Removal of dye from polluted water using novel nano manganese oxide-based materials

Islam, Md. Aminul; Ali, Imran; Karim, S.M. Abdul; Firoz, Shakhawat H.; Chowdhury, Al–Nakib; Morton, David W.; Angove, Michael J.

doi:10.1016/j.jwpe.2019.100911

Cited by 176 publications

(53 citation statements)

References 185 publications

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“…These methods include chemical reduction, oxidation, membrane separation, Fenton oxidation, photodegradation, coagulation–flocculation, and adsorption. 9 , 10 Among all, adsorption stands as the best because it offers various advantages such as high degree of separation, easy operational technique, and low cost. 11 − 14 …”

Section: Introductionmentioning

confidence: 99%

Sucrose-Triggered, Self-Sustained Combustive Synthesis of Magnetic Nickel Oxide Nanoparticles and Efficient Removal of Malachite Green from Water

Mohanta

Dey²,

Dey

2020

ACS Omega

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Dye-containing industrial effluents create major concern nowadays. To address the problem, magnetic nickel oxide nanoparticles (NONPs) were synthesized using the autopropagator combustion technique assisted by sucrose as fuel and used for the removal of toxic malachite green (MG) from water. The material was characterized by scanning electron microscopy (SEM–EDS), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), vibrating sample magnetism (VSM), point of zero charge (pH ZPC ), and Brunauer–Emmet–Teller surface area analysis. SEM images show flowerlike texture with the presence of multiple pores. VSM reveals a well-defined hysteresis at room temperature, confirming a permanent magnetic nature of the material. pH ZPC was found to be 6.63, which enables dye separation in the drinking water pH range. MG removal from water was carried out in the batch mode with optimized physicochemical parameters such as contact time, pH, temperature, and dose. Langmuir adsorption capacity was estimated to be 87.72 mg/g. Pseudo-second order kinetics ( R 2 = 0.999) and Langmuir isotherm model ( R 2 = 0.997) were found to best fit. The magnetic nature facilitates fast and quantitative separation of NONPs from solution using a hand-held magnet. Dye-loaded NONPs can be easily regenerated up to 89% and reused up to five cycles without significant loss of activity. The mechanism of adsorption is proposed to be a combination of electrostatic attraction and weak hydrogen bonding. Strategically designed straightforward synthetic protocol, low cost, high uptake capacity, and sustainable use render NONPs an ideal alternative for future dye treatment.

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Section: Introductionmentioning

confidence: 99%

Sucrose-Triggered, Self-Sustained Combustive Synthesis of Magnetic Nickel Oxide Nanoparticles and Efficient Removal of Malachite Green from Water

Mohanta

Dey²,

Dey

2020

ACS Omega

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“…1 These organic dyes played a major role in industry as colouring agent, the organic dyes used are namely azo dyes, mordant dyes, sulfur dyes, basic dyes, acid dyes, reactive dyes, and vat dyes. 2 Despite the advantage dyes bring to various industries, these dyes are harmful and have become a major source of water pollution, especially from the effluent of textile, cosmetic, plastic, and paper industries. 3,4 In a study by Vadivelan et al, organic dyes caused vomiting, Heinz body formations, increased heart rate, jaundice, quadriplegia, and shock when overexposed to humans.…”

Section: Introductionmentioning

confidence: 99%

“…Dyes are organic compounds with color properties and they are often applied in layers of materials, including textile, hair, leather, paper, drugs, and cosmetics to create visual effects 1 . These organic dyes played a major role in industry as colouring agent, the organic dyes used are namely azo dyes, mordant dyes, sulfur dyes, basic dyes, acid dyes, reactive dyes, and vat dyes 2 . Despite the advantage dyes bring to various industries, these dyes are harmful and have become a major source of water pollution, especially from the effluent of textile, cosmetic, plastic, and paper industries 3,4 .…”

Section: Introductionmentioning

confidence: 99%

Study on the enhancement of colloidal stable poly(sodium 4‐styrene sulfonate) coated magnetite nanoparticles and regeneration capability for rapid magnetophoretic removal of organic dye

