Stopping in Guangzhou Baiyun airport for 17 hours

Hi, I have a changeover at Guangzhou Baiyun airport (it is 17 hours between each flight), and the only hotel I can stay at is in terminal 1, which requires me to leave the airport, as I arrive into terminal 2. I was wondering what the procedure was for this so I can plan ahead? I am coming from London and going to Vietnam.