Efficient adsorption of congo red dye from aqueous solution using green synthesized coinage nanoparticles coated activated carbon beads

Pal, Jolly; Deb, Manas Kanti

doi:10.1007/s13204-013-0277-y

Cited by 49 publications

(12 citation statements)

References 32 publications

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“…is significant in removal of turbidity. In addition, researchers [8][9][10] have studied cactus extracts, chitosan, and cationic starches as alternative coagulants and reported that these materials have coagulation and flocculation capacity for turbidity removal. The use of low-cost alternative treatment technologies and materials is vital for the treatment of wastewater [11].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Performance study on algal alginate as natural coagulant for the removal of Congo red dye

Vijayaraghavan

Shanthakumar

2016

Desalination and Water Treatment

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Coagulation is an important step in the physicochemical treatment of wastewater. Due to the disadvantage associated with the commonly used inorganic metal salts and other synthetic polymers, in recent years, research on the use of natural organic polymers as coagulant is gaining importance. In this study, the coagulation potential of alginate extracted from brown algae, Sargassum sp. for the removal of Congo red dye from aqueous solution has been identified. The yield of alginate extraction was found to be 40.8%. The extracted alginate was characterized by Fourier transform infrared spectroscopy and Scanning electron microscopy techniques. The effect of initial pH (4-6), alginate dose (10-60 mg/L), calcium dose (1-6 g/L), and initial dye concentration (50-250 mg/L) on dye removal have been investigated. It is inferred from the study that the maximum removal of dye (96%) was achieved with increasing alginate and calcium dose for increasing dye concentration, at pH 4. The obtained results were compared with the literature on Congo red dye removal using various adsorbents and coagulants.

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Section: Desalination and Water Treatmentmentioning

confidence: 99%

Performance study on algal alginate as natural coagulant for the removal of Congo red dye

Vijayaraghavan

Shanthakumar

2016

Desalination and Water Treatment

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“…Quality water is indispensable and essential to life (Fawole et al 2002) but meeting the quality for different purposes has been a huge task because of loads of wastes received by it from domestic, municipal and industrial sources (Lateef 2004;Adewoye and Lateef 2004;Pal and Deb 2014;Azeez et al 2015). Most of these wastes have detrimental effects on environment, human health, agricultural produce, aquatic lives and are also known to be genotoxic (Bakare et al 2003;Lateef et al 2007).…”

Section: Introductionmentioning

confidence: 99%

“…However, it is carcinogenic causing hypothalamic cell apoptosis leading to hormonal imbalances. It has also been reported to cause eyes, skin, and respiratory tract irritations (Satapathy et al 2013;Pal and Deb 2014;Bhattacharyya et al 2014; 32 Page 2 of 12 Sulistina et al 2014;Shen et al 2015;Mahmoud et al 2015;Huang et al 2016). Wastewater containing Rh-B, therefore, needs to be effectively, efficiently and qualitatively treated before being discharged into the environment (Inyinbor et al 2015(Inyinbor et al , 2016a.…”

Section: Introductionmentioning

confidence: 99%

Novel biosynthesized silver nanoparticles from cobweb as adsorbent for Rhodamine B: equilibrium isotherm, kinetic and thermodynamic studies

et al. 2018

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This study has investigated the adsorption of Rhodamine B (Rh-B) dye on novel biosynthesized silver nanoparticles (AgNPs) from cobweb. The effects of contact time, initial pH, initial dye concentration, adsorbent dosage and temperature were studied on the removal of Rh-B and they significantly affected its uptake. Adsorption isotherms were evaluated using Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherm models. The adsorption process was best described by Langmuir isotherm with R 2 of 0.9901, indicating monolayer adsorption. The maximum adsorption capacity (q max ) of 59.85 mg/g showed that it has relatively high performance, while adsorption intensity showed a favourable adsorption process. Pseudo-secondorder kinetics fitted best the rate of adsorption and intra-particle diffusion revealed both surface adsorption and intra-particle diffusion-controlled adsorption process. Negative values of thermodynamic parameters (∆H°, ∆S° and ∆G°) indicated an exothermic and spontaneous adsorption process. The mean sorption energy (E) and activation energy (E a ) suggested the uptake of Rh-B onto AgNPs was chemical in nature (chemosorption).

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“…Organic dyes are natural or synthetic compounds which have been widely applied in a number of processing industries such as leather, textile, cosmetics, packaging, food, and paper industries [1,2]. There are more than 100,000 commercial dyes with an annual production of over 7 × 10 5 tons year −1 [3].…”

Section: Introductionmentioning

confidence: 99%

One-pot synthesis of S-doped Fe2O3/C magnetic nanocomposite as an adsorbent for anionic dye removal: equilibrium and kinetic studies

Khoshsang

Ghaffarinejad

Kazemi³

et al. 2017

J Nanostruct Chem

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Novel S-doped Fe 2 O 3 /C nanocomposite was synthesized via a one-pot hydrothermal method and was used for the first time as an efficient adsorbent for Congo red dye (CR) removal from water solution. The obtained catalyst was characterized by various methods including Fourier transform infrared spectroscopy, energy dispersive X-ray spectrometry, vibration sample magnetometry, X-ray diffraction and field emission scanning electron microscopy. To improve the adsorption performance, some important parameters affecting dye removal were optimized such as adsorbent dosage, contact time, solution pH, initial dye concentration and ionic strength. At the optimum conditions, the maximum capacity of adsorption for this nanocomposite was 270.2 mg g −1 , which is better than other magnetic adsorbents for CR removal. The results of adsorption isotherm were matched with Langmuir model. Kinetic tests show that adsorption experimental data were best fitted by pseudo-first-order model. Graphical abstract

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Efficient adsorption of congo red dye from aqueous solution using green synthesized coinage nanoparticles coated activated carbon beads

Cited by 49 publications

References 32 publications

Performance study on algal alginate as natural coagulant for the removal of Congo red dye

Performance study on algal alginate as natural coagulant for the removal of Congo red dye

Novel biosynthesized silver nanoparticles from cobweb as adsorbent for Rhodamine B: equilibrium isotherm, kinetic and thermodynamic studies

One-pot synthesis of S-doped Fe2O3/C magnetic nanocomposite as an adsorbent for anionic dye removal: equilibrium and kinetic studies

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