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Lv J, Zhang C, Qu G, Pan K, Qin J, Wei K, Liang Y. Modification strategies for semiconductor metal oxide nanomaterials applied to chemiresistive NO x gas sensors: A review. Talanta 2024; 273:125853. [PMID: 38460422 DOI: 10.1016/j.talanta.2024.125853] [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: 07/22/2023] [Revised: 02/14/2024] [Accepted: 02/28/2024] [Indexed: 03/11/2024]
Abstract
Semiconductor metal oxides (SMOs) nanomaterials are a category of sensing materials that are widely applied to chemiresistive NOx gas sensors. However, there is much space to improve the sensing performance of SMOs nanomaterials. Therefore, how to improve the sensing performance of SMOs nanomaterials for NOx gases has always attracted the interest of researchers. Up to now, there are few reviews focus on the modification strategies of SMOs which applied to NOx gas sensors. In order to compensate for the limitation, this review summarizes the existing modification strategies of SMOs, hoping to provide researchers a view of the research progress in this filed as comprehensive as possible. This review focuses on the progress of the modification of SMOs nanomaterials for chemiresistive NOx (NO, NO2) gas sensors, including the morphology modulation of SMOs, compositing SMOs, loading noble metals, doping metal ions, compositing with carbon nanomaterials, compositing with biomass template, and compositing with MXene, MOFs, conducting polymers. The mechanism of each strategy to enhance the NOx sensing performance of SMOs-based nanomaterials is also discussed and summarized. In addition, the limitations of some of the modification strategies and ways to address them are discussed. Finally, future perspectives for SMOs-based NOx gas sensors are also discussed.
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Affiliation(s)
- Jiaxin Lv
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Yunnan, 650500, China; National Regional Engineering Research Center-NCW, Yunnan, 650500, China
| | - Chaoneng Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Yunnan, 650500, China; National Regional Engineering Research Center-NCW, Yunnan, 650500, China
| | - Guangfei Qu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Yunnan, 650500, China; National Regional Engineering Research Center-NCW, Yunnan, 650500, China.
| | - Keheng Pan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Yunnan, 650500, China; National Regional Engineering Research Center-NCW, Yunnan, 650500, China
| | - Jin Qin
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Yunnan, 650500, China; National Regional Engineering Research Center-NCW, Yunnan, 650500, China
| | - Kunling Wei
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Yunnan, 650500, China; National Regional Engineering Research Center-NCW, Yunnan, 650500, China
| | - Yuqi Liang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Yunnan, 650500, China; National Regional Engineering Research Center-NCW, Yunnan, 650500, China
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Sun Y, Lu X, Huang Y, Wang G. Microwave-Solvothermal Synthesis of Mesoporous CeO 2/CNCs Nanocomposite for Enhanced Room Temperature NO 2 Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:812. [PMID: 38786769 PMCID: PMC11124451 DOI: 10.3390/nano14100812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 04/25/2024] [Accepted: 04/30/2024] [Indexed: 05/25/2024]
Abstract
Nitrogen dioxide (NO2) gas sensors are pivotal in upholding environmental integrity and human health, necessitating heightened sensitivity and exceptional selectivity. Despite the prevalent use of metal oxide semiconductors (MOSs) for NO2 detection, extant solutions exhibit shortcomings in meeting practical application criteria, specifically in response, selectivity, and operational temperatures. Here, we successfully employed a facile microwave-solvothermal method to synthesize a mesoporous CeO2/CNCs nanocomposite. This methodology entails the rapid and comprehensive dispersion of CeO2 nanoparticles onto helical carbon nanocoils (CNCs), resulting in augmented electronic conductivity and an abundance of active sites within the composite. Consequently, the gas-sensing sensitivity of the nanocomposite at room temperature experienced a notable enhancement. Moreover, the presence of cerium oxide and the conversion of Ce3+ and Ce4+ ions facilitated the generation of oxygen vacancies in the composites, thereby further amplifying the sensing performance. Experimental outcomes demonstrate that the nanocomposite exhibited an approximate 9-fold increase in response to 50 ppm NO2 in comparison to pure CNCs at room temperature. Additionally, the CeO2/CNCs sensor displayed remarkable selectivity towards NO2 when exposed to gases such as NH3, CO, SO2, CO2, and C2H5OH. This straightforward microwave-solvothermal method presents an appealing strategy for the research and development of intelligent sensors based on CNCs nanomaterials.
