The efficacy of samarium loaded titanium dioxide (Sm:TiO2) for enhanced photocatalytic removal of rhodamine B dye in natural sunlight exposure

Mahmoud, Zaid H.; AL-Bayati, Reem Adham; Khadom, Anees A.

doi:10.1016/j.molstruc.2021.132267

Cited by 35 publications

(13 citation statements)

References 53 publications

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“…After that by adding 0.0005, 0.00075, 0.001 and 0.002 g of MIL-53(Fe), the removal percent of dye is 95.57%, 95.58%, 98.07% and 92.29%, respectively. With increasing catalyst dosage, the decolorization percentage increases because of increasing catalyst active sites for dye degradation (Ahmaruzzaman and Mishra, 2021; Bian et al , 2022; Mahmoodi, 2013b; Mahmoud et al , 2022) until a certain amount and after that, the removal percent of dye would decrease due to the agglomeration of catalyst particles and leads to unavailability of catalyst active site for absorbing UV photon. Among them, the catalyst with an amount of 0.001 g is opted as the optimum amount of catalyst for further investigation.…”

Section: Resultsmentioning

confidence: 99%

“…RR198 is an anionic dye. By decreasing the solution pH, surface of the catalyst got more positive charge therefore the amount of adsorbed anionic dye molecules on the catalyst increased and consequently dye degradation increase but with increasing pH, the surface of the catalyst got more negative charge so the adsorbed dye molecules on the catalyst surface decreased and dye degradation decreased (Ahmaruzzaman and Mishra, 2021; Bian et al , 2022; Mahmoodi, 2013b; Mahmoud et al , 2022). Thus, pH = 3 was used as an optimum solution pH for both catalysts.…”

Section: Resultsmentioning

confidence: 99%

“…Physical wastewater treatment is another method that consists of adsorption (Alam et al , 2022; Kamath et al , 2021; Mahmoodi et al , 2010a, 2010b, 2010c), coagulation, flocculation, ion exchange and membrane filtration [nanofiltration, ultrafiltration and reverse osmosis] (Hosseini et al , 2018; Wen et al , 2022) all of which are controlled by mass transfer mechanism and these methods need an excess process for removing accumulated dye from physical treatment (Adel et al , 2021; Hayati and Mahmoodi, 2012; Márquez et al , 2022; Nasr and Ali, 2022; Shelke et al , 2022). Among these methods, chemical processes (Oveisi et al , 2019) that consist of the process such as advanced oxidation process, Fenton, electrochemical degradation, ozonation and photocatalysis have an important effect on the pollutant treatment from wastewater (Ahmaruzzaman and Mishra, 2021; Bian et al , 2022; Mahmoud et al , 2022). Photocatalysis is the method that is accomplished by the energy of light.…”

Section: Introductionmentioning

confidence: 99%

“…The transferred electrons and remained hole cause an oxidation–reduction half-reactions. This process is the base of dye degradation (Ahmaruzzaman and Mishra, 2021; Bian et al , 2022; Mahmoud et al , 2022; Mahmoodi, 2013b). Among porous material development, metal-organic framework (MOF) has different essence due to its high porosity and thermal resistance.…”

Section: Introductionmentioning

confidence: 99%

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Photocatalytic degradation of dye (Reactive Red 198) and pharmaceutical (tetracycline) using MIL-53(Fe) and MIL-100(Fe): catalyst synthesis and pollutant degradation

Ahmadi

Mahmoodi²,

Kazemini³

et al. 2022

PRT

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Purpose Environmental issues and lack of drinking water have forced researchers to find some alternatives to wastewater treatment. Because dyes are used in a variety of industrial applications such as textile and pharmaceutical, wastewater of these factories leads to several environmental problems. Using catalysis under ultraviolet-irradiation (photocatalysis) is one of the cases that is used in wastewater treatment. The purpose of this work is the photocatalytic degradation of dye (Reactive Red 198) and pharmaceutical (tetracycline) using MIL-53(Fe) and MIL-100(Fe). Design/methodology/approach In this work, Reactive Red 198 (RR198), an anionic dye and tetracycline as a pharmaceutical are tested with two catalysts, MIL-53(Fe) and MIL-100(Fe). Catalyst synthesis method and characterization were discussed by X-ray diffraction, scanning electron microscopy and Fourier Transform Infrared analyses, and their results are described in detail. Findings Dye concentration varies among 15, 20, 30 and 40 mg/L for MIL-100(Fe) for which the removal percent is 97%, 94%, 89% and 58% and for MIL-53(Fe), dye concentration increases from 20 to 40, 60 and 80 mg/L, the removal percent of which is 98%, 88%, 75% and 50%. Pharmaceutical degradation by MIL-53(Fe) and MIL-100(Fe) was 75% and 80%, respectively. Originality/value Photocatalytic degradation of RR198 and tetracycline using MIL-53(Fe) and MIL-100(Fe) was not studied in detail.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Photocatalytic degradation of dye (Reactive Red 198) and pharmaceutical (tetracycline) using MIL-53(Fe) and MIL-100(Fe): catalyst synthesis and pollutant degradation

