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Chen Y, Han D, Wang Z, Gu F. Interface Defects and Carrier Regulation in MOF-Derived Co 3O 4/In 2O 3 Composite Materials for Enhanced Selective Detection of HCHO. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38659088 DOI: 10.1021/acsami.4c01077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Gas sensors for real-time monitoring of low HCHO concentrations have promising applications in the field of health protection and air treatment, and this work reports a novel resistive gas sensor with high sensitivity and selectivity to HCHO. The MOF-derived hollow In2O3 was mixed with ZIF-67(Co) and calcined twice to obtain a hollow Co3O4/In2O3 (hereafter collectively termed MZO-6) composite enriched with oxygen vacancies, and tests such as XPS and EPR proved that the strong interfacial electronic coupling increased the oxygen vacancies. The gas-sensitive test results show that the hollow composite MZO-6 with abundant oxygen vacancies has a higher response value (11,003) to 10 ppm of HCHO and achieves a fast response/recovery time (11/181 s) for HCHO at a lower operating temperature (140 °C). The MZO-6 material significantly enhances the selectivity to HCHO and reduces the interference of common pollutant gases such as ethanol, acetone, and xylene. There is no significant fluctuation of resistance and response values in the 30-day long-term stability test, and the material has good stability. The synergistic effect of the heterostructure and oxygen vacancies altered the formaldehyde adsorption intermediate pathway and reduced the reaction activation energy, enhancing the HCHO responsiveness and selectivity of the MZO-6 material.
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Affiliation(s)
- Yi Chen
- State Key Laboratory of Chemical Resources Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dongmei Han
- State Key Laboratory of Chemical Resources Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhihua Wang
- State Key Laboratory of Chemical Resources Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Fubo Gu
- State Key Laboratory of Chemical Resources Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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2
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Uzun E, Yıldız E, Öztürk E. Photoluminescence and thermoluminescence properties of pure and rare-earth-doped ZrO 2 prepared by Pechini-type sol-gel. LUMINESCENCE 2023; 38:2034-2047. [PMID: 37675584 DOI: 10.1002/bio.4592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 07/12/2023] [Accepted: 08/20/2023] [Indexed: 09/08/2023]
Abstract
In this article, photoluminescence (PL) and thermoluminescence (TL) properties of ZrO2 , ZrO2 :Dy3+ , ZrO2 :Dy3+ -Gd3+ , ZrO2 :Dy3+ -Yb3+ , ZrO2 :Dy3+ -Er3+ , and ZrO2 :Dy3+ -Sm3+ phosphors synthesized by the Pechini method were investigated. The crystal structure, thermal properties, morphology, PL and TL properties were investigated using X-ray powder diffraction (XRD), differential thermal analysis/thermogravimetric analysis (DTA/TGA), scanning electron microscopy (SEM), PL and TL, respectively. The room temperature emission bands corresponding to 4 F9/2 → 6 HJ (J = 9/2, 11/2, 13/2 and 15/2) transitions of Dy3+ ions were measured. The phosphors were analysed using Tm -TSTOP , variable dose, and computerized glow curve fitting methods. Reusability, dose-response, and fading characteristics were investigated. The phosphors have a natural TL emission that vanished by heating treatment. Moreover, new peaks with similar properties to the natural emissions were observed after high-dose irradiation and long-term fading experiments. The glow curves of the phosphors have 13 individual peaks and many low- and high-temperature satellite peaks. The origin of the peaks is ZrO2 host material and doping with rare-earth ions (Gd3+ , Dy3+ , Yb3+ , Er3+ and Sm3+ ) does not lead to a new glow peak. The dopants cause drastic changes in individual peak intensities of ZrO2 .The initial fading rates of all the phosphors are relatively fast, but they slow down as time goes on.
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Affiliation(s)
- Erdem Uzun
- Faculty of Kamil Özdağ Science, Department of Physics, Karamanoglu Mehmetbey University, Karaman, Turkey
| | - Esra Yıldız
- Cannabis Research Institute, Department of Basic Sciences and Health, Yozgat Bozok University, Yozgat, Turkey
| | - Esra Öztürk
- Faculty of Engineering, Department of Metallurgical and Materials Engineering, Karamanoglu Mehmetbey University, Karaman, Turkey
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3
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Jo YM, Jo YK, Lee JH, Jang HW, Hwang IS, Yoo DJ. MOF-Based Chemiresistive Gas Sensors: Toward New Functionalities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2206842. [PMID: 35947765 DOI: 10.1002/adma.202206842] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Indexed: 06/15/2023]
Abstract
The sensing performances of gas sensors must be improved and diversified to enhance quality of life by ensuring health, safety, and convenience. Metal-organic frameworks (MOFs), which exhibit an extremely high surface area, abundant porosity, and unique surface chemistry, provide a promising framework for facilitating gas-sensor innovations. Enhanced understanding of conduction mechanisms of MOFs has facilitated their use as gas-sensing materials, and various types of MOFs have been developed by examining the compositional and morphological dependences and implementing catalyst incorporation and light activation. Owing to their inherent separation and absorption properties and catalytic activity, MOFs are applied as molecular sieves, absorptive filtering layers, and heterogeneous catalysts. In addition, oxide- or carbon-based sensing materials with complex structures or catalytic composites can be derived by the appropriate post-treatment of MOFs. This review discusses the effective techniques to design optimal MOFs, in terms of computational screening and synthesis methods. Moreover, the mechanisms through which the distinctive functionalities of MOFs as sensing materials, heterostructures, and derivatives can be incorporated in gas-sensor applications are presented.