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Affiliation(s)
- Yanming Sun
- College of Electronics and Information Engineering, Shenzhen University, 3688 Nanhai Boulevard, Shenzhen 518060, China;
| | - Xiaoying Lu
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China; (X.L.); (Y.H.)
| | - Yanchen Huang
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China; (X.L.); (Y.H.)
| | - Guoping Wang
- College of Electronics and Information Engineering, Shenzhen University, 3688 Nanhai Boulevard, Shenzhen 518060, China;
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Khomarloo N, Mohsenzadeh E, Gidik H, Bagherzadeh R, Latifi M. Overall perspective of electrospun semiconductor metal oxides as high-performance gas sensor materials for NO x detection. RSC Adv 2024; 14:7806-7824. [PMID: 38444964 PMCID: PMC10913163 DOI: 10.1039/d3ra08119b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/18/2024] [Indexed: 03/07/2024] Open
Abstract
Gas sensors based on nanostructured semiconductor metal oxide (SMO) materials have been extensively investigated as key components due to their advantages over other materials, namely, high sensitivity, stability, affordability, rapid response and simplicity. However, the difficulty of working at high temperatures, response in lower concentration and their selectivity are huge challenges of SMO materials for detecting gases. Therefore, researchers have not stopped their quest to develop new gas sensors based on SMOs with higher performance. This paper begins by highlighting the importance of nitrogen monoxide (NO) and nitrogen dioxide (NO2) detection for human health and addresses the challenges associated with existing methods in effectively detecting them. Subsequently, the mechanism of SMO gas sensors, analysis of their structure and fabrication techniques focusing on electrospinning technique, as well as their advantages, difficulties, and structural design challenges are discussed. Research on enhancing the sensing performance through tuning the fabrication parameters are summarized as well. Finally, the problems and potential of SMO based gas sensors to detect NOx are revealed, and the future possibilities are stated.
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Affiliation(s)
- Niloufar Khomarloo
- Advanced Fibrous Materials Lab (AFM-LAB), Institute for Advanced Textile Materials and Technology, Amirkabir University of Technology (Tehran Polytechnic) Iran
- Univ. Lille, ENSAIT, Laboratoire Génie et Matériaux Textile (GEMTEX) F-59000 Lille France
- Junia F-59000 Lille France
| | - Elham Mohsenzadeh
- Univ. Lille, ENSAIT, Laboratoire Génie et Matériaux Textile (GEMTEX) F-59000 Lille France
- Junia F-59000 Lille France
| | - Hayriye Gidik
- Univ. Lille, ENSAIT, Laboratoire Génie et Matériaux Textile (GEMTEX) F-59000 Lille France
- Junia F-59000 Lille France
| | - Roohollah Bagherzadeh
- Advanced Fibrous Materials Lab (AFM-LAB), Institute for Advanced Textile Materials and Technology, Amirkabir University of Technology (Tehran Polytechnic) Iran
| | - Masoud Latifi
- Textile Engineering Department, Textile Research and Excellence Centers, Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
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Li C, Xiang K, Shen F, Wu J, Chen H, Liu C, Yuan J, Xie X, Yang W, Liu H. Constructing Heterointerfaces in Dual-Phase High-Entropy Oxides to Boost O 2 Activation and SO 2 Resistance for Mercury Removal in Flue Gas. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38410050 DOI: 10.1021/acsami.3c18372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
The low O2 activation ability at low temperatures and SO2 poisoning are challenges for metal oxide catalysts in the application of Hg0 removal in flue gas. A novel high-entropy fluorite oxide (MgAlMnCo)CeO2 (Co-HEO) with the second phase of spinel is synthesized by the microwave hydrothermal method for the first time. A high efficiency of Hg0 removal (close to 100%) is achieved by Co-HEO catalytic oxidation at temperatures as low as 100 °C and in the atmosphere of 145 μg m-3 Hg0 at a high GHSV (gas hourly space velocity) of 95,000 h-1. According to O2-TPD and in situ FT-IR, this extremely superior catalytic oxidation performance at low temperatures originates from the activation ability of Co-HEO to transform O2 into superoxide and peroxide, which is promoted by point defects induced from the spinel/fluorite heterointerfaces. Meanwhile, SO2 resistance of Co-HEO for Hg0 removal is also improved up to 2000 ppm due to the high-entropy-stabilized structure, construction of heterointerfaces, and synergistic effect of the multicomponents for inhibiting the oxidation of SO2 to surface sulfate. The design strategy of the dual-phase high-entropy material launches a new route for metal oxides in the application of catalytic oxidation and SO2 resistance.
