Catalytically Active Bacterial Nanocellulose‐Based Ultrafiltration Membrane
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 08, 2018
- Source ID
- 10.1002/smll.201704006
Entities
People
- Deoukchen Ghim
- Hamed Gholami Derami
- Hongcheng Sun
- Keng‐ku Liu
- Qinghua Zhang
- Qisheng Jiang
- Sirimuvva Tadepalli
- Srikanth Singamaneni
- Ting Xu
- Young‐shin Jun
- Zheyu Wang
Organizations
- Air Force Office of Scientific Research
- China Scholarship Council
- Division of Chemical, Bioengineering, Environmental, and Transport Systems
- Donghua University
- Washington University in St. Louis