Photocatalytic Degradation of Congo Red Dye from Aqueous Environment Using Cobalt Ferrite Nanostructures: Development, Characterization, and Photocatalytic Performance

Ali, Nisar; Said, Amir; Ali, Farman; Raziq, Fazal; Ali, Zarshad; Bilal, Muhammad; Reinert, Laurence; Begum, Tasleem; Iqbal, Hafiz M.N.

doi:10.1007/s11270-020-4410-8

Cited by 141 publications

(34 citation statements)

References 43 publications

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“…For modified CoFe 2 O 4 nanoparticles, the new peaks at 2937 and 2859 cm −1 correspond to the RNH 2 group, which explains the attachment of 3‐APTES on the surface of CoFe 2 O 4 nanoparticles. [ 35 ] The peaks at 1603 and 1459 cm −1 corresponds to the bending vibration of NH, and the peaks at 3279 and 3340 cm −1 assigned to the stretching vibration of H 2 O and hydroxyl that relates to the hydrogen bonding of silanol group. Finally, the vibration of nitrogen‐oxygen of NO 3 − group exhibit the bands at 1023 and 906 cm −1 , respectively.…”

Section: Resultsmentioning

confidence: 99%

“…The resultant spectra show that all the fabricated composites possess an aryl‐oxide group, which seems in the range of 17 to 1748 cm −1 , which is due to the CO stretching vibration, [ 37 ] while the CO stretching vibration band was observed at 1710 cm −1 , respectively. [ 35 ] The band raised at 1372 cm −1 indicate the stretching vibration of CN. [ 38 ] Moreover, the CO epoxide deformation bands occurred at 724 to 766 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

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Fabrication, mechanical, and electromagnetic studies of cobalt ferrite based‐epoxy nanocomposites

et al. 2020

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Controlling the interface, contact of organic‐inorganic materials is necessary for the preparation of high‐performance hybrid nanocomposites. Herein, the cobalt ferrite (CoFe2O4) nanofiller was synthesized via coprecipitation route by the reaction of Fe2 (SO4)3, CoSO4, and triethylene glycol. The obtained CoFe2O4 nanoparticles were thermally treated at 600°C for 5 hours. As prepared, the CoFe2O4 nanoparticles were surface functionalized with 3‐(triethoxysilyl) propylamine (APTES). The modified CoFe2O4 nanoparticles were used as reinforcement during the fabrication of epoxy‐based CoFe2O4 nanocomposite. The synthesized nanofillers and nanocomposites were structurally examined by Fourier transform infrared, X‐ray diffraction analysis, scanning electron microscopy, and thermogravimetric analysis. The effect of nanofiller on surface resistivity, electrical conductivity, and mechanical performance was also investigated. The surface resistivity of EP‐CoFe2O4 nanocomposite decreases with increasing loading concentration of CoFe2O4, while thermal degradation temperatures are improved by 90 K (12.7%) compared to neat EP‐polymer. The mechanical properties, that is, stress‐strain and Young's modulus show an increase of about 60% and 35%, respectively, at 5 wt% CoFe2O4 content. The incredible improvement in the electrical conductivity, mechanical, and thermal stability of EP‐CoFe2O4 up to 5%wt. CoFe2O4 contents are attained due to smaller size and well dispersion of nanofillers in the polymeric matrix. These simultaneous enhancements in properties intend that the EP‐CoFe2O4 nanocomposites can be useful as protective coatings and corrosion‐resistant for a variety of applications

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Fabrication, mechanical, and electromagnetic studies of cobalt ferrite based‐epoxy nanocomposites

et al. 2020

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“…Although polyimides nanocomposite exhibited better thermal stability and degraded at higher temperatures. [9][10][11] Nanotechnology recently gave new breaks for the development of advanced organic-inorganic nanocomposites. Incorporating inorganic nanoparticles into the organic matrix to improve thermal and mechanical properties is getting importance in the last few years.…”