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Affiliation(s)
- Chaofang Li
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Kaisong Xiang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Fenghua Shen
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Jun Wu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Hao Chen
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Cao Liu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Jing Yuan
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Xiaofeng Xie
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Weichun Yang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Hui Liu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
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Wang Q, Li H, Chu J, Pan J, Yang A, Xiao S, Yuan H, Rong M, Wang X. Real-Time Monitoring of Air Discharge in a Switchgear by an Intelligent NO 2 Sensor Module. ACS Sens 2023; 8:4646-4654. [PMID: 37976675 DOI: 10.1021/acssensors.3c01676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
An air-insulated power equipment adopts air as the insulating medium and is widely implemented in power systems. When discharge faults occur, the air produces decomposition products represented by NO2. The efficient NO2 sensor enables the identification of electrical equipment faults. However, single-sensor-dependent NO2 detection is vulnerable to interfering gases. Implementing the sensor array could reduce the interference and improve detection efficiency. In the field of NO2 detection, In2O3 sensors have exhibited tremendous advantages. In our work, four composites based on In2O3 are integrated into sensor arrays, which could detect 250 ppb of NO2 and exhibit excellent selectivity when simultaneously exposed to CO. To further reduce the impact of humidity on gas-sensing performance, a convolutional neural network and a long short-term memory model equipped with an attention mechanism are proposed to evaluate NO2 concentration within 1 ppm, and the detection error is 63.69 ppb. In addition, the NO2 concentration estimation platform based on a microgas sensor is established to detect air discharge faults. The average concentration of NO2 generated by 10 consecutive discharge faults at 15 kV is 726.58 ppb, which indicates severe discharge in the switchgear. Our NO2 estimation method has great potential for large-scale deployment in low- and medium-voltage switchgears.
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Affiliation(s)
- Qiongyuan Wang
- State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University, Xi'an 710049, China
| | - Haoyuan Li
- State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University, Xi'an 710049, China
| | - Jifeng Chu
- State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University, Xi'an 710049, China
| | - Jianbin Pan
- State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University, Xi'an 710049, China
| | - Aijun Yang
- State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University, Xi'an 710049, China
| | - Song Xiao
- School of Electrical Engineering, Wuhan University, Wuhan 430072, China
| | - Huan Yuan
- State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University, Xi'an 710049, China
| | - Mingzhe Rong
- State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiaohua Wang
- State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University, Xi'an 710049, China
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Naishadham K, Naishadham G, Cabrera N, Bekyarova E. Response Surface Modeling of the Steady-State Impedance Responses of Gas Sensor Arrays Comprising Functionalized Carbon Nanotubes to Detect Ozone and Nitrogen Dioxide. SENSORS (BASEL, SWITZERLAND) 2023; 23:8447. [PMID: 37896540 PMCID: PMC10610975 DOI: 10.3390/s23208447] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/25/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023]
Abstract
Carbon nanotube (CNT) sensors provide a versatile chemical platform for ambient monitoring of ozone (O3) and nitrogen dioxide (NO2), two important airborne pollutants known to cause acute respiratory and cardiovascular health problems. CNTs have shown great potential for use as sensing layers due to their unique properties, including high surface to volume ratio, numerous active sites and crystal facets with high surface reactivity, and high thermal and electrical conductivity. With operational advantages such as compactness, low-power operation, and easy integration with electronics devices, nanotechnology is expected to have a significant impact on portable low-cost environmental sensors. Enhanced sensitivity is feasible by functionalizing the CNTs with polymers, metals, and metal oxides. This paper focuses on the design and performance of a two-element array of O3 and NO2 sensors comprising single-walled CNTs functionalized by covalent modification with organic functional groups. Unlike the conventional chemiresistor in which the change in DC resistance across the sensor terminals is measured, we characterize the sensor array response by measuring both the magnitude and phase of the AC impedance. Multivariate response provides higher degrees of freedom in sensor array data processing. The complex impedance of each sensor is measured at 5 kHz in a controlled gas-flow chamber using gas mixtures with O3 in the 60-120 ppb range and NO2 between 20 and 80 ppb. The measured data reveal response change in the 26-36% range for the O3 sensor and 5-31% for the NO2 sensor. Multivariate optimization is used to fit the laboratory measurements to a response surface mathematical model, from which sensitivity and selectivity are calculated. The ozone sensor exhibits high sensitivity (e.g., 5 to 6 MΩ/ppb for the impedance magnitude) and high selectivity (0.8 to 0.9) for interferent (NO2) levels below 30 ppb. However, the NO2 sensor is not selective.
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Affiliation(s)
| | | | - Nelson Cabrera
- Carbon Solutions, Inc., Riverside, CA 92507, USA; (N.C.); (E.B.)
| | - Elena Bekyarova
- Carbon Solutions, Inc., Riverside, CA 92507, USA; (N.C.); (E.B.)
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Xiao HM, Hou YC, Guo YR, Pan QJ. The coupling of graphene, graphitic carbon nitride and cellulose to fabricate zinc oxide-based sensors and their enhanced activity towards air pollutant nitrogen dioxide. CHEMOSPHERE 2023; 324:138325. [PMID: 36889472 DOI: 10.1016/j.chemosphere.2023.138325] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 02/28/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
It is desirable but challenging to sense toxic nitrogen dioxide (NO2) for it has become one of the most prominent air pollutants. Zinc oxide-based gas sensors are known to detect NO2 gas efficiently, however, the sensing mechanism and involved intermediates structures remain underexplored. In the work, a series of sensitive materials, including zinc oxide (ZnO) and its composites ZnO/X [X = Cel (cellulose), CN (g-C3N4) and Gr (graphene)] have been comprehensively examined by density functional theory. It is found that ZnO favors adsorbing NO2 over ambient O2, and produces nitrate intermediates; and H2O is chemically held by zinc oxide, in line with the non-negligible impact of humidity on the sensitivity. Of the formed composites, ZnO/Gr exhibits the best NO2 gas-sensing performance, which is proved by the calculated thermodynamics and geometrical/electronic structures of reactants, intermediates and products. The interfacial interaction has been elaborated on for composites (ZnO/X) as well as their complexes (ZnO- and ZnO/X-adsorbates). The current study well explains experimental findings and opens up a way to design and unearth novel NO2 sensing materials.