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Affiliation(s)
- Young-Moo Jo
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA
| | - Yong Kun Jo
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Jong-Heun Lee
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Ho Won Jang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - In-Sung Hwang
- Sentech Gmi Co. Ltd, Seoul, 07548, Republic of Korea
| | - Do Joon Yoo
- SentechKorea Co. Ltd, Paju, 10863, Republic of Korea
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4
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Eswaran A, Thirumalainambi M, Subramaniam R, Annadurai G. Highly selective CO 2 sensing response of lanthanum oxide nanoparticle electrodes at ambient temperature. NANOSCALE ADVANCES 2023; 5:3761-3770. [PMID: 37441249 PMCID: PMC10334415 DOI: 10.1039/d3na00199g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/19/2023] [Indexed: 07/15/2023]
Abstract
Lanthanum oxide nanoparticles (La2O3 NPs) are attractive rare earth metal oxides because of their applications in optical devices, catalysts, dielectric layers, and sensors. Herein, we report room temperature operative carbon dioxide gas sensing electrodes developed by a simple sonication assisted hydrothermal method. The physiochemical, morphological and gas-sensing properties of the prepared nanoparticles were studied systematically and their successful preparation was confirmed with the absence of impurities and high selectivity towards CO2. The fabricated sensor showed a high sensitivity of 40% towards CO2 at 50 ppm, and it can detect concentrations of up to 5 ppm with a quick response time of 6 s and recovery of 5 s. The electrode demonstrated long-term stability of 95% for 50 days when tested with an interval of 10 days. This simple and cost-effective method shows great potential for fabricating room temperature CO2 gas sensors.
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Affiliation(s)
- Amutha Eswaran
- Sri Paramakalyani Centre of Excellence in Environmental Sciences, Manonmaniam Sundaranar University Alwarkurichi - 627412 India
| | - Madhumitha Thirumalainambi
- Sri Paramakalyani Centre of Excellence in Environmental Sciences, Manonmaniam Sundaranar University Alwarkurichi - 627412 India
| | | | - Gurusamy Annadurai
- Sri Paramakalyani Centre of Excellence in Environmental Sciences, Manonmaniam Sundaranar University Alwarkurichi - 627412 India
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5
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Cepa JJ, Pavón RM, Caramés P, Alberti MG. A Review of Gas Measurement Practices and Sensors for Tunnels. SENSORS (BASEL, SWITZERLAND) 2023; 23:1090. [PMID: 36772130 PMCID: PMC9919948 DOI: 10.3390/s23031090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/23/2022] [Accepted: 01/15/2023] [Indexed: 06/18/2023]
Abstract
The concentration of pollutant gases emitted by traffic in a tunnel affects the indoor air quality and contributes to structural deterioration. Demand control ventilation systems incur high operating costs, so reliable measurement of the gas concentration is essential. Numerous commercial sensor types are available with proven experience, such as optical and first-generation electrochemical sensors, or novel materials in detection methods. However, all of them are subjected to measurement deviations due to environmental conditions. This paper presents the main types of sensors and their application in tunnels. Solutions will also be discussed in order to obtain reliable measurements and improve the efficiency of the extraction systems.
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6
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Dervieux E, Théron M, Uhring W. Carbon Dioxide Sensing-Biomedical Applications to Human Subjects. SENSORS (BASEL, SWITZERLAND) 2021; 22:188. [PMID: 35009731 PMCID: PMC8749784 DOI: 10.3390/s22010188] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/13/2021] [Accepted: 12/20/2021] [Indexed: 02/06/2023]
Abstract
Carbon dioxide (CO2) monitoring in human subjects is of crucial importance in medical practice. Transcutaneous monitors based on the Stow-Severinghaus electrode make a good alternative to the painful and risky arterial "blood gases" sampling. Yet, such monitors are not only expensive, but also bulky and continuously drifting, requiring frequent recalibrations by trained medical staff. Aiming at finding alternatives, the full panel of CO2 measurement techniques is thoroughly reviewed. The physicochemical working principle of each sensing technique is given, as well as some typical merit criteria, advantages, and drawbacks. An overview of the main CO2 monitoring methods and sites routinely used in clinical practice is also provided, revealing their constraints and specificities. The reviewed CO2 sensing techniques are then evaluated in view of the latter clinical constraints and transcutaneous sensing coupled to a dye-based fluorescence CO2 sensing seems to offer the best potential for the development of a future non-invasive clinical CO2 monitor.
