When a generally passive player opens, his range is well ahead of QTs, and given that you'll be out of position, folding is the straightforward play. Since you chose to call, what did you think his range was at that time? When you flopped top pair and donked pot on the flop, how much of his range were you ahead of vs behind?
When he called, how did that further define his range? What were you beating then vs behind? It seems pretty optimistic to think you were ahead, which means that when you bet the turn, which looks very much like a blank, you were probably bluffing with probably 5 outs. And on such a dry board, what hands were you trying to get him to fold?
And why bet pot, pot to put yourself in a position where you'd feel pot-committed?