The degradation of tetracycline by modified BiOCl nanosheets with carbon dots from the chlorella

Zha, Zhenxing; Lai, Jiahao; Liu, Ying; Yang, Jing; Shen, Chen; Li, Yafei

doi:10.1016/j.jallcom.2020.157454

Cited by 38 publications

(6 citation statements)

References 59 publications

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“…Zha et al fabricated a nanocomposite CBOC X (X = molar ratio of two precursor) using CD (chlorella as the carbon precursor) and BiOCl (precursor Bi(NO 3 ) 3 •5H 2 O and KCl) for tetracycline (TC) degradation under sunlight. 179 According to DFT calculations, the HOMO and LUMO orbitals of TC are mainly located on the benzene ring and hydrocarbon group, respectively. Also, the carbon site as C6, C16, and C18 sites are mainly responsible for formation of hydroxylated products and te ringopening reaction using • OH and • H/ • O 2 − /h + radicals, respectively.…”

Section: Photocatalytic Applicationsmentioning

confidence: 99%

“…Additionally, the organic pollutant degradation pathways were also investigated by the theoretical DFT based studies which investigate the possible active species or reaction intermediates involved in a photocatalytic degradation reaction. Zha et al fabricated a nanocomposite CBOC X (X = molar ratio of two precursor) using CD (chlorella as the carbon precursor) and BiOCl (precursor Bi(NO 3 ) 3 ·5H 2 O and KCl) for tetracycline (TC) degradation under sunlight . According to DFT calculations, the HOMO and LUMO orbitals of TC are mainly located on the benzene ring and hydrocarbon group, respectively.…”

Section: Computational Studiesmentioning

confidence: 99%

See 1 more Smart Citation

Visible-Light-Promoted Photocatalytic Applications of Carbon Dots: A Review

Saini

Garg

Dalal

et al. 2022

ACS Appl. Nano Mater.

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The same carbon-based nanomaterials have shown their potential photocatalytic applications toward environmental and energy-related problems based on their excellent light absorption abilities. Herein, we summarized the findings associated with visible light and sunlight-induced photocatalysis, specifically using carbon dots (CD), doped-CD, and their nanocomposite as an advanced photocatalytic material. Doped-CD and CD-based composite have improved light absorption abilities compared to bare CD, which is the essential parameter for photocatalysis applications. Various parameters, such as fabrication methodologies, efficiency, and stability, have also been discussed. The possible mechanistic insights involving the photocatalysis method applied in multiple chemical reactions have been discussed in detail, including degradation of organic dye, reduction of higher toxic oxidation states of metal ions, CO 2 conversion, water splitting, organic transformation reaction, and NOx removal, etc.

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Section: Photocatalytic Applicationsmentioning

confidence: 99%

Section: Computational Studiesmentioning

confidence: 99%

Visible-Light-Promoted Photocatalytic Applications of Carbon Dots: A Review

Saini

Garg

Dalal

et al. 2022

ACS Appl. Nano Mater.

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“…252 These heterojunctions displayed a higher As excellent absorbent and electron collector, rGO can be fabricated through the reduction of GO or graphite powder under the action of a reducing agent (such as hydrazine hydrate or ethanol). 251,253,254 Thus, it can be used to synthesize hybrid rGO/BiOCl composites for improving the photocatalytic performance of BiOCl. For example, Zhang and co-workers have demonstrated that hydrazine hydrate can induce the production of rGO and achieve the uniform growth of sheet-like BiOCl on the surface of rGO aerogel through a hydrothermal route (see Figure 22b−d).…”

Section: Bimentioning

confidence: 99%

Synthesis, Functional Modifications, and Diversified Applications of Hybrid BiOCl-Based Heterogeneous Photocatalysts: A Review

Yang

Sun

Cui

et al. 2021

Crystal Growth & Design

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The construction and regulation of heterogeneous interfaces are beneficial to improve solar light harvesting and photocharge separation of hybrid BiOCl-based photocatalysts, which are attributed to the synergistic effects that originate from the integrated interaction between disparate components. With the rapid development of synthetic technologies, hybrid BiOCl-based micro-/nanostructures with diversified components, morphologies, and sizes have been well prepared. Moreover, hybrid BiOCl-based photocatalysts have presented a promising potential for various photocatalytic applications, such as organic pollutant degradation, hydrogen production, NO removal, CO2 reduction, heavy metal ion detection, disinfection, nitrogen fixation, and alcohol oxidation. Previously, several review articles have mainly summarized the advances made in synthetic methods, morphological control, modification strategies, and applications of the bare BiOCl micro-/nanostructures. However, a comprehensive overview based on the type of species and the corresponding correlations between microstructures, performances, as well as photocatalytic mechanisms has been less reported for hybrid BiOCl-based photocatalysts so far. Therefore, a comprehensive understanding of the basic theory and research progress of hybrid BiOCl-based photocatalysts is imperative. This review aims to provide an overview of the important advances made in eight types of hybrid BiOCl-based photocatalysts, including metal/BiOCl, metal oxide/BiOCl, metal sulfide/BiOCl, BiOX (X = Cl, Br, I)/BiOCl, AgX (X = Cl, Br, I)/BiOCl, organics/BiOCl, carbon/BiOCl, and other BiOCl-based multicomponents. In each classification, the synthetic methods, modification strategies, relationships between interfacial microstructures, and enhanced performances are discussed based on some typical examples. Additionally, some scientific issues and potential directions are also given. Hopefully, this review paper will provide a useful reference for researchers currently focusing on exploring new BiOCl-based photocatalysts.

