I dropped my iPhone in the toilet and put it in rice

I took it out of the rice about 45 minutes later and tried to turn it on but then it start to sizzle does that mean it's done?

What the sizzle means, is that your phone's motherboard is fried. I'd recommend stepping away from the device, unless you'd like a stump where your hand used to be. Putting your phone in rice will not stop it from killing the phone, as it only absorbs surface moisture, and an iPhone does not have a removable battery compartment. I apologize, but your cellular device shall play no more games.

You need to leave the phone in the rice like 72 hours, you killed your phone for sure, done.