscopy, X-ray photoelectron spectroscopy (XPS), and vibrating sample magnetometry (VSM). It was found that the crystal size was 63.9 nm. It was shown that the presence of Fe2+ on the surface was due to oxygen vacancies rather than impurity phases. The optical bandgap was determined to be 1.87 eV. Nanoparticles exhibit weak ferromagnetic behavior with a magnetization of 1.09 emu/g at maximum applied magnetic field 1 kOe. The catalytic activity in the photo-Fenton-like process for the degradation of Rhodamine B (RhB) dye was investigated, and the effect of working parameters, including H2O2 concentration, catalyst concentration, and RhB concentration, on the degradation efficiency was studied. The maximum degradation rate was 99.15 % in 12 min under optimal conditions. The catalyst showed long-term stability over 5 repeated cycles.

A Facile Method for Synthesis of α-Fe2O3 Nanoparticles and Assessment of Their Characterization

Recently, magnetic nanomaterials have gained much attention from researchers because of their various unique physical and chemical properties and usage in a wide range of technological aspects. In this study, the synthesis of α-Fe2O3 nanoparticles was performed by a simple co-precipitation method. The synthesis of α-Fe2O3 nanoparticles was carried out by mixing ferric nitrate and oxalic acid in an aqueous solution followed by evaporation, resulting in the solution’s dried form. The synthesized nanoparticles were analyzed by XRD, FTIR, Raman spectra, SEM-EDX, DSC, BET, and Zeta potential for detailed examination of the morphology, structure, and other physicochemical characteristics. The XRD results confirmed that the nanoparticles formed were Hematite (α-Fe2O3) after the evaluation of obtained spectra compared to the Joint Committee on Powder Diffraction Standards Database (JCPDS). The FTIR spectra showed various bonds among functional groups, O-H bending, Fe-O group, and within-vibration bonds. The phase study of the α-Fe2O3 nanoparticles was performed by using Raman spectroscopy. SEM depicted a sphere-like or rhombohedral (hexagonal) structure, and the EDX spectrum confirmed the peaks of iron and oxygen.

Eco-benign synthesis of α-Fe2O3 mediated Trachyspermum ammi: A new insight to photocatalytic and bio-medical applications

Environmental contaminants are a golabl concern, and even at very low quantities, they can be extremely harmful to the aquatic ecosystem. Microbial resistance and photocatalysis are popular strategies for removing hazardous substances from the environment. The present study developed the green synthesis of α-Fe2O3 nanoparticles from Trachyspermum ammi plant leaf extract. The crystalline and structural stability of green synthesized α-Fe2O3 nanoparticles were studied by XRD. The surface morphology was investigated by TEM and FESEM equipped with EDX analysis. Metal, oxygen bond (Fe-O) and their interaction on the surfaces and their valency were explored from FTIR and XPS spectra. Optical orientations and electron movements were revealed from UV-DRS analysis. Visible light photocatalytic methylene blue degradation confirmed the largest surface area, rate of recombination, photo-excited charge carriers, photo-sensitivity range and radical generations of α-Fe2O3 nanoparticles. The green synthesized α-Fe2O3 nanoparticles bacterial susceptibility was examined by the well diffusion method using (10, 20, 50, 100) µg/L concentration of nanoparticles. The antibacterial activity enhanced with the higher concentration of α-Fe2O3 (100 µg/L). The gram-negative bacteria of E.coli has high bacterial susceptibility on α-Fe2O3 nanoparticles. The reactive oxygen species and OH radicals of α-Fe2O3 nanoparticles are demonstrated better resistivity against bacterial strains. The present study, therefore, suggested that the green synthesis would be an appropriate approach to synthesize the nanomaterials and confirming their suitability for use in industrial wastewater treatment and biomedical applications.

