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Benali E, Saher L, Benali A, Bejar M, Dhahri E, Wu J, Peng L, Gordo P, Pina J, Costa B. Synthesis, characterization, and sensitivity tests of La 0.8Ba 0.1Bi 0.1FeO 3 nanoparticles towards a few parts-per-billion of acetone gas. Heliyon 2024; 10:e26778. [PMID: 38444509 PMCID: PMC10912244 DOI: 10.1016/j.heliyon.2024.e26778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/14/2024] [Accepted: 02/20/2024] [Indexed: 03/07/2024] Open
Abstract
In the present paper, the La0.8Ba0.1Bi0.1FeO3 powders were synthesized via the auto-combustion method. The optical, the positron annihilation spectroscopy and the gas sensing properties of our sample were investigated simultaneously. FTIR spectrum revealed the antisymmetric deformation vibrations of the Fe-O and Fe-O-Fe bonds inside the octahedron FeO6. The optical bandgap (Egap) of the La0.8Ba0.1Bi0.1FeO3 compound was found to be equal to 2.23 eV. We confirmed by the positron annihilation studies, the existence of open volume defects and vacancy sized defects, at the grain/interfaces between vacancy clusters and grains at the interfaces intersection (triple-lines). Notably, the La0.8Ba0.1Bi0.1FeO3 perovskite exhibits an excellent response toward acetone gas, with ultra-fast response and recovery times to some parts-per-billion (ppb) of this tested gas.
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Affiliation(s)
- E.M. Benali
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, B.P. 1171, 3000, Sfax, Tunisia
- University of Coimbra, CFisUC, Physics Department, Rua Larga, P-3004-516, Coimbra, Portugal
| | - L. Saher
- Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques, CRAPC, BP384, Bou-Ismail, 42004, Tipaza, Algeria
| | - A. Benali
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, B.P. 1171, 3000, Sfax, Tunisia
- University of Coimbra, CFisUC, Physics Department, Rua Larga, P-3004-516, Coimbra, Portugal
- I3N and Physics Department, University of Aveiro, 3810-193, Aveiro, Portugal
| | - M. Bejar
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, B.P. 1171, 3000, Sfax, Tunisia
- Faculté des Sciences de Monastir, Université de Monastir, Avenue de l’Environnement, 5019, Monastir, Tunisia
| | - E. Dhahri
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, B.P. 1171, 3000, Sfax, Tunisia
| | - Jiangtao Wu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Lin Peng
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - P.M. Gordo
- University of Coimbra, CFisUC, Physics Department, Rua Larga, P-3004-516, Coimbra, Portugal
| | - J. Pina
- University of Coimbra, CQC-IMS, Department of Chemistry, Rua Larga, 3004-535, Coimbra, Portugal
| | - B.F.O. Costa
- University of Coimbra, CFisUC, Physics Department, Rua Larga, P-3004-516, Coimbra, Portugal
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2
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Hussain A, Lou B, Bushira FA, Xia S, Liu F, Guan Y, Chen W, Xu G. Ultrafast Response and High Selectivity of Diethylamine Gas Sensors at Room Temperature Using MOF-Derived 1D CuO Nano-Ellipsoids. Anal Chem 2023; 95:17568-17576. [PMID: 37988575 DOI: 10.1021/acs.analchem.3c02890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Environmental and health monitoring requires low-cost, high-performance diethylamine (DEA) sensors. Materials based on metal-organic frameworks (MOFs) can detect hazardous gases due to their large specific surface area, many metal sites, unsaturated sites, functional connectivity, and easy calcination to remove the scaffold. However, developing facile materials with high sensitivity and selectivity in harsh environments for accurate DEA detection at a low detection limit (LOD) at room temperature (RT) is challenging. In this study, p-type semiconducting porous CuOx sensing materials were synthesized using a simple solvothermal process and annealed in an argon atmosphere at three different temperatures (x = 400, 600, and 800 °C). Significant variations in particle size, specific area, crystallite size, and shape were noticed when the annealing temperature was elevated. Cu-MIL-53 annealed at 400 °C (CuO-400) has a typical nanoellipsoid (NEs) shape with a length of 61.5 nm and a diameter of 33.2 nm. Surprisingly, CuO-400 NEs showed an excellent response to DEA with an ultra-LOD (Rg/Ra = 7.3 @ 100 ppb, 55% relative humidity), excellent selectivity and sensitivity (Rg/Ra = 236 @ 15 ppm), exceptional long-term stability and repeatability, and a fast response/recovery period at RT, outperforming most previously reported materials. CuO-400 NEs have outstanding gas-sensing characteristics due to their high porosity, 1D nanostructure, unsaturated Cu sites (Cu+ and Cu2+), large specific surface area, and numerous oxygen vacancies. This study presents a generic approach to produce future CuO derived from Cu-MOFs-sensitive materials, revealing new insights into the design of effective sensors for environmental monitoring at RT.
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Affiliation(s)
- Altaf Hussain
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, No. 96 Jinzhai Road, Hefei 230026, Anhui, P. R. China
| | - Baohua Lou
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, No. 96 Jinzhai Road, Hefei 230026, Anhui, P. R. China
| | - Fuad Abduro Bushira
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, No. 96 Jinzhai Road, Hefei 230026, Anhui, P. R. China
| | - Shiyu Xia
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, No. 96 Jinzhai Road, Hefei 230026, Anhui, P. R. China
| | - Fangshuo Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, No. 96 Jinzhai Road, Hefei 230026, Anhui, P. R. China
| | - Yiran Guan
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, No. 96 Jinzhai Road, Hefei 230026, Anhui, P. R. China
| | - Wei Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, No. 96 Jinzhai Road, Hefei 230026, Anhui, P. R. China
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, Guangxi, P. R. China
| | - Guobao Xu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, No. 96 Jinzhai Road, Hefei 230026, Anhui, P. R. China
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3
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Khorramifar A, Karami H, Lvova L, Kolouri A, Łazuka E, Piłat-Rożek M, Łagód G, Ramos J, Lozano J, Kaveh M, Darvishi Y. Environmental Engineering Applications of Electronic Nose Systems Based on MOX Gas Sensors. SENSORS (BASEL, SWITZERLAND) 2023; 23:5716. [PMID: 37420880 PMCID: PMC10300923 DOI: 10.3390/s23125716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/05/2023] [Accepted: 06/12/2023] [Indexed: 07/09/2023]
Abstract
Nowadays, the electronic nose (e-nose) has gained a huge amount of attention due to its ability to detect and differentiate mixtures of various gases and odors using a limited number of sensors. Its applications in the environmental fields include analysis of the parameters for environmental control, process control, and confirming the efficiency of the odor-control systems. The e-nose has been developed by mimicking the olfactory system of mammals. This paper investigates e-noses and their sensors for the detection of environmental contaminants. Among different types of gas chemical sensors, metal oxide semiconductor sensors (MOXs) can be used for the detection of volatile compounds in air at ppm and sub-ppm levels. In this regard, the advantages and disadvantages of MOX sensors and the solutions to solve the problems arising upon these sensors' applications are addressed, and the research works in the field of environmental contamination monitoring are overviewed. These studies have revealed the suitability of e-noses for most of the reported applications, especially when the tools were specifically developed for that application, e.g., in the facilities of water and wastewater management systems. As a general rule, the literature review discusses the aspects related to various applications as well as the development of effective solutions. However, the main limitation in the expansion of the use of e-noses as an environmental monitoring tool is their complexity and lack of specific standards, which can be corrected through appropriate data processing methods applications.
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Affiliation(s)
- Ali Khorramifar
- Department of Biosystems Engineering, University of Mohaghegh Ardabili, Ardabil 56199, Iran; (A.K.); (A.K.)
| | - Hamed Karami
- Department of Petroleum Engineering, Knowledge University, Erbil 44001, Iraq;
| | - Larisa Lvova
- Department of Chemical Science and Technologies, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Alireza Kolouri
- Department of Biosystems Engineering, University of Mohaghegh Ardabili, Ardabil 56199, Iran; (A.K.); (A.K.)
| | - Ewa Łazuka
- Department of Applied Mathematics, Faculty of Technology Fundamentals, Lublin University of Technology, 20-618 Lublin, Poland; (E.Ł.); (M.P.-R.)
| | - Magdalena Piłat-Rożek
- Department of Applied Mathematics, Faculty of Technology Fundamentals, Lublin University of Technology, 20-618 Lublin, Poland; (E.Ł.); (M.P.-R.)
