Cellulose acetate-zirconium (IV) phosphate nano-composite with enhanced photo-catalytic activity

作者：Gupta Vinod Kumar^*; Pathania Deepak; Singh Pardeep; Rathore Bhim Singh; Chauhan Priyanka

来源：Carbohydrate Polymers, 2013, 95(1): 434-440.

DOI：10.1016/j.carbpol.2013.02.045

• Cellulose acetate
• Zirconium (IV) phosphate
• Nanocomposite
• Ion exchange property
• Photocatalysis

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 Pb2+ and Zn2+ 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.

• 出版日期2013-5-5
• 单位中国石油大学（北京）