Preparation and characterization of the Br-HPI complex of Fe(III) and their applications for dye solar cell by synthesized α-Fe2O3 nanoparticles in a novel method

The derivative of five member heterocyclic ligand containing imidazole rings 4-bromo-2-(4,5-diphenyl-1H-imidazol-2-yl) phenol [Br-HPI] and their complex with Fe(III) are reported. This ligand was characterized by elemental analysis, FT-IR and 1H NMR spectroscopy. The solid complex was characterized by IR spectra, molar conductivity and magnetic moment. The results suggest that the metal is bonded to the ligand through the phenolic oxygen and the pyridine nitrogen forming chelates with (1:2) (metal: ligand) stoichiometry, and the octahedral geometry for the complex. The complex has photolysis by novel method that using UV. cell to synthesis α-Fe2O3 nanoparticles. The nanoparticles have been indicate by transmission electron microscopy (TEM), X-ray diffraction (XRD), scanning electron microscopy (SEM), with average particles size in the range 11 to 25 nm. The α-Fe2O3 nanoparticles have been applied a photo anode to fabrication dye solar cell (ITO\α-Fe2O3 Nps\rodamine 6G dye\Ag nanofilme\ITO) with energy efficiency conversion about 2.5 %.

α-Fe2O3 thin film for toluene detection of highly sensitive and selective at room temperature

Fe2O3 nano particle were prepared by simple hydrothermal method and coated on IDT (inter dijital transduser) by spin coating for sensor measurement. The synthesized α-Fe2O3 nano particles were characterized by XRD and SEM. XRD pattern and SEM micrographs for as-deposited thin film sample consists of pure hexagonal α-Fe2O3 nano structure. The sensitivity, response time and recovery time of α-Fe2O3 coated thin films were studied for different gases such as methanol, butanol, ethanol, IPA, benzene, xylene, and toluene. It is shown that Fe2O3 based sensor obviously sensitive to toluene from other gases at room temperature.

Green synthesis of iron oxide nanoparticles using Hibiscus plant extract

In the present work, hematite (α-Fe2O3) nanoparticles (NPs) were synthesized by using a simple and facile green synthesis by using Hibiscus plant extract. The used solution is composed of plant extract and 0.1 M of iron chloride mixture. The nanoparticles are grown at ambient temperature. The prepared nanoparticles morphology, structure and composition were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and high-resolution transmission microscopy (HRTEM). The synthesized nanoparticles are formed by agglomeration of spherical and mono-disperse grains. XRD analysis reveals that the grains are polycrystalline with an average particle size of 20 nm. The calcinated nanoparticles contain small traces of maghemite and hydroxide. A vibrating sample magnetometer (VSM) was used for the nanoparticle magnetic properties determination. The finding reveals the superparamagnetic behaviour of the synthesized α-Fe2O3 nanoparticles owing to a saturated magnetization (Ms) of 0.96 emu/g, and low remnant magnetization Mr of 0.06 emu/g.

Investigation of optical, electrical and magnetic properties of hematite α-Fe2O3 nanoparticles via sol-gel and co-precipitation method

Hematite (α-Fe2O3) nanoparticles were synthesized using co-precipitation and sol–gel methods. X-ray diffraction (XRD) technique was employed to structural properties of the synthesized α-Fe2O3 nanoparticles and SEM(scanning electron microscopy) was used to analyze the morphological structure. The crystallite size is determined Sample-A (33 nm) and Sample-B (29 nm) by Scherer formula, while Volume of unit cell is measured 301.8 x106 pm3 and 301.8 x106 pm3 respectively. The X-ray density is found in the Sample-A 5.27 (g/cm3) and Sample-B 5.26 (g/cm3). The optical band gap energy measured 2.4–2.6 eV, calculated by the Tauc plot with the optical absorption data. The electrical characteristics of the samples were examined by using two probe methods and the possible impact of temperature on the electrical properties of α-Fe2O3 was investigated. Dielectric analysis reveals an inverse relationship between the permittivity of α-Fe2O3 samples and frequency that fulfills the Maxwell Wagner Model. The magnetic parameters were observed Ms = 9.29 emu, 1.72 emu and coercivity Hc = 1404(G) as well as Hc = 1040(G). The observed values of these factors indicate that the materials can be employed in a variety of applications such as catalysis, sensors and water purification.

