Rhodamine 6g Removal from Aqueous Solution with Coconut Shell-Derived Nanomagnetic Adsorbent Composite (Cs-Nmac): Isotherm and Kinetic Studies

Untreated effluents from the textile industry containing colorant dyes are harmful to environment, aquatic organisms, and human health. Among these effluents, Rhodamine 6G is known as a corrosive irritant dye. A coconut shell-derived nanomagnetic adsorbent composite (CS-NMAC) was developed remove aqueous solution. Physical adsorption properties of CS-NMAC were characterized via Brunauer–Emmett–Teller (BET) surface area analysis (SBET: 1092.17 m2/g; total pore volume: 0.6715 cm3/g), X-ray diffraction (Fe3O4 [θ=35.522], Fe2O3 [θ=35.720] FeO [θ=41.724]) Fourier transform infrared spectroscopy (Fe–O, C–H, asymmetric C=C=C, CN O–H). found be electropositive within broad pH range 3–10) owing presence nanoscale iron oxides on that enhanced chemical electrochemical outputs. Isotherm study revealed process followed multilayer type onto heterogeneous surface. Freundlich model fitted better (R2 = 0.981) than other models (Langmuir, Temkin BET). The maximum capacity 32.02 mg/g. removal by obeyed pseudo-second-order reaction 0.9995) opposed kinetic models. has potential become an effective treatment for dye pollution.