Abstract
ZnO nanorods/graphitic carbon nitride nanocomposites were prepared using a two-step seed method. Characterizations including scanning electron microscopy, X-ray diffraction and Brunauer-Emmett-Teller analysis confirmed that a well-designed 1D ZnO on 2D g-C 3 N 4 nanostructure was achieved. Gas sensing test of the synthesized ZnO/g-C 3 N 4 nanocomposites concluded that g-C 3 N 4 essentially increased the sensitivity. The ZnO/g-C 3 N 4 nanocomposite tend to perform better to ethanol than other volatile organic compounds. The detection mechanism of the ZnO nanorods on g-C 3 N 4 has been discussed in detail.