By a News Reporter-Staff News Editor at Journal of Engineering -- Current study results on Chemical Engineering have been published. According to news reporting out of Dalian, People's Republic of China, by VerticalNews editors, research stated, "Novel hierarchically macroporous PPy-TiO2 composites were synthesized by polymerization of pyrrole with macro/mesoporous TiO2 as a photosensitizer and template. Complete hybridization was realized because the dual porous structure of the sensitizing material was efficient to infiltrate the pyrrole monomer into its interior and introduce UV photons penetrating the porous network for local polymerization."
Our news journalists obtained a quote from the research from the Dalian University of Technology, "The collective performance favors the fabrication of hybrids with a well-adhered interface between the polymer monomer and the inorganic sensitizing material. The covalent bonding interaction between N and Ti atoms was proved by FTIR, XPS, Raman spectrum and elemental analysis. Mechanisms about the polymerization and interface interaction were discussed in terms of semiconductor photocatalysis. The photo response of the composites is shifted into visible light spectrum (2.67-2.92 eV), showing a band gap narrowing as compared to 3.18 eV of the bare TiO2. The sample of PPy-TiO2-24 shows the higher photoactivity and photocurrent than other composites and the TiO2 under visible light irradiation due to its ordered macropores, uniform PPy sensitizer layer, and relatively less hole-electron recombination rate."
According to the news editors, the research concluded: "This work demonstrates the preparation of organic-inorganic composites with new nanostructures and enhanced visible light properties, and the mechanisms."
For more information on this research see: Preparation of porous PPy-TiO2 composites: Improved visible light photoactivity and the mechanism. Chemical Engineering Journal, 2014;236():480-489. Chemical Engineering Journal can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier - www.elsevier.com; Chemical Engineering Journal - www.elsevier.com/wps/product/cws_home/601273)
Our news journalists report that additional information may be obtained by contacting X.C. Li, Dalian University of Technology, Key Lab Solar Energy Photovolta Syst Liaoning Pro, Dalian 116024, People's Republic of China. Additional authors for this research include G.L. Jiang, G.H. He, W.J. Zheng, Y. Tan and W. Xiao.
Keywords for this news article include: Asia, Dalian, Chemical Engineering, People's Republic of China
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