摘要：Abstract
In this study the removal of benzothiophene (BT) from a synthetic solution with n‐octane was evaluated using batch adsorption on modified mesoporous silicas impregnated with iron and cobalt species. The silica was modified to limit the aggregation and enlargement of mesochannels and produce a less ordered structure if compared to SBA‐15. The synthesized adsorbents were characterized by X‐ray diffraction (XRD), N2 adsorption/desorption isotherms at −196 °C, transmission electron microscopy (TEM), and X‐ray photoelectron spectroscopy (XPS). Adsorption equilibrium was investigated using different sulphur concentrations (3–15 mmol/L) and temperatures (30–50 °C). Under optimized conditions, the SBA‐15 sample modified with NH4F containing 10 g/g of Co showed the highest adsorption capacity (0.101 mmol/g), at 30 °C. Thus it may be inferred that these materials are promising for removal of sulphur in low concentrations from liquid fuels.
