ZIF-8-coated CdS popcorn-like photocatalyst with enhanced visible-light-driven photocatalytic activity for degradation of toluene

Zhang, Caisong; Zhang, Jiali; Ou, Keru; Liu, Yongxin; Guo, Zanru; Chen, Xi; Cheng, Guangzeng; Hu, Fengping

doi:10.1016/j.colsurfa.2021.126257

Cited by 23 publications

(7 citation statements)

References 39 publications

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“…Additionally, the diffraction peaks observed at 2θ (deg) = 10.4°, 12.8°, 14.7°,16.5°, and 18.1° correspond to the high crystallinity crystal planes of ZIF-8. The results suggest that CdS are uniformly anchored onto the surface of ZIF-8 . XPS spectra of ZIF-8 exhibit a prominent C 1s peak at 284.6 eV, a Zn 2p peak around 1000 eV, and an N 1s peak at approximately 400 eV.…”

Section: Resultsmentioning

confidence: 83%

The Compact Integration of Multiple Exonuclease III-Assisted Cyclic Amplification Units for High-Efficiency Ratiometric Electrochemiluminescence Detection of MRSA

Sun,

Cheng,

et al. 2024

Anal. Chem.

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Methicillin-resistant Staphylococcus aureus (MRSA) exhibits multiresistance to a plethora of antibiotics, therefore, accurate detection methods must be employed for timely identification to facilitate effective infection control measures. Herein, we construct a high-efficiency ratiometric electrochemiluminescent (ECL) biosensor that integrates multiple exonuclease (Exo) III-assisted cyclic amplification units for rapid detection of trace amounts of MRSA. The target bacteria selectively bind to the aptamer, triggering the release of two single-stranded DNAs. One released DNA strand initiates the opening of a hairpin probe, inducing exonuclease cleavage to generate a single strand that can form a T-shaped structure with the double strand connecting the oxidation−reduction (O−R) emitter of N-(4-aminobutyl)-N-ethylisoluminol gold (ABEI-Au). Consequently, ABEI-Au is released upon Exo III cleavage. The other strand unwinds the hairpin DNA structure on the surface of the reduction− oxidation (R−O) emitter ZIF-8@CdS, facilitating the subsequent release of a specific single strand through Exo III cleavage. This process effectively anchors the cathode-emitting material to the electrode. The Fe(III) metal-organogel (Fe-MOG) is selected as a substrate, in which the catalytic reduction of hydrogen peroxide by Fe(III) active centers accelerates the generation of reactive oxygen species and enhances signals from both ABEI-Au and ZIF-

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Section: Resultsmentioning

confidence: 83%

The Compact Integration of Multiple Exonuclease III-Assisted Cyclic Amplification Units for High-Efficiency Ratiometric Electrochemiluminescence Detection of MRSA

Sun,

Cheng,

et al. 2024

Anal. Chem.

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“…As delineated in Figure 16B, the Mott-Schottky plots for UCZ possess positive slopes, which are customary for an n-type feature. The flat band potential of UCZ is deduced to be À0.66 V, 57 established on the x-axis intersection. MnO 2 , on the other hand, exhibits p-type semiconductor properties, suggesting that a heterojunction might be formed when combined with UCZ.…”

Section: Photocatalysis Mechanismmentioning

confidence: 96%

NaGdF₄:Yb,Er@ZIF‐8/MnO₂ for photocatalytic removal of organic pollutants and pathogenic bacteria

Shu,

Zhao,

Linghu

et al. 2023

EcoMat

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In the field of environmental science, efficient removal of organic pollutants and pathogenic bacteria from wastewater using a photocatalytic process that responds to the full spectrum of sunlight is crucial. In this study, a highly effective nanoheterojunction called NaGdF4:Yb,Er@zeolitic imidazolate framework‐8/manganese dioxide (NaGdF4:Yb,Er@ZIF‐8/MnO2, UCZM) was synthesized. This nanoheterojunction exhibits a remarkable ability to respond to the entire range of ultraviolet, visible, and infrared light. Under simulated sunlight, UCZM demonstrated outstanding performance in degrading malachite green dye, with a degradation efficiency of 92.6% within 90 min. Moreover, UCZM completely inactivated both Staphylococcus aureus and Escherichia coli within 20 min under simulated sunlight. Mechanistic studies revealed that NaGdF4:Yb,Er played a crucial role in activating ZIF‐8 and MnO2 through Förster resonance energy transfer, facilitating the photocatalytic process. The formation of a Z‐type heterojunction in UCZM promoted the efficient separation of photogenerated carriers. Furthermore, UCZM exhibited excellent biosafety properties. This study represents the first exploration of a composite material composed of UCNPs, ZIF‐8, and MnO2 for photocatalytic applications. The findings highlight the potential of this novel nanoheterojunction design, which exhibits a full spectral response, for tackling water pollution through efficient photocatalytic degradation of organic pollutants and inactivation of pathogenic bacteria.image

