Silver impregnated novel adsorbents for capture of elemental Mercury: A review

•The progress of silver impregnated adsorbents for elemental mercury is reviewed.•Advantages of silver impregnated sorbents over conventional sorbents are discussed.•Probable adsorption mechanism and synthesis & experimental details are discussed.•Effect of various process parameters, reusability of sorbent is discussed.•Future research directions are proposed.