leave early for XIAMEN TO SHANGHAI and back the same day possible?

my wife and i will have three full days in xiamen. im thinking of spending our second day in shanghai. is it possible to leave xiamen early in the morning, take a glimpse of shanghai, and be back in xiamen the same day? if yes, by what means of transportation (other than plane) are we taking? if say by train, how many hours will a one-way xiamen-shanghai take? thank you so much.