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Affiliation(s)
- Hua-Min Xiao
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yu-Chang Hou
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yuan-Ru Guo
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China.
| | - Qing-Jiang Pan
- 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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Thongam DD, Chaturvedi H. Heterostructure charge transfer dynamics on self-assembled ZnO on electronically different single-walled carbon nanotubes. CHEMOSPHERE 2023; 323:138239. [PMID: 36841447 DOI: 10.1016/j.chemosphere.2023.138239] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/23/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
The charge transfer kinetics of the catalyst particles play a key role in advanced oxidation processes (AOP) for the complete destruction of recalcitrant and persistent contaminants in water. Here, a significant improvement in the photocatalytic performance is observed in the Single-Walled Carbon Nanotube (SWCNT)-ZnO heterostructure photocatalyst. The charge transfer dynamics and factors affecting AOP are studied using ZnO nanoparticles self-assembled onto three electronically different SWCNTs (metallic, semiconducting, and pristine) via the precipitation method, introducing a heterojunction interface. The creation of the SWCNT/ZnO heterostructure interface improves charge transfer and separation, resulting in a charge carrier lifetime of 7.37 ns. Also, surface area, pore size, and pore volumes are increased by 4.2 times compared to those of ZnO. The nanoparticles-coated face-mask fabric used as the floating photocatalyst exhibited high stability and recyclability with 99% RhB degradation efficiency under natural sunlight and 94% under UV light after the 5th cycle. The surface and crystal defects-oxygen or zinc defects/interstitials open new reaction active sites that assist in charge carrier transfer and act as pollutant absorption and interaction sites for enhanced performance. The ideal band edge positions of the valence band and conduction band favor the generation of H2O/OH•, OH·/OH, and O2/HO2• reactive oxygen species. OH• radicals are found to play a vital role in this AOP by using ethanol as an OH• scavenger.
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Affiliation(s)
- Debika Devi Thongam
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
| | - Harsh Chaturvedi
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
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Sun Y, Ding Z, Zhang Y, Dong Z, Sun L, Wang N, Yin M, Zhang J, Wang GP. Carbon nanocoils decorated with scale-like mesoporous NiO nanosheets for ultrasensitive room temperature ppb-level NO 2 sensing. Phys Chem Chem Phys 2023; 25:3485-3493. [PMID: 36637146 DOI: 10.1039/d2cp04860d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Although NO2 detection based on metal oxide semiconductors (MOSs) has received continuous attention, the sensing properties of MOSs still need to be further improved for practical application. Carbon nanocoils (CNCs) exhibit excellent physicochemical properties due to their unique polycrystalline amorphous structure and helical morphology. Herein, CNCs composited with NiO nanosheets were developed for room temperature NO2 sensing, in which highly dispersed mesoporous NiO nanosheets on CNCs was achieved with extremely higher sensitivity. Due to a large number of exposed active sites and the efficient conductive network of CNCs, this particular scale-like nanocomposite exhibits a nearly 8 times higher response to 60 ppm NO2 than bare NiO nanosheets at room temperature, outperforming the majority of previously reported NO2 sensors at room temperature. Moreover, the nanocomposite-based gas sensor has a detection concentration limit of 60.3 ppb, which is advantageous for the sensing of NO2 at low concentrations. We believe that this work will provide the direction for the research and development of highly sensitive smart sensors, as well as encourage further investigation of multifunctional sensing applications utilizing CNCs as the primary frame support material.
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Affiliation(s)
- Yanming Sun
- College of Electronics and Information Engineering, Shenzhen University, 3688 Nanhai Boulevard, Shenzhen, 518060, China.
| | - Zhezhe Ding
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China
| | - Yupeng Zhang
- College of Electronics and Information Engineering, Shenzhen University, 3688 Nanhai Boulevard, Shenzhen, 518060, China.
| | - Zhe Dong
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China
| | - Lei Sun
- College of Electronics and Information Engineering, Shenzhen University, 3688 Nanhai Boulevard, Shenzhen, 518060, China.
| | - Neng Wang
- College of Electronics and Information Engineering, Shenzhen University, 3688 Nanhai Boulevard, Shenzhen, 518060, China.
| | - Meijie Yin
- Electron Microscope Center, Shenzhen University, 3688 Nanhai Boulevard, Shenzhen, 518060, China
| | - Jian Zhang
- College of Electronics and Information Engineering, Shenzhen University, 3688 Nanhai Boulevard, Shenzhen, 518060, China. .,Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Guo Ping Wang
- College of Electronics and Information Engineering, Shenzhen University, 3688 Nanhai Boulevard, Shenzhen, 518060, China.
