[1] Fatima Jinnah Women Univ, Dept Environm Sci, Mat & Environm Chem Lab, Lab E21, Rawalpindi 46000, Pakistan
[2] Univ Manchester, Photon Sci Inst, Sir Henry Royce Inst, Dept Mat, Alan Turing Bldg,Oxford Rd, Manchester M13 9PL, England
[3] King Saud Univ, Coll Sci, Dept Biochem, POB 2455, Riyadh 11451, Saudi Arabia