Current technological requirements demand ZnO particles of controlled morphology, distribution and size. The achievement of such specific conditions cannot be guaranteed with conventional synthesis routes and new techniques should be applied to attain this goal. In the present contribution we prove that the controlled precipitation method (CPM) could be successfully applied to obtain high purity 2D zinc oxide nanoparticles with needle-type morphology. By using the appropriate precursors and washing medium, the synthesis could be achieved at room temperature without any additional thermal treatment required.

Keywords: ZnO, Nanostructures, Nanoneedles, Chemical synthesis