Facile synthesis, characterization and application of magnetic Fe3O4-coir pith composites for the removal of methyl violet from aqueous solution: Kinetics, isotherm, thermodynamics and parametric optimization

Sarkar, Sanjay; Tiwari, Nitika; Behera, Meerambika; Chakrabortty, Sankha; Jhingran, Kavya; Sanjay, Kali; Banerjee, Shirsendu; Tripathy, Suraj K.

doi:10.1016/j.jics.2022.100447

Cited by 10 publications

(7 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interestingly, the Q eq values related to this adsorbent are much higher than those of most of the adsorbents with a large surface area in the current literature (Table 6). 47,57,64,66–77 …”

Section: Resultsmentioning

confidence: 99%

“…56 Interestingly, the Q eq values related to this adsorbent are much higher than those of most of the adsorbents with a large surface area in the current literature (Table 6). 47,57,64,[66][67][68][69][70][71][72][73][74][75][76][77] Adsorption isotherm models are applied for examining the adsorbent's adsorption behavior in equilibrium conditions (Fig. 10(b)).…”

Section: Pani@cuo-zt Applications Electrochemical Proprietiesmentioning

confidence: 99%

“…44,45 Dyes such as malachite green (MG) and methyl violet (MV) are widely applied in the textile and dyeing industries. [44][45][46][47] Both dyes are highly water-soluble, which can have a long-term effect on ecological sustainability. 44 Therefore, their removal through an efficient process is crucial before they are released into the aquatic environment.…”

Section: Introductionmentioning

confidence: 99%

“…Over the last decade, there has been a sharp increase in the use of great quantities of dyes, which might be a significant source of water contamination around the world. 44,45 Dyes such as malachite green (MG) and methyl violet (MV) are widely applied in the textile and dyeing industries 44–47 . Both dyes are highly water‐soluble, which can have a long‐term effect on ecological sustainability 44 .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Preparation of ternary polyaniline@CuO−zeolite composite, discussion of characteristics, properties and their applications in supercapacitors and cationic dye adsorption

Dahou

Belardja

Moulefera

et al. 2023

Polymer International

View full text Add to dashboard Cite

Copper oxide−zeolite (CuO−ZT) reinforced polyaniline (PANI) matrices were prepared by in situ oxidative polymerization and the samples were characterized by X‐ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, XRD, TGA, UV–visible spectrophotometry, SEM and Brunauer–Emmett–Teller theory; the optical bandgap was also evaluated. Moreover, the synthesis and exploration of electrodes are increasingly being considered for the development of conducting‐polymer‐based supercapacitors, which has attracted significant interest in energy conversion and storage technology. Here, hybrid materials used in the preparation of the electrode materials on the capacitive properties were investigated. It is found that the PANI@CuO exhibits a high specific capacitance of 311.5 F g−1 at 1.0 A g−1 current density between 0.0 and 1.0 V compared to PANI@CuO−ZT (222.7 F g−1). Further, the PANI@CuO presented an excellent cycling stability at 1.0 A g−1 (1500 cycles; 81.9%) in a two‐electrode system. Accordingly, producing a PANI matrix on CuO presented a simple and viable way to ameliorate the capacitive performance of the supercapacitor. Conversely, the adsorptive removal of malachite green and methyl violet dyes by PANI@CuO−ZT adsorbent could be described by the pseudo‐first‐order and Temkin models. The maximum adsorptive capacity of malachite green and methyl violet dyes was 249.7 and 198.2 mg g−1, respectively. © 2023 Society of Industrial Chemistry.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Pani@cuo-zt Applications Electrochemical Proprietiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Preparation of ternary polyaniline@CuO−zeolite composite, discussion of characteristics, properties and their applications in supercapacitors and cationic dye adsorption

Dahou

Belardja

Moulefera

et al. 2023

Polymer International

View full text Add to dashboard Cite

show abstract

“…Thermodynamic research included the study of Δ G , Δ H , and Δ S in the adsorption process, so that we could find out whether the adsorption process occurs spontaneously and analyze the forces driving the adsorption. Thermodynamic parameters calculated by formula (8) [30] (8) Δ G = − R T ln K , ln K T 2 K T 1 = − Δ H R 1 T 2 − 1 T 1 , Δ G = Δ H − T Δ S , where R was the gas constant, with a value of 8.134 J/(molK), and T was the Kelvin temperature (t). The normalln K value was the straight line intercept obtained by plotting ln ( Q e / C e ) against Q e .…”

Section: Methodsmentioning

confidence: 99%

Study on Phosphorus Adsorption Performance of Inorganic Modified Green Mudstone

Shi

Xiong

et al. 2023

Adsorption Science & Technology

View full text Add to dashboard Cite

Inorganic modified green mudstone (MGM) was prepared from the green mudstone (GM) residue of Fushun West Open Pit Mine and characterized by XRF, XRD, FTIR, and SEM of GM and MGM. According to the calculation of pore size and the BET equation, the pore size and specific surface area of the MGM were larger. The results of adsorption kinetics and isothermal adsorption experiments showed that the adsorption capacity of MGM for phosphate increased from 0.1 mg/g to 0.71 mg/g, which was obviously better than that of GM. The GM and MGM accorded with the quasi-second-order kinetic model. The isothermal adsorption data of GM accorded with the Freundlich model, and the isothermal data of MGM accorded with the Langmuir model, which indicated that the model of GM and MGM was an adsorption process from a double layer to a single layer. Thermodynamic data showed that the increase in temperature was beneficial to the adsorption of MGM. The internal diffusion model showed that due to the change of pore size structure after modification, the number of adsorption sites that could provide phosphate was increased, and at the same time, the change of internal elements led to the extension of the chemical reaction time by 700 min. Because of the ligand exchange and electrostatic interaction between phosphate, GM, and MGM, the adsorption results showed that acidity was better than alkalinity. To improve the recycling ability of MGM, hydrochloric acid with a concentration of 0.1 mol/L was determined as the best phosphorus resolving agent, and the resolving rate was still close to 80% after five cycles. The results showed that the MGM could be a promising adsorbent for the removal of phosphorus, providing a new way for resource utilization of mining waste residue.

show abstract

Chemical activation of phosphogypsum exhibits enhanced adsorption of malachite green from aqueous solution due to porosity refinement

Panda,

Upadhyaya,

Kumar

et al. 2024

Front. Chem. Sci. Eng.

View full text Add to dashboard Cite

Facile synthesis, characterization and application of magnetic Fe3O4-coir pith composites for the removal of methyl violet from aqueous solution: Kinetics, isotherm, thermodynamics and parametric optimization

Cited by 10 publications

References 62 publications

Preparation of ternary polyaniline@CuO−zeolite composite, discussion of characteristics, properties and their applications in supercapacitors and cationic dye adsorption

Preparation of ternary polyaniline@CuO−zeolite composite, discussion of characteristics, properties and their applications in supercapacitors and cationic dye adsorption

Study on Phosphorus Adsorption Performance of Inorganic Modified Green Mudstone

Chemical activation of phosphogypsum exhibits enhanced adsorption of malachite green from aqueous solution due to porosity refinement

Contact Info

Product

Resources

About