| | - Grzegorz Łagód
- Department of Water Supply and Wastewater Disposal, Faculty of Environmental Engineering, Lublin University of Technology, 20-618 Lublin, Poland;
| | - Jose Ramos
- College of Computing and Engineering, Nova Southeastern University (NSU), 3301 College Avenue, Fort Lauderdale, FL 33314-7796, USA;
| | - Jesús Lozano
- Department of Electric Technology, Electronics and Automation, University of Extremadura, Avda. De Elvas S/n, 06006 Badajoz, Spain;
| | - Mohammad Kaveh
- Department of Petroleum Engineering, Knowledge University, Erbil 44001, Iraq;
| | - Yousef Darvishi
- Department of Biosystems Engineering, University of Tehran, Tehran P.O. Box 113654117, Iran;
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Jamwal D, Mutreja V, Mehta SK, Katoch A, Kim SS. Tungsten oxide nanostructures peculiarity and photocatalytic activity for the efficient elimination of the organic pollutant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27891-5. [PMID: 37253911 DOI: 10.1007/s11356-023-27891-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 05/20/2023] [Indexed: 06/01/2023]
Abstract
The WO3 nanostructures were synthesized by a simple hydrothermal route in the presence of C14TAB and gemini-based twin-tail surfactant. The impact of using these special shape and size directing agents for the synthesis of nanostructures was observed in the form of different shapes and sizes. The WO3 web of chains type nanostructure was obtained using C14TAB in comparison to the cube-shaped nanoparticles through twin-tail surfactant. On contrary, the twin-tail surfactant provides sustainable and controlled growth of cube shape nanoparticles of size ~ 15 nm nearly half of the size ~ 35 nm obtained using conventional surfactant C14TAB, respectively. For the detailed structural features, the Williamson-Hall analysis method was implemented to find out the crystalline size and lattice strain of the prepared nanostructures. Owing to the strong quantum confinement effect, the WO3 cube-shaped nanoparticles with an optical band gap of 2.69 eV of the prepared nanoparticles showed excellent photocatalytic efficacy toward organic pollutant (fast green FCF) compared to the web of chain nanostructures with an optical band gap of 2.66 eV. The ability of the prepared systems to decompose the organic pollutant (fast green FCF) in water was tested under visible light irradiations. The percentage degradation was found to be 94% and 86% for WO3 cube-shaped nanoparticles and WO3 web of chains, respectively. The simplicity of the fabrication method and the high photocatalytic performance of the systems can be promising in environmental applications to treat water pollution.
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Affiliation(s)
- Deepika Jamwal
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Vishal Mutreja
- Department of Chemistry, Chandigarh University, Mohali, 140413, India
| | - Surinder Kumar Mehta
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Akash Katoch
- Centre for Nanoscience and Nanotechnology, University Institute of Science, Panjab University, Chandigarh, 160014, India.
| | - Sang Sub Kim
- Department of Materials Science and Engineering, Inha University, Incheon, 22212, Republic of Korea
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5
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Zhao L, Zhang J, Zhang Z, Zhu Y, Zong Y, Bai C, Wei T, Ren Y, Ma J. Electron-transfer pathways insights into contaminants oxidized by Cu-OOSO 3- intermediate: Effects of oxidation states of Cu and solution pH values. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130881. [PMID: 36758434 DOI: 10.1016/j.jhazmat.2023.130881] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 01/13/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
The copper-peroxy complex (Cu-OOSO3-) metastable intermediate has been confirmed to oxidize contaminants via a single-electron-transfer pathway or an oxygen-atom-transfer pathway. And the effects of Cu oxidation states and reaction pH conditions on the intermediate properties have not been explored in depth. Here, copper oxide (CuOx) catalysts with different Cu oxidation states were synthesized by a simple precipitation method by controlling the reaction temperature from 0 to 45 °C. CuOx displayed a strong catalytic dependence on the Cu oxidation state, and CuOx-30 with Cu average valence on the catalyst surface of 1.61 was more reactive for catalytic degradation of bisphenol A with peroxymonosulfate (PMS). Notably, CuOx-30, with the best electron-accepting ability, was easier to bonding with PMS to form the Cu-OOSO3- reactive complex, and the generated intermediate exhibited the strongest capacity to obtain electrons from contaminants. Moreover, the electron-transfer pathways were closely related to the average valence of Cu, and the contribution of the oxygen-atom-transfer pathway changed volcanic with increasing Cu valence. Meanwhile, the reaction predominantly involved the oxygen-atom-transfer pathway under acidic conditions (pH=3), while the contribution of the single-electron-transfer pathway raised with increasing pH values. Hence, this work was devoted to providing new insights into the CuOx-inducing PMS activation and vital supplementary to the properties of the Cu-OOSO3- intermediate.
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Affiliation(s)
- Lele Zhao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jiaming Zhang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Zhiping Zhang
- School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China
| | - Yujun Zhu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials, Heilongjiang University, Harbin 150080, China
| | - Yuan Zong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Chengying Bai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Tong Wei
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Yueming Ren
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
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6
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Zhang L, Li X, Chen L, Zhai C, Tao H. Honeycomb-like CuO@C for electroreduction of carbon dioxide to ethylene. J Colloid Interface Sci 2023; 640:783-790. [PMID: 36898182 DOI: 10.1016/j.jcis.2023.02.145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 02/16/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
The electrochemical CO2 reduction (ECR) of high-value multicarbon products is an urgent challenge for catalysis and energy resources. Herein, we reported a simple polymer thermal treatment strategy for preparing honeycomb-like CuO@C catalysts for ECR with remarkable C2H4 activity and selectivity. The honeycomb-like structure favored the enrichment of more CO2 molecules to improve the CO2-to-C2H4 conversion. Further experimental results indicate that the CuO loaded on amorphous carbon with a calcination temperature of 600 °C (CuO@C-600) has a Faradaic efficiency (FE) as high as 60.2% towards C2H4 formation, significantly outperforming pure CuO-600 (18.3%), CuO@C-500 (45.1%) and CuO@C-700 (41.4%), respectively. The interaction between the CuO nanoparticles and amorphous carbon improves the electron transfer and accelerates the ECR process. Furthermore, in situ Raman spectra demonstrated that CuO@C-600 can adsorb more adsorbed *CO intermediates, which enriches the CC coupling kinetics and promotes C2H4 production. This finding may offer a paradigm to design high-efficiency electrocatalysts, which can be beneficial to achieve the "double carbon goal."
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Affiliation(s)
- Lina Zhang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China; School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316022, China
| | - Xin Li
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316022, China
| | - Lihui Chen
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316022, China
| | - Chunyang Zhai
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
| | - Hengcong Tao
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China; School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316022, China; College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China.
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7
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Ahmed S, Sinha SK. Studies on nanomaterial-based p-type semiconductor gas sensors. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:24975-24986. [PMID: 35764738 DOI: 10.1007/s11356-022-21218-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
The development of various metal oxide semiconductor materials has resulted in better performance of the gas sensors in terms of selectivity, sensitivity, and response time. Different types of nanostructured materials, i.e., 2D materials, carbon nanotubes, and metal oxides, are used in the gas sensing applications. Generally, the metal oxide-based gas sensor operates at higher temperature to activate the adsorption process between the material surface and the target gas. The higher operating temperature of the gas sensor leads to more power consumption and produces defects in the grain boundary of metal oxide. To improve the selectivity and minimize the power consumption, nanoparticle-based p-type semiconductor materials are being developed. P-type metal oxide-based semiconductor materials have the ability to produce a hole accumulation layer which can chemisorb the oxygen molecules of higher concentration and these materials are not affected by humidity. The structure of p-type nanomaterial-based gas sensor depends upon the fabrication techniques which can affect the sensing properties of semiconductor materials. The hole accumulation layer is also known as conduction layer which is developed in the outer shell of p-type semiconductor material and the sensing mechanism is controlled by grain boundaries which is different from the n-type semiconductor material. This paper reviews the preparation methods, morphological analysis, and sensing mechanisms of nanomaterial-based p-type metal oxide-based gas sensors.
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Affiliation(s)
- Sarfraj Ahmed
- Department of Metallurgical and Materials Engineering, National Institute of Technology, Raipur, 492010, India.
| | - Sudip K Sinha
- Department of Metallurgical and Materials Engineering, National Institute of Technology, Raipur, 492010, India
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8
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Wu Y, Li J, Lv M, Zhang X, Gao R, Guo C, Cheng X, Zhou X, Xu Y, Gao S, Major Z, Huo L. Selective detection of trace carbon monoxide at room temperature based on CuO nanosheets exposed to (111) crystal facets. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130041. [PMID: 36166911 DOI: 10.1016/j.jhazmat.2022.130041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 09/18/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
In recent years, carbon monoxide (CO) intoxication incidents occur frequently, and the sensitive detection of CO is particularly significant. At present, most reported carbon monoxide (CO) sensors meet the disadvantage of high working temperature. It is always a challenge to realize the sensitive detection of carbon monoxide at room temperature. In this study, CuO nanosheets exposed more (111) active crystal facets and oxygen vacancy defects were synthesized by a simple and environmentally friendly one-step hydrothermal method. The sensor has good comprehensive gas sensing performance, compared with other sensors that can detect CO at room temperature. The response value to 100 ppm CO at room temperature is as high as 39.6. In addition, it also has excellent selectivity, low detection limit (100 ppb), good reproducibility, moisture resistance and long-term stability (60 days). This excellent gas sensing performance is attributed to the special structural characteristics of 2D materials and the synergistic effect of more active crystal facets exposed on the crystal surface and oxygen vacancy defects. Therefore, it is expected to become a promising sensitive material for rapid and accurate detection of trace CO gas under low energy consumption, reduce the risk of poisoning, and then effectively protect human life safety.
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Affiliation(s)
- Yuanyuan Wu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Ji Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Mingsong Lv
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Xianfa Zhang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Rui Gao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Chuanyu Guo
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Xiaoli Cheng
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Xin Zhou
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yingming Xu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China.
| | - Shan Gao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Zoltán Major
- Institute of Polymer Product Engineering, Johannes Kepler University Linz, Austria
| | - Lihua Huo
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China.