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Affiliation(s)
- Emmanuel Dervieux
- BiOSENCY, 1137a Avenue des Champs Blancs, 35510 Cesson-Sévigné, France
| | - Michaël Théron
- ORPHY, Université de Bretagne Occidentale, 6 Avenue Victor le Gorgeu, 29238 Brest, France;
| | - Wilfried Uhring
- ICube, University of Strasbourg and CNRS, 23 rue du Loess, CEDEX, 67037 Strasbourg, France;
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7
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Han M, Jung S, Lee Y, Jung D, Kong SH. PEI-Functionalized Carbon Nanotube Thin Film Sensor for CO 2 Gas Detection at Room Temperature. MICROMACHINES 2021; 12:mi12091053. [PMID: 34577697 PMCID: PMC8469097 DOI: 10.3390/mi12091053] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 11/16/2022]
Abstract
In this study, a polyethyleneimine (PEI)-functionalized carbon nanotube (CNT) sensor was fabricated for carbon dioxide detection at room temperature. Uniform CNT thin films prepared using a filtration method were used as resistive networks. PEI, which contains amino groups, can effectively react with CO2 gas by forming carbamates at room temperatures. The morphology of the sensor was observed, and the properties were analyzed by scanning electron microscope (SEM), Raman spectroscopy, and fourier transform infrared (FT-IR) spectroscopy. When exposed to CO2 gas, the fabricated sensor exhibited better sensitivity than the pristine CNT sensor at room temperature. Both the repeatability and selectivity of the sensor were studied.
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Affiliation(s)
- Maeum Han
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Korea; (M.H.); (S.J.); (Y.L.)
| | - Soonyoung Jung
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Korea; (M.H.); (S.J.); (Y.L.)
- Advanced Mechatronics R&D Group, Korea Institute of Industrial Technology (KITECH), Yeongcheon 38822, Korea
| | - Yeonsu Lee
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Korea; (M.H.); (S.J.); (Y.L.)
- Advanced Mechatronics R&D Group, Korea Institute of Industrial Technology (KITECH), Yeongcheon 38822, Korea
| | - Daewoong Jung
- Advanced Mechatronics R&D Group, Korea Institute of Industrial Technology (KITECH), Yeongcheon 38822, Korea
- Correspondence: (D.J.); (S.H.K.)
| | - Seong Ho Kong
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Korea; (M.H.); (S.J.); (Y.L.)
- Correspondence: (D.J.); (S.H.K.)
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8
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Gautam YK, Sharma K, Tyagi S, Ambedkar AK, Chaudhary M, Pal Singh B. Nanostructured metal oxide semiconductor-based sensors for greenhouse gas detection: progress and challenges. ROYAL SOCIETY OPEN SCIENCE 2021; 8:201324. [PMID: 33959316 PMCID: PMC8074944 DOI: 10.1098/rsos.201324] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 02/10/2021] [Indexed: 05/25/2023]
Abstract
Climate change and global warming have been two massive concerns for the scientific community during the last few decades. Anthropogenic emissions of greenhouse gases (GHGs) have greatly amplified the level of greenhouse gases in the Earth's atmosphere which results in the gradual heating of the atmosphere. The precise measurement and reliable quantification of GHGs emission in the environment are of the utmost priority for the study of climate change. The detection of GHGs such as carbon dioxide, methane, nitrous oxide and ozone is the first and foremost step in finding the solution to manage and reduce the concentration of these gases in the Earth's atmosphere. The nanostructured metal oxide semiconductor (NMOS) based technologies for sensing GHGs emission have been found most reliable and accurate. Owing to their fascinating structural and morphological properties metal oxide semiconductors become an important class of materials for GHGs emission sensing technology. In this review article, the current concentration of GHGs in the Earth's environment, dominant sources of anthropogenic emissions of these gases and consequently their possible impacts on human life have been described briefly. Further, the different available technologies for GHG sensors along with their principle of operation have been largely discussed. The advantages and disadvantages of each sensor technology have also been highlighted. In particular, this article presents a comprehensive study on the development of various NMOS-based GHGs sensors and their performance analysis in order to establish a strong detection technology for the anthropogenic GHGs. In the last, the scope for improved sensitivity, selectivity and response time for these sensors, their future trends and outlook for researchers are suggested in the conclusion of this article.
