The　grafted　polytetrafluoroethylene　(PTFE)　fibers　were　prepared　with　acrylic　acid　and　then　coordinated　with　Fe　(III)　ions.　The　effect　of　initial　Fe　(III)　ion　concentration　and　temperature　on　coordination　process　was　investigated.　In　addition,　the　kinetics　of　the　coordination　process　was　also　evaluated.　The　results　indicated　that　increasing　initial　Fe　(III)　concentration　and　temperature　significantly　improve　the　amount　of　Fe　(III)　ions　coordinated　onto　the　fiber.　The　coordination　between　them　can　be　described　by　Langmuir　and　Freundlich　isotherm　equations.　On　the　other　hand,　coordinating　process　also　follows　a　pseudo-second　order　model.　Moreover,　a　higher　initial　Fe　(III)　ion　concentration　gives　rise　to　an　enhanced　initial　Fe　(III)　ion　coordination　rate.　©　(2013)　Trans　Tech　Publications,　Switzerland.