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9
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Dutta P, Gupta G. Environmental gas sensors based on electroactive hybrid organic-inorganic nanocomposites using nanostructured materials. Phys Chem Chem Phys 2022; 24:28680-28699. [PMID: 36416590 DOI: 10.1039/d2cp04247a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Advanced gas sensing devices are urgently demanded in the modern scientific world to control air pollution and protect human life. For this purpose, semiconducting electroactive materials can revolutionize the idea of conventional gas sensors. Chemi-resistive gas sensors based on electroactive hybrid organic-inorganic nanocomposites are incredibly promising gas sensing materials because they possess the advantages of excellent selectivity, high sensitivity, low response time, repeatability, high stability, cost-effectiveness, and simple fabrication techniques, and they can be operated at room temperature. This review emphasizes the recent developments of organic-inorganic hybrid nanocomposite-based electroactive gas sensors, including metal oxide nanocomposites, which are potential gas sensing materials due to the presence of numerous charge carriers. The review also focuses on nanostructured materials of different dimensions, such as semiconducting quantum dots, carbon dots, nanotubes, nanowires, and nanosheets, used for developing these gas sensing compounds and their significance and challenges. Some possible fabrication techniques for developing efficient gas sensors with different morphologies are discussed, with their probable sensing mechanism behind the detection of toxic vapours. Subsequently, a summary and possible outcome of this study, along with the various achievements and prospects in this field, are also discussed.
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Affiliation(s)
- Priyanka Dutta
- CSIR-National Physical Laboratory, Dr K. S. Krishnan Road, New Delhi 110012, India.
| | - Govind Gupta
- CSIR-National Physical Laboratory, Dr K. S. Krishnan Road, New Delhi 110012, India. .,Academy of Scientific and Innovative Research, CSIR-HRDC Campus, Ghaziabad, Uttar Pradesh-201002, India
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10
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Basivi P, Hamieh T, Pasupuleti KS, Pasupuleti VR, Rao VN, Kim MD, Kim CW. Surface Thermal Behavior and RT CO Gas Sensing Application of an Oligoacenaphthylene with p-Hydroxyphenylacetic Acid Composite. ACS OMEGA 2022; 7:36307-36317. [PMID: 36278056 PMCID: PMC9583342 DOI: 10.1021/acsomega.2c03897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
The current work describes room-temperature gas sensing performances using an oligoacenaphthylene (OAN)/p-hydroxyphenylacetic acid (p-HPA) composite. Based on inverse gas chromatography (IGC), the London dispersive surface energy γs d is calculated by using 14 representative models. Even when the γs d values of both OAN and the OAN/p-HPA composite are decreased as the temperature increases, the surface of OAN shows a higher value than that of the composite. The Gibbs surface free energy values of both are decreased with an increasing temperature. In our results, higher Lewis basic characters are observed in OAN and the OAN/p-HPA composite and the OAN/p-HPA surface exhibits a higher basicity compared to OAN. Because of the presence of phenolic groups in the OAN/p-HPA composite, the more important basic character drives a significant CO gas sensing ability with a sensitivity of 8.96% and good cycling stability as compared to the pristine counterparts. It is expected that the current study sheds light on a new pathway to exploring polymer composite materials for futuristic diverse and multiple applications, including IGC and gas sensor applications.
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Affiliation(s)
- Praveen
Kumar Basivi
- Pukyong
National University Industry-University Cooperation Foundation, Pukyong National University, Busan48513, Republic of Korea
| | - Tayssir Hamieh
- Faculty
of Science and Engineering, Maastricht University, P.O. Box 616, 6200 MDMaastricht, Netherlands
- Laboratory
of Materials, Catalysis, Environment and Analytical Methods Laboratory
(MCEMA), Faculty of Sciences, Lebanese University, 1533Hadath, Lebanon
| | | | - Visweswara Rao Pasupuleti
- Center
for International Collaboration and Research, REVA University, Rukmini
Knowledge Park, Kattigenahalli, Yelahanka, Bangalore, Karnataka560064, India
| | | | - Moon-Deock Kim
- Department
of Physics, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon34134, Republic of Korea
- Institute
of Quantum Systems (IQS), Chungnam National
University, 99 Daehak-ro, Yuseong-gu, Daejeon34134, Republic of Korea
| | - Chang Woo Kim
- Department
of Nanotechnology Engineering, College of Engineering, Pukyong National University, Busan48513, Republic of Korea
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11
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Chu H, Sun X, Zha X, Zhang Y, Wang Y. Synthesis of core-shell structured metal oxide@covalent organic framework composites as a novel electrochemical platform for dopamine sensing. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129238] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Synthesis of CuO nanoparticles stabilized with gelatin for potential use in food packaging applications. Sci Rep 2022; 12:12843. [PMID: 35902676 PMCID: PMC9334594 DOI: 10.1038/s41598-022-16878-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 07/18/2022] [Indexed: 11/30/2022] Open
Abstract
In the present study, a method for the synthesis of gelatin-stabilized copper oxide nanoparticles was developed. Synthesis was carried out by direct chemical precipitation. Copper sulfate, chloride, and acetate were used as precursors for the copper oxide synthesis. Gelatin was used as a stabilizer. It was found that the formation of monophase copper oxide II only occurred when copper acetate was used as a precursor. Our results showed that particles of the smallest diameter are formed in an aqueous medium (18 ± 6 nm), and those of th largest diameter—in an isobutanol medium (370 ± 131 nm). According to the photon correlation spectroscopy data, copper oxide nanoparticles synthesized in an aqueous medium were highly stable and had a monomodal size distribution with an average hydrodynamic radius of 61 nm. The study of the pH effect on the colloidal stability of copper oxide nanoparticles showed that the sample was stable in the pH range of 6.8 to 11.98. A possible mechanism for the pH influence on the stability of copper oxide nanoparticles is described. The effect of the ionic strength of the solution on the stability of the CuO nanoparticles sol was also studied, and the results showed that Ca2+ ions had the greatest effect on the sample stability. IR spectroscopy showed that the interaction of CuO nanoparticles with gelatin occurred through the hydroxyl group. It was found that CuO nanoparticles stabilized with gelatin have a fungicidal activity at concentration equivalent 2.5 · 10−3 mol/L and as a material for food nanopackaging can provide an increase in the shelf life of products on the example of strawberries and tomatoes. We investigated the possibility of using methylcellulose films modified with CuO nanoparticles for packaging and storage of hard cheese “Holland”. The distribution of CuO nanoparticles in the methylcellulose film was uniform. We found that methylcellulose films modified with CuO nanoparticles inhibited the growth and development of QMAFAM, coliforms, yeast and mold in experimental cheese sa mples. Our research has shown that during the cheese storage in thermostat at 35 ± 1 °C for 7 days, CuO nanoparticles migrated to the product from the film. Nevertheless, it is worth noting that the maximum change in the concentration of copper in the experimental samples was only 0.12 µg/mg, which is not a toxic concentration. In general, the small value of migration of CuO nanoparticles confirms the high stability of the developed preparation. Our results indicated that the CuO nanoparticles stabilized with gelatin have a high potential for use in food packaging – both as an independent nanofilm and as part of other packaging materials.
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13
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Norizan MN, Abdullah N, Halim NA, Demon SZN, Mohamad IS. Heterojunctions of rGO/Metal Oxide Nanocomposites as Promising Gas-Sensing Materials—A Review. NANOMATERIALS 2022; 12:nano12132278. [PMID: 35808113 PMCID: PMC9268638 DOI: 10.3390/nano12132278] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/21/2022] [Accepted: 06/25/2022] [Indexed: 01/25/2023]
Abstract
Monitoring environmental hazards and pollution control is vital for the detection of harmful toxic gases from industrial activities and natural processes in the environment, such as nitrogen dioxide (NO2), ammonia (NH3), hydrogen (H2), hydrogen sulfide (H2S), carbon dioxide (CO2), and sulfur dioxide (SO2). This is to ensure the preservation of public health and promote workplace safety. Graphene and its derivatives, especially reduced graphene oxide (rGO), have been designated as ideal materials in gas-sensing devices as their electronic properties highly influence the potential to adsorb specified toxic gas molecules. Despite its exceptional sensitivity at low gas concentrations, the sensor selectivity of pristine graphene is relatively weak, which limits its utility in many practical gas sensor applications. In view of this, the hybridization technique through heterojunction configurations of rGO with metal oxides has been explored, which showed promising improvement and a synergistic effect on the gas-sensing capacity, particularly at room temperature sensitivity and selectivity, even at low concentrations of the target gas. The unique features of graphene as a preferential gas sensor material are first highlighted, followed by a brief discussion on the basic working mechanism, fabrication, and performance of hybridized rGO/metal oxide-based gas sensors for various toxic gases, including NO2, NH3, H2, H2S, CO2, and SO2. The challenges and prospects of the graphene/metal oxide-based based gas sensors are presented at the end of the review.
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Affiliation(s)
- Mohd Nurazzi Norizan
- Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, Kuala Lumpur 57000, Malaysia; (M.N.N.); (N.A.H.); (S.Z.N.D.)
| | - Norli Abdullah
- Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, Kuala Lumpur 57000, Malaysia; (M.N.N.); (N.A.H.); (S.Z.N.D.)