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Affiliation(s)
- Yogendra K. Gautam
- Smart Materials and Sensor Laboratory, Department of Physics, CCS University, Meerut, Uttar Pradesh 250004, India
| | - Kavita Sharma
- Smart Materials and Sensor Laboratory, Department of Physics, CCS University, Meerut, Uttar Pradesh 250004, India
| | - Shrestha Tyagi
- Smart Materials and Sensor Laboratory, Department of Physics, CCS University, Meerut, Uttar Pradesh 250004, India
| | - Anit K. Ambedkar
- Smart Materials and Sensor Laboratory, Department of Physics, CCS University, Meerut, Uttar Pradesh 250004, India
| | - Manika Chaudhary
- Smart Materials and Sensor Laboratory, Department of Physics, CCS University, Meerut, Uttar Pradesh 250004, India
| | - Beer Pal Singh
- Smart Materials and Sensor Laboratory, Department of Physics, CCS University, Meerut, Uttar Pradesh 250004, India
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9
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Self-Assembled Monolayers Coated Porous SnO 2 Film Gas Sensor with Reduced Humidity Influence. SENSORS 2021; 21:s21020610. [PMID: 33477265 PMCID: PMC7829704 DOI: 10.3390/s21020610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 11/16/2022]
Abstract
Metal-oxide sensors, detect gas through the reaction of surface oxygen molecules with target gases, are promising for the detection of toxic pollutant gases, combustible gases, and organic vapors; however, their sensitivity, selectivity, and long-term stability limit practical applications. Porous structure for increasing surface area, adding catalyst, and altering the operation temperature are proposed for enhancing the sensitivity and selectivity. Although humidity can significantly affect the property and stability of the sensors, studies focusing on the long-term stability of gas sensors are scarce. To reduce the effects of humidity, 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane (PFOTS) was coated on a porous SnO2 film. The interconnected SnO2 nanowires improved the high surface area, and the PFOTS coating provided superhydrophobicity at water contact angle of 159°and perfect water vapor repellency inside E-SEM. The superhydrophobic porous morphology was maintained under relative humidity of 99% and operating temperature of 300 °C. The CO gas sensing of 5, 20, and 50 ppm were obtained with linearity at various humidity. Flame detection was also achieved with practical high humidity conditions. These results suggest the simple way for reliable sensing of nanostructured metal-oxide gas sensors with high sensitivity and long-term stability even in highly humid environments.
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10
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Rezk MY, Sharma J, Gartia MR. Nanomaterial-Based CO 2 Sensors. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2251. [PMID: 33202957 PMCID: PMC7697554 DOI: 10.3390/nano10112251] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 12/29/2022]
Abstract
The detection of carbon dioxide (CO2) is critical for environmental monitoring, chemical safety control, and many industrial applications. The manifold application fields as well as the huge range of CO2 concentration to be measured make CO2 sensing a challenging task. Thus, the ability to reliably and quantitatively detect carbon dioxide requires vastly improved materials and approaches that can work under different environmental conditions. Due to their unique favorable chemical, optical, physical, and electrical properties, nanomaterials are considered state-of-the-art sensing materials. This mini-review documents the advancement of nanomaterial-based CO2 sensors in the last two decades and discusses their strengths, weaknesses, and major applications. The use of nanomaterials for CO2 sensing offers several improvements in terms of selectivity, sensitivity, response time, and detection, demonstrating the advantage of using nanomaterials for developing high-performance CO2 sensors. Anticipated future trends in the area of nanomaterial-based CO2 sensors are also discussed in light of the existing limitations.
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Affiliation(s)
- Marwan Y Rezk
- Department of Petroleum Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Jyotsna Sharma
- Department of Petroleum Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Manas Ranjan Gartia
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
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11
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Synthesis of rare earth hydroxycarbonate (LaOHCO3) nanocrystals with tuneable morphology and luminescence properties. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Zito CA, Perfecto TM, Dippel AC, Volanti DP, Koziej D. Low-Temperature Carbon Dioxide Gas Sensor Based on Yolk-Shell Ceria Nanospheres. ACS APPLIED MATERIALS & INTERFACES 2020; 12:17745-17751. [PMID: 32250100 DOI: 10.1021/acsami.0c01641] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Monitoring carbon dioxide (CO2) levels is extremely important in a wide range of applications. Although metal oxide-based chemoresistive sensors have emerged as a promising approach for CO2 detection, the development of efficient CO2 sensors at low temperature remains a challenge. Herein, we report a low-temperature hollow nanostructured CeO2-based sensor for CO2 detection. We monitor the changes in the electrical resistance after CO2 pulses in a relative humidity of 70% and show the high performance of the sensor at 100 °C. The yolk-shell nanospheres have not only 2 times higher sensitivity but also significantly increased stability and reversibility, faster response times, and greater CO2 adsorption capacity than commercial ceria nanoparticles. The improvements in the CO2 sensing performance are attributed to hollow and porous structure of the yolk-shell nanoparticles, allowing for enhanced gas diffusion and high specific surface area. We present an easy strategy to enhance the electrical and sensing properties of metal oxides at a low operating temperature that is desirable for practical applications of CO2 sensors.
