This study reports a novel ternary nanohybrid ([CH3OH]-F@γ-A@rG). Fe3O4 was core-shell coated with γ-APTES polymer (F@γ-A alloy) via in situ aminosilanization, then deposited on reduced graphene oxide (rG) through [CH3OH]-soluble distribution forming intermolecular interactions, to remove emerging organic chemicals as 1,2,3-benzotriazole (BTA). We newly found that ternary magnetic-polymer [CH3OH]-F@γ-A@rG possessed the regular sub-lattice active sites with a sole triangle of 60° in parallel adjacent interlayer of d111, d220, and d311 distances. While the key adsorption characteristics were not strongly affected by porous properties, the BTA adsorption was desired at elevated temperature and controlled by endothermic process. All adsorption data were satisfactorily fitted with the Langmuir isotherm and pseudo-second order kinetics. The maximum adsorption capacity of BTA was 312.5 mg·g-1 at neutral pH and 40 °C, which was great higher than other materials. CH3OH was the best liquid for efficient regeneration with 97% loss of BTA adsorption efficiency after five cycle times of [CH3OH]-F@γ-A@rG. The promoted BTA adsorption capacity was assigned to significant mechanisms including hydrophobic, electrostatic and π-π interactions between adsorbent-adsorbate.