title: Surface ion-imprinted amino-functionalized cellulosic cotton fibers for selective extraction of Cu(II) ions.
abstract: Surface ion-imprinted amino-functionalized cellulosic fibers (Cu-ABZ) were manufactured for efficient selective adsorption of Cu(2+) ions. The chemical modification steps had been characterized utilizing elemental analysis; Fourier transforms infrared (FTIR) along with wide angle X-ray diffraction (XRD) spectroscopy. Also, the morphological structure of the ion-imprinted and the non-imprinted (NI-ABZ) fibers were visualized and compared with that of the native cotton fibers using scanning electron microscope (SEM). In addition, the coordination mode by which the Cu(2+) ions bonded to the active sites were examined by both FTIR and X-ray photo electron spectra (XPS). Both Cu-ABZ and NI-ABZ were implemented in batch experiments for optimizing the conditions by which the Cu(2+) ions can be selectively removal from aqueous medium and pH 5 was the optimum for the metal ion extraction. Moreover, the kinetics and isotherm studies revealed that the adsorption data fitted with pseudo-second-order kinetic and Langmuir models with estimated maximum adsorption capacity 93.6mg/g. Also, the reusability studies indicated that the prepared ion-imprinted adsorbent maintains more than 95% of its original activity after fifth generation cycle.
authors: Chemistry Department, Deanery of Academic Services, Taibah University, Yanbu Branch, Yanbu El-Bahr, Saudi Arabia; Chemistry Department, Drexel University, Philadelphia, PA 19104, USA; Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt. Electronic address: monierchem@yahoo.com.
authors: M
authors: M
authors: Monier
authors: Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt; Chemistry Department, Virginia Commonwealth University, Richmond, VA 23284, USA.
authors: Amr A
authors: AA
authors: Ibrahim
authors: Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt.
authors: M M
authors: MM
authors: Metwally
authors: Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt.
authors: D S
authors: DS
authors: Badawy
mesh_terms: D000327:Adsorption; D002482:Cellulose / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D032561:Cotton Fiber; D006863:Hydrogen-Ion Concentration; D007477:Ions / Q000737:chemistry*; D007700:Kinetics; D008958:Models, Molecular; D017550:Spectroscopy, Fourier Transform Infrared; D013816:Thermodynamics; D014961:X-Ray Diffraction
chemical_list: D007477:Ions; D003300:Copper; D002482:Cellulose
keywords: Copper ion; Cotton; Grafting; Ion-imprinting; Nitrobenzaldehyde