Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 5, Issue 10, Pages 8860-8869Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.7b01645
Keywords
Pollutant soot; Toxic dye; Water-soluble graphene nanosheets; Methylene Blue; Photodegradation; Dye degradation
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Funding
- MNIT Jaipur
- CSIR, New Delhi
- IIT Kanpur
- CSIR [01(2854)/16/EMRII]
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The findings presented here offer a new approach for the environmental application of pollutant soot somewhat like utilizing a pollutant material for degrading the other pollutant material. Herein, a simpler approach is described for the isolation of two-dimensional graphitic materials as water-soluble graphene nanosheets (wsGNS) from the globally identified dirty-dangerous black pollutant particulate matter as black carbon (BC) from the petrol soot. The as isolated wsGNS are further employed for the photocatalytic degradation of toxic dye such as methylene blue (MB) under the influence of visible light irradiation. The photodegradation performance of wsGNS compared to insoluble graphene nanosheets (GNS) showed similar to 11 times faster degradation rate within similar to 90 min of visible light exposure (60 W tungsten bulb). The insights of the aqueous phase photodegradation of MB by the system of MB-wsGNS were studied by different chemical characterization techniques including nuclear magnetic resonance spectroscopy, high-performance liquid chromatography, Raman, and fourier transform infrared spectroscopy. Furthermore, we have checked the regeneration efficiency of wsGNS, which was still at its even after five cycles of recycling testing. higher value even after five cycles of recycling testing.
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