In French 'j' carries /ʒ/ and the digraph 'dj' carries /d͡ʒ/. In English, 'j' carries /d͡ʒ/ and there's no consistent orthographic convention for just /ʒ/ ('si', 'zh', 'j', and 'z' all do the job in different contexts, and probably others as well). There isn't really a /d/ as such in /d͡ʒ/.