Synthesis and characterization of polyaniline-based biocomposites and their application for effective removal of Orange G dye using adsorption in dynamic regime

Imgharn, Abdelaziz; Ighnih, Hamza; Hsini, Abdelghani; Naciri, Yassine; Laabd, Mohamed; Kabli, Hassan; Elamine, Maria; Lakhmiri, Rajae; Souhail, Badredine; Albourine, Abdallah

doi:10.1016/j.cplett.2021.138811

Cited by 66 publications

(14 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The adsorption percentage R (%) and the adsorption capacity Qe (mg/g) were determined by the equations below (Hsini et al 2021c;Imgharn et al 2021):…”

Section: Batch Experimentalmentioning

confidence: 99%

Synthesis and characterization of arginine-doped heliotrope leaves with high clean-up capacity for crystal violet dye from aqueous media

Brini

Hsini

Naciri

et al. 2021

Water Science and Technology

Self Cite

View full text Add to dashboard Cite

Novel an arginine-modified Heliotrope leaf (Arg@HL) was used as adsorbent for the crystal violet (CV) dye adsorption in a batch process. The physicochemical and morphological composition of Arg@HL were characterized by field-emission-scanning-electron-microscopy (FE-SEM), Fourier transforms infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC). The experiments were carried out to investigate the factors that influence the dye uptake by the adsorbent, such as the contact time under agitation, adsorbent amount, initial dye concentration, temperature and pH of dye solution. The optimum conditions of adsorption were found on the batch scale as followed: CV concentration of 20 mg·L−1, an amount of 0.75 g·L−1 of the adsorbent, 90 min contact time, 6 pH and 25 °C temperature for Arg@HL. The results confirmed a second-order model explaining the dye crystal violet's adsorption's kinetics by Arg-Heliotrope leaves. The Langmuir model effectively defines the adsorption isotherms. The results revealed that the Arg@HL has the potential to be used as a low-cost adsorbent for the removal of CV dye from aqueous solutions.

show abstract

“…The adsorption percentage R (%) and the adsorption capacity Qe (mg/g) were determined by the equations below (Hsini et al 2021c;Imgharn et al 2021):…”

Section: Batch Experimentalmentioning

confidence: 99%

Synthesis and characterization of arginine-doped heliotrope leaves with high clean-up capacity for crystal violet dye from aqueous media

Brini

Hsini

Naciri

et al. 2021

Water Science and Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…This SD powder was washed with distilled water and then dried in an oven at 80°C for 24h. PANI composite was synthesized applying in situ polymerization of aniline monomer in the occurrence of SD particles (Imgharn et al 2021). In a typical procedure, 1g of SD powder and 1 mL of distilled aniline monomer were added to 80 mL of HCl (1 M).…”

Section: Engineering Of Alginate-pani@sd Biobeadsmentioning

confidence: 99%

“…Among the dyes, Orange G (OG) is generally used in textile tanneries. OG dye is one of the azo dyes and could be cause irritation to the skin, eyes and mucous membranes, respiratory organs and cancer (Imgharn et al 2021). Therefore, the elimination of dyes from contaminated water is necessary before their release into the natural environment.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Engineering of Calcium Alginate- PANI@Sawdust Wood hydrogel Bio-beads for the Removal of the Sulfonate Groups-Containing Orange G dye from Aqueous Solution

Imgharn

Aarab

Hsini

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

The aim of this work is to investigate the adsorption performance of orange G (OG) dye from aqueous solutions employing PANI@sawdust biocomposite enrobed by calcium-alginate biobeads (Alg-PANI@SD). The as-prepared adsorbent was characterized by scanning-electron-microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and Fourier transforms infrared (FT-IR) spectroscopy, and used to remove Orange G dye from water. batch tests were performed as a function of adsorbent dosage, pH, contact time, interfering ions and initial OG dye concentration. Experimental results show that the kinetic model of pseudo-first-order (PFO) and Freundlich isotherm provided a good fitting of the whole experimental data. The results revealed that the as-prepared tricomposite Alg-PANI@SD, has the potential to be applied as a low-cost adsorbent for the adsorption of OG dye from aqueous media.

show abstract

“…From the scientific and technological point of view, PANI is selected as an active material because of its easy preparation, efficiency, and broad effectiveness [33]. It has been shown that PANI is very well used in combination with hybrid materials to improve the properties, such as PANI/Cellulose [34], PANI/Walnut shell [35], PANI@Almond shell [36], PANI/Chitosan [37], and PANI modified almond [38].…”

Section: Introductionmentioning

confidence: 99%

Application of Activated Carbon Adsorbents Prepared from Prickly Pear Fruit Seeds and a Conductive Polymer Matrix to Remove Congo Red from Aqueous Solutions

Lahreche

Moulefera

Kebir

et al. 2022

Fibers

View full text Add to dashboard Cite

The present work was aimed to evaluate the adsorption properties of activated carbons based on prickly pear seeds (PPS) and conductive polymer matrix based on polyaniline (PANI) for the removal of anionic Congo red (CR) dye from aqueous solutions. The adsorbent was prepared by polymerization of aniline in the presence of activated PPS by phosphoric acid and sodium hydroxide. The samples were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and the Brunauer–Emmett–Teller (BET) methods. The adsorption kinetics were studied using UV-visible (UV/Vis) spectroscopy. The characterization data suggest that the adsorption of the Congo red dye is enhanced because PANI chain molecules, which are especially accountable for removal through π—π interaction and H-bonding with the CR, are adsorbed/tethered onto the acid-activated PPS (PPSH), and thus surmount the mass transfer limitation by being best exposed to the CR-adsorbed molecule. The adsorption kinetics follows the pseudo-second order process. The correlation coefficients (R2) for Langmuir, Freundlich and Tempkin showed that the adsorption values obey Freundlich and Tempkin isotherm models. Moreover, the isotherm was most accurately described by the Freundlich model, and the maximum removal percentage was calculated to be 91.14% under optimized conditions of pH 6.6, 1 g/L of adsorbent dosage, and an initial CR dye concentration of 20 mg·L−1. Importantly, the hybrid adsorbent exhibited the highest adsorption capacity (80.15%) after five cycles of the adsorption–desorption process. Thermodynamic parameters, such as entropy changes, enthalpy changes and Gibbs free energy, were also evaluated. These results indicated that the PANI matrix can generally be better utilized for the removal of Congo red dye when appropriately dispersed on the surface of suitable support materials. These results provide a new direction to promote the separable adsorbents with increasing performance for adsorption of dye impurities from wastewater.

show abstract

Synthesis and characterization of polyaniline-based biocomposites and their application for effective removal of Orange G dye using adsorption in dynamic regime

Cited by 66 publications

References 40 publications

Synthesis and characterization of arginine-doped heliotrope leaves with high clean-up capacity for crystal violet dye from aqueous media

Synthesis and characterization of arginine-doped heliotrope leaves with high clean-up capacity for crystal violet dye from aqueous media

Engineering of Calcium Alginate- PANI@Sawdust Wood hydrogel Bio-beads for the Removal of the Sulfonate Groups-Containing Orange G dye from Aqueous Solution

Application of Activated Carbon Adsorbents Prepared from Prickly Pear Fruit Seeds and a Conductive Polymer Matrix to Remove Congo Red from Aqueous Solutions

Contact Info

Product

Resources

About