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Guan Y, Xu F, Sun L, Luo Y, Cheng R, Zou Y, Liao L, Cao Z. Hydrogen Peroxide Electrochemical Sensor Based on Ag/Cu Bimetallic Nanoparticles Modified on Polypyrrole. SENSORS (BASEL, SWITZERLAND) 2023; 23:8536. [PMID: 37896629 PMCID: PMC10611109 DOI: 10.3390/s23208536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/08/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023]
Abstract
Due to the strong oxidizing properties of H2O2, excessive discharge of H2O2 will cause great harm to the environment. Moreover, H2O2 is also an energetic material used as fuel, with specific attention given to its safety. Therefore, it is of great importance to explore and prepare good sensitive materials for the detection of H2O2 with a low detection limit and high selectivity. In this work, a kind of hydrogen peroxide electrochemical sensor has been fabricated. That is, polypyrrole (PPy) has been electropolymerized on the glass carbon electrode (GCE), and then Ag and Cu nanoparticles are modified together on the surface of polypyrrole by electrodeposition. SEM analysis shows that Cu and Ag nanoparticles are uniformly deposited on the surface of PPy. Electrochemical characterization results display that the sensor has a good response to H2O2 with two linear intervals. The first linear range is 0.1-1 mM (R2 = 0.9978, S = 265.06 μA/ (mM × cm2)), and the detection limit is 0.027 μM (S/N = 3). The second linear range is 1-35 mM (R2 = 0.9969, 445.78 μA/ (mM × cm2)), corresponding to 0.063 μM of detection limit (S/N = 3). The sensor reveals good reproducibility (σ = 2.104), repeatability (σ = 2.027), anti-interference, and stability. The recoveries of the electrode are 99.84-103.00% (for 0.1-1 mM of linear range) and 98.65-104.80% (for 1-35 mM linear range). Furthermore, the costs of the hydrogen peroxide electrochemical sensor proposed in this work are reduced largely by using non-precious metals without degradation of the sensing performance of H2O2. This study provides a facile way to develop nanocomposite electrochemical sensors.
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Affiliation(s)
- Yanxun Guan
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (Y.G.); (Y.L.); (R.C.); (Y.Z.); (L.L.)
- School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin 541004, China
| | - Fen Xu
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (Y.G.); (Y.L.); (R.C.); (Y.Z.); (L.L.)
| | - Lixian Sun
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (Y.G.); (Y.L.); (R.C.); (Y.Z.); (L.L.)
| | - Yumei Luo
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (Y.G.); (Y.L.); (R.C.); (Y.Z.); (L.L.)
| | - Riguang Cheng
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (Y.G.); (Y.L.); (R.C.); (Y.Z.); (L.L.)
| | - Yongjin Zou
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (Y.G.); (Y.L.); (R.C.); (Y.Z.); (L.L.)
| | - Lumin Liao
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (Y.G.); (Y.L.); (R.C.); (Y.Z.); (L.L.)
- School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin 541004, China
| | - Zhong Cao
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science & Technology, Changsha 410114, China;
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Interfacial Characterization of Polypyrrole/AuNP Composites towards Electrocatalysis of Ascorbic Acid Oxidation. Molecules 2022; 27:molecules27185776. [PMID: 36144512 PMCID: PMC9504594 DOI: 10.3390/molecules27185776] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 08/28/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
Polypyrrole (PPy) is an interesting conducting polymer due to its good environmental stability, high conductivity, and biocompatibility. The association between PPy and metallic nanoparticles has been widely studied since it enhances electrochemical properties. In this context, gold ions are reduced to gold nanoparticles (AuNPs) directly on the polymer surface as PPy can be oxidized to an overoxidized state. This work proposes the PPy electrochemical synthesis followed by the direct reduction of gold on its surface in a fast reaction. The modified electrodes were characterized by electronic microscopic and infrared spectroscopy. The effect of reduction time on the electrochemical properties was evaluated by the electrocatalytic properties of the obtained material from the oxidation of ascorbic acid (AA) and electrochemical impedance spectroscopy studies. The presence of AuNPs improved the AA electrocatalysis by reducing oxidation potential and lowering charge transfer resistance. EIS data were fitted using a transmission line model. The results indicated an increase in the electronic transport of the polymeric film in the presence of AuNPs. However, PPy overoxidation occurs when the AuNPs’ deposition is higher than 30 s. In PPy/AuNPs 15 s, smaller and less agglomerated particles were formed with fewer PPy overoxidized, confirming the observed electrocatalytic behavior.
