Enhanced adsorption of Congo red on microwave synthesized layered Zn-Al double hydroxides and its adsorption behaviour using mixture of dyes from aqueous solution

Srilakshmi, Chilukoti; Thirunavukkarasu, Thangavel

doi:10.1016/j.inoche.2018.12.027

Cited by 31 publications

(6 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The adsorption method has been shown to be effective for the treatment of dye pollution, because it is easy to operate, economical, and efficient. One of the most important aspects of the adsorption process is the selection of the adsorbent [10].…”

Section: Introductionmentioning

confidence: 99%

Copper Aluminum Layered Double Hydroxide Modified by Biochar and its Application as an Adsorbent for Procion Red

Palapa

Juleanti

Normah

et al. 2020

J. of Wat. & Envir. Tech.

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Copper Aluminum Layered Double Hydroxide Modified by Biochar and its Application as an Adsorbent for Procion Red

Palapa

Juleanti

Normah

et al. 2020

J. of Wat. & Envir. Tech.

View full text Add to dashboard Cite

“…‘Analytically pure’ Congo Red dye was used without additional purification in this work. This azo dye is a common model sorbate that is often used in studies of the sorption properties of LDHs and their thermal degradation products (Li et al , 2016; Miandad et al , 2018; Zhang et al , 2018; Chilukoti & Thangavel, 2019).…”

Section: Methodsmentioning

confidence: 99%

“…'Analytically pure' Congo Red dye was used without additional purification in this work. This azo dye is a common model sorbate that is often used in studies of the sorption properties of LDHs and their thermal degradation products (Li et al, 2016;Miandad et al, 2018;Zhang et al, 2018;Chilukoti & Thangavel, 2019). Experimental X-ray diffraction (XRD) phase analysis was carried out using a Rigaku diffractometer with Cu-Kα radiation (λ =1.5406 Ǻ) with a scanning step of 0.02°2θ in the range 5-75°2θ.…”

Section: Methodsmentioning

confidence: 99%

Sorption of Congo Red anionic dye on natural hydrotalcite and stichtite: kinetics and equilibrium

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The adsorption mechanism of Orange II onto the LDH-R or LDH-R adsorbents might involve two paths: external surface adsorption of dye via electrostatic interactions or replacement of carbonate anions from the interlayer region by the sulfonate group via anionic exchange (Lei et al, 2017;Srilakshmi and Thirunavukkarasu, 2019). From the structural characterization of exhausted materials after adsorption, it could be concluded that, in this case, the mechanism of Orange II adsorption onto the studied materials involves electrostatic interactions.…”

Section: The Structural Characterization Of Exhausted Materials Aftermentioning

confidence: 96%

Adsorption of Orange II Onto Zn2Al–Layered Double Hydroxide Prepared From Zinc Ash

Tămaș

Cozma²,

Cocheci

et al. 2020

Front. Chem.

View full text Add to dashboard Cite

The dye industry is one of the largest water consuming industries, and at the same time generates large quantities of wastewaters. The resulting wastewaters require proper treatment before discharge, because the dye contents have a negative effect on the water body and organisms present in it. The most efficient treatment method for water containing dyes is represented by adsorption processes. The challenge with these adsorption processes is to develop new, efficient, viable, and economic adsorbent materials. Therefore, in the present paper, the performance of Zn2Al-layered double hydroxide, prepared from an industrial waste (zinc ash) as a zinc source, was investigated in the Orange II dye adsorption process. The Zn2Al-layered double hydroxide prepared from secondary sources presents similar morphological and structural characteristics as those prepared from analytical grade reagents. The influence of initial dye concentration, adsorption time, solid:liquid ratio, pH, and temperature was evaluated in order to confirm the benefit of this waste valorization. A comparison with the reference Zn2Al-layered double hydroxide prepared from analytical grade reagents was performed and the results show that due to the small presence of impurities, the material prepared from zinc ash shows better adsorption capacities (qmax,exp = 42.5 mg/g at 293 K) than the material prepared from reagents (qmax,exp = 36.9 mg/g at 293 K), justifying the utilization of secondary sources for layered double hydroxides preparation. The proposed treatment process presents advantages from both economic and environmental protection point of view.

show abstract

Enhanced adsorption of Congo red on microwave synthesized layered Zn-Al double hydroxides and its adsorption behaviour using mixture of dyes from aqueous solution

Cited by 31 publications

References 44 publications

Copper Aluminum Layered Double Hydroxide Modified by Biochar and its Application as an Adsorbent for Procion Red

Copper Aluminum Layered Double Hydroxide Modified by Biochar and its Application as an Adsorbent for Procion Red

Sorption of Congo Red anionic dye on natural hydrotalcite and stichtite: kinetics and equilibrium

Adsorption of Orange II Onto Zn2Al–Layered Double Hydroxide Prepared From Zinc Ash

Contact Info

Product

Resources

About