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- Title
Novel Porous Organic Polymer for High-Performance Pb(II) Adsorption from Water: Synthesis, Characterization, Kinetic, and Isotherm Studies.
- Authors
Melhi, Saad; Alosaimi, Eid H.; El-Gammal, Belal; Alshahrani, Wafa A.; El-Aryan, Yasser F.; Al-Shamiri, Hamdan A.; Elhouichet, Habib
- Abstract
The aim of the current study was to develop a novel triphenylaniline-based porous organic polymer (TPABPOP-1) by the Friedel–Crafts reaction for the efficient elimination of Pb(II) from an aqueous environment. XPS, FTIR, SEM, TGA, and 13C CP/MAS NMR analyses were applied to characterize the synthesized TPABPOP-1 polymer. The BET surface area of the TPABPOP-1 polymer was found to be 1290 m2/g. FTIR and XPS techniques proved the uptake of Pb(II) was successfully adsorbed onto TPABPOP-1. Using batch methods, Pb(II) ion adsorption on the TPABPOP-1 was studied at different equilibrium times, pH values, initial Pb(II) concentration, adsorption mass, and temperature. The outcomes exhibited that the optimum parameters were t: 180 min, m: 0.02 g, pH: 5, T: 308 K, and [Pb(II)]: 200 mg/L. Nonlinear isotherms and kinetics models were investigated. The Langmuir isotherm model suggested that the uptake of Pb(II) was favorable on the homogeneous surface of TPABPOP-1. Adsorption kinetics showed that the PFO model was followed. Pb(II) removal mechanisms of TPABPOP-1 may include surface adsorption and electrostatic attraction. The uptake capacity for Pb(II) was identified to be 472.20 mg/g. Thermodynamic factors exhibited that the uptake of Pb(II) was endothermic and spontaneous in standard conditions. Finally, this study provides effective triphenylaniline-based porous organic polymers (TPABPOP-1) as a promising adsorbent with high uptake capacity.
- Subjects
POROUS polymers; ADSORPTION kinetics; LANGMUIR isotherms; FRIEDEL-Crafts reaction; ATMOSPHERIC temperature; ELIMINATION reactions; LEAD removal (Water purification); ADSORPTION (Chemistry)
- Publication
Crystals (2073-4352), 2023, Vol 13, Issue 6, p956
- ISSN
2073-4352
- Publication type
Article
- DOI
10.3390/cryst13060956