|
|
| Type |
Poster Presentation |
| Area |
재료화학 |
| Room No. |
포스터발표장 |
| Time |
4월 21일 (금요일) 13:00~14:30 |
| Code |
MAT.P-351 |
| Subject |
Pd-decorated on CNTs as highly efficient catalysts for the reduction of aromatic nitro compounds |
| Authors |
김지당, 최현철*
전남대학교 화학과, Korea
|
| Abstract |
Aromatic nitro compounds are the pollutants in wastewater. Pd-based compounds have high catalytic activity for the reduction of aromatic nitro compounds. By the way, the applications of Pd nanoparticles remain limited by weakness in terms of their easy aggregation and the difficulty of catalyst product separation. In this study, we synthesized Pd-decorated CNT by introducing thiol groups on CNTs. The thiol of surface modification is an effective way to obtain dispersed metal nanoparticles on the surface of CNT. We have successfully simple prepared CNT-Pd nanocomposites with a reduction of Pd (II) ions. To study the catalytic activity, a 1ⅹ10-3 M of aqueous aromatic nitro compounds solution was mixed with 0.1 M of fresh NaBH4 solution. CNT-Pd catalysts were added and stirred. The mixture was immediately transferred into a quartz cuvette and UV-vis absorption spectra were recorded to monitor changes in the reaction mixture. The samples were characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The reduction kinetics of aromatic nitro compounds is also investigated by ultraviolet-visible (UV-vis) measurement.
|
| E-mail |
jd1107@naver.com |
|
119th General Meeting of the KCS