Adsorptive removal of eriochrome black T (EBT) dye by using surface active low cost zinc oxide nanoparticles: A comparative overview

Kaur, Yesbinder; Jasrotia, Teenu; Kumar, Rajeev; Chaudhary, Ganga Ram; Chaudhary, Savita

doi:10.1016/j.chemosphere.2021.130366

Cited by 55 publications

(19 citation statements)

References 52 publications

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“… 15 Especially, iron(III) oxide-hydroxide and ZnO are usually used for improving material efficiency to remove dyes in many articles. 16 − 19 Metal oxides are not appropriate for direct use in dye removal in effluents because they might cause problems including clogging, pressure drop, and being hard to separate after treatment. 20 Therefore, the adsorbent efficiencies are improved by adding them to raw materials.…”

Section: Introductionmentioning

confidence: 99%

“…Many types of metal oxides such as titanium dioxide (TiO 2 ), aluminum oxide (Al 2 O 3 ), manganese oxide (MnO), iron oxide (FeOH), and zinc oxide (ZnO) have been used for dye removal in various applications . Especially, iron(III) oxide-hydroxide and ZnO are usually used for improving material efficiency to remove dyes in many articles. − Metal oxides are not appropriate for direct use in dye removal in effluents because they might cause problems including clogging, pressure drop, and being hard to separate after treatment . Therefore, the adsorbent efficiencies are improved by adding them to raw materials.…”

Section: Introductionmentioning

confidence: 99%

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Modified Beaded Materials from Recycled Wastes of Bagasse and Bagasse Fly Ash with Iron(III) Oxide-Hydroxide and Zinc Oxide for the Removal of Reactive Blue 4 Dye in Aqueous Solution

et al. 2022

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Dye contamination in wastewater affects the photosynthesis of aquatic plants and algae by blocking the sunlight, and it induces toxicity to aquatic organisms, which might result in human health effects. Thus, the treatment of dyes in wastewater is required before discharging into the receiving water for safety purposes. Six dye adsorbent materials bagasse beads (BB), bagasse fly ash beads (BFB), bagasse beads with mixed iron(III) oxide-hydroxide (BBF), bagasse fly ash beads with mixed iron(III) oxide-hydroxide (BFBF), bagasse beads with mixed zinc oxide (BBZ), and bagasse fly ash beads with mixed zinc oxide (BFBZ) were synthesized and investigated using various characterization techniques such as X-ray diffractometry (XRD), field emission scanning electron microscopy with focused ion beam (FESEM-FIB), energy dispersive X-ray spectrometry (EDX), and Fourier transform infrared spectroscopy (FTIR). A series of batch experiments on the effects of dosage (0.5–3 g), contact time (3–18 h), temperature (30–80°C), pH (3–11), and initial concentration (30–90 mg/L) were used to investigate reactive blue 4 (RB4) dye removal efficiencies in aqueous solution, and their adsorption isotherms and kinetics were studied for explaining their adsorption patterns and mechanisms. All dye adsorbent materials demonstrated semicrystalline structures, and their surface morphologies had a spherical shape with coarse surfaces. Five main elements of oxygen, carbon, calcium, chlorine, and sodium and six main functional groups of alcohol and carboxylic acid (O–H), carbon dioxide (O=C=O), aromatic groups (C=O and N=O), alkene (C–H), and sodium alginate (C–O–C) were detected in all dye adsorbent materials. For batch tests, they could remove RB4 dye by more than 90%, and BFBF exhibited the highest RB4 dye removal efficiency at 99.36%. Freundlich and pseudo-second-order kinetic models well explained their adsorption patterns and mechanisms, in which BFBF demonstrated a higher maximum adsorption capacity ( q m ) of 10.277 mg/g than that of other dye adsorbent materials. Therefore, all dye adsorbent materials offer good potential for further industrial applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modified Beaded Materials from Recycled Wastes of Bagasse and Bagasse Fly Ash with Iron(III) Oxide-Hydroxide and Zinc Oxide for the Removal of Reactive Blue 4 Dye in Aqueous Solution

