The Removal of Brilliant Green Dye from Aqueous Solution Using Nano Hydroxyapatite/Chitosan Composite as a Sorbent

Ragab, Ahmed H.; Ahmed, Inas A.; Bader, Dina M. D.

doi:10.3390/molecules24050847

Cited by 93 publications

(34 citation statements)

References 37 publications

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“…Thus, these results affirmed that the adsorption of BG onto GO-PANI followed the pseudo-second-order kinetics. Similar outcomes for BG adsorption were previously observed [ 35 ].…”

Section: Resultssupporting

confidence: 89%

“…Therefore, the concentration greatly influences the degree and rate of BG adsorption onto GO-PANI. Similarly to previous studies on BG onto poly (AN-co-VP)/zeolite composite [ 34 ], and nano hydroxyapatite/chitosan composite [ 35 ].…”

Section: Resultsmentioning

confidence: 63%

“…Therefore, it was confirmed that no transmission of BG in the plane of surface and adsorption of BG onto the GO-PANI surface occurred homogeneously with constant energy. A comparison of GO-PANI with previously reported adsorbents for BG removal, along with the applied experimental conditions, is presented in Table 3 [ 6 , 34 , 35 , 43 , 44 , 45 ].…”

Section: Resultsmentioning

confidence: 99%

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Carbon Based Polymeric Nanocomposites for Dye Adsorption: Synthesis, Characterization, and Application

et al. 2021

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Agglomeration and restacking can reduce graphene oxide (GO) activity in a wide range of applications. Herein, GO was synthesized by a modified Hummer’s method. To minimize restacking and agglomeration, in situ chemical oxidation polymerization was carried out to embed polyaniline (PANI) chains at the edges of GO sheets, to obtain GO-PANI nanocomposite. The GO-PANI was tested for the adsorptive removal of brilliant green (BG) from an aqueous solution through batch mode studies. Infrared (FT-IR) analysis revealed the dominance of hydroxyl and carboxylic functionalities over the GO-PANI surface. Solution pH-dependent BG uptake was observed, with maximum adsorption at pH 7, and attaining equilibrium in 30 min. The adsorption of BG onto GO-PANI was fit to the Langmuir isotherm, and pseudo-second-order kinetic models, with a maximum monolayer adsorption capacity (qm) of 142.8 mg/g. An endothermic adsorption process was observed. Mechanistically, π-π stacking interaction and electrostatic interaction played a critical role during BG adsorption on GO-PANI.

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“…Thus, these results affirmed that the adsorption of BG onto GO-PANI followed the pseudo-second-order kinetics. Similar outcomes for BG adsorption were previously observed [ 35 ].…”

Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 63%

Section: Resultsmentioning

confidence: 99%

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Carbon Based Polymeric Nanocomposites for Dye Adsorption: Synthesis, Characterization, and Application

et al. 2021

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“…e FTIR spectrum of the blank NSG nanocomposite shows characteristic bands at around 3457, 1635, 1350, 1095, 792, and 466 cm − 1 . Journal of Chemistry e broad absorption peak at 3457 cm − 1 was due to the O-H stretching vibration that resulted from the hydroxylation of OH nanoparticle surfaces by adsorbed water molecules [33]. e 1635 cm − 1 peak corresponds to the H-O-H bending vibration.…”

Section: Ftir Studymentioning

confidence: 99%

Environmentally Friendly Mesoporous Nanocomposite Prepared from Al-Dross Waste with Remarkable Adsorption Ability for Toxic Anionic Dye

Ahmed

Al‐Radadi

Hussein

et al. 2019

Journal of Chemistry

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In this work, a mesoporous nanocomposite composed of nanogibbsite (α-Al(OH)3) and nanosilica was prepared. Gibbsite nanoparticles (GNPs) with a crystal size of ≈38 nm were prepared from Al-dross industrial waste products in an acidic environment at 100°C. Nanosilica (NS) with a crystal size of ≈13 nm was prepared from sodium silicate using dilute hydrochloric acid. The deposition of nanosilica onto gibbsite particles was investigated. The mesoporous silica-gibbsite (NSG) nanocomposite was examined by evaluating its ability to adsorb the toxic anionic dye Eriochrome black T (EBT) from aqueous solution. The compositional and morphological properties of NSG nanocomposites were studied by means of the FTIR spectroscopy, X-ray fluorescence (XRF), XRD, SEM, and TEM techniques. The effect of dye concentration, pH, adsorbent dose, contact time, and temperature was investigated. The sorption models, the isotherms, and the thermodynamic parameters ΔHo, ΔGo, and ΔSo were evaluated. The N2 adsorption-desorption isotherms revealed that mixing the two prepared materials (NS and GNPs) to form the NSG nanocomposite resulted in good properties (a surface area of 62.34 m2·g−1, a pore radius of 22.717 nm, and a pore volume of 0.7081 cm3·g−1). The results show that the prepared NSG nanocomposite has a remarkable ability to adsorb toxic anionic dyes.

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“…Among them, brilliant green (BG) is a typical example of toxic cationic dye extensively used in textile dyeing and paper printing [ 7 ], with harmful effects on humans. It may cause dermatitis upon skin contact and irritations to both the gastrointestinal and respiratory tracts in humans, resulting in a cough and shortness of breath [ 8 , 9 ]. Indeed, colored wastewater causes environmental problems along with serious damage to the aquatic ecosystem and groundwater.…”

Section: Introductionmentioning

confidence: 99%

On the Suitability of Almond Shells for the Manufacture of a Natural Low-Cost Bioadsorbent to Remove Brilliant Green: Kinetics and Equilibrium Isotherms Study

Melhaoui

Miyah

Kodad

et al. 2021

The Scientific World Journal

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Almond production generates a large number of coproducts, but the farmer’s interest mainly focuses on the nutritional and commercial aspects of the kernel for getting the best return from their harvests. Thus, almond coproducts such as almond shells that represent more than 70% of biomass remain underexplored. In this work, the suitability of almond shell powder (ASP) as a natural low-cost adsorbent was evaluated in the adsorption of brilliant green dye (BG), which is known as a chemical pollutant. Brunauer–Emmett–Teller (BET) method, for the determination of specific surface area, Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) techniques were performed to characterize the ASP adsorbent. The batch adsorption kinetic study for the removal of BG dye was carried out by varying pH, temperature, initial concentration of the dye, bioadsorbent dose, and contact time. It was found that 98% of BG dye is removed under the following optimal experimental conditions: ASP bioadsorbent dose of 1 g/L at T = 25°C, pH = 6.8, and C0 = 1 g/L, which proves that ASP can be used as an excellent low-cost bioadsorbent for the removal of BG dye from wastewater. The experimental isotherm data were analyzed using Freundlich and Langmuir models. The results show the best correlation with single-layer adsorption, and the adsorption kinetics seems to follow a pseudo-second-order model.

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The Removal of Brilliant Green Dye from Aqueous Solution Using Nano Hydroxyapatite/Chitosan Composite as a Sorbent

Cited by 93 publications

References 37 publications

Carbon Based Polymeric Nanocomposites for Dye Adsorption: Synthesis, Characterization, and Application

Carbon Based Polymeric Nanocomposites for Dye Adsorption: Synthesis, Characterization, and Application

Environmentally Friendly Mesoporous Nanocomposite Prepared from Al-Dross Waste with Remarkable Adsorption Ability for Toxic Anionic Dye

On the Suitability of Almond Shells for the Manufacture of a Natural Low-Cost Bioadsorbent to Remove Brilliant Green: Kinetics and Equilibrium Isotherms Study

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