Single atom Fe in favor of carbon disulfide (CS2) adsorption and thus the removal efficiency

Carbon disulfide (CS2) is a typical organic sulfur compound emitted from many industrial processes, such as petrochemical, smelting, et al. Chemical adsorption promising method for CS2 removal and Fe based adsorbents usually show excellent performance. Single-atom catalysts (SACs) always perform magical effects in various heterogeneous reactions. In this work, pyrolyzing coordinated polymer (PCP) strategy was adopted to synthesize single-atom catalyst. HAADF-STEM XAFS results that among several support precursor (Zn, Ce, Ag Al), only appears successfully on Al catalyst Fe-C/Al2O3, which also performs the optimal efficiency. The contrast with Fe2O3-C/Al2O3 shows has remarkable advantage agglomeration of iron atoms decreases capacity. DFT calculation finally reveal strong interaction between atom C (in CS2) induces increment capacity Fe-C/Al2O3.