Adsorption Property of Aniline on Bamboo-Charcoal Adsorption Behavior of the Bamboo-Charcoal for Mercury (Ⅱ) in Aqueous Solution Thermodynamic and Kinetic Parameters for Adsorption of Nitrobenzene by Bamboo-Charcoal Surface Modification,Surface Groups Characterization and Adsorption Properties of Bamboo-Charcoal