Ameen Sadia, Im Yu-Bin, Jo Chul Gi, Kim Young Soon, Shin Hyung-Shik
Energy Materials and Surface Science Laboratory, Solar Energy Research Center School of Chemical Engineering, Chonbuk National University, Jeonju 561-756, Republic of Korea.
J Nanosci Nanotechnol. 2011 Jan;11(1):541-5. doi: 10.1166/jnn.2011.3161.
The novel organic-inorganic nanocomposites were synthesized via in-situ polymerization of polyaniline (PANI) with mesoporous silica (MCM-41) for methylene blue (MB) dye degradation under visible light. The synthesized PANI/MCM-41 nanocomposites were characterized through Fourier transform infrared (FTIR), X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FESEM), and UV-visible studies. The structural and optical properties confirmed the interaction between PANI and MCM-41. The photocatalytic experiments showed that the MB dye was efficiently degraded by approximately 70% under light irradiation over the surface of the PANI/MCM-41 nanocomposites. The degradation might occur due to the efficient charge separation of the e(-)-h+ pairs at the interface of PANI and MCM-41 in the excited state under light irradiation.
通过聚苯胺（PANI）与介孔二氧化硅（MCM - 41）原位聚合合成了新型有机 - 无机纳米复合材料，用于在可见光下降解亚甲基蓝（MB）染料。通过傅里叶变换红外光谱（FTIR）、X射线衍射（XRD）、拉曼光谱、场发射扫描电子显微镜（FESEM）和紫外 - 可见光谱研究对合成的PANI/MCM - 41纳米复合材料进行了表征。结构和光学性质证实了PANI与MCM - 41之间的相互作用。光催化实验表明，在光照射下，MB染料在PANI/MCM - 41纳米复合材料表面上被有效降解了约70%。这种降解可能是由于在光照射下激发态的PANI与MCM - 41界面处e(-)-h+对的有效电荷分离所致。