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“…Zha et al. [ 19 ] synthesized a photocatalyst CDs/BiOCl using Chlorella vulgaris as a carbon source for CDs (CBOC). The introduced CDs broadened the response range of the spectrum, promoted the separation of electron‐hole pairs, and enhanced the photocatalytic efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…CDs/Bi 2 MoO 6 composite photocatalysts were prepared by Samanta et al [18] CDs led to an increase in catalyst light absorption and carrier separation efficiency. Zha et al [19] synthesized a photocatalyst CDs/BiOCl using Chlorella vulgaris as a carbon source for CDs (CBOC). The introduced CDs broadened the response range of the spectrum, promoted the separation of electron-hole pairs, and enhanced the photocatalytic efficiency.The photocatalytic mechanism of CDs can be the photoexcitation and charge separation of the core carbon.…”

mentioning

confidence: 99%

Introduction to the Performance and Mechanism of Various Photocatalytic Materials Compounded with Carbon Dots

Yan

Wang

Zang

et al. 2021

Part & Part Syst Charact

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extensive research in the fields of drug delivery, chemical sensing, bioimaging, and specifically catalysis. [7][8][9] For instance, Liu's group has prepared CDs-confined CoP-CoO nanoheterostructure, Ru@CDs, RuM/CDs (M = Ni, Mn, Cu), and RuCo/ CDs catalysts with excellent catalytic performance, which can be widely used for electrolysis of hydrogen. [10][11][12][13] Catalysis, especially photocatalysis, is a topic that has received a lot of attention recently. Conventional photocatalysts include titanium dioxide, zinc oxide, and cadmium sulfide and many other oxide sulfide semiconductors, but these catalysts are basically limited in their use by low light utilization and high lightinduced electron-hole complexation rates. [14,15] As functional nanomaterials with excellent optical and electronic properties such as efficient light harvesting, extraordinary UCPL, and excellent photoinduced electron transfer, CDs combined with photocatalysts can broaden the photoresponsive region and improve the separation ratio of photoinduced carriers. [16,17] CDs are therefore considered to be an effective component for the construction of high-performance photocatalysts, and this area has been extensively investigated by researchers. CDs/Bi 2 MoO 6 composite photocatalysts were prepared by Samanta et al. [18] CDs led to an increase in catalyst light absorption and carrier separation efficiency. Zha et al. [19] synthesized a photocatalyst CDs/BiOCl using Chlorella vulgaris as a carbon source for CDs (CBOC). The introduced CDs broadened the response range of the spectrum, promoted the separation of electron-hole pairs, and enhanced the photocatalytic efficiency.The photocatalytic mechanism of CDs can be the photoexcitation and charge separation of the core carbon. [20] In general, the photocatalytic process based on CDs is divided into the following three processes. First, the absorption of light leads to the generation of electron-hole pairs. Second, the separation and transfer of electron-hole pairs create prerequisites for the reaction. Finally, a redox reaction takes place on the photocatalytic surface. [21] The main factors limiting the photocatalytic process are light absorption and the rate of electron-hole pair complexation, and many approaches have been taken to alleviate these problems.In view of the excellent performance of CDs in photocatalysis, previous reviews have summarized the approaches to improve the photocatalytic efficiency of CDs and the applications of CDs-based photocatalytic materials. [22][23][24][25][26] However, this thesis provides a review of the recent literature in this With their unique optical and electronic properties, carbon dots (CDs) are showing great momentum in many fields such as biosensing, imaging, drug delivery, and photocatalysis. Due to their efficient light harvesting, extraordinary upconversion photoluminescence, and excellent photoinduced electron transfer capabilities, the combination of CDs with photocatalytic materials will promote light absorption resulting in increased generation...

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The degradation of tetracycline by modified BiOCl nanosheets with carbon dots from the chlorella

Cited by 38 publications

References 59 publications

Visible-Light-Promoted Photocatalytic Applications of Carbon Dots: A Review

Visible-Light-Promoted Photocatalytic Applications of Carbon Dots: A Review

Synthesis, Functional Modifications, and Diversified Applications of Hybrid BiOCl-Based Heterogeneous Photocatalysts: A Review

Introduction to the Performance and Mechanism of Various Photocatalytic Materials Compounded with Carbon Dots

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