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10
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Wang Q, Huang T, Du J, Zhou L. Enhancement of Uranium Recycling from Tailings Caused by the Microwave Irradiation-Induced Composite Oxidation of the Fe-Mn Binary System. ACS OMEGA 2022; 7:24574-24586. [PMID: 35874237 PMCID: PMC9301716 DOI: 10.1021/acsomega.2c02392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The extraction of uranium (U)-related minerals from raw ore sands via a leaching procedure would produce enormous amounts of tailings, not only causing radioactivity contamination to surroundings but also wasting the potential U utilization. Effective recycling of U from U tailings is propitious to the current issues in U mining industries. In this study, the influence of the composite oxidation of Fe(III) and Mn(VII) intensified by microwave (MW) irradiation on the acid leaching of U from tailings was comprehensively explored in sequential and coupling systems. The U leaching activities from the tailing specimens were explicitly enhanced by MW irradiation. The composite oxidation caused by Fe(III) and Mn(VII) further facilitated the leaching of U ions from the tailing under MW irradiation in two systems. Maximum leaching efficiencies of 84.61, 80.56, and 92.95% for U ions were achieved in the Fe(III)-, Mn(VII)-, and Fe(III)-Mn(VII)-participated coupling systems, respectively. The inappropriateness of the shrinking core model (SCM) demonstrated by the linear fittings and analysis of variance (ANOVA) for the two systems explained a reverse increase of solid cores in the later stage of leaching experiments. The internal migration of oxidant ions into the particle cores enhanced by MW accelerated the dissolution of Al, Fe, and Mn constituents under acidic conditions, which further strengthened U extraction from tailing specimens.
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Affiliation(s)
- Qingxiang Wang
- School
of Safety Engineering, China University
of Mining and Technology, Xuzhou 221116, China
| | - Tao Huang
- School
of Safety Engineering, China University
of Mining and Technology, Xuzhou 221116, China
- School
of Materials Engineering, Changshu Institute
of Technology, Suzhou 215500, China
- Suzhou
Key Laboratory of Functional Ceramic Materials, Changshu Institute of Technology, Changshu 215500, China
| | - Jing Du
- School
of Materials Engineering, Changshu Institute
of Technology, Suzhou 215500, China
| | - Lulu Zhou
- School
of Materials Engineering, Changshu Institute
of Technology, Suzhou 215500, China
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11
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Thongam DD, Chaturvedi H. Functionalization of Pristine, Metallic, and Semiconducting-SWCNTs by ZnO for Efficient Charge Carrier Transfer: Analysis through Critical Coagulation Concentration. ACS OMEGA 2022; 7:14784-14796. [PMID: 35557661 PMCID: PMC9088952 DOI: 10.1021/acsomega.2c00193] [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: 01/13/2022] [Accepted: 04/06/2022] [Indexed: 06/15/2023]
Abstract
Noncovalent functionalization of single-walled carbon nanotubes (SWCNT) by semiconducting oxides is a majorly sought technique to retain individual properties while creating a synergetic effect for an efficient heterostructure charge transfer. Three types of electronically and optically different SWCNTs: metallic (m), semiconducting (s), and pristine (p) are functionalized by ZnO using a facile sonication method. The physicochemical and morphological properties of the ZnO-functionalized SWCNTs, m-SWCNT+ZnO, s-SWCNT+ZnO, and p-SWCNT+ZnO, are analyzed by advanced characterization techniques. Evidence of charge transfer between SWCNT and ZnO is observed with an increase in charge carrier lifetime from 3.31 ns (ZnO) to 4.76 ns (s-SWCNT+ZnO). To investigate the optimum interaction between SWCNTs and ZnO, critical coagulation concentrations (CCC) are determined using UV-vis absorption spectroscopy for m-SWCNT, s-SWCNT, and p-SWCNT using different molar concentrations of ZnO as the coagulant. The interaction and coagulation mechanisms are described by the modified DLVO theory. Due to the variation in dielectric values and electronic properties of SWCNTs, the CCC values obtained have differed: m-SWCNT (1.9 × 10-4), s-SWCNT (3.4 × 10-4), and p-SWCNT (2 × 10-4). An additional analysis of the aggregates and supernatants of the CCC experiments is also shown to give an insight into the interaction and coagulation processes, explaining the absence of influence exerted by sedimentation and centrifugation.