On the Synthesis of α-Fe2O3 Nanoparticles by the Method of Chemical Deposition to Obtain a Magnetically Hard Nd–Fe–B Alloy

On the Synthesis of α-Fe2O3 Nanoparticles by the Method of Chemical Deposition to Obtain a Magnetically Hard Nd–Fe–B Alloy

Synthesis of hematite (α-Fe2O3) nanoparticles by a liquid-phase microplasma-assisted electrochemical process for photocatalytic activity

Dye contamination is becoming a more significant environmental challenge with the development of the textile industry. Scientists from all over the world are working hard to create new, more efficient ways to reduce environmental pollution through environmentally friendly synthesis techniques. In this regard, hematite (α-Fe2O3) nanoparticles have been synthesized by the novel, quick, cheap, and environmentally safe microplasma technique for the photodegradation of rhodamine-B under direct Sunlight. Thus, the synthesized α-Fe2O3 nanoparticles were characterized by various characterization techniques such as x-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), and ultraviolet-visible spectroscopy (UV–vis spectroscopy). The structural and optical properties were found to vary with changing precursor concentrations. We measured the photocatalytic decolorization efficiency of synthesized hematite (α-Fe2O3) nanoparticles for rhodamine-B dye under direct Sunlight. It was found that α-Fe2O3 nanoparticles exhibited a decolorization capability with 73.75% decolorization of the dye at the rate of 0.04305 g.mg−1.min−1 after 100 min of irradiation, exhibiting excellent performance to remove organic contaminants from wastewater.

Green Synthesis of Α-Fe2O3 from Ginger Extract Enhanced the Potential Antioxidant Activity Against DPPH

Synthesis of nano-oxides in an easy and environmentally friendly way using simple and green materials is one of the hot interests of sustainable chemistry for lots of pharmaceutical and medical applications. Herein, we synthesized α-Fe2O3 nanoparticles (α-Fe2O3 NPs) using ginger extract after that calcination at 400 C° for 4 h. The prepared α-Fe2O3 nanoparticles were examined using ultraviolet-visible reflection spectroscopy (UV-VIS), Fourier Transform Infrared Spectroscopy (FTIR), photoluminescence spectroscopy (PL), X-ray diffraction (XRD), field emission scanning microscopy (FE-SEM), energy-dispersive X-ray (EDX) spectroscopy, and zeta potential. After well characterizations, the potency of the prepared α-Fe2O3 nanoparticles to monitor some scavenging activity was explored against DPPH. Results revealed that PL intensity has one peak in the UV region between (480-490) nm of the spectrum depending on the geometric shape and size of the α-Fe2O3 NPS. The UV-visible spectra showed a peak at 296.0 nm, which represented the α-Fe2O3 NPs. The EDX micrograph confirmed pure oxide and the XRD pattern showed that the α-Fe2O3 NPs had an average crystal size (19.3) nm. SEM images of α-Fe2O3 NPs revealed spherical, rod, and irregular shapes and sizes ranging from (15 to 60) nm. Moreover, the antioxidant activity of α-Fe2O3 NPs against DPPH showed 51.8% free radical scavenging ability at 360 μg/mL, which approved good evidence of the antioxidant activity of α-Fe2O3 NPs.

Efficient photocatalytic degradation of methyl orange dye using facilely synthesized α-Fe2O3 nanoparticles

In this paper, α-Fe2O3 nanoparticles were fabricated via the combustion process using glucose and sucrose as organic fuels for the first time. The fabricated products were characterized using XRD, FT-IR, HR-TEM, and UV–vis spectrophotometer. The average crystallite size of the α-Fe2O3 samples, which were synthesized using glucose and sucrose fuels, is 27.25 and 6.13 nm, respectively. The HR-TEM images confirmed the presence of spherical and irregular shapes with an average diameter of 31.92 and 8.83 nm for the α-Fe2O3 samples, which were synthesized using glucose and sucrose fuels, respectively. The optical energy gap of the α-Fe2O3 samples, which were synthesized using glucose and sucrose fuels, is 2.00 and 2.48 eV, respectively. Additionally, the synthesized α-Fe2O3 samples were employed as a photocatalyst for the degradation of methyl orange dye under UV irradiations in the absence and presence of hydrogen peroxide. The optimum pH, irradiation time, and dose of α-Fe2O3 that achieved the highest degradation efficiency in the presence of hydrogen peroxide (82.17 % in the case of using an α-Fe2O3 sample which was synthesized using glucose or 95.31 % in the case of using an α-Fe2O3 sample which was synthesized using sucrose) are 3, 100 min, and 0.05 g, respectively.

