Paper
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Fig. 11 EDS spectrum of B12-PIL/rGO after 3 recycles.
conversion has also been investigated under 10 min of irra-
diation (shown in Table 2). These data indicated that this
hybrid catalyst had good stability and recyclability, and kept
its catalytic activity aer 3 recycles even at lower conversion.
The recovered B12-PIL/rGO aer 3 recycles was characterized
by EDS (Fig. 11), showing that the chemical compositions of
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Conclusions
A rGO-supported B12 catalyst was successfully synthesized and
its photocatalytic activity was evaluated in the presence of Ru(II)
trisbipyridine for DDT dechlorination under visible light irra-
diation. Using the catalytic system, DDT could be effectively
dechlorinated and the yield of didechlorination reached 78%
aer 1 h of visible light irradiation, which is much higher than
that of other reported photocatalytic systems. These results
indicate that rGO could act not only as an electron mediator in
the hybrid catalyst, but also as a catalyst for the dechlorination
reaction and signicantly enhance the catalytic efficiency of the
hybrid catalytic system. In addition, this hybrid catalyst is
environmentally friendly since it can be easily reused without
any loss of catalytic efficiency.
´
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Acknowledgements
We are grateful for nancial support from Science Foundation
of Educational Department of Liaoning Province (LYB201604)
and the National Natural Science Foundation of China
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RSC Adv., 2017, 7, 19197–19204 | 19203