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Valdés-Madrigal MA, Montejo-Alvaro F, Cernas-Ruiz AS, Rojas-Chávez H, Román-Doval R, Cruz-Martinez H, Medina DI. Role of Defect Engineering and Surface Functionalization in the Design of Carbon Nanotube-Based Nitrogen Oxide Sensors. Int J Mol Sci 2021; 22:12968. [PMID: 34884770 PMCID: PMC8658008 DOI: 10.3390/ijms222312968] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 12/27/2022] Open
Abstract
Nitrogen oxides (NOx) are among the main atmospheric pollutants; therefore, it is important to monitor and detect their presence in the atmosphere. To this end, low-dimensional carbon structures have been widely used as NOx sensors for their outstanding properties. In particular, carbon nanotubes (CNTs) have been widely used as toxic-gas sensors owing to their high specific surface area and excellent mechanical properties. Although pristine CNTs have shown promising performance for NOx detection, several strategies have been developed such as surface functionalization and defect engineering to improve the NOx sensing of pristine CNT-based sensors. Through these strategies, the sensing properties of modified CNTs toward NOx gases have been substantially improved. Therefore, in this review, we have analyzed the defect engineering and surface functionalization strategies used in the last decade to modify the sensitivity and the selectivity of CNTs to NOx. First, the different types of surface functionalization and defect engineering were reviewed. Thereafter, we analyzed experimental, theoretical, and coupled experimental-theoretical studies on CNTs modified through surface functionalization and defect engineering to improve the sensitivity and selectivity to NOx. Finally, we presented the conclusions and the future directions of modified CNTs as NOx sensors.
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Affiliation(s)
- Manuel A. Valdés-Madrigal
- Instituto Tecnológico Superior de Ciudad Hidalgo, Tecnológico Nacional de México, Av. Ing. Carlos Rojas Gutiérrez 2120, Fracc. Valle de la Herradura, Ciudad Hidalgo 61100, Mexico;
| | - Fernando Montejo-Alvaro
- Instituto Tecnológico Del Valle de Etla, Tecnológico Nacional de México, Abasolo S/N, Barrio Del Agua Buena, Santiago Suchilquitongo, Oaxaca 68230, Mexico; (F.M.-A.); (R.R.-D.)
| | - Amelia S. Cernas-Ruiz
- Instituto Tecnológico del Istmo, Tecnológico Nacional de México, Panamericana 821, 2da., Juchitán de Zaragoza, Oaxaca 70000, Mexico;
| | - Hugo Rojas-Chávez
- Instituto Tecnológico de Tláhuac II, Tecnológico Nacional de México, Camino Real 625, Tláhuac, Ciudad de México 13508, Mexico;
| | - Ramon Román-Doval
- Instituto Tecnológico Del Valle de Etla, Tecnológico Nacional de México, Abasolo S/N, Barrio Del Agua Buena, Santiago Suchilquitongo, Oaxaca 68230, Mexico; (F.M.-A.); (R.R.-D.)
| | - Heriberto Cruz-Martinez
- Instituto Tecnológico Del Valle de Etla, Tecnológico Nacional de México, Abasolo S/N, Barrio Del Agua Buena, Santiago Suchilquitongo, Oaxaca 68230, Mexico; (F.M.-A.); (R.R.-D.)
| | - Dora I. Medina
- School of Engineering and Sciences, Tecnologico de Monterrey, Atizapan de Zaragoza 52926, Mexico
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13
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Yang M, Au C, Deng G, Mathur S, Huang Q, Luo X, Xie G, Tai H, Jiang Y, Chen C, Cui Z, Liu X, He C, Su Y, Chen J. NiWO 4 Microflowers on Multi-Walled Carbon Nanotubes for High-Performance NH 3 Detection. ACS APPLIED MATERIALS & INTERFACES 2021; 13:52850-52860. [PMID: 34714039 DOI: 10.1021/acsami.1c10805] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
NiWO4 microflowers with a large surface area up to 79.77 m2·g-1 are synthesized in situ via a facile coprecipitation method. The NiWO4 microflowers are further decorated with multi-walled carbon nanotubes (MWCNTs) and assembled to form composites for NH3 detection. The as-fabricated composite exhibits an excellent NH3 sensing response/recovery time (53 s/177 s) at a temperature of 460 °C, which is a 10-fold enhancement compared to that of pristine NiWO4. It also demonstrates a low detection limit of 50 ppm; the improved sensing performance is attributed to the porous structure of the material, the large specific surface area, and the p-n heterojunction formed between the MWNTs and NiWO4. The gas sensitivity of the sensor based on daisy-like NiWO4/MWCNTs shows that the sensor based on 10 mol % (MWN10) has the best gas sensitivity, with a sensitivity of 13.07 to 50 ppm NH3 at room temperature and a detection lower limit of 20 ppm. NH3, CO2, NO2, SO2, CO, and CH4 are used as typical target gases to construct the NiWO4/MWCNTs gas-sensitive material and study the research method combining density functional theory calculations and experiments. By calculating the morphology and structure of the gas-sensitive material NiWO4(110), the MWCNT load samples, the vacancy defects, and the influence law and internal mechanism of gas sensitivity were described.
