Facile Synthesis of MgO/CuO and MgO/Cu3MgO4 Binary Nanocomposites as Promising Adsorbents for the Disposal of Zn(II) Ions

Abdelrahman, Ehab A.; Khalil, Mostafa M. H.; Algethami, Faisal K.; Khairy, Mohamed; Abou El-Reash, Yasmeen G.; Saad, Fawaz A.; Shah, Reem K.; Ammar, Alaa M.

doi:10.1007/s10904-023-02826-2

Cited by 11 publications

(5 citation statements)

References 61 publications

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“…where C o is the initial concentration of Congo red dye (mg/L), C e is the equilibrium concentration of Congo red dye (mg/L), M is the dry mass of the CaFe 2 O 4 adsorbent (g), and V is the volume of the Congo red dye solution (L). The point of zero charge (pH PZC ) for the CaFe 2 O 4 adsorbent was determined using the salt addition procedure [35]. A series of 50 mL conical flasks, each including 25 mL of a 0.01 M KNO 3 solution, were prepared so that the initial pH (pH i ) values ranged from 2.50 to 11.50.…”

Section: Removal Of Congo Red Dye From Aqueous Mediamentioning

confidence: 99%

Calcium Ferrite Nanoparticles: A Simple Synthesis Approach for the Effective Disposal of Congo Red Dye from Aqueous Environments

Al-Kadhi,

Al-Senani,

Algethami

et al. 2024

Inorganics

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Congo red dye is classified as a toxic chemical and can be harmful if ingested, inhaled, or in contact with the skin or eyes. It can cause irritation, allergic reactions, and skin sensitization in some individuals. Thus, in this paper, CaFe2O4 nanoparticles were produced by a simple Pechini sol-gel approach and used as an adsorbent material for the efficient disposal of Congo red dye from aqueous solutions. The maximum adsorption capacity of the CaFe2O4 towards Congo red dye is 318.47 mg/g. Furthermore, the synthesized CaFe2O4 nanoparticles exhibit an average crystal size of 24.34 nm. Scanning electron microscopy (SEM) examination showed that the CaFe2O4 nanoparticles are basically ball-like particles with a mean grain size of 540.54 nm. Moreover, transmission electron microscopy (TEM) examination showed that the CaFe2O4 sample revealed aggregated spherical particles with a mean diameter of 27.48 nm. The Energy-dispersive X-ray spectroscopy (EDS) pattern reveals that the produced CaFe2O4 nanoparticles are composed of Ca, Fe, and O elements, with an atomic ratio of 1:2:4 of these elements, respectively. The disposal of Congo red dye by the synthesized CaFe2O4 nanoparticles is chemical, spontaneous, exothermic, perfectly aligned with the pseudo-second-order kinetic model, and exhibited excellent conformity with the Langmuir equilibrium isotherm.

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Section: Removal Of Congo Red Dye From Aqueous Mediamentioning

confidence: 99%

Calcium Ferrite Nanoparticles: A Simple Synthesis Approach for the Effective Disposal of Congo Red Dye from Aqueous Environments

Al-Kadhi,

Al-Senani,

Algethami

et al. 2024

Inorganics

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“…The CoFe 2 O 4 adsorbent's point of zero charge (pH PZC ) was ascertained using the salt addition method [48]. A set of 60 mL beakers was prepared, each containing 30 mL of a 0.02 M KNO 3 solution, covering an initial pH (pH i ) range from 2.5 to 11.5.…”

Section: Adsorption Of Indigo Carmine Dye From Aqueous Solutionsmentioning

confidence: 99%

“…Moreover, metal ferrite adsorbents with magnetic properties offer an additional advantage, making their retrieval from water more convenient. This feature facilitates easy recycling and reduces operational costs [45][46][47][48]. This research delves into the adsorption capabilities of magnetic cobalt ferrite nanoparticles for eliminating indigo carmine dye from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Simple Synthesis and Characterization of Cobalt Ferrite Nanoparticles for the Successful Adsorption of Indigo Carmine Dye from Aqueous Media

Al-Wasidi,

Abdelrahman

2023

Inorganics

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Indigo carmine dye falls into the category of toxic chemicals, potentially leading to irritation and allergic reactions in certain individuals. Thus, this study employed the Pechini sol–gel strategy to easily produce CoFe2O4 nanoparticles, which serve as an effective adsorbent for the disposal of indigo carmine dye from aqueous solutions. The maximum adsorption capacity of CoFe2O4 for indigo carmine dye was determined to be 421.94 mg/g. The synthesized CoFe2O4 nanoparticles exhibited an average crystallite size of 18.75 nm. SEM analysis revealed that these nanoparticles were nearly spherical, with an average grain size of 198.32 nm. Additionally, TEM analysis indicated a fully agglomerated spherical morphology for the CoFe2O4 sample, with an average diameter of 15.37 nm. The EDS spectrum confirmed that the synthesized CoFe2O4 nanoparticles consisted of Co, Fe, and O elements, with respective weight percentages of 17.82%, 49.46%, and 32.72%. The removal of indigo carmine dye by the synthesized CoFe2O4 is spontaneous, chemical, exothermic, closely fitting the pseudo-second-order kinetic model, and demonstrating a strong concordance with the Langmuir equilibrium isotherm.

