How to teach baby to sleep on their own

Hi, my son is 11 month old and he absolutely needs the bottle to fall asleep. When we remove the bottle, he would cry for 1.5h until we give him the bottle again to fall asleep on the bottle. I tried singing sons, playing lullaby, read a book, take him in my arms, give him a pacifier, give him a teddy bear but nothing works. Any suggestions how to teach him how to sleep by himself?