Template-free synthesis of Bi2O2CO3 hierarchical nanotubes self-assembled from ordered nanoplates for promising photocatalytic applications

Li, Liexiao; Sun, Xiaofeng; Tang, Xian; Gao, Huajing; Wang, Shifa; Yi, Zao; Wu, Xianwen; Yang, Hua

doi:10.1039/d1cp05952a

Cited by 107 publications

(35 citation statements)

References 71 publications

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“…The role of the active species was determined from the variation of C / C 0 with irradiation time ( Figure 13 ) of RhB after the scavengers were added to the photocatalytic system. 47 …”

Section: Resultsmentioning

confidence: 99%

Effect of Higher Carrier Mobility of the Reduced Graphene Oxide–Zinc Telluride Nanocomposite on Efficient Charge Transfer Facility and the Photodecomposition of Rhodamine B

Das

Sil

et al. 2022

ACS Omega

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The synthesis of solar-light-responsive zinc telluride (ZnTe) nanoparticles and their composite with reduced graphene oxide (rGO–ZnTe) via a simple hydrothermal reaction is reported. The synthesized nanostructures were comprehensively characterized by a combination of X-ray diffraction and photoelectron spectroscopy, electron microscopy, UV–vis spectroscopy, photoluminescence spectroscopy and thermogravimetric analysis. The effects of graphene oxide on the crystallinity, microstructure, photo-excitation, light absorption, surface area and thermal stability of ZnTe were studied. The current–voltage ( I – V ) characteristics for both as-synthesized ZnTe and rGO–ZnTe composite-based Schottky devices were measured to estimate the charge transport parameters such as dc conductivity, photosensitivity, carrier’s mobility and lifetime. The photocatalytic performance of both the materials in the degradation of an azo dye (Rhodamine B) was subsequently investigated using simulated solar light. The rGO–ZnTe composite exhibited a higher photocatalytic activity (66%) as compared to the as-synthesized ZnTe (23%), essentially due to the synergy between rGO sheets and ZnTe nanoparticles. The role of the carrier’s mobility in the transportation of photo-induced charges (electrons and holes) through the complex network of the composite materials and thus facilitating the photo-degradation process is explained. In the end, the responsible reactive species for the decomposition of Rhodamine B was also interpreted.

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“…The role of the active species was determined from the variation of C / C 0 with irradiation time ( Figure 13 ) of RhB after the scavengers were added to the photocatalytic system. 47 …”

Section: Resultsmentioning

confidence: 99%

Effect of Higher Carrier Mobility of the Reduced Graphene Oxide–Zinc Telluride Nanocomposite on Efficient Charge Transfer Facility and the Photodecomposition of Rhodamine B

Das

Sil

et al. 2022

ACS Omega

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“…The dielectric constants of TiO 2 and SiO 2 are referenced in the literature. 27,28 E⃑ represents the electric field direction, and the electric field direction shown in Fig. 1 is parallel to the x -axis.…”

Section: Structure Design and Numerical Modelmentioning

confidence: 99%

High-Qrefractive index sensors based on all-dielectric metasurfaces

Zeng

et al. 2022

RSC Adv.

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“…Environmental pollution has always been a coexisting problem with human development (Rasheed, 2022). Dyes, persistent organic pollutants, and antibiotics are all powerful environmental killers (Cheng et al, 2022;He et al, 2022;Li et al, 2022). The degradation of these pollutants has become a necessary means to protect the environment.…”

Section: Introductionmentioning

confidence: 99%

Sol–Gel Synthesis and Photocatalytic Activity of Graphene Oxide/ZnFe2O4-Based Composite Photocatalysts

2022

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ZnO (ZO), Fe2O3 (FO), and graphene oxide (GO)/ZO/FO/ZnFe2O4 (ZFO) composite photocatalysts have been synthesized successfully via a simple sol–gel method and low-temperature technology. The phase structure and microstructural analysis confirmed that the GO/ZO/FO/ZFO magnetic separation photocatalyst is composed of GO, hexagonal ZnO, rhombohedral Fe2O3, and spinel ZnFe2O4 without any other impurities. The GO/ZO/FO/ZFO composite photocatalysts have a high visible light optical absorption coefficient and photocatalytic activity for degrading dyes, refractory pollutants, and antibiotics. The degradation percentages of methyl orange, tetrabromobisphenol A, and oxytetracycline hydrochloride by the GO/ZO/FO/ZFO magnetic separation photocatalyst were 98% for 180 min, 99% for 150 min, and 85% for 180 min, respectively. The special synthesis path leads to the formation of a special heterojunction between GO, ZnO, Fe2O3, and ZnFe2O4, which does not change the optical band gap value of the main lattice Fe2O3, and enhances the surface defects of the GO/ZO/FO/ZFO magnetic separation photocatalyst, resulting in high charge carrier transfer and separation efficiency of the catalyst and then enhanced the photocatalytic activity of the GO/ZO/FO/ZFO magnetic separation photocatalyst.

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Template-free synthesis of Bi₂O₂CO₃ hierarchical nanotubes self-assembled from ordered nanoplates for promising photocatalytic applications

Abstract: In this study, we have adopted a one-step hydrothermal route to synthesize an interesting type of Bi2O2CO3 hierarchical nanotubes well-orderedly self-assembled from nanosheets. The effects of reaction time on the...

Cited by 107 publications

References 71 publications

Effect of Higher Carrier Mobility of the Reduced Graphene Oxide–Zinc Telluride Nanocomposite on Efficient Charge Transfer Facility and the Photodecomposition of Rhodamine B

Effect of Higher Carrier Mobility of the Reduced Graphene Oxide–Zinc Telluride Nanocomposite on Efficient Charge Transfer Facility and the Photodecomposition of Rhodamine B

High-Qrefractive index sensors based on all-dielectric metasurfaces

Sol–Gel Synthesis and Photocatalytic Activity of Graphene Oxide/ZnFe2O4-Based Composite Photocatalysts

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