et al. 2022

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“…Although the raw materials above are potential materials for dye removal in wastewater, it might be better if they could increase their material efficiencies for high dye removal in the case of high-strength wastewater. As a result, many studies have developed material efficiency by adding several metal oxides like titanium dioxide (TiO 2 ), aluminum oxide (Al 2 O 3 ), copper oxide (CuO), manganese oxide (MnO), iron(II,III) oxide (Fe 3 O 4 or Fe 2 O 3 ), and zinc oxide (ZnO). − Among these, Fe 3 O 4 or Fe 2 O 3 and ZnO are popularly used for improving material efficiencies to remove the dye in many articles. − Therefore, this study attempts to synthesize dye-adsorbent materials from lemon peels modified with iron(III) oxide-hydroxide and zinc oxide in a bead form to increase material efficiency and make it feasible to be an alternative dye adsorbent for an industrial application.…”

Section: Introductionmentioning

confidence: 99%

Comparative Reactive Blue 4 Dye Removal by Lemon Peel Bead Doping with Iron(III) Oxide-Hydroxide and Zinc Oxide

2022

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The increasing concern of dye contamination in wastewater results in the toxicity of aquatic life and water quality, so wastewater treatment is required to treat the low water quality standard for safety purposes. Lemon peel beads-doped iron(III) oxide-hydroxide (LBF) and lemon peel beads-doped zinc oxide (LBZ) were synthesized and characterized to investigate their crystalline structure, surface morphology, chemical compositions, chemical functional groups, and ζ potentials by X-ray diffraction, field emission scanning electron microscopy and focused ion beam, energy dispersive X-ray spectroscopy, Fourier transform infrared, and zetasizer techniques. Their effects of dose, contact time, temperature, pH, and concentration for reactive blue 4 (RB4) dye removal efficiencies were investigated by batch experiments, and their adsorption isotherms, kinetics, and desorption experiments were also studied. LBF and LBZ demonstrated semicrystalline structures, and their surface morphologies had a spherical shape with coarse surfaces. Five main elements of carbon (C), oxygen (O), calcium (Ca), chlorine (Cl), and sodium (Na) and six main function groups of O–H, CN, CC, C–OH, C–O–C, and C–H were detected in both materials. The results of ζ potential demonstrated that both LBF and LBZ had negative charges on the surface at all pH values, and their surfaces increased more of the negative charge with the addition of the pH value from 2–12. For batch tests, the RB4 dye removal efficiencies of LBF and LBZ were 83.55 and 66.64%, respectively, so LBF demonstrated a higher RB4 dye removal efficiency than LBZ. As a result, the addition of iron(III) oxide-hydroxide helped in improving the material efficiency more than zinc oxide. In addition, both LBF and LBZ could be reused in more than five cycles for RB4 dye removal of more than 41%. The Freundlich model was a good explanation for their adsorption patterns relating to physiochemical adsorption, and a pseudo-second-order kinetic model was a well-fitted model for explaining their adsorption mechanism correlating to the chemisorption process with heterogeneous adsorption. Therefore, LBF was a potential adsorbent to further apply for RB4 dye removal in industrial applications.

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“…At high concentrations, the dye molecules quenched the active sites of the ZnONPs@vitamin C adduct, so the ˙OH radical production on the surface of the catalyst was suppressed, while a large portion of the irradiation light may also be absorbed by the dye molecules instead of the catalyst particles. 73,75…”

Section: Resultsmentioning

confidence: 99%

Green nanocomposite: fabrication, characterization, and photocatalytic application of vitamin C adduct-conjugated ZnO nanoparticles

2023

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Adsorptive removal of eriochrome black T (EBT) dye by using surface active low cost zinc oxide nanoparticles: A comparative overview

Cited by 55 publications

References 52 publications

Modified Beaded Materials from Recycled Wastes of Bagasse and Bagasse Fly Ash with Iron(III) Oxide-Hydroxide and Zinc Oxide for the Removal of Reactive Blue 4 Dye in Aqueous Solution

Modified Beaded Materials from Recycled Wastes of Bagasse and Bagasse Fly Ash with Iron(III) Oxide-Hydroxide and Zinc Oxide for the Removal of Reactive Blue 4 Dye in Aqueous Solution

Comparative Reactive Blue 4 Dye Removal by Lemon Peel Bead Doping with Iron(III) Oxide-Hydroxide and Zinc Oxide

Green nanocomposite: fabrication, characterization, and photocatalytic application of vitamin C adduct-conjugated ZnO nanoparticles

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