| The invention provides a 3D stacked photocatalytic device, which includes a support frame and a first integrated component. The first integrated component includes a first bottom plate, a first receiving tank and a first top plate. The first bottom plate is pivoted In a first pivot hole of the support frame, the first accommodation groove is provided above one of the first bottom plates, and a first photocatalytic member is provided on the inside of the first accommodation groove, and the first top plate is disposed above one of the first accommodating grooves, wherein a light passes through the first top plate and the first photocatalytic component sequentially, causing the first photocatalytic component to generate a gas, and the first bottom plate is used to The first pivot hole rotates and drives the first integrated component to rotate to adjust the irradiation angle of the first photocatalytic component. |