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Affiliation(s)
- Cecilia A Zito
- Laboratory of Materials for Sustainability (LabMatSus), São Paulo State University (UNESP), Rua Cristóvão Colombo 2265, 15054000 São José do Rio Preto, Brazil
- Center for Hybrid Nanostructures (CHyN), Institute of Nanostructure and Solid State Physics, University of Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany
| | - Tarcísio M Perfecto
- Laboratory of Materials for Sustainability (LabMatSus), São Paulo State University (UNESP), Rua Cristóvão Colombo 2265, 15054000 São José do Rio Preto, Brazil
| | - Ann-Christin Dippel
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Diogo P Volanti
- Laboratory of Materials for Sustainability (LabMatSus), São Paulo State University (UNESP), Rua Cristóvão Colombo 2265, 15054000 São José do Rio Preto, Brazil
| | - Dorota Koziej
- Center for Hybrid Nanostructures (CHyN), Institute of Nanostructure and Solid State Physics, University of Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany
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13
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Mai Z, Li H, Gao Y, Niu Y, Li Y, de Rooij NF, Umar A, Al-Assiri MS, Wang Y, Zhou G. Synergy of CO 2-response and aggregation induced emission in a small molecule: renewable liquid and solid CO 2 chemosensors with high sensitivity and visibility. Analyst 2020; 145:3528-3534. [PMID: 32190881 DOI: 10.1039/d0an00189a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A tetraphenylethylene (TPE) derivative (N,N-dimethyl-N'-(4-(1,2,2-triphenylvinyl)phenyl)acetimidamide, TPE-amidine) was designed and synthesized, and used to prepare visible CO2 chemosensors, TPE-amidine-L (liquid) and TPE-amidine-S (solid). The hydrophilicity of TPE-amidine thoroughly changed because of the unique reversible reaction between the amidine group and CO2, which controlled the molecular aggregation extent in water by CO2. Combining with the well-known aggregate-induced emission effect, the highly selective CO2 chemosensor TPE-amidine-L was developed, which has the lowest CO2 detection limit of 24.6 ppm compared with other reported CO2 chemosensors, and can be regenerated within 10 s by adding triethylamine. With the aim of being safer and more convenient to use, a polyacrylamide hydrogel containing TPE-amidine was prepared as a renewable CO2 sensing "tape" (TPE-amidine-S). The flexibility, adhesivity, CO2 sensitivity and reversibility of the "tape" is systematically investigated, showing great potential for "on-site" and "real-time" CO2 detection in practical applications.
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Affiliation(s)
- Zhijian Mai
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China.
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14
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Rebber M, Willa C, Koziej D. Organic-inorganic hybrids for CO 2 sensing, separation and conversion. NANOSCALE HORIZONS 2020; 5:431-453. [PMID: 32118212 DOI: 10.1039/c9nh00380k] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Motivated by the air pollution that skyrocketed in numerous regions around the world, great effort was placed on discovering new classes of materials that separate, sense or convert CO2 in order to minimise impact on human health. However, separation, sensing and conversion are not only closely intertwined due to the ultimate goal of improving human well-being, but also because of similarities in material prerequisites -e.g. affinity to CO2. Partly inspired by the unrivalled performance of complex natural materials, manifold inorganic-organic hybrids were developed. One of the most important characteristics of hybrids is their design flexibility, which results from the combination of individual constituents with specific functionality. In this review, we discuss commonly used organic, inorganic, and inherently hybrid building blocks for applications in separation, sensing and catalytic conversion and highlight benefits like durability, activity, low-cost and large scale fabrication. Moreover, we address obstacles and potential future developments of hybrid materials. This review should inspire young researchers in chemistry, physics and engineering to identify and overcome interdisciplinary research challenges by performing academic research but also - based on the ever-stricter emission regulations like carbon taxes - through exchanges between industry and science.
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Affiliation(s)
- Matthias Rebber
- University of Hamburg, Institute for Nanostructure and Solid State Physics, Center for Hybrid Nanostructures (CHyN), Luruper Chaussee 149, Building 600, 22761 Hamburg, Germany.