Synthesis of α-Fe2O3 nanoparticles from soft magnetic FeSiAl alloy cores of spent printed circuit boards and their application in visible-light-driven degradation of methylene blue dye

This study aims at 3R recovery, reuse, and recycling of metals from spent printed circuit boards (PCBs). Here, soft magnetic FeSiAl alloy cores of spent PCBs were used to synthesize α-Fe2O3 nanoparticles (NPs) for visible-light-driven degradation of methylene blue (MB) dye. The α-Fe2O3 NPs were synthesized by dissolving FeSiAl in a mixture of mild organic acids such as citric acid and ascorbic acid. The α-Fe2O3 NPs were characterized by powder XRD, TG-DSC, FESEM-EDX, HRTEM, UV–Vis DRS, and BET isotherm. The synthesized α-Fe2O3 NPs were flat spindle shaped and a few were oval with a particle size between 20 and 30 nm. Under visible light irradiation, the α-Fe2O3 NPs showed high efficiency for the degradation of MB dye in the presence of H2O2. To get optimum conditions, various experiments such as catalyst dosage, volume of H2O2, [MB], and nature of light were studied. Thus, it can be proposed that the present study is simple, environmentally benign, and highly efficient for the synthesis of α-Fe2O3 NPs and subsequent degradation of MB dye.

Synthesis and characterization of α-Fe2O3 nanoparticles showing potential applications for sensing quaternary ammonium vapor at room temperature

P-type and n-type metal oxide semiconductors are widely used in the manufacture of gas sensing materials, due to their excellent electronic, electrical and electrocatalytic properties. Hematite (α-Fe2O3) compound has been reported as a promising material for sensing broad types of gases, due to its affordability, good stability and semiconducting properties. In the present work, the efficient and easy-to-implement sol-gel method has been used to synthesize α-Fe2O3 nanoparticles (NPs). The TGA-DSC characterizations of the precursor gel provided information about the phase transformation temperature and the mass percentage of the hematite NPs. X-ray diffraction, transmission electron microscopy and x-ray photoelectron spectroscopy data analyses indicated the formation of two iron oxide phases (hematite and magnetite) when the NPs are subjected to thermal treatment at 400 °C. Meanwhile, only the hematite phase was determined for thermal annealing above 500 °C up to 800 °C. Besides, the crystallite size shows an increasing trend with the thermal annealing and no defined morphology. A clear reduction of surface defects, associated with oxygen vacancies was also evidenced when the annealing temperature was increased, resulting in changes on the electrical properties of hematite NPs. Resistive gas-sensing tests were carried out using hematite NPs + glycerin paste, to detect quaternary ammonium compounds. Room-temperature high sensitivity values (S r ∼ 4) have been obtained during the detection of ∼1 mM quaternary ammonium compounds vapor. The dependence of the sensitivity on the particle size, the mass ratio of NPs with respect to the organic ligand, changes in the dielectric properties, and the electrical conduction mechanism of gas sensing was discussed.

Synthesis of α-Fe2O3 Nanoparticles By Photolysis Method For Novel Dye-sensitized Solar Cell

The dye-sensitized solar cell (DSSC) is a cost-effective and simple-to-implement technology for future energy generation. It has a comparable power conversion efficiency (PCE) to traditional silicon solar cells while having lower material and production costs. α-Fe2O3 nanoparticles were synthesized by photo irradiation method using complexes solution of iron. The synthesized nanoparticles are characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and Uv.visable spectroscopy. Results show that nanoparticles have a uniform rhombohedral shape with an 11 to 29 nm average size. The hematite nanoparticles were applied to fabricate a novel Dye solar cell, with an energy conversion efficiency of about 2.5 % by (ITO/ α-Fe2O3 Nps/ Dye (Rhodamine 6 G) /iodine / Ag film / ITO).