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“…Zinc gallate (ZnGa 2 O 4 ), copper gallate (CuGa 2 O 4 ), zinc ferrite (ZnFe 2 O 4 ), copper aluminate (CuAl 2 O 4 ), nickel ferrite (NiFe 2 O 4 ), calcium bismuthate (CaBi 2 O 4 ), and barium chromate (BaCr 2 O 4 ) are among these oxides. They display exceptional performance in breaking down organic dyes and aiding in hydrogen generation, thanks to their distinct characteristics, such as narrow bandgaps and high catalytic efficiency. − Many techniques have been reported in the literature for producing nanosized spinel structures, which encompass Pechini sol–gel, sol–gel, microemulsion, coprecipitation, combustion, and sonochemical methods. ,− The Pechini sol–gel technique offers precise control over the composition, size, structure, and uniformity of the resulting product. − The spinel compound known as magnesium aluminate, with the chemical formula MgAl 2 O 4 , is frequently encountered. Its versatility has led to growing interest in multiple domains, including microwave dielectrics, refractory materials, humidity sensors, ceramic capacitors, structural materials for fusion reactors, and catalysis .…”

Section: Introductionmentioning

confidence: 99%

Efficient Photocatalytic Degradation of Congo Red Dye Using Facilely Synthesized and Characterized MgAl₂O₄ Nanoparticles

Al-Farraj,

Abdelrahman

2024

ACS Omega

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The discharge of congo red dye into water sources by factories has been associated with a range of health concerns, such as cancer, redness, skin irritation, and allergic reactions. As a result, this research focused on the cost-effective and straightforward production of MgAl 2 O 4 nanoparticles by using the Pechini sol−gel process. Subsequently, these nanoparticles were employed for the successful photocatalytic decomposition of congo red dye. Moreover, extensive characterization of the fabricated MgAl 2 O 4 nanoparticles was conducted through diverse methodologies, which included Fouriertransform infrared spectroscopy, ultraviolet−visible spectrophotometry, highresolution transmission electron microscopy (HR-TEM), field-emission scanning electron microscopy (FE-SEM), and powder X-ray diffraction (XRD). Furthermore, the XRD analysis disclosed that the average crystal size of the produced MgAl 2 O 4 nanoparticles is 10.36 nm, and their optical energy gap was determined to be 3.71 eV. The FE-SEM examination unveiled a combination of spherical and disorganized structures with a 0.14 μm average grain size. HR-TEM analysis, in turn, revealed that the fabricated MgAl 2 O 4 nanoparticles were composed of minuscule spherical particles with an average diameter of 8.75 nm. The maximum degradation of 50 mL of congo red dye at a concentration of 25 mg/L reached 99.27% within 80 min at a pH of 3. Additionally, the findings confirmed the consistent decomposition activity toward congo red dye even after four cycles, thereby validating the effectiveness and reusability of the MgAl 2 O 4 nanoparticles that were developed in this study.

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Facile Synthesis of MgO/CuO and MgO/Cu3MgO4 Binary Nanocomposites as Promising Adsorbents for the Disposal of Zn(II) Ions

Cited by 11 publications

References 61 publications

Calcium Ferrite Nanoparticles: A Simple Synthesis Approach for the Effective Disposal of Congo Red Dye from Aqueous Environments

Calcium Ferrite Nanoparticles: A Simple Synthesis Approach for the Effective Disposal of Congo Red Dye from Aqueous Environments

Simple Synthesis and Characterization of Cobalt Ferrite Nanoparticles for the Successful Adsorption of Indigo Carmine Dye from Aqueous Media

Efficient Photocatalytic Degradation of Congo Red Dye Using Facilely Synthesized and Characterized MgAl₂O₄ Nanoparticles

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Facile Synthesis of MgO/CuO and MgO/Cu3MgO4 Binary Nanocomposites as Promising Adsorbents for the Disposal of Zn(II) Ions

Cited by 11 publications

References 61 publications

Calcium Ferrite Nanoparticles: A Simple Synthesis Approach for the Effective Disposal of Congo Red Dye from Aqueous Environments

Calcium Ferrite Nanoparticles: A Simple Synthesis Approach for the Effective Disposal of Congo Red Dye from Aqueous Environments

Simple Synthesis and Characterization of Cobalt Ferrite Nanoparticles for the Successful Adsorption of Indigo Carmine Dye from Aqueous Media

Efficient Photocatalytic Degradation of Congo Red Dye Using Facilely Synthesized and Characterized MgAl2O4 Nanoparticles

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Efficient Photocatalytic Degradation of Congo Red Dye Using Facilely Synthesized and Characterized MgAl₂O₄ Nanoparticles