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15
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Joshi S, Jones LA, Sabri YM, Bhargava SK, Sunkara MV, Ippolito SJ. Facile conversion of zinc hydroxide carbonate to CaO-ZnO for selective CO 2 gas detection. J Colloid Interface Sci 2020; 558:310-322. [PMID: 31605933 DOI: 10.1016/j.jcis.2019.09.103] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/20/2019] [Accepted: 09/27/2019] [Indexed: 12/21/2022]
Abstract
Tailored synthesis of heterostructures for low temperature (sub 200 °C) CO2 sensing continues to be a challenging task. The present study demonstrates CO2 sensing characteristics of CaO-ZnO heterostructures achieved by zinc hydroxide carbonate (Zn5(CO3)2(OH)6) conversion to ZnO using Ca(OH)2 at 50 °C. Control samples namely, Zn5(CO3)2(OH)6, Ca(OH)2, ZnO, and CaO integrated microsensors exhibited low sensitivity towards CO2 gas. However, CaO-ZnO heterostructures demonstrated significant sensitivity (26 to 91%) at 150 °C for gas concentration ranging from 100 to 10000 ppm, respectively. In this study, zinc hydroxide carbonate sensitized with 25 wt% Ca(OH)2 to form CaO-ZnO heterostructures (25CaZMS) displayed a promising sensitivity (77%) and selectivity (98%) towards 500 ppm CO2 gas. Moreover, the selectivity studies were conducted in the presence of 10 commonly found gases and their sensing performance was compared against CO2 gas in dry and humid conditions. The developed CaO-ZnO sensor exhibited faster kinetics in comparison to the control samples. Improved sensing performance observed here is attributed to the low-temperature synthesis route which resulted in a large number of active pores and high surface area morphology. Additionally, the high CO2 adsorption capacity of CaO combined with compatible n-type semiconductors in forming highly dynamic nano-interfaced heterostructure is a promising step towards developing a precise CO2 gas microsensor.
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Affiliation(s)
- Shravanti Joshi
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, College of Science, Engineering & Health, RMIT University, 124 La Trobe Street, Melbourne, Victoria 3001, Australia; Nanomaterials Laboratory, Inorganic & Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, IICT Colony, Tarnaka, Hyderabad, Telagana 500007, India
| | - Lathe A Jones
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, College of Science, Engineering & Health, RMIT University, 124 La Trobe Street, Melbourne, Victoria 3001, Australia
| | - Ylias M Sabri
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, College of Science, Engineering & Health, RMIT University, 124 La Trobe Street, Melbourne, Victoria 3001, Australia
| | - Suresh K Bhargava
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, College of Science, Engineering & Health, RMIT University, 124 La Trobe Street, Melbourne, Victoria 3001, Australia
| | - Manorama V Sunkara
- Nanomaterials Laboratory, Inorganic & Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, IICT Colony, Tarnaka, Hyderabad, Telagana 500007, India.
| | - Samuel J Ippolito
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, College of Science, Engineering & Health, RMIT University, 124 La Trobe Street, Melbourne, Victoria 3001, Australia; School of Engineering, Electrical and Bio-medical Engineering, RMIT University, Melbourne, Victoria 3001, Australia.
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16
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Shinde PV, Shinde NM, Shaikh SF, Lee D, Yun JM, Woo LJ, Al-Enizi AM, Mane RS, Kim KH. Room-temperature synthesis and CO 2-gas sensitivity of bismuth oxide nanosensors. RSC Adv 2020; 10:17217-17227. [PMID: 35693914 PMCID: PMC9122568 DOI: 10.1039/d0ra00801j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 04/12/2020] [Indexed: 11/21/2022] Open
Abstract
Room-temperature (27 °C) synthesis and carbon dioxide (CO2)-gas-sensor applications of bismuth oxide (Bi2O3) nanosensors obtained via a direct and superfast chemical-bath-deposition method (CBD) with different surface areas and structures, i.e., crystallinities and morphologies including a woollen globe, nanosheet, rose-type, and spongy square plate on a glass substrate, are reported. Moprhologies of the Bi2O3 nanosensors are tuned through polyethylene glycol, ethylene glycol, and ammonium fluoride surfactants. The crystal structure, type of crystallinity, and surface appearance are determined from the X-ray diffraction patterns, X-ray photoelectron spectroscopy spectra, and high-resolution transmission electron microscopy images. The room-temperature gas-sensor applications of these Bi2O3 nanosensors for H2, H2S, NO2, SO2, and CO2 gases are monitored from 10 to 100 ppm concentrations, wherein Bi2O3 nanosensors of different physical properties demonstrate better performance and response/recovery time measurement for CO2 gas than those for the other target gases employed. Among various sensor morphologies, the nanosheet-type Bi2O3 sensor has exhibited at 100 ppm concentration of CO2 gas, a 179% response, 132 s response time, and 82 s recovery time at room-temperature, which is credited to its unique surface morphology, high surface area, and least charge transfer resistance. This suggests that the importance of the surface morphology, surface area, and crystallinity of the Bi2O3 nanosensors used for designing room-temperature operable CO2 gas sensors for commercial benefits. Room-temperature (27 °C) synthesis and carbon dioxide (CO2)-gas-sensing applications of bismuth oxide (Bi2O3) nanosensors obtained via a direct and superfast chemical-bath-deposition method (CBD) with different surface areas and structures.![]()
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Affiliation(s)