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Hang DR, Pan YQ, Sharma KH, Chou MMC, Islam SE, Wu HF, Liang CT. 2D CTAB-MoSe 2 Nanosheets and 0D MoSe 2 Quantum Dots: Facile Top-Down Preparations and Their Peroxidase-Like Catalytic Activity for Colorimetric Detection of Hydrogen Peroxide. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2045. [PMID: 33081190 PMCID: PMC7602750 DOI: 10.3390/nano10102045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/11/2020] [Accepted: 10/13/2020] [Indexed: 02/02/2023]
Abstract
We report the facile and economic preparation of two-dimensional (2D) and 0D MoSe2 nanostructures based on systematic and non-toxic top-down strategies. We demonstrate the intrinsic peroxidase-like activity of these MoSe2 nanostructures. The catalytic processes begin with facilitated decomposition of H2O2 by using MoSe2 nanostructures as peroxidase mimetics. In turn, a large amount of generated radicals oxidizes 3,3,5,5-tetramethylbenzidine (TMB) to produce a visible color reaction. The enzymatic kinetics of our MoSe2 nanostructures complies with typical Michaelis-Menten theory. Catalytic kinetics study reveals a ping-pong mechanism. Moreover, the primary radical responsible for the oxidation of TMB was identified to be Ȯ2- by active species-trapping experiments. Based on the peroxidase mimicking property, we developed a new colorimetric method for H2O2 detection by using 2D and 0D MoSe2 nanostructures. It is shown that the colorimetric sensing capability of our MoSe2 catalysts is comparable to other 2D materials-based colorimetric platforms. For instance, the linear range of H2O2 detection is between 10 and 250 μM by using 2D functionalized MoSe2 nanosheets as an artificial enzyme. Our work develops a systematic approach to use 2D materials to construct novel enzyme-free mimetic for a visual assay of H2O2, which has promising prospects in medical diagnosis and food security monitoring.
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Affiliation(s)
- Da-Ren Hang
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (Y.-Q.P.); (K.H.S.); (M.M.C.C.)
- Center of Crystal Research, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Ya-Qi Pan
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (Y.-Q.P.); (K.H.S.); (M.M.C.C.)
| | - Krishna Hari Sharma
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (Y.-Q.P.); (K.H.S.); (M.M.C.C.)
| | - Mitch M. C. Chou
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (Y.-Q.P.); (K.H.S.); (M.M.C.C.)
- Center of Crystal Research, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Sk Emdadul Islam
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan;
| | - Hui-Fen Wu
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
| | - Chi-Te Liang
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan;
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Silver nanoparticles-embedded poly(1-naphthylamine) nanospheres for low-cost non-enzymatic electrochemical H2O2 sensor. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-03053-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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5
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Jlassi K, Sliem MH, Eid K, Krupa I, Chehimi MM, Abdullah AM. Novel Enzyme-Free Multifunctional Bentonite/Polypyrrole/Silver Nanocomposite Sensor for Hydrogen Peroxide Detection over a Wide pH Range. SENSORS 2019; 19:s19204442. [PMID: 31615006 PMCID: PMC6832523 DOI: 10.3390/s19204442] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 12/16/2022]
Abstract
Precise designs of low-cost and efficient catalysts for the detection of hydrogen peroxide (H2O2) over wide ranges of pH are important in various environmental applications. Herein, a versatile and ecofriendly approach is presented for the rational design of ternary bentonite-silylpropyl-polypyrrole/silver nanoarchitectures (denoted as BP-PS-PPy/Ag) via the in-situ photo polymerization of pyrrole with salinized bentonite (BP-PS) in the presence of silver nitrate. The Pyrrolyl-functionalized silane (PS) is used as a coupling agent for tailoring the formation of highly exfoliated BP-PS-PPy sheet-like nanostructures ornamented with monodispersed Ag nanoparticles (NPs). Taking advantage of the combination between the unique physicochemical properties of BP-PS-PPy and the outstanding catalytic merits of Ag nanoparticles (NPs), the as-synthesized BP-PS-PPy/Ag shows a superior electrocatalytic reduction and high-detection activity towards H2O2 under different pH conditions (from 3 to 10). Intriguingly, the UV-light irradiation significantly enhances the electroreduction activity of H2O2 substantially, compared with the dark conditions, due to the high photoelectric response properties of Ag NPs. Moreover, BP-PS-PPy/Ag achived a quick current response with a detection limit at 1 μM within only 1 s. Our present approach is green, facile, scalable and renewable.
