Abstract
A novel multifunctional carbon-modified MoS(2) material (C-W-D-MoS(2)-x) was synthesized through a solvothermal method, exhibiting expanded interlayer spacing, a large surface area (∼47.03 m(2) g(-1)), and abundant exposed sulfur (S) active sites that enabled efficient adsorption of Hg(2+) from wastewater. Among the prepared variants, C-W-D-MoS(2)-0.03 showed the highest adsorption performance, achieving an exceptional distribution coefficient (K (d) ) of 2.0 × 10(5) mL g(-1). The adsorption kinetics were best described by the pseudo-second-order model, while the adsorption isotherms were well-fitted to the Langmuir model, with a maximum adsorption capacity (q (m) ) of 1974.0 mg g(-1). This remarkable adsorption capability of C-W-D-MoS(2)-0.03 can be attributed to the synergistic effect of carbon functional groups and the high density of S active sites. Furthermore, an alumina inorganic membrane functionalized with C-W-D-MoS(2)-0.03 was successfully assembled into a device, demonstrating a dynamic removal process that reduced 50 mg L(-1) of Hg(2+) to below 0.1 mg L(-1).