Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 402, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2020.123445
Keywords
Catalytic membrane; Gold nanoparticles; Flow catalysis; Antibacterial membrane
Categories
Funding
- Innovation Project of Guangxi Graduate Education [YCBZ2020017]
- Natural Science Foundation of Guangxi [2018JJA130224]
- Foundation of Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control [ZR201805-7]
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This work utilized gold nanoparticles decorated sugarcane membrane for efficient flow catalytical and antibacterial applications. The superior catalytic and antibacterial performance of the Au NPs/sugarcane membrane shows promising potential for designing flow catalytical membrane reactors to purify microbial contaminated water.
In this work, we decorated gold nanoparticles (Au NPs) in the porous, three-dimensional sugarcane membrane for the flow catalytical and antibacterial application. Due to the uniformly distributed Au NPs in sugarcane channels and the porous structure of sugarcane, the interaction between contaminant and catalysis was enhanced as water flowing through the Au NPs/sugarcane membrane. The Au NPs/sugarcane membrane exhibited superior catalytical efficiency for removing methylene blue (MB) with a turn over frequency of 0.27 molMBmolAu -1min(-1) and the water treatment rate reached up to 1.15x10(5) L/m(2) h with > 98.3 % MB removal efficiency. The Au NPs/sugarcane membrane also exhibited superior bacterial removal efficiency as E. coli suspension flowing through it, due to the superimposition effects of physical barrier in sugarcane and the antibacterial property of Au NPs. The tremendous catalytical and antibacterial performance of Au NPs/sugarcane membrane provides a promising potential for the rational design of flow catalytical membrane reactor to purify the microbial contaminated water.
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