The　cracked　phosphorylated　nanoscale　zerovalent　iron　(p-nZVI)　has　a　strong　electron　selectivity　towards　the　reductive　removal　of　many　heavy　metal　ions　in　waters.　However,　the　unintended　environmental　risk　after　interactions　with　impurities　or　wastewater　are　not　involved.　Therefore,　in　this　study,　the　phosphate　group　was　successfully　adsorbed　into　p-nZVI,　and　the　cracked　p-nZVI　was　successfully　prepared　with　an　optimal　P/Fe　ratio　of　0.5%.　The　dosages　of　p-nZVI　and　temperatures　were　positively　correlated　with　the　removal　rates.　The　removal　process　of　Cr(VI)　was　more　suitable　by　the　Langmuir　isothermal　model（R2　＞　0.99).　The　process　of　Cr　(VI)　(10,　20　and　40　mg/L)　removal　more　fitted　the　pseudo　first-order　reaction　model,　while　the　process　of　Cr　(VI)　(60,　80　mg/L)　removal　more　fitted　the　pseudo　second-order　reaction　model.　The　Cr　(VI)　removal　rates　gradually　decreased　when　the　pH　was　increased.　Dissolved　oxygen　slowed　nanoiron　reaction　rates.　The　order　of　inhibition　on　the　reactivity　towards　Cr(VI)　was　SiO32−　＞　SO42−　＞　PO43−　＞　NO3−　＞　HCO3−.The　facilitation　followed　the　order　of　Cd2+＞Cu2+＞Mg2+＞Mn2+＞Ca2+.　Ca2+　showed　an　inhibitory　effect,　but　all　other　cations　showed　different　degrees　of　facilitation.　The　promotion　effect　is　relatively　similar　in　presence　of　Mn2+　or　Mg2+.　HA　had　a　significant　inhibitory　effect.　Environmental　friendly　p-nZVI　had　a　good　effect　in　simulated　groundwater,　seawater,　river　water　and　secondary　effluent　of　the　urban　sewage　treatment　plant.　The　main　pathway　to　remove　Cr　(VI)　was　in　situ　reduction　by　p-nZVI.　The　improved　adsorption　and　reduction　effect　of　p-nZVI　on　heavy　metal　ions　in　water　was　due　to　the　structural　change　and　the　phosphate　group.　©　2024　Elsevier　Ltd