▎ 摘　　要

Chromium(VI) pollution has aroused great attention due to its potential toxicity to human health. In this article, N-rich dendrimer amines grafted onto graphene oxide through cyanuric chloride and diethylenetriamine (GO/CC-DETA) was constructed for chromium(VI) removal from aqueous solution. The adsorption studies for optimum conditions, such as molar ratio of DETA to CC, pH, contact time, and temperature, were proceeded in batch mode. Kinetic and thermodynamic study of adsorption were also explored, where the Langmuir isotherm and pseudo-second-order kinetics fitted the best, and the obtained monolayer adsorption capacity could reach 295.9 mg g(-1). The main adsorption mechanism of GO/CC-DETA toward Cr(VI) was proved to be electrostatic interaction. Practical desorption-regeneration results showed that the adsorption capacity could remain relatively stable after several times of usage.