In the scale process of heavy metal ion wastewater treatment applications,adsorption method is simple, suitable for the deep purification of medium and lowconcentration of heavy metal waste water, the materials (adsorbent) adsorptionperformance (adsorption capacity, adsorption rate, capture rate and price/performanceratio) is the key factor restricting their application. The material with a porousstructure, high surface area and abundant surface functional groups is excellentadsorption material for heavy me...