Zn-Al Layered Double Hydroxide Thin Film Fabricated by the Sputtering Method and Aqueous Solution Treatment

Zn-Al layered double hydroxides (LDHs) were synthesized herein via a simple process. First, Al-doped ZnO film was deposited onto a glass substrate using the facing target sputtering system. Successful synthesis of the Zn-Al LDH was achieved via a treatment process using an aqueous solution which contains N[O.sub.3.sup.-] anions. X-ray diffraction analysis confirmed that it was consistent with the previous Zn-Al LDH synthesis experiment data, and the calculated d-value was 9.1 A. Scanning electron microscopy observations revealed that the as-synthesized sample had a plate-like structure.