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Exploring the efficient and sustainable photocatalysts plays a decisive sole for the improvement of photocatalytic efficiency. Herein, a novel Zn2SnO4/SnO2@ZIF-8 heterojunction hybrids photocatalyst prepared by an in-situ growth method exhibits remarkable visible light driven photocatalysis performance toward tetracycline. This heterostructure with well-matched band structure enhances the separation and migration of photogenerated charges, which contributes to improve the photocatalytic activity (See Wu et al. Pages 45–55).
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Methyl acrylate is an important industrial intermediate widely used in pharmaceuticals, coatings and superabsorbent resins. Synthesis of methyl acrylate using the aldol condensation of methyl acetate and formaldehyde is the most promising method with coal-based materials. Cs/Al2O3-AlPO4 catalysts were prepared for the aldol condensation. The loading effect of the cesium element and the cooperatively catalytic effects between the penta-coordinated Al and Al2O3 were demonstrated (See Wu et al. Pages 172–183).
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Liquid-liquid equilibrium (LLE) data for the ternary systems of water + 1,2-dichloroethane + sulfolane were obtained, and the corresponding triangle phase diagrams were illustrated. The experimental LLE data were regressed by the NRTL model and UNIQUAC model. The accuracy of the binary interaction parameters for the NRTL and UNIQUAC models was verified through the GM/RT surface analysis. According to the distribution coefficient and selectivity, 1,2-dichloroethane is a suitable extractant for the recovery of sulfolane from aqueous solution. The LLE data obtained herein is critical to the simulation and optimization of the sulfolane wastewater treatment. (See Zhansheng Li et al. Pages 109–114)
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The separation of C3H6 and C3H8 is an important but challenging process. Two cost-effectively four-carbon linkers based metal-organic frameworks (MIP-202 and MIP-203) were used to separate C3H6/C3H8 mixtures. MIP-203 was found to display ultra-high C3H6/C3H8 adsorption selectivity. Unusually, compared with C3H6 uptake at 298 K, MIP-203 had higher C3H6 uptake at 303 K. This phenomenon is caused by the temperature-induced and guest-induced flexibility of the framework, and it is verified by the in situ PXRD characterization. (See Daofei Lv et al. Pages 126–134).
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2022年 第52卷 第12期 刊出日期:2022-12-28
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Permeation characteristics of light hydrocarbons through Poly(amide-6-b-ethylene oxide) multilayer composite membranes 任吉中 Ren Xiaoling Deng Maicun Li Hui摘要 ( 0 )
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