Arsenic pollution has posed increasingly severe threat to human health, therefore, dealing with the problem of arsenic contamination in water bodies is extremely urgent. Iron and manganese oxides/carbon composite materials, characterized in superior adsorption properties, strong performance of separation and regeneration potentials, have received more and more concern in recent years. Especially, novel carbon-based nano materials such as carbon nanotubes and graphene have high specific surface area and possess a wealth of surface functional groups, providing good conditions for the loading of iron/manganese oxides. Moreover, finer particle size of iron/manganese oxides can be formed on the surface of carbon-based materials, offering more adsorption sites for the adsorption of arsenic. In this paper, we have purposively focused on the synthesis methods of Fe-Mn oxides/carbon composite materials from the domestic and foreign research programs. The advantages and disadvantages of the synthesis of this material were compared, and the removal effects and adsorption mechanisms of arsenic by this adsorbent were elucidated. Furthermore, the regeneration potential of iron and manganese oxides/carbon composite materials was analyzed and the existing deficiencies of this material in practical application were proposed. Finally, the development trend of arsenic removal in water bodies by this new composite material was forecasted.

Contents
1 Introduction
2 Preparation of iron and manganese oxides/carbon composite materials
2.1 Iron/manganese oxides
2.2 Iron and manganese oxides/ activated carbon
2.3 Iron and manganese oxides/carbon nanotubes
2.4 Iron and manganese oxides/ graphene
3 Influencing factors of arsenic removal from water by iron and manganese oxides/carbon composite materials
3.1 Properties of composite materials
3.2 Environmental conditions
4 Adsorption mechanisms of arsenic by iron and manganese oxides/ carbon composite materials
5 Regenerability
6 Conclusion and outlook