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Ma X, Deng L, Zou Z, Pan Z, Feng L, Huang Z, Liang Z, Liu X, Li M, Su Z, Zheng H. Novel portable photoelectrochemical sensor based on CdS/Au/TiO 2 nanotube arrays for sensitive, non-invasive, and instantaneous uric acid detection in saliva. Talanta 2024; 271:125646. [PMID: 38218058 DOI: 10.1016/j.talanta.2024.125646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/04/2024] [Accepted: 01/06/2024] [Indexed: 01/15/2024]
Abstract
Uric acid (UA) monitoring is the most effective method for diagnosis and treatment of gout, hyperuricemia, hypertension, and other diseases. However, challenges remain regarding detection efficiency and rapid on-site detection. Here, we first synthesized a CdS/Au/TiO2-NTAs Z-scheme heterojunction material using a titanium dioxide nanotube array (TiO2-NTAs) as the substrate and modified with gold nanoparticles (Au) and cadmium sulfide particles (CdS). This material achieves bandgap alignment to generate a large number of electron-hole pairs under illumination. Then, using CdS/Au/TiO2-NTAs as the working electrode and molecularly imprinted polymers (MIP) as the recognition unit, we constructed a portable photoelectrochemical (PEC) sensor for non-invasive instant detection of UA concentration in human saliva, which has unique advantages in the field of high-sensitivity PEC instant detection. The portable MIP-PEC sensor achieves a linear range of 0.01-50 μM and a detection limit as low as 5.07 nM (S/N = 3). At the same time, the portable MIP-PEC sensor exhibits excellent sensitivity, specificity as well as stability, and shows no statistically significant difference compared to traditional high-performance liquid chromatography (HPLC) in practical sample detection. Compared to traditional PEC modes, this work demonstrates a novel and universal method for high-sensitivity instant detection in the field of PEC.
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Affiliation(s)
- Xiaolong Ma
- Institute of Life Sciences, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Lijun Deng
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Ziwei Zou
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Ziping Pan
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Linlin Feng
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Zheng Huang
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Zhenwu Liang
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Xinli Liu
- Institute of Life Sciences, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Mei Li
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China.
| | - Zhiheng Su
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China.
| | - Hua Zheng
- Institute of Life Sciences, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China.
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Xu X, Xu X, Wang T, Xu M, Yang X, Hou J, Cao D, Wang Q. Construction of Z-scheme CdS/Ag/TiO 2 NTs photocatalysts for photocatalytic dye degradation and hydrogen evolution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 276:121215. [PMID: 35395460 DOI: 10.1016/j.saa.2022.121215] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/22/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
The ternary CdS/Ag/TiO2 NTs photocatalysts with indirect Z-scheme heterojunctions were synthesized by the photoreduction deposition of Ag and successive ionic layer adsorption and reaction (SILAR) of CdS on TiO2 nanotube arrays (TiO2 NTs). The elemental composition, microstructure, photoresponse and photoelectrochemical property of the photocatalyst were systematically characterized. The results proved that compared with binary heterojunction, the light absorption range of the ternary CdS/Ag/TiO2 NTs photocatalyst was significantly extended, and the photoelectron transportation efficiency was improved. Under sunlight irradiation, the photocatalytic capacity was verified by investigating the photodegradation of MB and RhB dyes. The CdS/Ag/TiO2 NTs exhibited the optimal photocatalytic performance with the degradation efficiency of 82.24% for RhB and 100% for MB. The synthesized CdS/Ag/TiO2 NTs had high photocatalytic hydrogen evolution capacity and stability, and the hydrogen production reached 806.33 μmol·cm-2. Based on the results of electron spin resonance spectroscopy (ESR) and free radical trapping, the photocatalytic reaction mechanism was explained. The synthesis of ternary CdS/Ag/TiO2 NTs provides a practical reference and guidance for designing high-efficient photocatalysts with Z-scheme heterojunctions toward solar energy development for H2 generation, pollutant remediation and photoelectric conversion.