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“…66 As a result, photoactive semiconductors are adopted together with ZIF-67 and ZIF-8 to construct binary or ternary heterojunction photocatalysts. [67][68][69] Other MOFs Among the huge number of MOFs, HKUST-1 (Hong Kong University of Science and Technology) and PCN (Porous Coordination Network) MOFs deserve attention as photocatalysts. HKUST-1 is a 3D square-shaped cubic MOF composed of H 3 BTC ligands coordinating copper ions in octahedron lattice.…”

Section: Zif Family (Zeolitic Imidazolate Framework)mentioning

confidence: 99%

“…However, the activity of ZIF‐67 in visible light is very low because of its limited absorption in the solar spectrum due to relatively small extinction coefficients of Co 2+ d–d transitions (~100–1000 mol·L −1 ·cm −1 ) 66 . As a result, photoactive semiconductors are adopted together with ZIF‐67 and ZIF‐8 to construct binary or ternary heterojunction photocatalysts 67‐69 …”

Section: Mof‐based Photocatalystsmentioning

confidence: 99%

Metal–organic framework‐based heterojunction photocatalysts for organic pollutant degradation: design, construction, and performances

Belousov

Fukina

Koryagin

2022

J of Chemical Tech & Biotech

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Heterogeneous photocatalysis has been considered one of the most attractive alternative routes to transforming naturally abundant, clean, and sustainable solar energy into chemical energy. Nowadays, the most popular heterogeneous photocatalyst, titanium dioxide, has already found applications for water splitting to produce hydrogen and oxygen, for the degradation of organic pollutants, for air purification, and for the creation of self‐cleaning coatings. However, TiO2 has a significant limitation: a large band gap (3.0–3.4 eV) that makes it impossible to use anything other than ultraviolet illumination to initiate photocatalytic processes. With a focus on efficient solar‐energy utilization, the development of new photocatalysts that are sensitive to visible light is an important direction in the theory and practice of heterogeneous photocatalysis. In this regard, the use of metal–organic frameworks (MOFs) is an attractive route; they have emerged as an interesting class of materials for applications in photoreactions due to their flexible tunability in composition, structure, and functional properties, along with their facilitated adsorption towards chemicals and their efficient light absorption. Moreover, they can be composed with other semiconductors to produce heterojunctions (e.g., type‐II, Z‐scheme, and S‐scheme), whose effectiveness in photogenerated charge separation has already been proven by many examples. The present critical review reports progress over the last 5 years in the preparation and activity of metal–organic framework‐based heterojunction photocatalysts for the degradation of organic pollutants. © 2022 Society of Chemical Industry (SCI).

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ZIF-8-coated CdS popcorn-like photocatalyst with enhanced visible-light-driven photocatalytic activity for degradation of toluene

Cited by 23 publications

References 39 publications

The Compact Integration of Multiple Exonuclease III-Assisted Cyclic Amplification Units for High-Efficiency Ratiometric Electrochemiluminescence Detection of MRSA

The Compact Integration of Multiple Exonuclease III-Assisted Cyclic Amplification Units for High-Efficiency Ratiometric Electrochemiluminescence Detection of MRSA

NaGdF₄:Yb,Er@ZIF‐8/MnO₂ for photocatalytic removal of organic pollutants and pathogenic bacteria

Metal–organic framework‐based heterojunction photocatalysts for organic pollutant degradation: design, construction, and performances

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ZIF-8-coated CdS popcorn-like photocatalyst with enhanced visible-light-driven photocatalytic activity for degradation of toluene

Cited by 23 publications

References 39 publications

The Compact Integration of Multiple Exonuclease III-Assisted Cyclic Amplification Units for High-Efficiency Ratiometric Electrochemiluminescence Detection of MRSA

The Compact Integration of Multiple Exonuclease III-Assisted Cyclic Amplification Units for High-Efficiency Ratiometric Electrochemiluminescence Detection of MRSA

NaGdF4:Yb,Er@ZIF‐8/MnO2 for photocatalytic removal of organic pollutants and pathogenic bacteria

Metal–organic framework‐based heterojunction photocatalysts for organic pollutant degradation: design, construction, and performances

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Product

Resources

About

NaGdF₄:Yb,Er@ZIF‐8/MnO₂ for photocatalytic removal of organic pollutants and pathogenic bacteria