- Pritamkumar V. Shinde
- Global Frontier R&D Centre for Hybrid Interface Materials
- Pusan National University
- Busan 609-735
- Republic of Korea
| | - Nanasaheb M. Shinde
- National Core Research Centre
- Pusan National University
- Busan 609-735
- Republic of Korea
| | | | - Damin Lee
- School of Materials Science and Engineering
- Pusan National University
- Busan 609-735
- Republic of Korea
| | - Je Moon Yun
- National Core Research Centre
- Pusan National University
- Busan 609-735
- Republic of Korea
| | - Lee Jung Woo
- School of Materials Science and Engineering
- Pusan National University
- Busan 609-735
- Republic of Korea
| | - Abdullah M. Al-Enizi
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- Saudi Arabia
| | - Rajaram S. Mane
- Global Frontier R&D Centre for Hybrid Interface Materials
- Pusan National University
- Busan 609-735
- Republic of Korea
- School of Physical Sciences
| | - Kwang Ho Kim
- Global Frontier R&D Centre for Hybrid Interface Materials
- Pusan National University
- Busan 609-735
- Republic of Korea
- National Core Research Centre
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17
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Manikandan V, Petrila I, Vigneselvan S, Mane RS, Vasile B, Dharmavarapu R, Lundgaard S, Juodkazis S, Chandrasekaran J. A reliable chemiresistive sensor of nickel-doped tin oxide (Ni-SnO2) for sensing carbon dioxide gas and humidity. RSC Adv 2020; 10:3796-3804. [PMID: 35492623 PMCID: PMC9048456 DOI: 10.1039/c9ra09579a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 12/26/2019] [Indexed: 11/21/2022] Open
Abstract
Herein, we report the chemiresistive gas and humidity sensing properties of pristine and nickel-doped tin oxide (Ni-SnO2) gas sensors prepared by a microwave-assisted wet chemical method. The structural and optical properties are characterised using X-ray diffraction, scanning electron microscopy, scanning transmission electron microscopy, ultraviolet spectroscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The structural elucidation and morphology analyses confirm a particle size of 32–46 nm, tetragonal rutile crystal structure and small cauliflower-type surface appearance. Nickel doping can tune the structure of NPs and morphology. The tested carbon dioxide gas and humidity sensing properties reveal a rapid sensing performance with high-to-moderate sensitivity. Also, the materials favour gas sensing because their sensitivity is enhanced with the increase in nickel concentration. The sensing results suggest that nickel is a vibrant metal additive to increase the gas sensitivity of the sensor. However, nickel doping decreases the electron density and increases the oxygen vacancies. Ultimately, the gas sensor produces highly rapid sensing with a response time of 4 s. Herein, we report the chemiresistive gas and humidity sensing properties of pristine and nickel-doped tin oxide (Ni-SnO2) gas sensors prepared by a microwave-assisted wet chemical method.![]()
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Affiliation(s)
- V. Manikandan
- Department of Physics
- Kongunadu Arts and Science College
- Coimbatore – 641 029
- India
| | - Iulian Petrila
- Faculty of Automatic Control and Computer Engineering
- Gheorghe Asachi Technical University of Iasi
- 700050 Iasi
- Romania
| | - S. Vigneselvan
- Department of Physics
- Government College of Technology
- Coimbatore – 641 013
- India
| | - R. S. Mane
- Center for Nanomaterial & Energy Devices
- Swami Ramanand Teerth Marathwada University
- Nanded-431606
- India
| | - Bogdan Vasile
- University Politehnica of Bucharest
- 011061 Bucharest
- Romania
| | | | - Stefan Lundgaard
- Center of Micro-Photonics
- Swinburne University of Technology
- Australia
| | - Saulius Juodkazis
- Center of Micro-Photonics
- Swinburne University of Technology
- Australia
| | - J. Chandrasekaran
- Department of Physics
- Sri Ramakrishna Mission Vidyalaya College of Arts and Science
- Coimbatore 641 020
- India
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18
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Stassen I, Dou JH, Hendon C, Dincă M. Chemiresistive Sensing of Ambient CO 2 by an Autogenously Hydrated Cu 3(hexaiminobenzene) 2 Framework. ACS CENTRAL SCIENCE 2019; 5:1425-1431. [PMID: 31482125 PMCID: PMC6716125 DOI: 10.1021/acscentsci.9b00482] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Indexed: 05/04/2023]
Abstract
A growing demand for indoor atmosphere monitoring relies critically on the ability to reliably and quantitatively detect carbon dioxide. Widespread adoption of CO2 sensors requires vastly improved materials and approaches because selective sensing of CO2 under ambient conditions, where relative humidity (RH) and other atmosphere contaminants provide a complex scenario, is particularly challenging. This report describes an ambient CO2 chemiresistor platform based on nanoporous, electrically conducting two-dimensional metal-organic frameworks (2D MOFs). The CO2 chemiresistive sensitivity of 2D MOFs is attained through the incorporation of imino-semiquinonate moieties, i.e., well-defined N-heteroatom functionalization. The best performance is obtained with Cu3(hexaiminobenzene)2, Cu3HIB2, which shows selective and robust ambient CO2 sensing properties at practically relevant levels (400-2500 ppm). The observed ambient CO2 sensitivity is nearly RH-independent in the range 10-80% RH. Cu3HIB2 shows higher sensitivity over a broader RH range than any other known chemiresistor. Characterization of the CO2-MOF interaction through a combination of in situ optical spectroscopy and density functional theory calculations evidence autogenously generated hydrated adsorption sites and a charge trapping mechanism as responsible for the intriguing CO2 sensing properties of Cu3HIB2.
