Utilization of Euryale ferox Salisbury seed shell for removal of basic fuchsin dye from water: equilibrium and kinetics investigation

Kalita, Sanjeeb; Pathak, Mihirjyoti; Devi, Gitika; Sarma, Hari Prasad; Bhattacharyya, Krishna G.; Sarma, Aniruddha; Devi, Arundhuti

doi:10.1039/c7ra03014b

Cited by 40 publications

(30 citation statements)

References 33 publications

(51 reference statements)

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“…Dyes mixed in water bodies, such as ponds, lake, and river, reduce the amount of sunlight reaching water sources, and due to that, photosynthesis gets affected for aquatic plants as well as animals [34]. Polluted water intake by humans also causes mutagenic and carcinogenic effects [35,36]. Therefore, advanced studies are carried out on removing toxic dyes.…”

Section: Removal Of Dyes From Water Resourcesmentioning

confidence: 99%

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Role of Activated Carbon in Water Treatment

Rajan¹,

I²

2024

Water Quality - New Perspectives

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Heavy metals, such as lead, mercury, zinc, aluminum, arsenic, nickel, chromium, and cobalt, are the common pollutants present within the environment from various natural and Industrial sources. Synthetic dyes are commonly used for dyeing and printing in a variety of industries. The traditional methods for the removal of heavy metals and dyes from wastewater are chemical precipitation, ion exchange, adsorption, membrane processes, and evaporation which require high capital investment and running costs. Activated carbon prepared from agricultural wastes and its by-products are good alternative sources for adsorption because they are low-cost, renewable sources with high carbon, volatile contents, low ash, and reasonable hardness. The preparation means of activated carbon are physical and chemical methods. The important advantages of chemical activation over physical activation are the process that can be accomplished even at lower temperatures and the yield obtained in chemical activation tends to be greater since burn-off char can be avoided. In this chapter, the removal of heavy metals and dyes, using activated carbon, which was prepared by using agricultural waste, biomass was presented. This helps the researchers to accumulate knowledge.

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Section: Removal Of Dyes From Water Resourcesmentioning

confidence: 99%

“…The sources of these heavy metals and ions are paint industry, chemical plants, textile dying, dumping of waste in landfills, etc. Most Dyes adsorption on adsorbents derived from biomass for water treatment [36,37].…”

Section: Removal Of Heavy Metals From Watermentioning

confidence: 99%

Role of Activated Carbon in Water Treatment

Rajan¹,

I²

2024

Water Quality - New Perspectives

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“…The pH of the aqueous solution greatly in uences the adsorption operation. The pH of the solution in which adsorption operation takes place affects the charges present on the functional group at the active site of the adsorbent surface (Jantawatchai et al 2017, Kalita et al 2017). The adsorption e ciency of AASCO over CV dye was investigated over a range from pH 2 to 10.…”

Section: Effect Of the Variable Ph On Adsorption Operationmentioning

confidence: 99%

Use of activated Chromolaena odorata biomass for the removal of crystal violet from aqueous solution: kinetic, equilibrium, and thermodynamic study

