Functionalized Black Phosphorus Nanocomposite for Biosensing

Zhuge, Zhen; Tang, Yanhui; Tao, Jianwei; Zhao, Yun

doi:10.1002/celc.201801439

Cited by 27 publications

(12 citation statements)

References 60 publications

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“…In addition, the absorption band at 962 cm -1 could be attributed to the B-F stretching vibrations of ½BF 4 À anions. This indicates that PDDA-functionalized BP has been successfully prepared, and the PDDA-functionalized BP is successfully compounded into the 15-BP/Ag 2 CO 3 heterojunction photocatalyst, which could greatly improve the stability and light absorption of BP [52].…”

Section: Xrd and Ftir Spectroscopymentioning

confidence: 94%

Fabrication of direct Z-scheme black phosphorus nanosheets/Ag2CO3 heterojunction photocatalyst with enhanced stability and visible light photocatalytic activity

Wang

Zhao

et al. 2021

J Mater Sci

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In this paper, PDDA-functionalized black phosphorus nanosheets (BP) was used to construct BP/Ag 2 CO 3 heterojunction photocatalyst by a simple co-precipitation process. The morphology, photoelectrochemical, and photocatalytic performance of BP/Ag 2 CO 3 heterojunction photocatalyst were systematically characterized and analyzed. BP was proved to enhance the transport efficiency and restrain the recombination efficiency of the carriers in the BP/Ag 2 CO 3 heterojunction. At the same time, BP greatly suppressed the Ag 2 CO 3 photocorrosion and improved the stability for methyl orange (MO) degradation. After four cycles, compared with the 19.2% degradation rate of MO in pure Ag 2 CO 3 , the photocatalytic activity remained as high as 87.1% in 15-BP/Ag 2 CO 3 heterojunction. The Mott-Schottky and active species capture experiments enabled us to obtain the BP/Ag 2 CO 3 heterojunction band gap configuration, and propose the reaction mechanism of the direct Z-scheme. The in-situ X-ray photoelectron spectroscopy (XPS) analysis and work function calculation verified the charge transfer in BP/Ag 2 CO 3 direct Z-scheme heterojunction. This Z-scheme mechanism interpreted the enhanced photocatalytic stability of BP/ Ag 2 CO 3 for inhibiting the Ag ? photoreduction in the conduction band of Ag 2-CO 3 , and meanwhile elucidated the extremely improved photocatalytic activity by restraining the recombination of electron-hole pairs. This work is expected to Handling Editor: Mark Bissett.

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Section: Xrd and Ftir Spectroscopymentioning

confidence: 94%

Fabrication of direct Z-scheme black phosphorus nanosheets/Ag2CO3 heterojunction photocatalyst with enhanced stability and visible light photocatalytic activity

Wang

Zhao

et al. 2021

J Mater Sci

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“…It is evident that there is a considerable lack of experimental investigations for the functionalization of arsenene, antimonene, and bismuthene. Noncovalent coatings of BP with organic molecules include electrostatic interactions, vdW interactions, charge‐transfer mechanism, and hydrogen bonding …”

Section: Surface Functionalizationmentioning

confidence: 99%

“…Moreover, in the case of PLGA, the deposited organic material reduced the degradation of BP due to its hydrophobic nature and prevented water and oxygen from reaching the BP surface . Other examples of biocompatible polymer chains applied for modification of BP are poly‐ l ‐lysine (PLL; Table c) and a combination of an IL with poly(diallyldimethylammonium chloride) (PDDA; Table d) …”

Section: Surface Functionalizationmentioning

confidence: 99%

Noncovalent Functionalization of Pnictogen Surfaces: From Small Molecules to 2D Heterostructures

Ghodrati

Antonatos

Sofer

2019

Small

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Beyond graphene, 2D pnictogen polymers are rapidly growing among the family of 2D materials. Due to their unique properties, this group has received considerable interest in recent years. Those properties include tunable electronic band gaps, high charge carrier mobility, and in‐plane anisotropic properties. This Review covers the noncovalent functionalization of pnictogen surfaces considering experimental and theoretical studies. Noncovalent functionalization is of great importance for effective modulation of the electronic structure of these materials as well as improvement of their stability toward surface oxidation. This Review highlights their noncovalent modification by organic molecules, in which enhanced surface stability of phosphorene and generated functionalized materials for applications in biomedical, supercapacitors, energy storage, and biosensors. Moreover, the noncovalent interactions with small molecules show its significance for sensing applications. Lastly, the interactions of pnictogen sheets with other 2D materials and their applications for van der Waals heterostructure formation are discussed. Current state‐of‐the‐art as well as future perspectives in this field are covered.

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“…In recent years, some pioneering works have been reported about fabricating black phosphorus‐based electrochemical biosensors, including myoglobin sensor, [18] rabbit IgG sensor, [19] and hydrogen peroxide sensor [20] . For example, Zhao and coworkers have built a Hb/IL/PDDA/BP electrochemical sensor to realize highly sensitive detection of sodium nitrite [21] . Tao and coworkers have successfully synthesized a Hb−pLL−BP biosensing platform for hydrogen peroxide detection [22] .…”

Section: Introductionmentioning

confidence: 99%

A Novel Enzyme‐Free Biosensor for Hydrogen Peroxide Based on Black Phosphorus @Au‐Ag Nanohybrids

Jian

Zhao

et al. 2022

ChemistrySelect

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In this work, a novel BP@AuÀ Ag nanohybrid is fabricated by a facile ultrasonic method. A glassy carbon electrode (GCE) modified with these nanohybrids is found to be a viable enzyme-free sensor for H 2 O 2 detection. The deposition of Au nanoparticles on black phosphorus (BP) nanosheets enhances the stability of the electrode. Subsequent decoration of silver nanoparticles further dramatically improves the electrochemical performance owing to the synergetic effect. The as-prepared BP@AuÀ Ag/GCE displays excellent peak current response for H 2 O 2 reduction with a wide linear range (0.005-2.36 mM), low detection limit (1.09 μM), good stability, and negligible interference. The present work provides a new avenue for exploring novel BP-based enzyme-free biosensors.

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Functionalized Black Phosphorus Nanocomposite for Biosensing

Cited by 27 publications

References 60 publications

Fabrication of direct Z-scheme black phosphorus nanosheets/Ag2CO3 heterojunction photocatalyst with enhanced stability and visible light photocatalytic activity

Fabrication of direct Z-scheme black phosphorus nanosheets/Ag2CO3 heterojunction photocatalyst with enhanced stability and visible light photocatalytic activity

Noncovalent Functionalization of Pnictogen Surfaces: From Small Molecules to 2D Heterostructures

A Novel Enzyme‐Free Biosensor for Hydrogen Peroxide Based on Black Phosphorus @Au‐Ag Nanohybrids

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