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Affiliation(s)
- Khouloud Jlassi
- Center for Advanced Materials, Qatar University, Doha 2713, Qatar.
| | - Mostafa H Sliem
- Center for Advanced Materials, Qatar University, Doha 2713, Qatar.
| | - Kamel Eid
- Center for Advanced Materials, Qatar University, Doha 2713, Qatar.
| | - Igor Krupa
- Center for Advanced Materials, Qatar University, Doha 2713, Qatar.
| | - Mohamed M Chehimi
- University Paris Est, CNRS, UMR7182, ICMPE, UPEC, F-94320 Thais, France.
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Novel green synthesis of silver nanoparticles using clammy cherry (Cordia obliqua Willd) fruit extract and investigation on its catalytic and antimicrobial properties. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1302-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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7
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Kanjirathamathadathil Saidu F, Joseph A, Thomas GV. Synthesis of novel poly(1‐naphthylamine)‐silver nanocomposites and its catalytic studies on reduction of 4‐nitrophenol and methylene blue. J Appl Polym Sci 2019. [DOI: 10.1002/app.48318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Femina Kanjirathamathadathil Saidu
- Department of ChemistrySt. Joseph's College Moolamattom 685591 Kerala India
- Department of ChemistryMaharajas College Ernakulam 682011 Kerala India
| | - Alex Joseph
- Department of ChemistryNewman College Thodupuzha 685585 Kerala India
| | - George V. Thomas
- Department of ChemistrySt. Joseph's College Moolamattom 685591 Kerala India
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Žalnėravičius R, Gedminas A, Ruzgas T, Jagminas A. Nanoplatelet MoS2 arrays decorated with Pt nanoparticles for non-enzymatic detection of hydrogen peroxide. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.03.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Belachew N, Meshesha DS, Basavaiah K. Green syntheses of silver nanoparticle decorated reduced graphene oxide using l-methionine as a reducing and stabilizing agent for enhanced catalytic hydrogenation of 4-nitrophenol and antibacterial activity. RSC Adv 2019; 9:39264-39271. [PMID: 35540644 PMCID: PMC9076085 DOI: 10.1039/c9ra08536j] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 11/25/2019] [Indexed: 11/21/2022] Open
Abstract
Herein, we have reported a facile and green synthesis approach of Ag NP decorated reduced graphene oxide (RGO) through an in situ self-assembly method in the presence of l-methionine (l-Met) as reducing and stabilizing agent. The electronic properties, crystal structure, and morphology of the as-synthesized RGO–Ag nanocomposite were investigated by UV-Visible (UV-Vis) spectroscopy, Fourier transform-infrared (FTIR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) techniques. UV-Vis and FTIR show the effective reduction of GO and the formation of Ag NPs using l-Met. FESEM, TEM, and XRD analysis show the successful impregnation of Ag NPs into RGO with a 23 nm average crystallite size. The RGO–Ag nanocomposite with NaBH4 shows a fast-catalytic reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AMP). The enhanced catalytic activity of RGO–Ag nanocomposites can be attributed to the synergistic effect of improved adsorption capacity and the absence of agglomeration of Ag nanoparticles. Moreover, RGO–Ag showed strong antibacterial activity against B. subtilis and E. coli. Herein, we have reported a facile and green synthesis approach of Ag NP decorated reduced graphene oxide (RGO) through an in situ self-assembly method in the presence of l-methionine (l-Met) as reducing and stabilizing agent.![]()
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Affiliation(s)
- Neway Belachew
- Department of Chemistry
- Debre Berhan University
- Debre Berhan
- Ethiopia
| | | | - Keloth Basavaiah
- Department of Inorganic & Analytical Chemistry
- Andhra University
- Visakhapatnam-530003
- India
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Li D, Liu X, Yi R, Zhang J, Su Z, Wei G. Electrochemical sensor based on novel two-dimensional nanohybrids: MoS2nanosheets conjugated with organic copper nanowires for simultaneous detection of hydrogen peroxide and ascorbic acid. Inorg Chem Front 2018. [DOI: 10.1039/c7qi00542c] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MoS2nanosheets were conjugated with organic copper nanowires for fabrication of electrochemical hydrogen peroxide and ascorbic acid sensors.
