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In this work, pure rutile titanium dioxide (TiO2) nanosheets are synthesized by the electrochemical deposition method using a rectangular titanium plate (4 cm × 2 cm × 0.1 cm) as both cathode and anode with a current density of 9.2 × 10–3mA/cm2for 3 h. The rutile TiO2nanosheets are investigated by both scanning electron microscopy and transmission electron microscopy measurements, and their crystal structure is obtained using the X-ray diffraction technique. The Brunauer–Emmett– Teller analysis was shown the surface area of the rutile phase was 52 m2/g. The electrochemical synthesized rutile TiO2nanosheets behave as an attractive adsorbent for Se4+ions from their aqueous solutions. We examined the impact of contact time, pH, adsorbent mass, temperature and initial concentration of Se4+ions. The Se4+ions isotherm adsorption showed a good fit with Freundlich isotherm and Langmuir models. The thermodynamic study was done to calculate the ΔS, ΔH and ΔG parameters, which obtained 7.39 kJ/mol, 39.32 J/mol K, and –4.32 kJ/mol, respectively. Moreover, the kinetic study showed the adsorption behaved as pseudo-second-order.