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Herein, a green chemical, glucose was applied to prepare reduced graphene oxide (RGO), of which the removal performance was explored within three different dye effluents of lower concentration. The results demonstrated that the average removal capacity of RGO was as high as ~47.5 mg/g, overwhelming popular adsorbents like nanotitania, activated carbon, and graphene oxide, from initial concentration of 5 mg/L. Meanwhile, effects of adsorbent dosage and reuse cycle relating to the adsorption were also addressed. Moreover, it was found that the Langmuir isotherm and pseudo-second-order model fit the adsorption process of RGO well, with the thermodynamic analysis revealing that it was performed in a spontaneous and endothermic way. Overall, this work is targeted to establish an efficient approach applied in advanced treatment of effluents. [ABSTRACT FROM AUTHOR]