The X-ray diffraction pattern of as-synthesised powder is shown in Fig. 1(a) where it is compared to that of pure ZnO. The majority of peaks are in agreement with hexagonal wurtzite ZnO. Apart from the ZnO diffraction peaks, the peaks at 2θ of 4.3, 8.7, 12.8, 33.1 and 59.2 were also detected in the pattern. These peaks agree well with the structure of Zn (OH) 1.6(CH3–COO) 0.4·0.4H2O, which is presented as LBZA. The formation of LBZA has been reported as a result of hydrolysis of zinc acetate in the methanol solution using “dihydrate” water [10].