- Correspondence:
| | - Norhana Abdul Halim
- Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, Kuala Lumpur 57000, Malaysia; (M.N.N.); (N.A.H.); (S.Z.N.D.)
| | - Siti Zulaikha Ngah Demon
- Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, Kuala Lumpur 57000, Malaysia; (M.N.N.); (N.A.H.); (S.Z.N.D.)
| | - Imran Syakir Mohamad
- Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, Durian Tunggal, Melaka 76100, Malaysia;
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14
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Castonguay AC, Yi N, Li B, Zhao J, Li H, Gao Y, Nova NN, Tiwari N, Zarzar LD, Cheng H. Direct Laser Writing of Microscale Metal Oxide Gas Sensors from Liquid Precursors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:28163-28173. [PMID: 35686829 DOI: 10.1021/acsami.2c03561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Fabrication and processing approaches that facilitate the ease of patterning and the integration of nanomaterials into sensor platforms are of significant utility and interest. In this work, we report the use of laser-induced thermal voxels (LITV) to fabricate microscale, planar gas sensors directly from solutions of metal salts. LITV offers a facile platform to directly integrate nanocrystalline metal oxide and mixed metal oxide materials onto heating platforms, with access to a wide variety of compositions and morphologies including many transition metals and noble metals. The unique patterning and synthesis flexibility of LITV enable the fabrication of chemically and spatially tailorable microscale sensing devices. We investigate the sensing performance of a representative set of n-type and p-type LITV-deposited metal oxides and their mixtures (CuO, NiO, CuO/ZnO, and Fe2O3/Pt) in response to reducing and oxidizing gases (H2S, NO2, NH3, ethanol, and acetone). These materials show a broad range of sensitivities and notably a strong response of NiO to ethanol and acetone (407 and 301% R/R0 at 250 °C, respectively), along with a 5- to 20-fold sensitivity enhancement for CuO/ZnO to all gases measured over pure CuO, highlighting the opportunities of LITV for the creation of mixed-material microscale sensors.
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Affiliation(s)
- Alexander C Castonguay
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
| | - Ning Yi
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
| | - Bowen Li
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
| | - Jiang Zhao
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
| | - Han Li
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen, Fujian 361005, China
- Southeast Institute of China Unicom, Fuzhou, Fujian 350000, China
| | - Yuyan Gao
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
| | - Nabila N Nova
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
| | - Naveen Tiwari
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
| | - Lauren D Zarzar
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
| | - Huanyu Cheng
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802 United States
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15
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Praxedes F, Moreno H, Simões A, Teixeira V, Nunes R, Amoresi R, Ramirez M. Interface matters: Design of an efficient CaCu3Ti4O12-rGO photocatalyst. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Yoon Y, Truong PL, Lee D, Ko SH. Metal-Oxide Nanomaterials Synthesis and Applications in Flexible and Wearable Sensors. ACS NANOSCIENCE AU 2022; 2:64-92. [PMID: 37101661 PMCID: PMC10114907 DOI: 10.1021/acsnanoscienceau.1c00029] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Metal-oxide nanomaterials (MONs) have gained considerable interest in the construction of flexible/wearable sensors due to their tunable band gap, low cost, large specific area, and ease of manufacturing. Furthermore, MONs are in high demand for applications, such as gas leakage alarms, environmental protection, health tracking, and smart devices integrated with another system. In this Review, we introduce a comprehensive investigation of factors to boost the sensitivity of MON-based sensors in environmental indicators and health monitoring. Finally, the challenges and perspectives of MON-based flexible/wearable sensors are considered.
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Affiliation(s)
- Yeosang Yoon
- Applied
Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu,
Seoul 08826, Korea
| | - Phuoc Loc Truong
- Laser
and Thermal Engineering Lab, Department of Mechanical Engineering, Gachon University, Seongnam 13120, Korea
| | - Daeho Lee
- Laser
and Thermal Engineering Lab, Department of Mechanical Engineering, Gachon University, Seongnam 13120, Korea
| | - Seung Hwan Ko
- Applied
Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu,
Seoul 08826, Korea
- Institute
of Advanced Machinery and Design (SNU-IAMD), Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
- Institute
of Engineering Research, Seoul National
University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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17
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Li T, Yin W, Gao S, Sun Y, Xu P, Wu S, Kong H, Yang G, Wei G. The Combination of Two-Dimensional Nanomaterials with Metal Oxide Nanoparticles for Gas Sensors: A Review. NANOMATERIALS 2022; 12:nano12060982. [PMID: 35335794 PMCID: PMC8951490 DOI: 10.3390/nano12060982] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 02/07/2023]
Abstract
Metal oxide nanoparticles have been widely utilized for the fabrication of functional gas sensors to determine various flammable, explosive, toxic, and harmful gases due to their advantages of low cost, fast response, and high sensitivity. However, metal oxide-based gas sensors reveal the shortcomings of high operating temperature, high power requirement, and low selectivity, which limited their rapid development in the fabrication of high-performance gas sensors. The combination of metal oxides with two-dimensional (2D) nanomaterials to construct a heterostructure can hybridize the advantages of each other and overcome their respective shortcomings, thereby improving the sensing performance of the fabricated gas sensors. In this review, we present recent advances in the fabrication of metal oxide-, 2D nanomaterials-, as well as 2D material/metal oxide composite-based gas sensors with highly sensitive and selective functions. To achieve this aim, we firstly introduce the working principles of various gas sensors, and then discuss the factors that could affect the sensitivity of gas sensors. After that, a lot of cases on the fabrication of gas sensors by using metal oxides, 2D materials, and 2D material/metal oxide composites are demonstrated. Finally, we summarize the current development and discuss potential research directions in this promising topic. We believe in this work is helpful for the readers in multidiscipline research fields like materials science, nanotechnology, chemical engineering, environmental science, and other related aspects.
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Affiliation(s)
- Tao Li
- College of Textile & Clothing, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (T.L.); (W.Y.); (Y.S.); (S.W.)
| | - Wen Yin
- College of Textile & Clothing, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (T.L.); (W.Y.); (Y.S.); (S.W.)
| | - Shouwu Gao
- State Key Laboratory, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (S.G.); (P.X.)
| | - Yaning Sun
- College of Textile & Clothing, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (T.L.); (W.Y.); (Y.S.); (S.W.)
| | - Peilong Xu
- State Key Laboratory, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (S.G.); (P.X.)
| | - Shaohua Wu
- College of Textile & Clothing, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (T.L.); (W.Y.); (Y.S.); (S.W.)
| | - Hao Kong
- College of Chemistry and Chemical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (H.K.); (G.Y.)
| | - Guozheng Yang
- College of Chemistry and Chemical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (H.K.); (G.Y.)
| | - Gang Wei
- College of Chemistry and Chemical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (H.K.); (G.Y.)
- Correspondence: ; Tel.: +86-1506-6242-101
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18
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Szary MJ, Florjan DM, Bąbelek JA. Selective Detection of Carbon Monoxide on P-Block Doped Monolayers of MoTe 2. ACS Sens 2022; 7:272-285. [PMID: 35044171 PMCID: PMC8805155 DOI: 10.1021/acssensors.1c02246] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 01/04/2022] [Indexed: 12/29/2022]
Abstract
CO and CO2 are among the most commonly monitored gases. However, the currently available semiconductor sensors require heating to ∼400 °C in order to operate effectively. This increases the power demand and shortens their lifespan. Consequently, new material prospects are being investigated. The adoption of novel two-dimensional layered materials is one of the pursued solutions. MoS2 and MoTe2 sheets have already been shown sensitive to NO2 and NH3 even at room temperature. However, their response to other compounds is limited. Hence, this work investigates, by employing density functional theory (DFT) calculations, the doping of Al, Si, P, S, and Cl atoms into the Te vacancy of MoTe2, and its impact on the sensing characteristics for CO and CO2. The computations predict that P doping significantly enhances the molecule-sheet charge transfer (up to +436%) while having only a little effect on the adsorption energy (molecular dynamics show that the molecule can effectively diffuse at 300 K). On the other hand, the doping has a limited impact on the adsorption of CO2. The relative (CO/CO2) response of P-doped MoTe2 is 5.6 compared to the 1.5 predicted for the pristine sheet. Thus, the doping should allow for more selective detection of CO in CO/CO2 mixtures.
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Affiliation(s)
- Maciej J. Szary
- Institute of Physics, Poznan University of Technology, ul. Piotrowo 3, 61-138 Poznan, Poland
| | - Dominik M. Florjan
- Institute of Physics, Poznan University of Technology, ul. Piotrowo 3, 61-138 Poznan, Poland
| | - Jakub A. Bąbelek
- Institute of Physics, Poznan University of Technology, ul. Piotrowo 3, 61-138 Poznan, Poland
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19
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Fu D, Ding Y, Guo R, Zhang J, Wang H, Niu B, Yan H. Polylactic acid/polyvinyl alcohol-quaternary ammonium chitosan double-layer films doped with novel antimicrobial agent CuO@ZIF-8 NPs for fruit preservation. Int J Biol Macromol 2022; 195:538-546. [PMID: 34914914 DOI: 10.1016/j.ijbiomac.2021.12.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 11/30/2021] [Accepted: 12/04/2021] [Indexed: 11/30/2022]
Abstract
ZIF-8, a subclass of metal organic frameworks (MOFs), was employed as the CuO carriers because of its high surface areas and good dispersibility. A novel antibacterial agent CuO@ZIF-8 was synthesized by environmentally-friendly direct calcination strategy, and introduced into the composite double-layer films for packing materials. The double-layer films were prepared via solution casting method with polylactic acid (PLA) and polyvinyl alcohol (PVA)-quaternary ammonium chitosan as the matrix of outer layer and inner layer, respectively; and CuO@ZIF-8 nanoparticles were introduced into the PVA-quaternary ammonium chitosan layer. The double-layer films exhibited superior antibacterial activity resulted from the uniform dispersion of CuO by ZIF-8 carriers. The elongation at break was enhanced and up to 17.13%, about 2.4-fold that of PLA films. Meanwhile, the films provided low water vapor permeability and strong UV-barrier ability which were attributed to the lay-by-layer casting, CuO@ZIF-8 doping and TiO2 addition. Cherry tomato preservation experiment revealed that the composite films retarded the growth of harmful microorganisms on the fruit surface. MTT assay confirmed the cytocompatibility of the films. The easily fabricated double-layer films presented potential possibility in the field of biodegradable food packaging.