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Affiliation(s)
- Min Yang
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu 611130, China
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Christian Au
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Guowei Deng
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu 611130, China
| | - Shaurya Mathur
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Qiuping Huang
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu 611130, China
| | - Xiaolan Luo
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu 611130, China
| | - Guangzhong Xie
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Huiling Tai
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Yadong Jiang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Chunxu Chen
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Zheng Cui
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Xiaoyang Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Chaozheng He
- Institute of Environmental and Energy Catalysis, School of Materials Science and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
| | - Yuanjie Su
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Jun Chen
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, United States
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14
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Drera G, Freddi S, Emelianov AV, Bobrinetskiy II, Chiesa M, Zanotti M, Pagliara S, Fedorov FS, Nasibulin AG, Montuschi P, Sangaletti L. Exploring the performance of a functionalized CNT-based sensor array for breathomics through clustering and classification algorithms: from gas sensing of selective biomarkers to discrimination of chronic obstructive pulmonary disease. RSC Adv 2021; 11:30270-30282. [PMID: 35480252 PMCID: PMC9041100 DOI: 10.1039/d1ra03337a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/27/2021] [Indexed: 12/18/2022] Open
Abstract
An array of carbon nanotube (CNT)-based sensors was produced for sensing selective biomarkers and evaluating breathomics applications with the aid of clustering and classification algorithms. We assessed the sensor array performance in identifying target volatiles and we explored the combination of various classification algorithms to analyse the results obtained from a limited dataset of exhaled breath samples. The sensor array was exposed to ammonia (NH3), nitrogen dioxide (NO2), hydrogen sulphide (H2S), and benzene (C6H6). Among them, ammonia (NH3) and nitrogen dioxide (NO2) are known biomarkers of chronic obstructive pulmonary disease (COPD). Calibration curves for individual sensors in the array were obtained following exposure to the four target molecules. A remarkable response to ammonia (NH3) and nitrogen dioxide (NO2), according to benchmarking with available data in the literature, was observed. Sensor array responses were analyzed through principal component analysis (PCA), thus assessing the array selectivity and its capability to discriminate the four different target volatile molecules. The sensor array was then exposed to exhaled breath samples from patients affected by COPD and healthy control volunteers. A combination of PCA, supported vector machine (SVM), and linear discrimination analysis (LDA) shows that the sensor array can be trained to accurately discriminate healthy from COPD subjects, in spite of the limited dataset. Extensive application of clustering and classification algorithms shows the potential of a CNT-based sensor array in breathomics.![]()
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Affiliation(s)
- Giovanni Drera
- Department of Mathematics and Physics, Università Cattolica del Sacro Cuore via dei Musei 41 25121 Brescia Italy .,Surface Science and Spectroscopy Lab @ I-Lamp, Università Cattolica del Sacro Cuore, Brescia Campus Italy
| | - Sonia Freddi
- Department of Mathematics and Physics, Università Cattolica del Sacro Cuore via dei Musei 41 25121 Brescia Italy .,Surface Science and Spectroscopy Lab @ I-Lamp, Università Cattolica del Sacro Cuore, Brescia Campus Italy.,Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Aleksei V Emelianov
- National Research University of Electronic Technology Zelenograd Moscow 124498 Russia.,P. N. Lebedev Physical Institute of the Russian Academy of Sciences Moscow 119991 Russia
| | - Ivan I Bobrinetskiy
- National Research University of Electronic Technology Zelenograd Moscow 124498 Russia.,BioSense Institute - Research and Development Institute for Information Technologies in Biosystems, University of Novi Sad Dr Zorana Djindjica 1a 21000 Novi Sad Serbia
| | - Maria Chiesa
- Department of Mathematics and Physics, Università Cattolica del Sacro Cuore via dei Musei 41 25121 Brescia Italy
| | - Michele Zanotti
- Department of Mathematics and Physics, Università Cattolica del Sacro Cuore via dei Musei 41 25121 Brescia Italy .,Surface Science and Spectroscopy Lab @ I-Lamp, Università Cattolica del Sacro Cuore, Brescia Campus Italy
| | - Stefania Pagliara
- Department of Mathematics and Physics, Università Cattolica del Sacro Cuore via dei Musei 41 25121 Brescia Italy .,Surface Science and Spectroscopy Lab @ I-Lamp, Università Cattolica del Sacro Cuore, Brescia Campus Italy
| | - Fedor S Fedorov
- Skolkovo Institute of Science and Technology Moscow 121205 Russia
| | - Albert G Nasibulin
- Skolkovo Institute of Science and Technology Moscow 121205 Russia.,Aalto University, Department of Chemistry and Materials Science FI-00076 Espoo Finland
| | - Paolo Montuschi
- Department of Pharmacology, Faculty of Medicine, Catholic University of the Sacred Heart Largo Francesco Vito, 1 00168 Roma Italy
