Yes baking soda is good at absorbing odors including foot odor and will help get rid of the bacteria that causes foot odor.
You can add some baking soda to a foot bath and soak your feet in the foot bath of baking soda and water and you can also sprinkle some baking soda in your shoes and socks or onto your feet.
The baking soda will work wonders as a foot bath or as a natural foot odor absorb powder.
You can also soak your feet in a foot bath of water and Apple Cider Vinegar since the Apple Cider Vinegar can kilf bacteria as well since bacteria is one of the major causes of foot odor.
So by killing off the bacteria that causes the foot odor you'll be eliminating the foot odor.