期刊
SMALL
卷 14, 期 15, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201704006
关键词
bacterial nanocelluloses; catalytical activity; dye degradation; graphene oxides (GOs); palladium nanoparticles
类别
资金
- National Science Foundation Environmental Engineering Program [CBET-1604542]
- Air Force Office of Scientific Research [FA9550-15-1-0228]
- China Scholarship Council Fellowship
Large quantities of highly toxic organic dyes in industrial wastewater is a persistent challenge in wastewater treatment processes. Here, for highly efficient wastewater treatment, a novel membrane based on bacterial nanocellulose (BNC) loaded with graphene oxide (GO) and palladium (Pd) nanoparticles is demonstrated. This Pd/GO/BNC membrane is realized through the in situ incorporation of GO flakes into BNC matrix during its growth followed by the in situ formation of palladium nanoparticles. The Pd/GO/BNC membrane exhibits highly efficient methylene orange (MO) degradation during filtration (up to 99.3% over a wide range of MO concentrations, pH, and multiple cycles of reuse). Multiple contaminants (a cocktail of 4-nitrophenol, methylene blue, and rhodamine 6G) can also be effectively treated by Pd/GO/BNC membrane simultaneously during filtration. Furthermore, the Pd/GO/BNC membrane demonstrates stable flux (33.1 L m(-2) h(-1)) under 58 psi over long duration. The novel and robust membrane demonstrated here is highly scalable and holds a great promise for wastewater treatment.
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