Preparation of g-C3N4 quantum dot-TiO2/conductive attapulgite composites and their photocatalytic performance

ZUO Shixiang; CAO Xiaoman; WU Hongye; LIU Wenjie; LI Xiazhang; YAO Chao; WU Fengqin

doi:10.13801/j.cnki.fhclxb.20201011.003

Volume 38 Issue 8

Aug. 2021

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ZUO Shixiang, CAO Xiaoman, WU Hongye, et al. Preparation of g-C3N4 quantum dot-TiO2/conductive attapulgite composites and their photocatalytic performance[J]. Acta Materiae Compositae Sinica, 2021, 38(8): 2706-2714. doi: 10.13801/j.cnki.fhclxb.20201011.003

Citation:

ZUO Shixiang, CAO Xiaoman, WU Hongye, et al. Preparation of g-C₃N₄ quantum dot-TiO₂/conductive attapulgite composites and their photocatalytic performance[J]. Acta Materiae Compositae Sinica, 2021, 38(8): 2706-2714. doi: 10.13801/j.cnki.fhclxb.20201011.003

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Preparation of g-C₃N₄ quantum dot-TiO₂/conductive attapulgite composites and their photocatalytic performance

doi: 10.13801/j.cnki.fhclxb.20201011.003

ZUO Shixiang^{1, 2
,},
CAO Xiaoman^1
,,
WU Hongye^1
,,
LIU Wenjie^1
,,
LI Xiazhang^1
,,
YAO Chao^{1
,
,},
WU Fengqin^1
,

1.
School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
2.
R&D Center of Xuyi Attapulgite Applid Technology, Changzhou University, Xuyi 211700, China

Funds: Key R & D Programs of Jiangsu Province (BE2018649); Natural Science Research Program of Huaian City (HAB201952); National Science Foundation of China (51702026)

Received Date: 2020-08-17
Accepted Date: 2020-09-24

Available Online: 2020-10-12

Publish Date: 2021-08-15

Abstract

Abstract

TiO₂/C-ATP composites consisting of palmerworm-like TiO₂ nanorods in-situ growth on the surface of conductive attapulgite (C-ATP) were constructed via a hydrothermal approach. Then TiO₂/C-ATP was used as the carrier to uniformly load carbon nitride quantum dots (CNQD) to successfully prepare hierarchical CNQD-TiO₂/C-ATP heterojunction photocatalysts. The obtained samples were characterized by XRD, FTIR, SEM/TEM, ultraviolet-visible (UV-Vis-DRS), photoluminescence (PL), Brunauer-emmett-teller (BET) specific area analyzer and photoelectrochemistry. The degradation ability of the sample to tetracycline hydrochloride (TC) was investigated under visible light. The results show that CNQD-TiO₂/C-ATP composites dramatically enhance the visible light response, the absorption capacity and the separation of photogenerated electron-hole pairs compared to TiO₂/C-ATP and CNQD. After 120 min irradiation, the degradation rate of CNQD-TiO₂/C-ATP to remove TC can achieve 88%.
- conductive attapulgite,
- TiO₂ nanorods,
- carbon nitride quantum dots,
- hierarchical structure,
- photocatalytic performance
Long Abstrsct
Innovation Points

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References(26)

References

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