Iron Molybdate Fe2(MoO4)3 Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions

Mohmoud, Ahmed; Rakass, Souad; Hassani, Hicham Oudghiri; Kooli, Fethi; Abboudi, Mostafa; Aoun, Sami Ben

doi:10.3390/molecules25215100

Cited by 8 publications

(5 citation statements)

References 58 publications

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“…In this work, three adsorption models are applied, which are Langmuir, Freundlich and Temkin respectively. Their equations are listed in Table 1 59 , 60 . According to the equation of adsorption model, the experimental data were fitted and the parameters are shown in Table 2 .…”

Section: Resultsmentioning

confidence: 99%

Study on the adsorption properties of methyl orange by natural one-dimensional nano-mineral materials with different structures

et al. 2021

Sci Rep

101

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Methyl orange (MO) is a common anionic azo dye that is harmful to the environment and biology, so it must be treated innocuously before it can be discharged. Adsorption is an effective method to remove anionic dyes. Nanotube mineral is a natural one-dimensional adsorption material, and its unique morphology and structure endow it with good adsorption capacity. Although there are many related studies, there is a lack of in-depth discussions on the influence of nanotube’s composition and structure on the adsorption of dyes and other pollutants. In this paper, two kinds of natural one-dimensional silicate minerals [halloysite nanotubes (HNTs) and chrysotile nanotubes (ChNTs)] with similar morphology but slightly different compositions and crystal structures were used as adsorbents, and MO solution was used as simulate pollutants. It is the first time to discuss in depth the influence of the composition and structure of nanotube minerals on their charge properties and the adsorption performance of methyl orange dyes. It is found that HNTs and ChNTs have different adsorption capacity due to the difference of electronegativity between Al3+ and Mg2+ in the crystal, so they possess negative and positive charges respectively in near-neutral solution, which leads to the adsorption capacity of MO by ChNTs with positive charges which is greater than that of HNTs.

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Section: Resultsmentioning

confidence: 99%

Study on the adsorption properties of methyl orange by natural one-dimensional nano-mineral materials with different structures

et al. 2021

Sci Rep

101

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“…As a matter of fact, the data show a decrease in dye removal from 99% to 73% with a decrease in removal capacity from 15,900 to 11,608mg/g. The maximum adsorption capacity obtained after four cycles of use (11,608 mg/g) was higher than that obtained by several nanosorbents [ 30 , 87 , 88 , 89 , 90 , 91 , 92 ]. The high level of removal efficiency showed that the adsorbent regeneration by way of calcination under atmospheric air at a temperature of 400 °C was extremely efficient and indicative of outstanding recycling capability.…”

Section: Resultsmentioning

confidence: 61%

Highly Efficient Methylene Blue Dye Removal by Nickel Molybdate Nanosorbent

et al. 2021

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Removing methylene blue (MB) dye from aqueous solutions was examined by the use of nickel molybdate (α-NiMoO4) as an adsorbent produced by an uncomplicated, rapid, and cost-effective method. Different results were produced by varying different parameters such as the pH, the adsorbent dose, the temperature, the contact time, and the initial dye concentration. Adsorbent dose and pH had a major removal effect on MB. Interestingly, a lower amount of adsorbent dose caused greater MB removal. The amount of removal gained was efficient and reached a 99% level with an initial methylene blue solution concentration of ≤160 ppm at pH 11. The kinetic studies indicated that the pseudo-second-order kinetic model relates very well with that of the obtained experimental results. The thermodynamic studies showed that removing the MB dye was favorable, spontaneous, and endothermic. Impressively, the highest quantity of removal amount of MB dye was 16,863 mg/g, as shown by the Langmuir model. The thermal regeneration tests revealed that the efficiency of removing MB (11,608 mg/g) was retained following three continuous rounds of recycled adsorbents. Adsorption of MB onto α-NiMoO4 nanoparticles and its regeneration were confirmed by Fourier transform infrared spectroscopy (FTIR) analysis and scanning electron microscopy (SEM) analysis. The results indicated that α-NiMoO4 nanosorbent is an outstanding and strong candidate that can be used for removing the maximum capacity of MB dye in wastewater.

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“…To solve the problem of protecting the water basin from pollution by the methylene blue dye, many diffe rent sorbent substances have been obtained. Some of them are developed on the basis of organic materials, such as activated carbon [4], while others are based on inorganic iron-containing compounds [5]. At the same time, the economic feasibility of using them in the treatment of large volumes of polluted waters is important.…”

Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

Water purification from cationic organic dyes using kaolin-based ceramic materials

Бондарєва

Yaichenia

Zahorodniuk

et al. 2022

TAPR

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The development of effective sorbents based on cheap natural raw materials for water purification from synthetic organic dyes is an important environmental problem. It is known that layered silicates are distinguished by mechanical strength, thermal and chemical resistance, high dispersion, ion exchange, availability and low cost. However, the main disadvantage of natural clays is their insufficiently high sorption capacity with respect to organic toxicants. Therefore, to increase it, the surface of clay minerals is modified by various physical and chemical methods. The object of study is kaolin from the Glukhovets deposit (Ukraine), the main rock-forming mineral of which is kaolinite. After its thermal modification followed by acid activation with chloride acid, sorbents with sufficiently high structural-sorption properties and increased sorption capacity with respect to the synthetic organic dye, methylene blue, are obtained. The influence of the conditions for the synthesis of ceramic materials on the physicochemical features of the dye removal from the aqueous medium is studied. The dependence of the values of methylene blue sorption by silicate sorbents on the temperature of kaolin treatment and the concentration of chloride acid, which was used for its acid activation, is studied. It has been established that the specific surface of the obtained samples is significantly affected by both the kaolin treatment temperature and the concentration of perchloric acid. Thus, under certain experimental conditions, sorption materials were obtained with a specific surface area of 140 m2/g, which significantly exceeds that for the original kaolin, which is 9 m2/g. A significant increase in the sorption capacity of acid-activated samples compared to the original clay and heat-treated forms was established. The value of the maximum sorption of methylene blue for acid-activated samples exceeds that for natural kaolin by almost 2 times and reaches 16 mg/g.

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Iron Molybdate Fe2(MoO4)3 Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions

Cited by 8 publications

References 58 publications

Study on the adsorption properties of methyl orange by natural one-dimensional nano-mineral materials with different structures

Study on the adsorption properties of methyl orange by natural one-dimensional nano-mineral materials with different structures

Highly Efficient Methylene Blue Dye Removal by Nickel Molybdate Nanosorbent

Water purification from cationic organic dyes using kaolin-based ceramic materials

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