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Affiliation(s)
- Dapeng Li
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
- Beijing Key Laboratory of Advanced Functional Polymer Composites
| | - Xueying Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
- Beijing Key Laboratory of Advanced Functional Polymer Composites
| | - Ran Yi
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
- Beijing Key Laboratory of Advanced Functional Polymer Composites
| | - Jiaxian Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
- Beijing Key Laboratory of Advanced Functional Polymer Composites
| | - Zhiqiang Su
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
- Beijing Key Laboratory of Advanced Functional Polymer Composites
| | - Gang Wei
- Faculty of Production Engineering
- University of Bremen
- D-28359 Bremen
- Germany
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Mazzotta E, Caroli A, Primiceri E, Monteduro AG, Maruccio G, Malitesta C. All-electrochemical approach for the assembly of platinum nanoparticles/polypyrrole nanowire composite with electrocatalytic effect on dopamine oxidation. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3693-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Olenin AY. Methods of nonenzymatic determination of hydrogen peroxide and related reactive oxygen species. JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1134/s1061934817030108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Yu X, Zhang W, Zhang P, Su Z. Fabrication technologies and sensing applications of graphene-based composite films: Advances and challenges. Biosens Bioelectron 2017; 89:72-84. [DOI: 10.1016/j.bios.2016.01.081] [Citation(s) in RCA: 173] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/01/2016] [Accepted: 01/28/2016] [Indexed: 01/25/2023]
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14
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Li D, Liu T, Yu X, Wu D, Su Z. Fabrication of graphene–biomacromolecule hybrid materials for tissue engineering application. Polym Chem 2017. [DOI: 10.1039/c7py00935f] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In this review, we demonstrated the recent advances in the fabrication strategies of graphene–biomacromolecule hybrid materials and their applications in the field of tissue engineering, such as implant materials, cell culture scaffolds, and regenerative medicine.
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Affiliation(s)
- Dapeng Li
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
- Beijing Key Laboratory of Advanced Functional Polymer Composites
| | - Tianjiao Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
- Beijing Key Laboratory of Advanced Functional Polymer Composites
| | - Xiaoqing Yu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
- Beijing Key Laboratory of Advanced Functional Polymer Composites
| | - Di Wu
- Beijing Key Laboratory of Advanced Functional Polymer Composites
- Beijing University of Chemical Technology
- China
| | - Zhiqiang Su
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
- Beijing Key Laboratory of Advanced Functional Polymer Composites
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15
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Enhanced photocatalytic activity of nanostructured titanium dioxide/polyaniline hybrid photocatalysts. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.08.029] [Citation(s) in RCA: 357] [Impact Index Per Article: 44.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
A nanocomposite of indigo carmine doped polypyrrole/silver nanoparticles was obtained by a one-step electrochemical process. The nanocomposite was characterized by scanning electron microscopy, infrared spectroscopy, ultraviolet-visible-near infrared spectroscopy, and cyclic voltammetry. The simple one-step process allowed the growth of silver nanoparticles during the polymerization of polypyrrole, resulting in films with electrochromic behavior and improved electroactivity. In addition, polypyrrole chains in the nanocomposite were found to present longer conjugation length than pristine polypyrrole films.
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Li Y, Zhang M, Zhang X, Xie G, Su Z, Wei G. Nanoporous Carbon Nanofibers Decorated with Platinum Nanoparticles for Non-Enzymatic Electrochemical Sensing of H₂O₂. NANOMATERIALS (BASEL, SWITZERLAND) 2015; 5:1891-1905. [PMID: 28347102 PMCID: PMC5304789 DOI: 10.3390/nano5041891] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 10/25/2015] [Accepted: 10/30/2015] [Indexed: 12/14/2022]
Abstract
We describe the preparation of nanoporous carbon nanofibers (CNFs) decorated with platinum nanoparticles (PtNPs) in this work by electrospining polyacrylonitrile (PAN) nanofibers and subsequent carbonization and binding of PtNPs. The fabricated nanoporous CNF-PtNP hybrids were further utilized to modify glass carbon electrodes and used for the non-enzymatic amperometric biosensor for the highly sensitive detection of hydrogen peroxide (H₂O₂). The morphologies of the fabricated nanoporous CNF-PtNP hybrids were observed by scanning electron microscopy, transmission electron microscopy, and their structure was further investigated with Brunauer-Emmett-Teller (BET) surface area analysis, X-ray photoelectron spectroscopy, X-ray diffraction, and Raman spectrum. The cyclic voltammetry experiments indicate that CNF-PtNP modified electrodes have high electrocatalytic activity toward H₂O₂ and the chronoamperometry measurements illustrate that the fabricated biosensor has a high sensitivity for detecting H₂O₂. We anticipate that the strategies utilized in this work will not only guide the further design and fabrication of functional nanofiber-based biomaterials and nanodevices, but also extend the potential applications in energy storage, cytology, and tissue engineering.
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Affiliation(s)
- Yang Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Mingfa Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Xiaopeng Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Guocheng Xie
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Zhiqiang Su
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Gang Wei
- Hybrid Materials Interface Group, Faculty of Production Engineering, University of Bremen, Bremen D-28359, Germany.
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