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Influences of different carbon substrates on the morphologies of carbon/g-C3N4 photocatalytic composites and the purification capacities of different composites in the weak UV underwater environment by Zhenyu Shi; Lei Rao; Peifang Wang; Lixin Zhang is a Environmental Science article available to read on EtoBox.

What is Influences of different carbon substrates on the morphologies of carbon/g-C3N4 photocatalytic composites and the purification capacities of different composites in the weak UV underwater environment about?

In order to explore the influence of various carbon introduction on the morphology and photodegradation performance of C/g-C3N4 composites, three kinds of different carbon materials: carbon nanotubes (CNT), graphene (GN) and carbon fibers (CF) were introduced to modify g-C3N4, and the morphologies, light absorption capacities and the underwater purifications of the composite photocatalysts were investigated. Results showed that the composites synthesized with different carbon substrates shows great differences in growth morphology. In addition, the introduction of various carbon sources also has a great impact on the physical and chemical properties of the composites. Compared with GN/g-C3N4 and CF/g-C3N4, CNT/g-C3N4 shows strong light absorption ability, especially in long-wavelength region (570–660 nm). To further study the difference of degradation ability of the composites in the underwater environment, the purification performance of modified g-C3N4 at different water depths were carried out. The results show that under 40 cm of water, where the light intensity and ultra violet spectral are seriously attenuated, the purification efficiency of CNT/g-C3N4 at 40 cm is 3.35 times

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Author

Zhenyu Shi; Lei Rao; Peifang Wang; Lixin Zhang

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Environmental Science (Physical Sciences)