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Catalytic bubble-free hydrogenation reduction of azo dye by porous membranes loaded with palladium nanoparticles |
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| Authors: | Zhiqian Ji Huijie Sun Zhenxia Du and Zhigang Lei |
| Institution: | Laboratory for Membrane Science and Technology, College of Chemistry, Beijing Normal University, Beijing 100875, China;Laboratory for Membrane Science and Technology, College of Chemistry, Beijing Normal University, Beijing 100875, China;Beijing University of Chemical Technology, Beijing 100029, China;Beijing University of Chemical Technology, Beijing 100029, China |
| Abstract: | Catalytic bubble-free hydrogenation reduction of azo dye by porous membranes loaded with palladium (Pd) nanoparticles was studied for the first time. The effects of Pd loading, dye concentration and reuse repetitions of membranes were investigated. In reduction, the dye concentration decreased whereas the pH rose gradually. An optimal Pd loading was found. The catalytic membranes were able to be reused more than 3 times. |
| Keywords: | hydrogenation reduction porous membrane bubble-free azo dye membrane contactor |
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