5th MacroTrend Conference on Energy and Sustainability Paris 2017 Polymeric Materials Team, Laboratory of Materials Valorization Abdelhamid Ibn Badis University of Mostaganem, Algeria. 5th MacroTrend Conference on Energy and Sustainability Paris 2017 Design and Synthesis of a Dendritic Polymer as a Powerful Anion Exchanger for Efficient Removal of Acid Dyes from Water Presented by : Melle. BENDJELLOUL Meriem Directed by : Mr. ELANDALOUSSI El Hadj  

Plan of work Introduction. General information on the adsorbents. General information on the dyes. Experimental part. Results and discussions. Conclusion.

Chemical Precipitation INTRODUCTION industries Industrial wastes Water pollution Treatment methods Chemical Precipitation Membrane Filtration adsorption POA The ionic exchange Activated carbon Polymer

The DENDRIMERS (POLYMER HYPERBRANCHE) The dendrimers and the dendrons are assimilable arborescent macromolecules has polymers but of which size, molar mass and reactivity can be rigorously controlled during the synthesis. The dendrimers is classified among three-dimensional polymers highly ramified. Schematic representation of a dendrimer and a dendron

Dendritic architecture According to Tomalia and Fréchet, macromolecular architectures can be divided into four large families : linear, ramified, réticulés polymers and, more recently, dendritic polymers. Classification of macromolecular architectures

GENERAL INFORMATION ON THE ELIMINATED DYES indigo Carmin λmax = 610 nm λmax = 610 nm M = 466.35 g mol–1 M = 960.81 g mol–1 Evans Bleu

1-SYNTHESIS OF QTEAS HYPERBRANCH POLYMER experimental part 1-SYNTHESIS OF QTEAS HYPERBRANCH POLYMER

Reaction pathway of the Synthesis of the QTEAS 1-synthesis of QTEAS   Reaction pathway of the Synthesis of the QTEAS

2-CHARACTERIZATION OF THE HYPERBRACHE POLYMER QTEAS

2-1-SEM images of QTEAS Hyperbranched Polymer.

2-2-Spectrum NMR 13C OF qteas 250 200 150 100 50 -50 ( C H 2 ) 8 O N 3 I 173.7 ppm 59.9 50.4 30.7 ppm d (ppm)

3-Application of Hyperbranched Polymer in the Removal of Dyes CARMIN INDIGO AND BLUE Evans

3-1-REMOVAL OF ANIONIC Dyes iC & eB Kinetic study. pH effect. Adsorption isotherms. Study of the effect of the temperature. The influence of the ionic strength. Regeneration and reuse of the material.

4-RESULTS AND DISCUSSIONS FOR the ELIMINATION Of Two dyes INDIGO CARMINE and Evans Blue

4-1-KINETIC STUDY Kinetics of adsorption of IC and EB, [IC] and [EB] = 50mg/l, pH = 6.7, stirring time from 10 to 1440min T%= 99.84 et 99.35% IC et EB respectively. 180min 360min

4-1-1-modeling of the kinetics Linear model of pseudonym first order: Linear model of pseudonym second order:

4-1-2-The parameters of the two models applied to the adsorption of IC and EB by hyperbranched polymer qteas Pseudo-first order model Pseudo-second dyes qe, exp (mg.g-1) K1 (min-1) qe,cal R2 K2 (g.mg-1 min-1) IC 49.92 0.025 30.48 0.884 4.03 10-3 50.15 0.9999 EB 49.67 0.011 32.77 0.941 8.93 10-4 50.65

Effect of pH on the adsorption of IC and EB, 4-2-EFFET OF the pH Effect of pH on the adsorption of IC and EB, [IC] et [EB] = 50mg/l, pH= 2 a 10. .

4-3-ISOTHERMAL ADSORPTION Adsorption isotherms of IC and EB, [IC] and [EB] = 50 a 500mg/l

4-3-1-Models Applied to Adsorption Isotherm Results Langmuir Isotherm : Freundlich Isotherm :

Constants of Freundlich 4-3-2-Parameters of the two models applied to adsorption of Indigo Carmin and Evans blue by The hyperbranched polymer qteas Constants of Langmuir Constants of Freundlich dyes Qmax (mg g−1) b (L mg−1) R2 KF (L g−1) 1/n IC 213.22 0.42 0.999 146.05 0.07 0.911 EB 214.13 0.32 121.88 0.11 0.947

4-4- THE STUDY OF THE TEMPERATURE EFFECT The values of the thermodynamic parameters of the sorption of IC and Eb by hyperbranched polymer QTEAS ΔG (KJ mol–1) dyes ΔH (KJ mol–1) ΔS (J K–1mol–1) 298 K 308 K 318 K IC – 50.495 – 62.893 – 31.752 – 31.123 – 30.495 EB – 87.714 – 193.715 – 29.986 – 28.049 – 26.112

 4-5- the Influence of ionic strength on the adsorption process of IC and eb by qteas Effect of NaCl on adsorption of IC and EB, [IC] et [EB] = 50mg/l, [NaCl] =0.1 a 1 mol/l.

4-6-Regeneration and Reuse of QTEAS [IC] et [EB] = 50mg/l = 100mg/l, [NaOH]=1M.

INDIGO CARMIN T%=99.84 % EVANS BLEU T%=99.35% conclusion  the synthesis of a hyperbranched polymer QTEAS INDIGO CARMIN T%=99.84 % EVANS BLEU T%=99.35%

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