Chong

Lim

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND: A good colloidal stability of magnetite nanoparticles (MNPs) dispersion is of utmost importance for its environmentally related applications. In the present work, a water-soluble anionic polyelectrolyte, poly(sodium 4-styrene sulfonate) (PSS), was used to stabilize dispersions of MNPs in a pH-dependent aqueous medium. RESULTS: An excellent methylene blue (MB) dye removal efficiency at equilibrium of up to 94% has been observed by the colloidally stabilized nano-magnetites. Dynamic light scattering and electrophoretic analysis showed that the PSS-coated MNPs exhibited better colloidal stability, with an almost constant hydrodynamic diameter of ∼150 nm and insignificant clustering behavior throughout the measuring time scale of 5 h. Transmission electron microscopy evidenced the success coating of PSS onto MNPs. In terms of its chemical resistance, the PSS-coated MNPs were able to tolerate a wide pH range from 2 to 10. This work depicts a simple physiochemical coating method to stabilize dispersions of nano-magnetites, which promoted a better MB adsorption capacity of PSScoated MNPs at 14.9 mg g-1 than the naked MNPs at 10.38 mg g-1. The adsorption process follows Langmuir isotherm and pseudo-second-order reaction kinetics with both correlations R 2 > 0.99. PSS-coated MNPs demonstrated outstanding regeneration capacity for four batch adsorption cycles with an almost consistent MB removal efficiency higher than 85%. CONCLUSION: This in-house developed nano-sorbent has potential in economical applications with a less budgeted adsorbent replacement (at least 4 cycles of regeneration) for low-cost separation of pollutants, such as MB from polluted water.

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“…The interaction between manganese oxides and raw materials was recommended as a favorable strategy in maximizing the value of these natural sources for water remediation [18,19]. Manganese-rich minerals (i.e., manganese is present in the octahedral sheet of synthetic clays such as smectite [20] and mica [2,21].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Studies of Methyl Orange Uptake by Mn–Rich Synthetic Mica: Insights into Manganese Role in Adsorption and Selectivity

et al. 2020

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Manganese–containing mica (Mn–mica) was synthesized at 200 °C/96 h using Mn–carbonate, Al–nitrate, silicic acid, and high KOH concentration under hydrothermal conditions. Mn–mica was characterized and tested as a new adsorbent for the removal of methyl orange (MO) dye from aqueous solutions. Compared to naturally occurring mica, the Mn–mica with manganese in the octahedral sheet resulted in enhanced MO uptake by four times at pH 3.0 and 25 °C. The pseudo–second order equation for kinetics and Freundlich equation for adsorption isotherm fitted well to the experimental data at all adsorption temperatures (i.e., 25, 40 and 55 °C). The decrease of Langmuir uptake capacity from 107.3 to 92.76 mg·g−1 within the temperature range of 25–55 °C suggested that MO adsorption is an exothermic process. The role of manganese in MO selectivity and the adsorption mechanism was analyzed via the physicochemical parameters of a multilayer adsorption model. The aggregated number of MO ions per Mn–mica active site ( n ) was superior to unity at all temperatures signifying a vertical geometry and a mechanism of multi–interactions. The active sites number (DM) of Mn–mica and the total removed MO layers (Nt) slightly changed with temperature. The decrease in the MO adsorption capacities (Qsat = n·DM·Nt) from 190.44 to 140.33 mg·g−1 in the temperature range of 25–55 °C was mainly controlled by the n parameter. The results of adsorption energies revealed that MO uptake was an exothermic (i.e., negative ΔE values) and a physisorption process (ΔE < 40 kJ mol −1). Accordingly, the adsorption of MO onto Mn–mica was governed by the number of active sites and the adsorption energy. This study offers insights into the manganese control of the interactions between MO ions and Mn–mica active sites.

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Removal of dye from polluted water using novel nano manganese oxide-based materials

Cited by 176 publications

References 185 publications

Sucrose-Triggered, Self-Sustained Combustive Synthesis of Magnetic Nickel Oxide Nanoparticles and Efficient Removal of Malachite Green from Water

Sucrose-Triggered, Self-Sustained Combustive Synthesis of Magnetic Nickel Oxide Nanoparticles and Efficient Removal of Malachite Green from Water

Study on the enhancement of colloidal stable poly(sodium 4‐styrene sulfonate) coated magnetite nanoparticles and regeneration capability for rapid magnetophoretic removal of organic dye

Experimental and Theoretical Studies of Methyl Orange Uptake by Mn–Rich Synthetic Mica: Insights into Manganese Role in Adsorption and Selectivity

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