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Affiliation(s)
- Dongsheng Fu
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China
| | - Yuanzheng Ding
- Department of Clinical Medicine, Fenyang college of Shanxi Medical University, Fenyang 032200, China
| | - Ruijie Guo
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China.
| | - Jie Zhang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China
| | - Huifang Wang
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China
| | - Baolong Niu
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China
| | - Hong Yan
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China.
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20
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Navale S, Mirzaei A, Majhi SM, Kim HW, Kim SS. State-of-the-Art Research on Chemiresistive Gas Sensors in Korea: Emphasis on the Achievements of the Research Labs of Professors Hyoun Woo Kim and Sang Sub Kim. SENSORS (BASEL, SWITZERLAND) 2021; 22:61. [PMID: 35009604 PMCID: PMC8747108 DOI: 10.3390/s22010061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/06/2021] [Accepted: 12/17/2021] [Indexed: 12/19/2022]
Abstract
This review presents the results of cutting-edge research on chemiresistive gas sensors in Korea with a focus on the research activities of the laboratories of Professors Sang Sub Kim and Hyoun Woo Kim. The advances in the synthesis techniques and various strategies to enhance the gas-sensing performances of metal-oxide-, sulfide-, and polymer-based nanomaterials are described. In particular, the gas-sensing characteristics of different types of sensors reported in recent years, including core-shell, self-heated, irradiated, flexible, Si-based, glass, and metal-organic framework sensors, have been reviewed. The most crucial achievements include the optimization of shell thickness in core-shell gas sensors, decrease in applied voltage in self-heated gas sensors to less than 5 V, optimization of irradiation dose to achieve the highest response to gases, and the design of selective and highly flexible gas sensors-based WS2 nanosheets. The underlying sensing mechanisms are discussed in detail. In summary, this review provides an overview of the chemiresistive gas-sensing research activities led by the corresponding authors of this manuscript.
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Affiliation(s)
- Sachin Navale
- Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea; (S.N.); (S.M.M.)
- The Research Institute of Industrial Science, Hanyang University, Seoul 04763, Korea
- Department of Materials Science and Engineering, Inha University, Incheon 22212, Korea
| | - Ali Mirzaei
- Department of Materials Science and Engineering, Shiraz University of Technology, Shiraz 715557-13876, Iran;
| | - Sanjit Manohar Majhi
- Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea; (S.N.); (S.M.M.)
- The Research Institute of Industrial Science, Hanyang University, Seoul 04763, Korea
| | - Hyoun Woo Kim
- Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea; (S.N.); (S.M.M.)
- The Research Institute of Industrial Science, Hanyang University, Seoul 04763, Korea
| | - Sang Sub Kim
- Department of Materials Science and Engineering, Inha University, Incheon 22212, Korea
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21
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Zhang W, Wang X, Fan Z, Li J, Liu G, Lv X, Li B, Zhou J, Xie E, Zhang Z. Switching Effect of p-CuO Nanotube/n-In 2S 3 Nanosheet Heterostructures for High-Performance Room-Temperature H 2S Sensing. ACS APPLIED MATERIALS & INTERFACES 2021; 13:52938-52949. [PMID: 34704433 DOI: 10.1021/acsami.1c15564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
High operating temperature and low response restrict the application of H2S sensors. Due to the strong chemical affinity of CuO to H2S and the large band gap and high stability of β-In2S3, CuO nanotube/In2S3 nanosheet p/n heterostructures have been delicately designed for binder-free gas sensors by a facile method consisting of sputtering, chemical etching, and annealing. A switching effect of H2S concentration on the response of CuO/In2S3 gas sensors has been observed. When exposed to low-concentration H2S (1-10 ppm), the response is less than 0.10 and dominated by the surface-type adsorption-desorption process between CuO and H2S. When exposed to high-concentration H2S, the sensor exhibits a superior response of 3511 toward 50 ppm H2S, considerable selectivity, and long-term stability at room temperature. This dramatically enhanced response can be explained by the transformed junction from the CuO/In2S3 heterojunction to the CuS/In2S3 Schottky junction. These results suggest that the binder-free ceramic tube-type CuO/In2S3 gas sensor with considerable performance will have promising potential for H2S gas detection. Moreover, this method provides an effective strategy to fabricate other binder-free gas sensors.
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Affiliation(s)
- Wenjian Zhang
- Key Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Xukun Wang
- Key Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Ziye Fan
- Key Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Juan Li
- Department of Gastroenterology, Gansu Provincial Hospital, Lanzhou 730000, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou 730000, China
| | - Guo Liu
- Key Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Xueliang Lv
- Key Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Bingsheng Li
- State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jinyuan Zhou
- Key Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Erqing Xie
- Key Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Zhenxing Zhang
- Key Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
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22
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AL-Refai HH, Ganash AA, Hussein MA. Composite Nanoarchitectonics with Polythiophene, MWCNTs-G, CuO and Chitosan as a Voltammetric Sensor for Detection of Cd(II) Ions. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02125-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Khan ZA, Hong PJS, Lee CH, Hong Y. Recent Advances in Electrochemical and Optical Sensors for Detecting Tryptophan and Melatonin. Int J Nanomedicine 2021; 16:6861-6888. [PMID: 34675512 PMCID: PMC8521600 DOI: 10.2147/ijn.s325099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/31/2021] [Indexed: 12/11/2022] Open
Abstract
Tryptophan and melatonin are pleiotropic molecules, each capable of influencing several cellular, biochemical, and physiological responses. Therefore, sensitive detection of tryptophan and melatonin in pharmaceutical and human samples is crucial for human well-being. Mass spectrometry, high-performance liquid chromatography, and capillary electrophoresis are common methods for both tryptophan and melatonin analysis; however, these methods require copious amounts of time, money, and manpower. Novel electrochemical and optical detection tools have been subjects of intensive research due to their ability to offer a better signal-to-noise ratio, high specificity, ultra-sensitivity, and wide dynamic range. Recently, researchers have designed sensitive and selective electrochemical and optical platforms by using new surface modifications, microfabrication techniques, and the decoration of diverse nanomaterials with unique properties for the detection of tryptophan and melatonin. However, there is a scarcity of review articles addressing the recent developments in the electrochemical and optical detection of tryptophan and melatonin. Here, we provide a critical and objective review of high-sensitivity tryptophan and melatonin sensors that have been developed over the past six years (2015 onwards). We review the principles, performance, and limitations of these sensors. We also address critical aspects of sensitivity and selectivity, limit and range of detection, fabrication process and time, durability, and biocompatibility. Finally, we discuss challenges related to tryptophan and melatonin detection and present future outlooks.
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Affiliation(s)
- Zeeshan Ahmad Khan
- Department of Physical Therapy, College of Healthcare Medical Science & Engineering, Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Biohealth Products Research Center (BPRC), Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Ubiquitous Healthcare & Anti-Aging Research Center (u-HARC), Inje University, Gimhae, Gyeong-nam, 50834, Korea
| | - Paul Jung-Soo Hong
- Department of Chemistry, Newton South High School, Newton, MA, 02459, USA
| | - Christina Hayoung Lee
- Department of Biology, College of Arts and Sciences, Vanderbilt University, Nashville, TN, 37212, USA
| | - Yonggeun Hong
- Department of Physical Therapy, College of Healthcare Medical Science & Engineering, Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Biohealth Products Research Center (BPRC), Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Ubiquitous Healthcare & Anti-Aging Research Center (u-HARC), Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Department of Rehabilitation Science, Graduate School of Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Department of Medicine, Division of Hematology/Oncology, Harvard Medical School-Beth Israel Deaconess Medical Center, Boston, MA, 02215, USA
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Nami-Ana SF, Nasresfahani S, Tashkhourian J, Shamsipur M, Zargarpour Z, Sheikhi MH. Nanofibers of Polyaniline and Cu(II)-l-Aspartic Acid for a Room-Temperature Carbon Monoxide Gas Sensor. ACS APPLIED MATERIALS & INTERFACES 2021; 13:39791-39805. [PMID: 34397209 DOI: 10.1021/acsami.1c07116] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In the present study, the carbon monoxide (CO) sensing property of Cu(II)-l-aspartic acid nanofibers/polyaniline (PANI) nanofibers composite was investigated at room temperature. The nanofiber composite was formed through the ultrasound mixing of emeraldine salt PANI nanofibers and Cu(II)-l-aspartic acid nanofibers, which were synthesized by using a polymerization process and simple self-assembly method, respectively. The nanofibers composite demonstrated a branched structure in which the Cu(II)-l-aspartic acid nanofiber framework is similar to the trunk of a tree and the polyaniline nanofibers is like its branches. It seems that this special structure and one-dimension/one-dimension interface are suitable for gas adsorption and sensing. The performance of the prepared sensor toward CO gas was investigated at room temperature in a wide concentration range (200-8000 ppm). The experimental results indicate that the incorporation of amino acid-based copper metal-biomolecule framework nanofibers to PANI nanofibers enhances the response value (12.41% to 4000 ppm), yielding good selectivity and acceptable response and recovery characteristics (220 s/240 s) at room temperature. The detection limit of Cu(II)-l-aspartic acid nanofibers/PANI nanofibers sensor for carbon monoxide is obtained at 120 ppm.
