title: Cellulose acetate-zirconium (IV) phosphate nano-composite with enhanced photo-catalytic activity.
abstract: Cellulose acetate-zirconium (IV) phosphate nanocomposite (CA/ZPNC) was synthesized by sol-gel technique at pH 0-1 and was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy, Fourier infrared spectroscopy (FTIR) and thermal analysis (TGA/DTA/DSC). Ion exchange capacity, pH titration, elution concentration, elution behaviour, thermal stability and distribution coefficient were investigated to explore ion exchange behaviour of CA/ZPNC. The nanocomposite showed an ion-exchange capacity of 1.4 mequiv. g(-1) for Na(+) and was highly selective for Pb(2+) and Zn(2+) over many other metal ions. The photocatalytic activity of the CA/ZPNC was explored for degradation of a model Congo red dye from aqueous phase. 90% of dye was removed in 60 min of irradiation. Simultaneous adsorption and photocatalysis had synergetic effect on dye degradation.
authors.affiliation: Department of Chemistry, Indian Institute of Technology Rookree, Roorkee 247667, India. vinodfcy@gmail.com
authors.forename: Vinod Kumar
authors.initials: VK
authors.lastname: Gupta
authors.forename: Deepak
authors.initials: D
authors.lastname: Pathania
authors.forename: Pardeep
authors.initials: P
authors.lastname: Singh
authors.forename: Bhim Singh
authors.initials: BS
authors.lastname: Rathore
authors.forename: Priyanka
authors.initials: P
authors.lastname: Chauhan
mesh_terms: D002152:Calorimetry, Differential Scanning; D002384:Catalysis; D002482:Cellulose / Q000031:analogs & derivatives* / Q000737:chemistry; D007474:Ion Exchange; D008855:Microscopy, Electron, Scanning; D053761:Nanocomposites / Q000737:chemistry; D055668:Photochemical Processes; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry; D014961:X-Ray Diffraction; D015040:Zirconium / Q000737:chemistry*
chemical_list: C027006:zirconium phosphate; C005062:acetylcellulose; D002482:Cellulose; D015040:Zirconium