| | - Luigi Sangaletti
- Department of Mathematics and Physics, Università Cattolica del Sacro Cuore via dei Musei 41 25121 Brescia Italy .,Surface Science and Spectroscopy Lab @ I-Lamp, Università Cattolica del Sacro Cuore, Brescia Campus Italy
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15
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Zhou T, Zhang T. Recent Progress of Nanostructured Sensing Materials from 0D to 3D: Overview of Structure-Property-Application Relationship for Gas Sensors. SMALL METHODS 2021; 5:e2100515. [PMID: 34928067 DOI: 10.1002/smtd.202100515] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/23/2021] [Indexed: 05/27/2023]
Abstract
Along with the progress of nanoscience and nanotechnology, nanomaterials with attractive structural and functional properties have gained more attention than ever before, especially in the field of electronic sensors. In recent years, the gas sensing devices have made great achievement and also created wide application prospects, which leads to a new wave of research for designing advanced sensing materials. There is no doubt that the characteristics are highly governed by the sensitive layers. For this reason, important advances for the outstanding, novel sensing materials with different dimensional structures including 0D, 1D, 2D, and 3D are reported and summarized systematically. The sensing materials cover noble metals, metal oxide semiconductors, carbon nanomaterials, metal dichalcogenides, g-C3 N4 , MXenes, and complex composites. Discussion is also extended to the relation between sensing performances and their structure, electronic properties, and surface chemistry. In addition, some gas sensing related applications are also highlighted, including environment monitoring, breath analysis, food quality and safety, and flexible wearable electronics, from current situation and the facing challenges to the future research perspectives.
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Affiliation(s)
- Tingting Zhou
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Tong Zhang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P. R. China
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16
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Mullani SB, Dhodamani AG, Shellikeri A, Mullani NB, Tawade AK, Tayade SN, Biscay J, Dennany L, Delekar SD. Structural refinement and electrochemical properties of one dimensional (ZnO NRs) 1-x(CNs) x functional hybrids for serotonin sensing studies. Sci Rep 2020; 10:15955. [PMID: 32994507 PMCID: PMC7524834 DOI: 10.1038/s41598-020-72756-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 08/10/2020] [Indexed: 12/28/2022] Open
Abstract
Herein, the efficient serotonin (5-HT) sensing studies have been conducted using the (ZnO NRs)1-x(CNs)x nanocomposites (NCs) having appropriate structural and electrochemical properties. Initially, the different compositions of ZnO nanorods (NRs), with varying content of carbon nanostructures (CNs=MWCNTs and RGO), are prepared using simple in-situ wet chemical method and thereafter these NCs have been characterized for physico-chemical properties in correlation to the 5-HT sensing activity. XRD Rietveld refinement studies reveal the hexagonal Wurtzite ZnO NRs oriented in (101) direction with space group 'P63mc' and both orientation as well as phase of ZnO NRs are also retained in the NCs due to the small content of CNs. The interconnectivity between the ZnO NRs with CNs through different functional moieties is also studied using FTIR analysis; while phases of the constituents are confirmed through Raman analysis. FESEM images of the bare/NCs show hexagonal shaped rods with higher aspect ratio (4.87) to that of others. BET analysis and EIS measurements reveal the higher surface area (97.895 m2/g), lower charge transfer resistance (16.2 kΩ) for the ZCNT 0.1 NCs to that of other NCs or bare material. Thereafter, the prepared NCs are deposited on the screen printed carbon electrode (SPCE) using chitosan as cross-linked agent for 5-HT sensing studies; conducted through cyclic voltammetry (CV) and square wave voltammetry (SWV) measurements. Among the various composites, ZCNT0.1 NCs based electrodes exhibit higher sensing activity towards 5-HT in accordance to its higher surface area, lower particle size and lower charge transfer resistance. SWV measurements provide a wide linear response range (7.5-300 μM); lower limit of detection (0.66 μM), excellent limit of quantification (2.19 μM) and good reproducibility to ZCNT 0.1 NCs as compared to others for 5-HT sensing studies.
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Affiliation(s)
- Sajid B Mullani
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Ananta G Dhodamani
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Annadanesh Shellikeri
- Department of Electrical and Computer Engineering, Florida A&M University-Florida State University, Tallahassee, FL, 32310-6046, USA
- Aero-Propulsion, Mechatronics and Energy Centre, Florida State University, Tallahassee, FL, 32310-6046, USA
| | - Navaj B Mullani
- Department of Advanced Materials and Chemical Engineering, Hanyang University (ERICA), Ansan, 15588, South Korea
| | - Anita K Tawade
- School of Nanoscience and Biotechnology, Shivaji University, Kolhapur, 416004, MS, India
| | - Shivaji N Tayade
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Julien Biscay
- Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
| | - Lynn Dennany
- Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
| | - Sagar D Delekar
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India.
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