How to reach Panda research centra from Chengdu airport?

Hi, I will be landing at 9 am at CD airport & have a flight same day at 6 pm to Beijing , in between the halt, I would like to visit CD Panda research & breeding centre, which bus should I board to & fro the airport to visit panda research centre ? what would be the cost per ticket each way? In case if I take a taxi what would be the fare each way? In How much time can we complete the visit?