Cross linking agents such as glutaraldehyde,epichlorohydrin and ethylene glycol diglycidyl ether were used to synthesize gels of GDACTS,ECCTS and EGDECTS.The solubility of these four gels was studied and the effect of physic-chemical parameters such as pH,concentration,shaking time and temperature on adsorption of uranium of the gels was investigated.Furthermore,the adsorption kinetics law and thermodynamics law were discussed.Experimental results showed that the best conditions for PCTS to adsorb uranium w...