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Affiliation(s)
- S F Nami-Ana
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71456, Iran
| | - Sh Nasresfahani
- Department of Electrical and Computer Engineering, Golpayegan College of Engineering, Isfahan University of Technology, Golpayegan 87717-67498, Iran
| | - J Tashkhourian
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71456, Iran
| | - M Shamsipur
- Department of Chemistry, Razi University, Kermanshah 67149, Iran
| | - Z Zargarpour
- School of Electrical and Computer Engineering, Shiraz University, Shiraz 71456, Iran
| | - M H Sheikhi
- School of Electrical and Computer Engineering, Shiraz University, Shiraz 71456, Iran
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Zhou Q, Zhang Y, Zeng T, Wan Q, Yang N. Morphology-dependent sensing performance of CuO nanomaterials. Anal Chim Acta 2021; 1171:338663. [PMID: 34112435 DOI: 10.1016/j.aca.2021.338663] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 05/02/2021] [Accepted: 05/18/2021] [Indexed: 10/21/2022]
Abstract
The morphology of nanomaterials affects their properties and further their applications. Herein, CuO nanomaterials with different morphologies are synthesized, including CuO nanostrips, nanowires and microspheres. After their characterization by means of electron microscopy and X-ray powder diffraction, these CuO nanomaterials are further mixed with graphene nanoplates (GNP) to explore their performance towards electrochemical detection of glucose and tetrabromobisphenol A (TBBPA). Among three composites, the composite of CuO nanostrips and GNP exhibits the largest active surface area, the lowest charge transfer resistance, and the highest accumulation efficiency toward TBBPA. Meanwhile, this composite based non-enzymatic sensor shows superior performance for the glucose monitoring. Since these sensors for the monitoring of both glucose and TBBPA possesses long-term stability, high reproducibility, and wide linear ranges and low detection limits, this work provides a strategy to tune the sensing performance of nanomaterials by means of tailoring the morphologies of nanomaterials.
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Affiliation(s)
- Qi Zhou
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor &Green Chemical Technology,Wuhan Institute of Technology, Wuhan, 430073, China
| | - Yuanyuan Zhang
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor &Green Chemical Technology,Wuhan Institute of Technology, Wuhan, 430073, China
| | - Ting Zeng
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor &Green Chemical Technology,Wuhan Institute of Technology, Wuhan, 430073, China.
| | - Qijin Wan
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor &Green Chemical Technology,Wuhan Institute of Technology, Wuhan, 430073, China
| | - Nianjun Yang
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
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Gas Sensors Based on Localized Surface Plasmon Resonances: Synthesis of Oxide Films with Embedded Metal Nanoparticles, Theory and Simulation, and Sensitivity Enhancement Strategies. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11125388] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This work presents a comprehensive review on gas sensors based on localized surface plasmon resonance (LSPR) phenomenon, including the theory of LSPR, the synthesis of nanoparticle-embedded oxide thin films, and strategies to enhance the sensitivity of these optical sensors, supported by simulations of the electromagnetic properties. The LSPR phenomenon is known to be responsible for the unique colour effects observed in the ancient Roman Lycurgus Cup and at the windows of the medieval cathedrals. In both cases, the optical effects result from the interaction of the visible light (scattering and absorption) with the conduction band electrons of noble metal nanoparticles (gold, silver, and gold–silver alloys). These nanoparticles are dispersed in a dielectric matrix with a relatively high refractive index in order to push the resonance to the visible spectral range. At the same time, they have to be located at the surface to make LSPR sensitive to changes in the local dielectric environment, the property that is very attractive for sensing applications. Hence, an overview of gas sensors is presented, including electronic-nose systems, followed by a description of the surface plasmons that arise in noble metal thin films and nanoparticles. Afterwards, metal oxides are explored as robust and sensitive materials to host nanoparticles, followed by preparation methods of nanocomposite plasmonic thin films with sustainable techniques. Finally, several optical properties simulation methods are described, and the optical LSPR sensitivity of gold nanoparticles with different shapes, sensing volumes, and surroundings is calculated using the discrete dipole approximation method.
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Dai T, Deng Z, Fang X, Lu H, He Y, Chang J, Wang S, Zhu N, Li L, Meng G. In Situ Assembly of Ordered Hierarchical CuO Microhemisphere Nanowire Arrays for High-Performance Bifunctional Sensing Applications. SMALL METHODS 2021; 5:e2100202. [PMID: 34927905 DOI: 10.1002/smtd.202100202] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/06/2021] [Indexed: 05/18/2023]
Abstract
Seeking a facile approach to directly assemble bridged metal oxide nanowires on substrates with predefined electrodes without the need for complex postsynthesis alignment and/or device procedures will bridge the gap between fundamental research and practical applications for diverse biochemical sensing, electronic, optoelectronic, and energy storage devices. Herein, regularly bridged CuO microhemisphere nanowire arrays (RB-MNAs) are rationally designed on indium tin oxide electrodes via thermal oxidation of ordered Cu microhemisphere arrays obtained by solid-state dewetting of patterned Ag/Cu/Ag films. Both the position and spacing of CuO microhemisphere nanowires can be well controlled by as-used shadow mask and the thickness of Cu film, which allows homogeneous manipulation of the bridging of adjacent nanowires grown from neighboring CuO hemispheres, and thus benefits highly sensitive trimethylamine (TMA) sensors and broad band (UV-visible to infrared) photodetectors. The electrical response of 3.62 toward 100 ppm TMA is comparable to that of state-of-the-art CuO-based sensors. Together with the feasibility of in situ assembly of RB-MNAs device arrays via common lithographic technologies, this work promises commercial device applications of CuO nanowires.
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Affiliation(s)
- Tiantian Dai
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, and Key Lab of Photovoltaic and Energy Conservation Materials, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- University of Science and Technology of China, Hefei, 230026, China
- Advanced Laser Technology Laboratory of Anhui Province, Hefei, 230037, China
| | - Zanhong Deng
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, and Key Lab of Photovoltaic and Energy Conservation Materials, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Hefei, 230037, China
| | - Xiaodong Fang
- Sino-German College of Intelligent Manufacturing, Shenzhen Technology University, Shenzhen, 518118, China
| | - Huadong Lu
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, Taiyuan, 030006, China
| | - Yong He
- College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, China
| | - Junqing Chang
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, and Key Lab of Photovoltaic and Energy Conservation Materials, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Shimao Wang
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, and Key Lab of Photovoltaic and Energy Conservation Materials, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Hefei, 230037, China
| | - Nengwei Zhu
- Sino-German College of Intelligent Manufacturing, Shenzhen Technology University, Shenzhen, 518118, China
| | - Liang Li
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, China
| | - Gang Meng
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, and Key Lab of Photovoltaic and Energy Conservation Materials, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Hefei, 230037, China
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Transition metal ions doped Bi12SiO20 as novel catalysts for the decomposition of hydrogen peroxide (H2O2). J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.03.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Abstract
Metal oxide semiconductors have found widespread applications in chemical sensors based on electrical transduction principles, in particular for the detection of a large variety of gaseous analytes, including environmental pollutants and hazardous gases. This review recapitulates the progress in copper oxide nanomaterial-based devices, while discussing decisive factors influencing gas sensing properties and performance. Literature reports on the highly sensitive detection of several target molecules, including volatile organic compounds, hydrogen sulfide, carbon monoxide, carbon dioxide, hydrogen and nitrogen oxide from parts-per-million down to parts-per-billion concentrations are compared. Physico-chemical mechanisms for sensing and transduction are summarized and prospects for future developments are outlined.
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Sharma S, Kumar N, Mari B, Chauhan NS, Mittal A, Maken S, Kumari K. Solution combustion synthesized TiO2/Bi2O3/CuO nano-composites and their photocatalytic activity using visible LEDs assisted photoreactor. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2020.108418] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Kim S, Brady J, Al-Badani F, Yu S, Hart J, Jung S, Tran TT, Myung NV. Nanoengineering Approaches Toward Artificial Nose. Front Chem 2021; 9:629329. [PMID: 33681147 PMCID: PMC7935515 DOI: 10.3389/fchem.2021.629329] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 01/05/2021] [Indexed: 12/16/2022] Open
Abstract
Significant scientific efforts have been made to mimic and potentially supersede the mammalian nose using artificial noses based on arrays of individual cross-sensitive gas sensors over the past couple decades. To this end, thousands of research articles have been published regarding the design of gas sensor arrays to function as artificial noses. Nanoengineered materials possessing high surface area for enhanced reaction kinetics and uniquely tunable optical, electronic, and optoelectronic properties have been extensively used as gas sensing materials in single gas sensors and sensor arrays. Therefore, nanoengineered materials address some of the shortcomings in sensitivity and selectivity inherent in microscale and macroscale materials for chemical sensors. In this article, the fundamental gas sensing mechanisms are briefly reviewed for each material class and sensing modality (electrical, optical, optoelectronic), followed by a survey and review of the various strategies for engineering or functionalizing these nanomaterials to improve their gas sensing selectivity, sensitivity and other measures of gas sensing performance. Specifically, one major focus of this review is on nanoscale materials and nanoengineering approaches for semiconducting metal oxides, transition metal dichalcogenides, carbonaceous nanomaterials, conducting polymers, and others as used in single gas sensors or sensor arrays for electrical sensing modality. Additionally, this review discusses the various nano-enabled techniques and materials of optical gas detection modality, including photonic crystals, surface plasmonic sensing, and nanoscale waveguides. Strategies for improving or tuning the sensitivity and selectivity of materials toward different gases are given priority due to the importance of having cross-sensitivity and selectivity toward various analytes in designing an effective artificial nose. Furthermore, optoelectrical sensing, which has to date not served as a common sensing modality, is also reviewed to highlight potential research directions. We close with some perspective on the future development of artificial noses which utilize optical and electrical sensing modalities, with additional focus on the less researched optoelectronic sensing modality.
