Showing papers by "Lu Bai published in 2014"
TL;DR: In this article, a series of novel ether-functionalized pyridinium chloride Ionic liquids (ILs) were designed and synthesized to improve the absorption capacities of ILs for SO2, and the physicochemical properties of these ILs and their SO2 absorption performance under different conditions were investigated.
Abstract: Sulfur dioxide (SO2) emitted from the combustion of fossil flues is a major atmospheric pollutant that seriously threatens the environment and human health The traditional methods for the removal and recovery of SO2 are irreversible and can result in secondary pollution or suffer from solvent loss Therefore, it is urgent to explore new absorbents for the reversible, efficient, and environment-friendly capture of SO2 Ionic liquids (ILs) exhibit excellent performance for SO2 capture because of their unique physicochemical properties To improve the absorption capacities of ILs for SO2, a series of novel ether-functionalized pyridinium chloride ILs ([EnPy]Cl, n = 2–4) were designed and synthesized The physiochemical properties of these ILs and their SO2 absorption performance under different conditions were investigated In addition, the SO2/CO2 selectivities and reusabilities of the ILs and the absorption mechanism between SO2 and [EnPy]Cl (n = 2–4) were studied It was found that 1-[2-(2-methoxyethoxy)
82 citations
TL;DR: A novel self-powered ultraviolet (UV) photodetector was successfully constructed through combining Pt-modified TiO2 nanotubes and Prussian blue (PB)-modified ITO, in which the existence of UV could be judged easily by naked eye with the aid of PB for electrochromic display.
46 citations
TL;DR: In this article, a series of ionic liquids (ILs) mixtures with NMP were developed for the extraction of coal-tar pitch to obtain the refined pitch, and the extracts were analyzed via elemental analysis, TGA, FT-IR, and 13C-NMR.
Abstract: Coal-tar pitch (CP) is a promising carbon raw material for producing needle coke, carbon fiber etc. During processing, the H/C ratio, ash content, and quinoline insoluble (QI) in the CP are the key factors that influence the material preparation. In this study, NMP was selected to extract CP first; then [BMIM]Cl/NMP mixed solvent was used; and finally a series of ionic liquids (ILs) mixtures with NMP were developed for the extraction of CP to obtain the refined pitch. The extracts were analyzed via elemental analysis, TGA, FT-IR, and 13C-NMR. Results indicate that different NMP/IL mass ratios or different kinds of ILs have impact on the extraction yield. The relationship of the hydrogen to carbon (H/C) ratio changed with different solvents and QI extracts were obtained. Results showed that the H/C ratios changed little between NMP extracts and could be adjusted by changing the NMP/ILs mass ratio or using different ILs. The extracts are suitable for preparation mesophase pitch because of no ash content, low QI, and appropriate H/C ratios. As a result, NMP can be used to refine pitch. In addition, [BMIM]Cl is good mixed with NMP for CP extraction, because it can obtain a relatively high yield under the same extraction conditions.
6 citations