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Catalytically Active Bacterial Nanocellulose‐Based Ultrafiltration Membrane
Author(s) -
Xu Ting,
Jiang Qisheng,
Ghim Deoukchen,
Liu KengKu,
Sun Hongcheng,
Derami Hamed Gholami,
Wang Zheyu,
Tadepalli Sirimuvva,
Jun YoungShin,
Zhang Qinghua,
Singamaneni Srikanth
Publication year - 2018
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201704006
Subject(s) - nanocellulose , membrane , methylene blue , methyl orange , ultrafiltration (renal) , rhodamine b , wastewater , filtration (mathematics) , materials science , chemical engineering , chemistry , chromatography , photocatalysis , cellulose , organic chemistry , catalysis , waste management , biochemistry , statistics , mathematics , engineering
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.