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Affiliation(s)
- Xiaoling Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Xiaoxi Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Tianqi Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Mengxiao Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Xianglu Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Junwei Hou
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.
| | - Dandan Cao
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Qingyao Wang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
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Preparation and application of heterojunction KH570–TiO2/MXene/PAN membranes with photocatalytic degradation and photothermal conversion properties. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Hydrothermal construction of flower-like MoS2 on TiO2 NTs for highly efficient environmental remediation and photocatalytic hydrogen evolution. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118463] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zhu W, Cheng Y, Wang C, Pinna N, Lu X. Transition metal sulfides meet electrospinning: versatile synthesis, distinct properties and prospective applications. NANOSCALE 2021; 13:9112-9146. [PMID: 34008677 DOI: 10.1039/d1nr01070k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
One-dimensional (1D) electrospun nanomaterials have attracted significant attention due to their unique structures and outstanding chemical and physical properties such as large specific surface area, distinct electronic and mass transport, and mechanical flexibility. Over the past years, the integration of metal sulfides with electrospun nanomaterials has emerged as an exciting research topic owing to the synergistic effects between the two components, leading to novel and interesting properties in energy, optics and catalysis research fields for example. In this review, we focus on the recent development of the preparation of electrospun nanomaterials integrated with functional metal sulfides with distinct nanostructures. These functional materials have been prepared via two efficient strategies, namely direct electrospinning and post-synthesis modification of electrospun nanomaterials. In this review, we systematically present the chemical and physical properties of the electrospun nanomaterials integrated with metal sulfides and their application in electronic and optoelectronic devices, sensing, catalysis, energy conversion and storage, thermal shielding, adsorption and separation, and biomedical technology. Additionally, challenges and further research opportunities in the preparation and application of these novel functional materials are also discussed.
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Affiliation(s)
- Wendong Zhu
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
| | - Ya Cheng
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
| | - Ce Wang
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
| | - Nicola Pinna
- Institut für Chemie and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
| | - Xiaofeng Lu
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
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He Z, Rault F, Lewandowski M, Mohsenzadeh E, Salaün F. Electrospun PVDF Nanofibers for Piezoelectric Applications: A Review of the Influence of Electrospinning Parameters on the β Phase and Crystallinity Enhancement. Polymers (Basel) 2021; 13:E174. [PMID: 33418962 PMCID: PMC7825031 DOI: 10.3390/polym13020174] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 12/15/2022] Open
Abstract
Polyvinylidene fluoride (PVDF) is among the most attractive piezo-polymers due to its excellent piezoelectricity, lightweight, flexibility, high thermal stability, and chemical resistance. PVDF can exist under different forms of films, membranes, and (nano)fibers, and its piezoelectric property related to its β phase content makes it interesting for energy harvesters and wearable applications. Research investigation shows that PVDF in the form of nanofibers prepared by electrospinning has more flexibility and better air permeability, which make them more suitable for these types of applications. Electrospinning is an efficient technique that produces PVDF nanofibers with a high β phase fraction and crystallinity by aligning molecular dipoles (-CH2 and -CF2) along an applied voltage direction. Different nanofibers production techniques and more precisely the electrospinning method for producing PVDF nanofibers with optimal electrospinning parameters are the key focuses of this paper. This review article highlights recent studies to summarize the influence of electrospinning parameters such as process (voltage, distance, flow rate, and collector), solution (Mw, concentration, and solvent), and ambient (humidity and temperature) parameters to enhance the piezoelectric properties of PVDF nanofibers. In addition, recent development regarding the effect of adding nanoparticles in the structure of nanofibers on the improvement of the β phase is reviewed. Finally, different methods of measuring piezoelectric properties of PVDF nanofibrous membrane are discussed.
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Affiliation(s)
- Zhongchen He
- ENSAIT, GEMTEX—Laboratoire de Génie et Matériaux Textiles, F-59000 Lille, France; (Z.H.); (F.R.); (M.L.); (E.M.)
| | - François Rault
- ENSAIT, GEMTEX—Laboratoire de Génie et Matériaux Textiles, F-59000 Lille, France; (Z.H.); (F.R.); (M.L.); (E.M.)
| | - Maryline Lewandowski
- ENSAIT, GEMTEX—Laboratoire de Génie et Matériaux Textiles, F-59000 Lille, France; (Z.H.); (F.R.); (M.L.); (E.M.)
| | - Elham Mohsenzadeh
- ENSAIT, GEMTEX—Laboratoire de Génie et Matériaux Textiles, F-59000 Lille, France; (Z.H.); (F.R.); (M.L.); (E.M.)
- Junia, F-59000 Lille, France
- Univ. Lille, F-59000 Lille, France
| | - Fabien Salaün
- ENSAIT, GEMTEX—Laboratoire de Génie et Matériaux Textiles, F-59000 Lille, France; (Z.H.); (F.R.); (M.L.); (E.M.)
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