Soosai

Moorthy

Varalakshmi

et al. 2022

Environ Sci Pollut Res

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In the present study, biomass from the Chromolaena odorata plant's stem was activated using sulfuric acid to absorb crystal violet (CV) dye. The adsorption operation of CV dye was studied considering the effect of variables like pH, initial dye concentration, time, adsorbent dosage, and temperature. The pseudo-second-order equation best tted the kinetic study, and thermodynamic parameters calculated were activation energy (9.56 kJ/mol), change in Gibbs energy (81.43 to 96.7 kJ/mol), enthalpy change (6.89 kJ/mol), and entropy change [-254.4 J/ (mol K)]. Response surface methodology (RSM) estimated at pH (4.902), adsorbent dosage (8.33 g/L), dye concentration (82.30 ppm), temperature (300.13 K) dye removal of 97.53% is possible. FTIR, SEM, XRD, BJH, and BET con rmed adsorption operation. The adsorbent can be reused for 5 cycles effectively. Langmuir isotherm best tted the adsorption operation was used for designing a theoretical single-stage batch adsorber for large-scale operation. IntroductionMauveine was the rst synthetic dye invented in 1856; since various synthetic dyes were created, the use and development of other synthetic dyes in textile industries have continuously increased. Synthetic dye meets nearly 65-70% of the dyeing industry's needs. They possess a large variant of color available at a relatively low price than natural dye and could colorize the target molecules easily with greater stability (Zhang et al. 2016b). Around 700,000 metric tons of pigments and dye are produced from over 10,000 types of dyes each year (Sahu &Patel 2016). Dyes are primarily organic and toxic. Dye pollutants from industry nd their way to natural water bodies that pose a severe threat to both humans and the environment (Zhao et al. 2017). The dye-rich wastewater hinders the growth of aquatic life by re ecting and absorbing the sunlight needed for photosynthesis needed by the underwater plant; thus, the presence of underwater ora and fauna is affected. This raises the serious issue of treating the dye e uent before discharging into the water source (Amri et al. 2018, Intarasuwan et al. 2017.Water is a important component as all the living organism on earth needs water for their daily vital activities. With the growth of population and urbanization, the need for water gets intensi ed. However, the various man-made activity allows the pollutants like dye molecules making their way into natural water bodies, rendering the water dangerous for consumption. The polluted water bodies deeply affect the health of humans and many other living organisms consuming it. Thus, it becomes essential to treat water in a large quantity, with the fast and straightforward process to make it safe for consumption of not only humans but also to the other living organism living amongst us (Ali 2012, Bolisetty et al. 2019, Zhang et al. 2016a).Crystal violet (CV) is a synthetic dye of triarylmethane dyes commonly employed in the textile and paper industry. The CV dye is mutagenic, teratogenic, and suspected carcinogen biohazards dye with a long half-l...

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“…It is urgently needed to be removed from the aqueous solution for the reason that BM poses a great threat to water resources due to its poor biodegradability, toxicity and carcinogenicity. According to the literature, the removal method of BM in aqueous solution is mainly adsorption [ 7 , 8 ]. However, the application of BM dye adsorbents subjects to the disadvantages of low adsorption capacity, slow kinetic speed and low recovery potential.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Photocatalytic-Adsorption Removal of Basic Magenta Effect of AgZnO/Polyoxometalates Nanocomposites

et al. 2021

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The bifunctional photocatalytic-adsorbent AgZnO/polyoxometalates (AgZnO/POMs) nanocomposites were synthesized by combining AgZnO hybrid nanoparticles and polyoxometalates [Cu(L)2(H2O)]H2[Cu(L)2(P2Mo5O23)]⋅4H2O (HL = C6H6N2O) into nanostructures via a sonochemical method. Transmission electron microscopy (TEM) indicated that AgZnO/POMs nanocomposites were uniform with narrow particle size distribution and without agglomeration. X-ray powder diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analysis confirmed the nanostructure and composition of AgZnO/POMs nanocomposites. The ultraviolet–visible spectra (UV–Vis) and photoluminescence spectra (PL) confirmed excellent optical properties of the AgZnO/POMs nanocomposites. 94.13% ± 0.61 of basic magenta (BM) in aqueous solution could be removed using the AgZnO/POMs nanocomposites through adsorption and photocatalysis. The kinetic analysis showed that both the adsorption and photocatalysis process conform to pseudo-second-order kinetics. In addition, the removal rate of AgZnO/POMs nanocomposites was found to be almost unchanged after 5 cycles of use. The bifunctional photocatalytic-adsorbent AgZnO/POMs nanocomposites with high stability and cycling performance have broad application prospects in the treatment of refractory organic dye wastewater containing triphenylmethane.

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Utilization of Euryale ferox Salisbury seed shell for removal of basic fuchsin dye from water: equilibrium and kinetics investigation

Abstract: Euryale ferox Salisbury (E. ferox) is an environmentally and economically important wetland macrophyte.

Cited by 40 publications

References 33 publications

Role of Activated Carbon in Water Treatment

Role of Activated Carbon in Water Treatment

Use of activated Chromolaena odorata biomass for the removal of crystal violet from aqueous solution: kinetic, equilibrium, and thermodynamic study

Synergistic Photocatalytic-Adsorption Removal of Basic Magenta Effect of AgZnO/Polyoxometalates Nanocomposites

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