Water pollution has also increased with economic development,which has become the disaster threatening human health and environment.Adsorption method is one of the most effective ways to control water pollution.The key factor of this method is the high performance adsorbent.This paper focuses on how to prepare high porosity and surface area adsorbent in a simple,clean way,and also studies the relationship between adsorption parameters and the adsorption effect.Firstly,celery is used as carbon precursor.By c...