Section: Introductionmentioning

confidence: 99%

“…Because of mentioned above outstanding properties, such hybrid nanocomposite materials are considered one of the best choices to use as a high‐performance gas separation membrane, insulating candidate for electronics, coating materials, and high‐temperature adhesive, and matrices for composites. Although polyimides nanocomposite exhibited better thermal stability and degraded at higher temperatures 9–11 …”

Section: Introductionmentioning

confidence: 99%

Synthesis and physicochemical investigation of imide‐functionalized silica nanocomposites

Ali¹,

Ali

Saeed

et al. 2021

J of Applied Polymer Sci

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The incorporation of inorganic nanoparticles into polymers have gained significant attention to improving functional properties. The ultimate nanocomposite behaviors are influenced by many parameters, such as microstructural distribution that are produced during the treatment process. Herein, a hybrid material integrating a modified network into a polyimide PI matrix was produced via the sol-gel method by the reaction of pyromellitic dianhydride, 4, 4-oxydianaline,

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“…At optimal reaction parameters, the photocatalytic rates of EBT dye for functionalized, annealed, and blank NP's were 92, 91, and 83%, respectively. Nisar et al [24] observed photocatalytic degradation of Congo red (CR) dye from the aqueous environment using cobalt ferrite nanostructures. The degradation rates of CR dye for bs-CoFe 2 O 4 , as CoFe 2 O 4 , and fs-CoFe 2 O 4 nanostructures at pH 9 were 84, 87, and 92%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Deployment of Surface-Engineered Cobalt Ferrite Nanospheres as Photocatalyst for Highly Efficient Remediation of Alizarin Red S Dye from Aqueous Solution

Ali

Said

et al. 2020

J Inorg Organomet Polym

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Hazardous effluents in the wastewaters deteriorate the ecosystem and its effective treatment is of interest to the scientific community. In this context, herein, the cobalt ferrite (CoFe 2 O 4 ) nanospheres were fabricated and inspected for photocatalytic-driven degradation of a hazardous Alizarin Red S (ARS) dye, as a model pollutant. For effective preparation of CoFe 2 O 4 nanospheres, triethylene glycol (PEG) was used as a stabilizing agent, during the reaction of cobalt oxide and iron sulfate, followed by thermally annealed and etched with 1 M hydrochloric acid. The surface of annealed nanospheres was functionalized by using 3-(triethoxysilyl)propylamine (APTES). The as-prepared pristine, annealed, and surface functionalized CoFe 2 O 4 nanospheres were characterized by analytical techniques, such as Fourier transform infrared (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). From the XRD profile, the particle size of annealed and functionalized nanospheres were 17.3 and 21 nm, respectively. FTIR study corroborates the surface tailoring of CoFe 2 O 4 nanospheres. The SEM analysis of F-CoFe 2 O 4 nanospheres showed that the bigger aggregates of nanospheres disappear, and the overall distribution of particles was notably improved after functionalization. The surface engineered nanospheres presented high efficiency for ARS dye degradation under the optimal conditions of irradiation time, pH, adsorbent dose, dye dose, and different acids. Kinetics models explained that the degradation reaction following pseudo-first-order kinetics. The turnover number (TON) reached up to 2.75 × 10 8 , 2.85 × 10 8 and 3.01 × 10 8 for bare, annealed and functionalized CoFe 2 O 2 nanoparticles, respectively. In conclusion, the results indicate a high potential of photo-driven catalytic remediation of tested hazardous dye by engineered cobalt ferrite nanospheres and encourage further work on photocatalytic abatement of organic contaminants.

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Photocatalytic Degradation of Congo Red Dye from Aqueous Environment Using Cobalt Ferrite Nanostructures: Development, Characterization, and Photocatalytic Performance

Cited by 141 publications

References 43 publications

Fabrication, mechanical, and electromagnetic studies of cobalt ferrite based‐epoxy nanocomposites

Fabrication, mechanical, and electromagnetic studies of cobalt ferrite based‐epoxy nanocomposites

Synthesis and physicochemical investigation of imide‐functionalized silica nanocomposites

Characterization and Deployment of Surface-Engineered Cobalt Ferrite Nanospheres as Photocatalyst for Highly Efficient Remediation of Alizarin Red S Dye from Aqueous Solution

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