The　efficient　enrichment　and　remediation　of　heavy　metals　from　realistic　wastewater　and　contaminated　soil　containing　large　excess　of　competitive　ions　remains　a　daunting　challenge　by　far.　In　the　present　study,　flower-like　molybdenum　disulfide　decorated　with　iron　oxide　nanoparticles　(MoS2/Fe3O4)　is　designed　via　a　two-step　hydrothermal　method　and　mainly　applied　in　the　removal　of　Hg(II)　and　Pb(II)　ions　in　aqueous　environment.　Exhaustive　morphological,　chemical　and　magnetic　characterizations　verify　the　successful　formation　of　magnetic　MoS2/Fe3O4.　Batch　adsorption　experiments　show　that　the　obtained　MoS2/Fe3O4　nanohybrid　enables　efficient　capture　of　Hg(II)　and　Pb(II)　ions,　accompanied　by　ease-of-separation　from　solution　by　simply　applying　a　magnet.　In　this　respect,　high　adsorption　capacities　(263.6　mg　g(-1)　for　Pb　(II)　and　428.9　mg　g(-1)　for　Hg(II))　can　be　gained　under　optimized　conditions　(pH　=　5.0;　298　K;　nanohybrid　dosage:　0.8　g　L-1　and　the　contact　time:　180　min).　In　addition,　the　effects　of　different　parameters　such　as　initial　Pb(II)/Hg(II)　concentration　(50-500　mg　L-1),　temperature　(298,　308　and　318　K)　and　co-existing　ions　(Zn(II),　Cu(II),　Cd(II)　and　Mg(II))　were　systematically　probed.　The　favorable　adsorption　capacity,　selectivity　and　recyclability　mainly　originates　from　the　strong　Hg2+/Pb2+center　dot　center　dot　center　dot　S-2　bonding　interactions.　Practical　application　potential　of　magnetic　MoS2/Fe3O4　nanohybrid　in　realistic　lead-acid　battery　industry　wastewater　and　Pb(II)-contaminated　soil　is　further　explored,　achieving　promising　results　with　high　Pb(II)　removal　efficiency　of　99.63%　for　wastewater　and　57.15%　for　soil.　Simple　preparation,　easy　separation　and　high　adsorption　capacity　would　foster　thus-designed　sulfide-based　nanohybrid　a　promising　adsorbent　for　heavy　metal　removal　from　wastewater　and　contaminated　soil.　(C)　2019　Elsevier　B.V.　All　rights　reserved.