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Affiliation(s)
- Sanggon Kim
- Department of Chemical and Environmental Engineering, University of California-Riverside, Riverside, CA, United States
| | - Jacob Brady
- Department of Chemical and Environmental Engineering, University of California-Riverside, Riverside, CA, United States
| | - Faraj Al-Badani
- Department of Chemical and Environmental Engineering, University of California-Riverside, Riverside, CA, United States
| | - Sooyoun Yu
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, United States
| | - Joseph Hart
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, United States
| | - Sungyong Jung
- Department of Electrical Engineering, University of Texas at Arlington, Arlington, TX, United States
| | - Thien-Toan Tran
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, United States
| | - Nosang V. Myung
- Department of Chemical and Environmental Engineering, University of California-Riverside, Riverside, CA, United States
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, United States
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Zhang X, Zhao X, Chen K, Fan Y, Wei S, Zhang W, Han D, Niu L. Palladium-modified cuprous(i) oxide with {100} facets for photocatalytic CO 2 reduction. NANOSCALE 2021; 13:2883-2890. [PMID: 33533389 DOI: 10.1039/d0nr07703h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Using metal as a photohole capturer can promote the photoelectron of p-type copper(i) oxide (Cu2O) substrate for efficient carbon dioxide reduction. However, palladium-decorated Cu2O (Cu2O-Pd) is seldom reported due to their mismatching band arrangement. Herein, we have successfully established a matched band alignment between Pd nanoparticles and Cu2O with exposed {100} facets (100Cu2O). The high work function of 100Cu2O originating from T1u symmetry vibration facilitates the photohole transferring to Pd nanoparticles, which leads to a three-fold increase in the photocatalytic generation of carbon monoxide (100Cu2O-0.1Pd, 0.13 μmol g-1 h-1) than that with pristine 100Cu2O (0.04 μmol g-1 h-1). Besides, the incorporation of Pd can relieve the photocorrosion of 100Cu2O, thus promoting its photocatalytic stability. As a contrast, 111Cu2O (Cu2O exposed to {111} facets) with low-work function was also synthesized and no charge migration was observed between 111Cu2O and Pd species, which verified the important role of the crystal surface regulation. All experimental phenomena were certified by the crystal surface analysis and energy band structure construction. Moreover, CO2 adsorption capacity tests indicated that the incorporation of Pd is beneficial for the capture of CO2 molecules. We hope that this work to some extent will enrich the subject of photocatalytic CO2 reduction.
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Affiliation(s)
- Xiaojing Zhang
- School of Civil Engineering c/o Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
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Dheepthi GunaVathana S, Wilson J, Prashanthi R, Cyrac Peter A. CuO nanoflakes anchored polythiophene nanocomposite: Voltammetric detection of L-Tryptophan. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2020.108398] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Zhang S, Liu Z, Zhang L, Chen J, Zhou Q, Zhang H, Nie L, Dong Z, Zhang Z, Wang Z, Pan G. Construction of a low-temperature, highly sensitive H2S sensor based on surfaces and interfaces reaction triggered by Au-doped hierarchical structured composites. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2020.138188] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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35
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Fabrication and characterization of CuO nanoplates based sensor device for ethanol gas sensing application. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2020.138204] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mahar ZA, Shar GQ, Balouch A, Pato AH, Shaikh AR. Effective and viable photocatalytic degradation of rhodamine B dye in aqueous media using CuO/PVA nanocomposites. NEW J CHEM 2021. [DOI: 10.1039/d1nj02192c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Graphical representation of CuO/PVA nanocomposite synthesis to degrade rhodamine B dye in aqueous medium
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Affiliation(s)
- Zaheer Ahmed Mahar
- Institute of Chemistry, Shah Abdul Latif University, Khairpur 66020, Sindh, Pakistan
| | - Ghulam Qadir Shar
- Institute of Chemistry, Shah Abdul Latif University, Khairpur 66020, Sindh, Pakistan
| | - Aamna Balouch
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro, Pakistan
- Faculty of Science and Letters, Department of Physics Engineering, Istanbul Technical University, Maslak, 34467, Sariyer/Istanbul, Turkey
| | - Abdul Hameed Pato
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro, Pakistan
| | - Abdul Rauf Shaikh
- Institute of Chemistry, Shah Abdul Latif University, Khairpur 66020, Sindh, Pakistan
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Song L, Zhao FQ, Xu SY, Ju XH. Crystal morphology prediction of 2,2',4,4',6,6'-hexanitrostilbene (HNS) by molecular scale simulation. J Mol Model 2020; 26:213. [PMID: 32696175 DOI: 10.1007/s00894-020-04474-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 07/14/2020] [Indexed: 11/29/2022]
Abstract
The spiral growth model was applied to predict the crystal morphology of 2,2',4,4',6,6'-hexanitrostilbene (HNS). We selected solvents of N,N-dimethylformamide (DMF), N-methyl pyrrolidone (NMP), and nitric acid (NA) to control the crystal morphologies of HNS. Molecular dynamic simulations were used to relax the constructed interface model. The relative growth rate of important face is calculated by the spiral growth expression. The predicted crystal shapes are flaky in three solvents. Only (100), (001), and (011) faces are generated in DMF, NMP, and NA. The aspect ratios of the predicted HNS crystal morphologies in DMF, NMP, and NA are 23.00, 15.45, and 4.85, respectively. In addition, we analyzed the properties on each face using periodic bond chain, molecular arrangement, and roughness model. The excellent agreement between the predicted morphologies and the experimental images is clearly evident. These simulation results can provide guidance for the recrystallization of HNS. Graphical abstract.
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Affiliation(s)
- Liang Song
- Key Laboratory of Soft Chemistry and Functional Materials of MOE, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China
| | - Feng-Qi Zhao
- Science and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, People's Republic of China
| | - Si-Yu Xu
- Science and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, People's Republic of China
| | - Xue-Hai Ju
- Key Laboratory of Soft Chemistry and Functional Materials of MOE, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China.
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Dyndal K, Zarzycki A, Andrysiewicz W, Grochala D, Marszalek K, Rydosz A. CuO-Ga 2O 3 Thin Films as a Gas-Sensitive Material for Acetone Detection. SENSORS 2020; 20:s20113142. [PMID: 32498287 PMCID: PMC7309060 DOI: 10.3390/s20113142] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/30/2020] [Accepted: 06/01/2020] [Indexed: 12/20/2022]
Abstract
The p-n heterostructures of CuO-Ga2O3 obtained by magnetron sputtering technology in a fully reactive mode (deposition in pure oxygen) were tested under exposure to low acetone concentrations. After deposition, the films were annealed at previously confirmed conditions (400 °C/4 h/synthetic air) and further investigated by utilization of X-ray diffraction (XRD), X-ray reflectivity (XRR), energy-dispersive X-ray spectroscopy (EDS). The gas-sensing behavior was tested in the air/acetone atmosphere in the range of 0.1–1.25 ppm, as well as at various relative humidity (RH) levels (10–85%). The highest responses were obtained for samples based on the CuO-Ga2O3 (4% at. Ga).
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Affiliation(s)
- Katarzyna Dyndal
- Department of Electronics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-054 Kraków, Poland; (K.D.); (K.M.)
| | - Arkadiusz Zarzycki
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Kraków, Poland;
| | | | - Dominik Grochala
- Department of Biocybernetics and Biomedical Engineering, AGH University of Science and Technology, Al. Mickiewicza 30, Al. Mickiewicza 30, 30-054 Kraków, Poland;
| | - Konstanty Marszalek
- Department of Electronics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-054 Kraków, Poland; (K.D.); (K.M.)
| | - Artur Rydosz
- Department of Electronics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-054 Kraków, Poland; (K.D.); (K.M.)
- Correspondence: ; Tel.: +48-126-172-594
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40
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Wang C. Triethylamine sensing properties of ZnO nanostructures prepared by hydrothermal method at different pH values. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137471] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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41
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Wang Y, Chen L, Xu Z, Yi C, Zhong Z, Ju S, Xing W. A novel ultralight 3D-Mn(OH)4 porous material for heavy metal ions removal from water. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116426] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Green synthesis of Cu/Cu2O/CuO nanostructures and the analysis of their electrochemical properties. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2704-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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43
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An efficient chemical precipitation route to fabricate 3D flower-like CuO and 2D leaf-like CuO for degradation of methylene blue. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.01.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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44
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CuO/NiOx thin film–based photocathodes for photoelectrochemical water splitting. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04513-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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45
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Zhu Y, Pan Y, Zhang E, Dai W. A self-assembled urchin-like TiO2@Ag–CuO with enhanced photocatalytic activity toward tetracycline hydrochloride degradation. NEW J CHEM 2020. [DOI: 10.1039/d0nj02153a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A two-step approach based on alloy ribbon for preparing a ternary hetero-junction with enhanced photocatalytic activity toward tetracycline hydrochloride degradation.