Optimizing treatment of alcohol vinasse using a combination of advanced oxidation with porous α-Fe2O3 nanoparticles and coagulation-flocculation

This study utilizes a novel method, namely the combination of advanced oxidation processes with synthesized highly porous α-Fe2O3 nanoparticles and coagulation-flocculation with polyacrylamide, to investigate the effects on COD removal in alcohol vinasse. Highly porous α-Fe2O3 nanoparticles were prepared via a chemical precipitation technique. The characteristic of the synthesized α-Fe2O3 nanoparticles were determined by FT-IR, Raman spectroscopy, XRD, SEM, and N2 adsorption-desorption isotherms. The effect of different α-Fe2O3 nanoparticles loading for chemical oxygen demand (COD) removal efficiency was investigated. The results revealed that at α-Fe2O3 nanoparticle dose of 3000 ppm had the highest COD removal for vinasse. Then, central composite design (CCD) was used to optimize the operating variables such as pH, time, oxidant dosage, and coagulant dosage, and their optimum values were determined to be pH:7.36, 90 min, 17.89 wt% oxidant dosage, and 1.6 wt% coagulant dosage, to achieve a high COD removal efficiency in 70 ℃ for alcohol vinasse (98.64%). Based on optimal conditions, the porous α-Fe2O3 nanoparticles possess superior catalytic activity in the advanced oxidation process compared to other treating methods. Also, the mechanism of the catalytic oxidation reaction is evaluated.

Effect of phosphate ions on the formation of iron oxide/hydroxide as a stabilizer

Hematite (α-Fe2O3) nanoparticles were synthesized using a facile precipitation method under mild conditions by adding phosphate anions (PO43−). The solid-state phase transformation of α-Fe2O3 nanoparticles follows dehydration and internal rearrangement of ferrihydrite initially precipitated at a high pH, while PO43− ions acted as a stabilizer for preventing the dissolution of ferrihydrite. This phase transformation resulted in tiny spherical α-Fe2O3 nanoparticles with a size of approximately 5 ​nm, which is similar to that of the initial ferrihydrite. Conversely, acicular goethite (α-FeOOH) nanoparticles were formed without PO43− ions by dissolution and recrystallization of ferrihydrite. Furthermore, anions such as sulfate (SO42−) and chloride (Cl−) had no significant effect on the α-Fe2O3 formation due to their low Lewis basicity, resulting in an acicular α-FeOOH structure. These results extend the possibility to synthesize α-Fe2O3 nanoparticles, which could have various practical applications.

UV-Irradiation synthesized α-Fe2O3 nanoparticles based dye-sensitized solar cells

Nanoparticles are commonly used in various fields, including environmental science, analytical chemistry, agriculture, medicine, and energy. This is because of the unique properties of NPs and the innovation they provide to such applications. Because of their physical properties and technological potential, nanoparticles have gotten a lot of attention. In this study, iron oxide nanoparticles (α-Fe2O3 NPs) via a photolysis process utilizing UV lamb are described. The Nano-powder was studied using transmittance electron microscopy (TEM), X-ray diffraction (XRD), Energy Dispersive X-Ray Analysis (EDX), photoluminescence spectroscopy(PL), and field emission scanning electron microscope (FE-SEM). The particles size of the α-Fe2O3 NPs was to be 25 nm confirmed by FE-SEM. The X-ray diffraction analysis indicated no impurity peaks. PL spectroscopy was used to analyze the optical properties, and the energy gap was reported to be 2.49 eV. The broad bandgap is a semiconductor property that could be used in solar cell applications. We employed photochemically produced α-Fe2O3 NPs as a photo-anode in dye-sensitized solar cells. As counter electrodes, graphene oxide (GO) Nano-Sheets and graphene oxide-silver (GO-Ag) nanocomposite were used in this study. Cibacron brilliant red B is one of the colors utilized in the textile sector in Wasit Governorate. The rest is usually released as wastewater, which we used as a photosensitizer in our studies. The short-current density (Jsc), open-circuit voltage (Voc), efficiency (ɳ), and fill factor (FF) were measured using J-V curves, with efficiency ranging from 0.810 to 2.13 %. Eventually, the inclusion of Iron oxide nanoparticles combined with a cibacron brilliant red B dye has been shown to improve the performance of dye-sensitized solar cells.