Ahmadi

Mahmoodi²,

Kazemini³

et al. 2022

PRT

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show abstract

“…Potassium ferric oxalate K3[Fe(C2O4)3]3H2O was used as a source for synthesis of -Fe2O3 nanoparticles by photolysis method [16][17][18]. In a 125 W irradiation system, 1 g of ferric complex solution was irradiated for 30 min until a yellow precipitate of ferrous oxalate was formed.…”

Section: Preparation Of Magnetic -Fe2o3 Nanoparticlesmentioning

confidence: 99%

Gama-Fe2O3 silica-coated 2-(2-benzothiazolyl azo)-4-methoxyaniline for supercapacitive performance

Mahmoud

Mahmood

Al-Obaidi

et al. 2023

J. Electrochem. Sci. Eng.

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Magnetic g-Fe2O3@SiO2 core-shell nanocomposite was prepared using Stöber method and functionalized firstly by isopropenyloxytrimethylsilane as a coupling agent to enter active acetylacetone on the surface of nanoparticles, and after that by the synthesized azo dye ligand, 2-(2-benzothiazolyl azo)-4-methoxyaniline. In such a way, g-Fe2O3@SiO2-azo dye hybrid nanocomposite was formed. The structure of the synthesized azo dye was evidenced by physical and chemical analysis using melting point, Fourier-transform infrared spectroscopy (FT-IR), CHNS elemental analysis, proton nuclear magnetic resonance (HNMR) and gas chromatography mass spectrometry (GC-MS). The magnetic properties, structure, element composition and morphology characterization of prepared materials (g-Fe2O3, g-Fe2O3@SiO2, and g-Fe2O3@SiO2-azo dye) were investigated by vibrating sample magnetometer (VSM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron spectroscopy (TEM) and field electron scanning electron microscopy-energy dispersive X-ray-mapping techniques. The electrochemical performance of synthesized g-Fe2O3, g-Fe2O3@SiO2, and g-Fe2O3@SiO2-2-(2-benzothiazolyl azo)-4-methoxyaniline) electrodes were carried out using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS). It was shown that the finally prepared g-Fe2O3@SiO2-2-(2-benzothiazolyl azo)-4-methoxyaniline) hybrid nanocomposite electrode possesses good storage charge capability of 580 F g-1 at 1 A g-1.

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PolyVinyl alcohol and copper nickel co‐doped titania nanocomposite: Designing, characterization, optical properties, and catalytic application in the synthesis of aryl derivatives of benzothiazole and benzimidazole

Mahajan,

Gupta

2023

Applied Organom Chemis

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The paper examines the properties and potential applications of a nanocomposite material composed of polyvinyl alcohol (PVA) and copper nickel co‐doped titanium dioxide (Cu‐TiO2‐Ni). The material was synthesized using a simple precipitation process, and its properties were characterized using various analytical techniques, including powder X‐ray diffraction, Fourier transform infrared spectroscopy, thermogravimetry analysis, field emission scanning electron microscopy, and high‐resolution tunnelling electron microscopy; Brunauer–Emmett–Teller (BET) surface area was investigated. The results showed that the addition of Cu‐TiO2‐Ni to PVA improved the material's Ultraviolet–visible spectroscopy (UV) absorption properties. Additionally, the PVA/Cu‐TiO2‐Ni nanocomposite material exhibited potential for use in a range of applications, including catalysis. Its utility in synthesizing aryl derivatives of benzothiazole and benzimidazoles, which are crucial intermediates in the fine chemical, agrochemical, and pharmaceutical industries and material science, was evaluated. It was found to offer several advantages, including a quick reaction time, simple workup, and good to excellent isolated yields. These characteristics make this protocol both practical and economically intriguing.

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The efficacy of samarium loaded titanium dioxide (Sm:TiO2) for enhanced photocatalytic removal of rhodamine B dye in natural sunlight exposure

Cited by 35 publications

References 53 publications

Photocatalytic degradation of dye (Reactive Red 198) and pharmaceutical (tetracycline) using MIL-53(Fe) and MIL-100(Fe): catalyst synthesis and pollutant degradation

Photocatalytic degradation of dye (Reactive Red 198) and pharmaceutical (tetracycline) using MIL-53(Fe) and MIL-100(Fe): catalyst synthesis and pollutant degradation

Gama-Fe2O3 silica-coated 2-(2-benzothiazolyl azo)-4-methoxyaniline for supercapacitive performance

PolyVinyl alcohol and copper nickel co‐doped titania nanocomposite: Designing, characterization, optical properties, and catalytic application in the synthesis of aryl derivatives of benzothiazole and benzimidazole

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