The controversial midfielder is set to be banned until November after his sending off in the last Premier League match of the season against Manchester City.
Barton is due to train with League Two side Fleetwood Town from next week to regain his match fitness, and a loan move would see him return to action in October.
Barton wrote on his personal website: "The possibility of a loan move has been mentioned, where there's been interest from several European clubs and a lot of Championship clubs too, as you may expect.
"I have become a little disenchanted with the game in the last six months after what I have put myself through and I desperately want to fall back in love with the game.
"I feel that training in the lower leagues will give me a reality check and maybe help me become a better person, a little more humility will serve me well.
"The lower leagues is where the hunger for the game is at its greatest, at least where players are concerned.
"I want to reignite that passion for the game, something that I ordinarily have an abundance of. No prima donnas. Just pure, old school, mortgage/livelihoods on the line, football.
"It'll help me appreciate all that the Premier league offers me now and in the future.
"What else can I do? Work hard, fall back in love with the game and keep my fingers crossed that I can once again earn my place in a QPR shirt."