Facile ultrasonic-assisted synthesis of micro-nanosheet structure Bi4Ti3O12/g-C3N4 composites with enhanced photocatalytic activity on organic pollutants

Huihui Gan; Futao Yi; Huining Zhang; Yongxing Qian; Huixia Jin; Kefeng Zhang

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Facile ultrasonic-assisted synthesis of micro-nanosheet structure Bi₄Ti₃O₁₂/g-C₃N₄ composites with enhanced photocatalytic activity on organic pollutants

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Facile ultrasonic-assisted synthesis of micro-nanosheet structure Bi₄Ti₃O₁₂/g-C₃N₄ composites with enhanced photocatalytic activity on organic pollutants
- Chinese Journal of Chemical Engineering Vol. 26, Issue 12, Pages: 2628-2635(2018)
- Affiliations：
  
  2 College of Environmental Science and Engineering, Guilin University of Technology,Guilin,China,541004
- Author bio：
- Funds：
- DOI：
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- Published：2018
- Accepted：
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摘要

Abstract

The Bi

/g-C

composites with microsheet and nanosheet structure were prepared through facile ultrasonic-assisted method. The SEM and TEM results suggested that the nanosheets g-C

were stacked on the surface of regular Bi

sheets. Comparing with pure Bi

and g-C

the Bi

/g-C

composites showed significant enhancement in photocatalytic efficiency for the degradation of RhB in solution. With the mass ratio of g-C

increasing to 10 wt%

the Bi

/g-C

-10% presented the best photocatalytic activity. Its photocatalysis reaction constant was approximately 2 times higher than the single component Bi

or g-C

. Meanwhile

good stability and durability for the Bi

/g-C

-10% were confirmed by the recycling experiment and FT-IR analysis. The possible mechanism for the improvements was the matched band positions and the effective separation of photo-excited electrons (e

) and holes (h

). Furthermore

based on the results of active species trapping

photo-generated holes (h

) and superoxide radical (·O

) could be the main radicals in reaction.

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