Journal of Sensors / 2019 / Article / Fig 2

Research Article

Facile Preparation of g-C3N4-WO3 Composite Gas Sensing Materials with Enhanced Gas Sensing Selectivity to Acetone

Figure 2

The SEM images of (a) g-C3N4, (b) pure WO3 (S-0), and (c) g-C3N4-WO3 (S-2).
(a)
(b)
(c)