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Rapid Degradation of Rhodamine B via Poly(dopamine)‐Modified Membranes with Silver Nanoparticles
Author(s) -
Ma Shengkui,
Chen Xi,
Zhao Bowu,
Li Liying,
Fu Weigui
Publication year - 2018
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201600682
Subject(s) - rhodamine b , catalysis , membrane , degradation (telecommunications) , silver nanoparticle , chemical engineering , rhodamine , nanoparticle , difluoride , chemistry , materials science , nanotechnology , inorganic chemistry , organic chemistry , photocatalysis , telecommunications , biochemistry , physics , quantum mechanics , computer science , engineering , fluorescence
Rapid and convenient removal of organic dyes from water still remains a great challenge. The fast degradation of Rhodamine B (RhB) with NaBH 4 as a reducing agent catalyzed by a catalytic membrane fabricated by poly(dopamine)‐modified poly(vinylidene difluoride) (PVDF) powders and silver nanoparticles (NPs) is described. Results indicate that the catalytic membrane shows an excellent performance for RhB degradation under a static state and cross‐flow catalysis. Compared to static catalysis, cross‐flow catalysis can efficiently enhance the degradation of RhB due to the silver NPs and the high flowing rate of reactants on the membrane surface. The penetrated fluid can be directly excluded due to the RhB with a high conversion coming out from the membrane pores with silver NPs. The convenient operation avoids additional steps to separate catalysts from the system and, therefore, has a promising potential in degradation of organic dyes.