Mesoporous Fe–Al-doped cellulose for the efficient removal of reactive dyes

Khapre, Maithili A.; Shekhawat, Anita; Saravanan, D.; Pandey, Sadanand; Jugade, Ravin

doi:10.1039/d2ma00146b

Cited by 32 publications

(7 citation statements)

References 46 publications

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“…Dye removal efficiencies from 30 to 90 mg/L of BB, BFB, BBF, BFBF, BBZ, and BFBZ were 93.56–97.91, 91.57–96.07, 86.92–95.49, 99.10–99.49, 80.05–93.88, and 94.51–99.86%, respectively; they were decreased with increasing dye concentration. These results corresponded to other studies that increasing initial dye concentration decreased active adsorbent sites and resulted in the decrease of dye removal efficiency . For the dye concentration of 50 mg/L, dye removal efficiencies of BB, BFB, BBF, BFBF, BBZ, and BFBZ were 96.09, 95.08, 91.44, 99.36, 90.92, and 98.88%, respectively, and BFBF demonstrated the highest dye removal efficiency than others.…”

Section: Resultssupporting

confidence: 54%

“…These results corresponded to other studies that increasing initial dye concentration decreased active adsorbent sites and resulted in the decrease of dye removal efficiency. 36 For the dye concentration of 50 mg/L, dye removal efficiencies of BB, BFB, BBF, BFBF, BBZ, and BFBZ were 96.09, 95.08, 91.44, 99.36, 90.92, and 98.88%, respectively, and BFBF demonstrated the highest dye removal efficiency than others. Therefore, all dye adsorbent materials were high-quality adsorbents for a dye removal of 50 mg/L in wastewater more than 90%.…”

Section: Resultsmentioning

confidence: 90%

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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: Resultssupporting

confidence: 54%

Section: Resultsmentioning

confidence: 90%

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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“…In recent years, CuO has been doped with several elements, resulting in improved catalytic and antibacterial activities of the product. − The composites made with metal nanoparticles and polymers have a superior antimicrobial effect, leading to greater practical applications . The formation of composites combines the key features of two or more polymers or a polymer blend with transition metals, resulting in a high adsorption capacity . CuO has proven to be an efficient inorganic catalytic and bacterial agent in the presence of potential biopolymers having antibacterial and dye degradation properties. , Recently, Mallakpour et al reviewed the structure, characteristics, and utilization of polymer/CuO nanocomposites .…”

Section: Introductionmentioning

confidence: 99%

“… 27 The formation of composites combines the key features of two or more polymers or a polymer blend with transition metals, resulting in a high adsorption capacity. 28 CuO has proven to be an efficient inorganic catalytic and bacterial agent in the presence of potential biopolymers having antibacterial and dye degradation properties. 29 , 30 Recently, Mallakpour et al reviewed the structure, characteristics, and utilization of polymer/CuO nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Chitosan-Grafted Polyacrylic Acid-Doped Copper Oxide Nanoflakes Used as a Potential Dye Degrader and Antibacterial Agent: In Silico Molecular Docking Analysis

et al. 2022

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This study examined the catalytic and bactericidal properties of polymer-doped copper oxide (CuO). For this purpose, a facile co-precipitation method was used to synthesize CuO nanostructures doped with CS-g-PAA. Various concentrations (2, 4, and 6%) of dopants were systematically incorporated into a fixed amount of CuO. The prepared samples were analyzed by different optical, structural, and morphological characterizations. Field emission scanning electron microscopy and transmission electron microscopy micrographs indicated that doping transformed CuO’s agglomerated rod-like surface morphology to form nanoflakes. UV–vis spectroscopy revealed that the optical spectra of the samples exhibit a redshift after doping, leading to a decrease in band gap energy from 3.3 to 2.5 eV. The purpose of the study was to test the catalytic activity of pristine and CS-g-PAA doped CuO for the degradation of methylene blue in acidic, basic, and neutral conditions using NaBH4 as a reducing agent in an aqueous medium. Furthermore, antibacterial activity was evaluated against Gram-positive and Gram-negative bacteria, namely, Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Overall, enhanced bactericidal performance was observed upon doping CS-g-PAA into CuO, i.e., 4.25–6.15 and 4.40–8.15 mm against S. aureus and 1.35–4.20 and 2.25–5.25 mm against E. coli at the lowest and highest doses, respectively. The relevant catalytic and bactericidal action mechanisms of samples are also proposed in the study. Moreover, in silico molecular docking studies illustrated the role of these prepared nanomaterials as possible inhibitors of FabH and FabI enzymes of the fatty acid biosynthetic pathway.

