TY - JOUR
T1 - Palladium Nanoparticle-Decorated Mesoporous Polydopamine/Bacterial Nanocellulose as a Catalytically Active Universal Dye Removal Ultrafiltration Membrane
AU - Gholami Derami, Hamed
AU - Gupta, Prashant
AU - Gupta, Rohit
AU - Rathi, Priya
AU - Morrissey, Jeremiah J.
AU - Singamaneni, Srikanth
N1 - Funding Information:
We acknowledge support from the National Science Foundation Environmental Engineering Program (CBET1604542). The authors thank the Nano Research Facility (NRF) and Institute of Materials Science and Engineering at Washington University for providing access to electron microscopy facilities.
Publisher Copyright:
© 2020 American Chemical Society.
PY - 2020/6/26
Y1 - 2020/6/26
N2 - Removal of organic pollutants from industrial wastewater is of significant importance in wastewater treatment. Here, we present a highly efficient composite membrane composed of bacterial nanocellulose (BNC) embedded with mesoporous polydopamine (mPDA) and decorated with palladium (Pd) nanoparticles. The Pd-mPDA-BNC membrane is synthesized through simple and scalable process involving the in situ incorporation of mPDA nanoparticles into BNC matrix during its bacteria-mediated growth followed by in situ growth of Pd nanoparticles. The Pd-mPDA-BNC membrane exhibited high efficiency (above 99%) in removing cationic, anionic, and neutral dyes over a wide range of concentrations, and pH, and over multiple cycles of reuse. The synergistic effect of adsorption on mPDA nanoparticles and catalytic degradation by Pd nanoparticles enabled the simultaneous removal of multiple contaminants through a simple membrane filtration process. Furthermore, the Pd-mPDA-BNC membranes exhibited significantly higher water flux compared to commercially available ultrafiltration membranes with the same range of pore size, making them highly attractive for wastewater treatment.
AB - Removal of organic pollutants from industrial wastewater is of significant importance in wastewater treatment. Here, we present a highly efficient composite membrane composed of bacterial nanocellulose (BNC) embedded with mesoporous polydopamine (mPDA) and decorated with palladium (Pd) nanoparticles. The Pd-mPDA-BNC membrane is synthesized through simple and scalable process involving the in situ incorporation of mPDA nanoparticles into BNC matrix during its bacteria-mediated growth followed by in situ growth of Pd nanoparticles. The Pd-mPDA-BNC membrane exhibited high efficiency (above 99%) in removing cationic, anionic, and neutral dyes over a wide range of concentrations, and pH, and over multiple cycles of reuse. The synergistic effect of adsorption on mPDA nanoparticles and catalytic degradation by Pd nanoparticles enabled the simultaneous removal of multiple contaminants through a simple membrane filtration process. Furthermore, the Pd-mPDA-BNC membranes exhibited significantly higher water flux compared to commercially available ultrafiltration membranes with the same range of pore size, making them highly attractive for wastewater treatment.
KW - bacterial nanocellulose
KW - catalytically active membrane
KW - dye degradation
KW - dye removal
KW - mesoporous polydopamine particles
UR - http://www.scopus.com/inward/record.url?scp=85087460286&partnerID=8YFLogxK
U2 - 10.1021/acsanm.0c00787
DO - 10.1021/acsanm.0c00787
M3 - Article
AN - SCOPUS:85087460286
SN - 2574-0970
VL - 3
SP - 5437
EP - 5448
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 6
ER -