Effects of precursors on the phase, magnetic and photocatalytic properties of nano Fe2O3 synthesized by low temperature calcination

By calcining ferric acetylacetonate (Fe(ACAC)3), Fe(NO3)3·9H2O and FeCl3·6H2O in air at 300 °C for 5 h, maghemite (γ-Fe2O3) nanoparticles, hematite (α-Fe2O3) nanoparticles and α-Fe2O3 nanoflakes were synthesized, respectively. The γ-Fe2O3 nanoparticles demonstrated far stronger magnetism (remanent magnetization (Mr) = 9.9 emu/g) than α-Fe2O3 nanoparticles (Mr = 0.06 emu/g) and nanoflakes (Mr = 0.13 emu/g) at room temperature. For photocatalytic reduction of aqueous Cr(VI) in the presence of visible-light and citric acid, the performance of different Fe2O3 samples was found to be in the order of α-Fe2O3 from FeCl3·6H2O > γ-Fe2O3 from Fe(ACAC)3 > hydrothermally synthesized α-Fe2O3 nanorods > α-Fe2O3 from Fe(NO3)3·9H2O > hydrothermally synthesized α-Fe2O3 nanoparticles. This work reveals the decisive role of precursors in the phase, magnetic and photocatalytic properties of low temperature calcination-synthesized Fe2O3. The phase-tunable synthesis of nano Fe2O3 by low temperature calcination of easily available precursors is simple, cost-effective and practical for large scale industrial production.

Photocatalytic degradation of fungicide difenoconazole via photo-Fento process usingα-Fe2O3

Nowadays, Human consumption leads to massive industrial sector manufacturing. Pesticides are one of the most toxic chemicals widely used to increase agricultural production. Those compounds present several threats to the environment. The photodegradation of difenoconazole (DFL) fungicide was carried out via Photo-Fenton process using synthesized α-Fe2O3 nanoparticles. The α-Fe2O3 was prepared using hydrothermal approach at 180 °C with ferric chloride and sodium hydroxide reagents. The sample was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM) and Raman analysis. Average crystallite size has been recorded to be 27 nm and the surface area was found to be SBet = 24.82 m2/g. DFL removal has been tested under divers systems: UV photolysis, UV/H2O2, UV/α-Fe2O3, Fenton and Photo-Fenton process. The kinetic has been monitored using High-Performance Liquid Chromatography (HPLC). All irradiation tests were achieved at 254 nm using UVC Lamp. An optimization of reaction conditions (pH, oxidant concentration, and catalyst dosage) were performed As a result, it was demonstrated that Photo-Fenton process (UV/α-Fe2O3/H2O2) as most effective for DFL removal. The optimal catalyst dose of α-Fe2O3 for high removal rate is about 0.5 g/l at initial solution pH. The mineralization efficiency attained 83.67%. The oxidation kinetics of DFL was recorded to accord with the pseudo-first order kinetic model. Finally, a possible mechanism pathway was proposed based on detected intermediates using gas chromatography-mass spectrometry (GC-MS) analysis.

Orange G’nin Sulu Çözeltilerden Uzaklaştırılması için α-Fe2O3 Nanopartiküllerinin Adsorban Olarak Kullanılması; Adsorpsiyon, Kinetik ve Termodinamik Özellikleri

One of the most important sources of environmental pollution is dyestuff waste released to the environment by industrial wastewater. Orange G (OG), one of the dyes frequently used in the industry, was adsorbed with α-Fe2O3 nanoparticles synthesized by the hydrothermal method. The characterization of synthesized α-Fe2O3 nanoparticles was determined by SEM-EDS and XRD analysis. For adsorption studies, the effects of contact time, pH, initial dye concentration, adsorbent amount, and temperature were investigated. As a result of the experiments, the optimum equilibration time was defined as 180 minutes and the optimum pH value was determined as 6.5. It was found that the most suitable isotherm model for the equilibrium data obtained from the adsorption of OG on α-Fe2O3 nanoparticles was the Freundlich model and the most suitable kinetic model was the pseudo-second-order model. With the result of the Langmuir model, it was determined that the maximum single layer adsorption capacity was 334 mg/g. With the thermodynamic studies It was evaluated that the adsorption of OG to α-Fe2O3 nanoparticles was endothermic, physical adsorption occurred and the adsorption event occurred by itself. As a result, it was demonstrated that α-Fe2O3 nanoparticles have great potential for the removal of dyestuffs from wastewater released as industrial waste.