Novel g-C3N4 quantum dot/BiPO4 nanocrystal heterostructured photocatalysts have been synthesized; the photocatalytic activity for degradation of methyl orange as been significantly improved under visible light (λ > 420 nm) irradiation.
The thermal stability and degradation kinetics of TV housing plastic and brominated fl ame retardants were studied by means of thermogravimetry. The effects of the treatment temperature on the removal rate of Br were investigated using a tube furnace reactor under isothermal and vacuum conditions. The results showed that the weight loss of TV housing plastic was divided into two stages: the thermal degradation of brominated fl ame retardants mainly occurred at 290°-350°C, and the degradation of the highimpact polystyrene resin mainly occurred at 350°-455°C. Nearly 90% of Br can be removed from TV housing plastic when the treatment temperature exceeds 280°C.
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