Nitrilotriacetic acid functionalized Adansonia digitata biosorbent: Preparation, characterization and sorption of Pb (II) and Cu (II) pollutants from aqueous solution

Adewuyi, Adewale; Pereira, Fabiano Vargas

doi:10.1016/j.jare.2016.10.001

Cited by 31 publications

(9 citation statements)

References 40 publications

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“…All of these interpretations allowed the affirmation that the diffusion of Cr(VI) ions through the membrane phases of the elaborated PIM membranes occurs according to the mechanism by successive jumps of the substrate molecules, from one active site to another in the EA, with the formation of host–guest-type complexes. Similar results have also been reported by other authors’ previously. − …”

Section: Resultssupporting

confidence: 93%

Polymer Inclusion Membranes for Selective Extraction and Recovery of Hexavalent Chromium Ions from Mixtures Containing Industrial Blue P3R Dye

Chaouqi

Ouchn

Touarssi³

et al. 2019

Ind. Eng. Chem. Res.

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The processes for the extraction and removal of Cr(VI) ions using the polymer inclusion membranes (PIMs) that contained nitrilotriacetic acid (NTA) or tris(2-aminoethyl)amine (TAM) as the extractive agent were reported in this study. Each PIM was prepared and characterized using SEM and FTIR techniques to understand the correlation between its structure (morphology and composition) and its performance. The effects of several factors were studied. The parameters permeability, P, initial flux, J 0 , association constant, K ass , apparent diffusion coefficient, D*, and activation parameters (energy, E a , enthalpy, ΔH ‡ , and entropy, ΔS ‡ ) were determined and quantified using the kinetic and thermodynamic models. Therefore, we can affirm that the mechanisms of these oriented processes are governed kinetically rather than energetically. The extractive agent TAM (P = 35.26 × 10 −7 cm 2 •s −1 , D* = 11.5326 × 10 −5 cm 2 •s −1 , E a = 6.03 kJ mol −1 , and ΔH ‡ = 3.53 kJ mol −1 ) was determined to be better for the selective extraction process of Cr(VI) ions in comparison to its counterpart NTA (P = 22.49 × 10 −7 cm 2 •s −1 , D* = 9.58 × 10 −5 cm 2 •s −1 , E a = 7.12 kJ mol −1 , and ΔH ‡ = 7.12 kJ mol −1 ). Therefore, the membranes developed using the TAM agent were adopted further to conduct experiments related to the processes of selective extraction and removal of Cr(VI) ions from the mixtures containing industrial P3R dye. The results of these experiments were conclusive and indicated a total and selective separation of the Cr(VI) ions and the P3R dyes with the observance of a clear improvement in the P, J 0 , and D* parameters and better membrane performance.

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Section: Resultssupporting

confidence: 93%

Polymer Inclusion Membranes for Selective Extraction and Recovery of Hexavalent Chromium Ions from Mixtures Containing Industrial Blue P3R Dye

Chaouqi

Ouchn

Touarssi³

et al. 2019

Ind. Eng. Chem. Res.

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“…e second weight loss of 42.89% within the temperature range of 200°C-300°C may be due to the predominant decomposition of hemicelluloses, followed by a third high weight loss of 30.64% in the range of 300°C-350°C which was attributed to decomposition of cellulose. e last small weight loss of 2.52% above 350°C and located around 438°C was mostly due to decomposition of lignin [35][36][37][38].…”

Section: Ermogravimetric-hyperdifferential Scanning Calorimetry (Tg-hmentioning

confidence: 99%

Indigo Carmine and 2,6-Dichlorophenolindophenol Removal Using Cetyltrimethylammonium Bromide-Modified Palm Oil Fiber: Adsorption Isotherms and Mass Transfer Kinetics

Ngaha

Njanja

Doungmo

et al. 2019

International Journal of Biomaterials

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In the present work, the usefulness of cetyltrimethylammonium bromide-modified palm oil fiber (CTAB-modified POF) for the removal of indigo carmine (IC) and 2,6-dichlorophenolindophenol (2,6-DCPIP) from aqueous solutions was investigated. Raw, NaOH-treated, and CTAB-modified POF were characterized by Fourier-transform infrared (FT-IR) spectroscopy, elemental analysis, thermogravimetric-hyperdifferential scanning calorimetric (TG-HDSC) analysis, X-ray diffraction (XRD), and scanning electron microscopy (SEM). e adsorption studies of IC and 2,6-DCPIP were performed in batch mode using CTAB-modified POF. e results showed that equilibrium was attained after a contact time of 30 minutes for IC and 20 minutes for 2,6-DCPIP. e maximum capacity of adsorption was obtained at pH � 2. e capacity of adsorption considerably increased with modified biosorbents and with increasing initial concentration of dyes. e ionic strength favors the increasing adsorption capacity of IC and does not affect the adsorption capacity of 2,6-DCPIP. e percentage of adsorption increased with increasing mass of the biosorbents. e nonlinear regression of adsorption isotherms showed that Freundlich (r 2 � 0.953; χ 2 � 4.398) and Temkin (r 2 � 0.986; χ 2 � 1.196) isotherms are most appropriate to describe the adsorption of IC and 2,6-DCPIP on CTAB-modified POF, respectively. e maximum adsorption capacities determined by the Langmuir isotherm were 275.426 and 230.423 μmol·g − 1 for IC and 2,6-DCPIP, respectively. e linear regression of adsorption kinetics was best described by the pseudo-second-order model (R 2 ≥ 0.998). e diffusion mechanism showed that external mass transfer is the main rate controlling step. Desorption of the two dyes is favorable in the alkaline medium.

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“…The trend suggests that the higher number of functional groups correlates with a higher concentration of dissolved metal ions in solution i.e low precipitation of metal ions. The reactivity of the chemical compounds such as BCAs is in agreement with the literature that the BCAs have a high propensity of being able to use their functional groups (Adewuyi and Pereira, 2016;Bucheli-Witschel and Egli, 2001;Hassan and Al-Hashim, 2016).…”

Section: Icp-oessupporting

confidence: 88%

flow assurance problems in the geo-energy industry: microbial influenced corrosion, and precipitation of clays in reservoir acid stimulation

Madirisha

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Nitrilotriacetic acid functionalized Adansonia digitata biosorbent: Preparation, characterization and sorption of Pb (II) and Cu (II) pollutants from aqueous solution

Abstract: Graphical abstract

Cited by 31 publications

References 40 publications

Polymer Inclusion Membranes for Selective Extraction and Recovery of Hexavalent Chromium Ions from Mixtures Containing Industrial Blue P3R Dye

Polymer Inclusion Membranes for Selective Extraction and Recovery of Hexavalent Chromium Ions from Mixtures Containing Industrial Blue P3R Dye

Indigo Carmine and 2,6-Dichlorophenolindophenol Removal Using Cetyltrimethylammonium Bromide-Modified Palm Oil Fiber: Adsorption Isotherms and Mass Transfer Kinetics

flow assurance problems in the geo-energy industry: microbial influenced corrosion, and precipitation of clays in reservoir acid stimulation

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