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“…In addition, good recyclability is a great property of Fe 2 O 3 nanoparticles. Magnetic Fe 2 O 3 nanoparticles can be reused after proper cleaning [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Adsorption characteristics of bovine serum albumin onto α-Fe₂O₃ nanoparticles prepared via the alcohol solution combustion process of ferric nitrate

Zhu

et al. 2022

Mater. Res. Express

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The α-Fe2O3 nanoparticles were prepared via the alcohol solution combustion process of ferric nitrate. The scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS). X-ray diffraction (XRD), and vibrating sample magnetometer (VSM) were taken to characterize the prepared α-Fe2O3 nanoparticles. The average particle sizes of the as-prepared α-Fe2O3 nanoparticles were approximately 180 nm, and their magnetic property was approximately 0.42 emu·g-1 after the measurement. The different concentrations of BSA solutions and the adsorption times were investigated to investigate the adsorption characteristics of bovine serum albumin (BSA) onto α-Fe2O3 nanoparticles. For larger adsorption capacity and higher removal rate, the dose of α-Fe2O3 nanoparticles in aqueous solution was selected at 2.5 mg·mL-1. The adsorption process of BSA onto α-Fe2O3 nanoparticles conformed to the pseudo-first-order kinetic model. While, the correlation coefficient (R2) of the Temkin isothermal model was higher than Langmuir model and Freundlich isothermal model, suggesting that the isothermal model of BSA onto α-Fe2O3 nanoparticles was more in line with Temkin isotherm model. Which suggested that the adsorption behavior of magnetic α-Fe2O3 nanoparticles for BSA belonged to multi-molecular layer chemisorption. When BSA concentration was 600 mg·L-1 and the pH of solution was 5, the adsorption capacity of BSA onto magnetic α-Fe2O3 nanoparticles achieved 114.2 mg·g-1, and the adsorption rate could still reach 70.3% of the first time after 7 cycles.

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Mesoporous Fe–Al-doped cellulose for the efficient removal of reactive dyes

Abstract: A highly efficient mesoporous bimetallic cellulose composite has been prepared by simultaneous precipitation of Fe and Al metal solutions in cellulose matrix. This Fe-Al doped cellulose (FADC) was characterized using...

Cited by 32 publications

References 46 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

Chitosan-Grafted Polyacrylic Acid-Doped Copper Oxide Nanoflakes Used as a Potential Dye Degrader and Antibacterial Agent: In Silico Molecular Docking Analysis

Adsorption characteristics of bovine serum albumin onto α-Fe₂O₃ nanoparticles prepared via the alcohol solution combustion process of ferric nitrate

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Mesoporous Fe–Al-doped cellulose for the efficient removal of reactive dyes

Abstract: A highly efficient mesoporous bimetallic cellulose composite has been prepared by simultaneous precipitation of Fe and Al metal solutions in cellulose matrix. This Fe-Al doped cellulose (FADC) was characterized using...

Cited by 32 publications

References 46 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

Chitosan-Grafted Polyacrylic Acid-Doped Copper Oxide Nanoflakes Used as a Potential Dye Degrader and Antibacterial Agent: In Silico Molecular Docking Analysis

Adsorption characteristics of bovine serum albumin onto α-Fe2O3 nanoparticles prepared via the alcohol solution combustion process of ferric nitrate

Contact Info

Product

Resources

About

Adsorption characteristics of bovine serum albumin onto α-Fe₂O₃ nanoparticles prepared via the alcohol solution combustion process of ferric nitrate