Hello, Which long distance bus do I take from Qufu to Nanjing? How long will it take?

I just heard that only one or two buses are scheduled at QF Bus Station and they start from Jinan or Jining, only stopover for some time in QF, so you may take a risk having no seat left. Then I recommend you take a high speed train at QF East to Nanjing South directly in 2-2.5h. It is much more convenient!