| 초록 |
Tin sulfide (SnS) is a p-type semiconductor with a band gap of 1.2-1.5eV, a very promising photocatalytic material due to its high adsorption coefficient and excellent hole mobility. SnS microspheres in hierarchical structure showed dual function both as adsorbent and photocatalyst. Hierarchical SnS microspheres were synthesized in a ternary medium (ethanol/water/acetic acid). Material was characterized using various characterization techniques including XRD, XPS, SEM, BET surface area, BJH pore size distribution and UV-vis spectrophotometry. Adsorption behaviour was studied by different adsorption isotherms langmuir, fruendlich and temkin isotherm. SnS microspheres followed langmuir isotherm showing maximum adsorption capacity Qm= 8.79 mg/g and R2=0.99. For its photocatalytic activity, it showed real potential for Cr(VI) reduction and methylene blue degradation. |
