Glyphosate, the most widespread organophosphorus herbicide, enters lakes, rivers and groundwater through rainwater and surface runoff. It is very important to remove glyphosate from neutral water bodies. A new strategy for the development of glyphosate adsorbent was implemented through in situ nanoconfinement of hydrated ferric oxide (Fe 2 O 3 ·nH 2 O) in an anion exchange resin D201 (D201/Fe 2 O 3 ·nH 2 O). Fe 2 O 3 ·nH 2 O was confined within the 12–140 nm pores of D201/Fe 2 O 3 ·nH 2 O, exhibiting uniform distribution, nanoscale and am...