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Affiliation(s)
- Yin'an Zhu
- School of Materials Science and Engineering
- Southeast University
- Jiangsu Key Laboratory for Advanced Metallic Materials
- Nanjing 211189
- China
| | - Ye Pan
- School of Materials Science and Engineering
- Southeast University
- Jiangsu Key Laboratory for Advanced Metallic Materials
- Nanjing 211189
- China
| | - Enming Zhang
- School of Materials Science and Engineering
- Southeast University
- Jiangsu Key Laboratory for Advanced Metallic Materials
- Nanjing 211189
- China
| | - Weiji Dai
- School of Materials Science and Engineering
- Southeast University
- Jiangsu Key Laboratory for Advanced Metallic Materials
- Nanjing 211189
- China
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46
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Ji H, Zeng W, Li Y. Gas sensing mechanisms of metal oxide semiconductors: a focus review. NANOSCALE 2019; 11:22664-22684. [PMID: 31755888 DOI: 10.1039/c9nr07699a] [Citation(s) in RCA: 182] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
In recent years, gas sensors have been increasingly used in industrial production and daily life. Metal oxide semiconductor gas sensing materials are favoured for their outstanding physical and chemical properties, low cost and simple preparation methods. However, the gas sensing mechanisms of metal oxide semiconductors have not been considered by researchers, resulting in omissions and errors in the interpretation of gas sensing mechanisms in many articles. This review organizes and introduces several common gas sensing mechanisms of metal oxide semiconductors in detail and classifies them into two categories. The scope and relationship of these mechanisms are clarified. In addition, this review selects four strategies for enhancing the gas sensing properties of metal oxide semiconductors and analyses the gas sensing mechanisms to highlight the importance of the gas sensing mechanism. Finally, some perspectives for future investigations on the gas sensing mechanisms of metal oxide semiconductors are discussed as well.
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Affiliation(s)
- Haocheng Ji
- College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China.
| | - Wen Zeng
- College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China. and State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Yanqiong Li
- School of Electronic and Electrical Engineering, Chongqing University of Arts and Sciences, Chongqing 400030, China
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47
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Fabrication of Gas-Sensor Chips Based on Silicon–Carbon Films Obtained by Electrochemical Deposition. CHEMOSENSORS 2019. [DOI: 10.3390/chemosensors7040052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this study, we designed two types of gas-sensor chips with silicon–carbon film, doped with CuO, as the sensitive layer. The first type of gas-sensor chip consists of an Al2O3 substrate with a conductive chromium sublayer of ~10 nm thickness and 200 Ω/□ surface resistance, deposited by magnetron sputtering. The second type was fabricated via the electrochemical deposition of a silicon–carbon film onto a dielectric substrate with copper electrodes formed by photoelectrochemical etching. The gas sensors are sensitive to the presence of CO and CH4 impurities in the air at operating temperatures above 150 °C, and demonstrated p- (type-1) and n-type (type-2) conductivity. The type-1 gas sensor showed fast response and recovery time but low sensitivity, while the type-2 sensor was characterized by high sensitivity but longer response and recovery time. The silicon–carbon films were characterized by the presence of the hexagonal 6H SiC polytype with the impurities of the rhombohedral 15 R SiC phase. XRD analysis revealed the presence of a CuO phase.
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48
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Synthesis of ZnO Hierarchical Structures and Their Gas Sensing Properties. NANOMATERIALS 2019; 9:nano9091277. [PMID: 31500273 PMCID: PMC6781051 DOI: 10.3390/nano9091277] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 08/25/2019] [Accepted: 09/04/2019] [Indexed: 11/16/2022]
Abstract
Firecracker-like ZnO hierarchical structures (ZnO HS1) were synthesized by combining electrospinning with hydrothermal methods. Flower-like ZnO hierarchical structures (ZnO HS2) were prepared by a hydrothermal method using ultrasound-treated ZnO nanofibers (ZnO NFs) as raw material which has rarely been reported in previous papers. Scanning electron microscope (SEM) and transmission electron microscope's (TEM) images clearly indicated the existence of nanoparticles on the ZnO HS2 material. Both gas sensors exhibited high selectivity toward H2S gas over various other gases at 180 °C. The ZnO HS2 gas sensor exhibited higher H2S sensitivity response (50 ppm H2S, 42.298) at 180 °C than ZnO NFs (50 ppm H2S, 9.223) and ZnO HS1 (50 ppm H2S, 17.506) gas sensors. Besides, the ZnO HS2 sensor showed a shorter response time (14 s) compared with the ZnO NFs (25 s) and ZnO HS1 (19 s) gas sensors. The formation diagram of ZnO hierarchical structures and the gas sensing mechanism were evaluated. Apart from the synergistic effect of nanoparticles and nanoflowers, more point-point contacts between flower-like ZnO nanorods were advantageous for the excellent H2S sensing properties of ZnO HS2 material.
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49
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Kim JH, Lee JH, Kim JY, Mirzaei A, Kim HW, Kim SS. Enhancement of CO and NO 2 sensing in n-SnO 2-p-Cu 2O core-shell nanofibers by shell optimization. JOURNAL OF HAZARDOUS MATERIALS 2019; 376:68-82. [PMID: 31125941 DOI: 10.1016/j.jhazmat.2019.05.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 05/02/2019] [Accepted: 05/11/2019] [Indexed: 06/09/2023]
Abstract
SnO2-Cu2O core-shell nanofibers (C-S NFs) with various shell thicknesses (15-80 nm) were fabricated for gas (CO and NO2) sensing applications. SnO2 NFs were produced by electrospinning and then coated with Cu2O by atomic layer deposition, which allows control of the shell thickness. The role of the Cu2O shell thickness on the sensing characteristics was investigated systematically. The sensor responses to both CO and NO2 gases exhibited bell-shaped curves in the range of 15-80 nm, which was related to the radial modulation of the hole-accumulation layer (HAL) in the Cu2O and blocking of the expansion of the HAL because of the existence of the n-p heterojunction. In addition, the volume fraction of the shell relative to the total volume of C-S has a direct effect on the total degree of resistance modulation. Furthermore, the effects of SnO2 surface-Cu2O heterojunctions and Cu2O grain boundaries on the sensing behavior are explained. This study revealed an important aspect of C-S nanostructures for sensing studies, which is needed to optimize the shell thickness and obtain the strongest response towards specific hazardous gases.
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Affiliation(s)
- Jae-Hun Kim
- Department of Materials Science and Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Jae-Hyoung Lee
- Department of Materials Science and Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Jin-Young Kim
- Department of Materials Science and Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Ali Mirzaei
- Department of Materials Science and Engineering, Shiraz University of Technology, Shiraz, Iran; Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Hyoun Woo Kim
- Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea; The Research Institute of Industrial Science, Hanyang University, Seoul, 04763, Republic of Korea.
| | - Sang Sub Kim
- Department of Materials Science and Engineering, Inha University, Incheon, 22212, Republic of Korea.
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50
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Chen J, Wu H, Fu Y, Yan M, Xu W, Cao H, He Q, Cheng J. A very sensitive and highly selective organic selector in CNTs composite chemiresistive for efficient differentiation of organic amine vapours. Talanta 2019; 199:698-704. [PMID: 30952317 DOI: 10.1016/j.talanta.2019.03.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/20/2019] [Accepted: 03/02/2019] [Indexed: 11/18/2022]
Abstract
With the call for the IoE (Internet of Everything), stable and efficient electric noses/tongues have become the most critical part of the sensor network. Identifying target gases efficiently and rapidly at ambient air becomes a focus on sensor research. We designed a chemiresistive sensor based on a composite of a specific selector and single-walled carbon nanotubes (SWNTs) for the detection and differentiation of organic amine vapours in air (25 ℃, 55% RH). The synergetic combination of F4-TCNQ (2,3,5,6-Tetrafluoro-7,7',8,8'-tetracyanoquinodimethane) and SWCNTs could modulate the electrical properties of sensor leading to the enhancement of response up to ppb-level for primary amine vapor detection. Different from traditional chemiresistive sensor, this sensing materials exhibit unique differences in response to different types of amines thought different mechanisms. We have proven the practical possibilities through the detection of the simulated complexed environmental atmosphere in industrial production. Furthermore, we explored the working mechanism of high-performance sensors, which could provide theoretical guidance for sensor design for more commercial applications. This study provided a simple, convenient, and highly efficient practical method for organic amine detection at ambient air for real-life applications.
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Affiliation(s)
- Jinming Chen
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China; University of the Chinese Academy of Sciences, Yuquan Road 19, Beijing 100039, China
| | - Huafeng Wu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
| | - Yanyan Fu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
| | - Mingzhu Yan
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China; University of the Chinese Academy of Sciences, Yuquan Road 19, Beijing 100039, China
| | - Wei Xu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
| | - Huimin Cao
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
| | - Qingguo He
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China.
| | - Jiangong Cheng
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China.
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