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Affiliation(s)
- Ivo Stassen
- Massachusetts Institute
of Technology, Department of Chemistry, Cambridge, Massachusetts 02139, United States
| | - Jin-Hu Dou
- Massachusetts Institute
of Technology, Department of Chemistry, Cambridge, Massachusetts 02139, United States
| | - Christopher Hendon
- University of Oregon, Department of Chemistry
and Biochemistry, Eugene, Oregon 97401, United
States
| | - Mircea Dincă
- Massachusetts Institute
of Technology, Department of Chemistry, Cambridge, Massachusetts 02139, United States
- E-mail:
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19
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Li HJ, Mellerup SK, Wang X, Wang S. Impact of intramolecular H bond and n-π* interactions on photophysical and CO2 sensing properties of laterally appended D-π-A triarylboron compounds. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Tchalala MR, Belmabkhout Y, Adil K, Chappanda KN, Cadiau A, Bhatt PM, Salama KN, Eddaoudi M. Concurrent Sensing of CO 2 and H 2O from Air Using Ultramicroporous Fluorinated Metal-Organic Frameworks: Effect of Transduction Mechanism on the Sensing Performance. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1706-1712. [PMID: 30525415 DOI: 10.1021/acsami.8b18327] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Conventional materials for gas/vapor sensing are limited to a single probe detection ability for specific analytes. However, materials capable of concurrent detection of two different probes in their respective harmful levels and using two types of sensing modes have yet to be explored. In particular, the concurrent detection of uncomfortable humidity levels and CO2 concentration (400-5000 ppm) in confined spaces is of extreme importance in a great variety of fields, such as submarine technology, aerospace, mining, and rescue operations. Herein, we report the deliberate construction and performance assessment of extremely sensitive sensors using an interdigitated electrode (IDE)-based capacitor and a quartz crystal microbalance (QCM) as transducing substrates. The unveiled sensors are able to simultaneously detect CO2 within the 400-5000 ppm range and relative humidity levels below 40 and above 60%, using two fluorinated metal-organic frameworks, namely, NbOFFIVE-1-Ni and AlFFIVE-1-Ni, fabricated as a thin film. Their subtle difference in a structure-adsorption relationship for H2O and CO2 was analyzed to unveil the corresponding structure-sensing property relationships using both QCM- and IDE-based sensing modes.
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21
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Li Y, Tian C, Liu W, Xu S, Xu Y, Cui R, Lin Z. Carbon Cloth Supported Nano-Mg(OH) 2 for the Enrichment and Recovery of Rare Earth Element Eu(III) From Aqueous Solution. Front Chem 2018; 6:118. [PMID: 29721492 PMCID: PMC5915470 DOI: 10.3389/fchem.2018.00118] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 03/30/2018] [Indexed: 12/04/2022] Open
Abstract
Nano-Mg(OH)2 is attracting great attention as adsorbent for pre-concentration and recovery of rare earth elements (REEs) from low-concentration solution, due to its superior removal efficiency for REEs and environmental friendliness. However, the nanoparticles also cause some severe problems during application, including aggregation, blockage in fixed-bed column, as well as the difficulties in separation and reuse. Herein, in order to avoid the mentioned problems, a carbon cloth (CC) supported nano-Mg(OH)2 (nano-Mg(OH)2@CC) was synthesized by electrodeposition. The X-ray diffraction and scanning electron microscopy analysis demonstrated that the interlaced nano-sheet of Mg(OH)2 grew firmly and uniformly on the surface of carbon cloth fibers. Batch adsorption experiments of Eu(III) indicated that the nano-Mg(OH)2@CC composite maintained the excellent adsorption performance of nano-Mg(OH)2 toward Eu(III). After adsorption, the Eu containing composite was calcined under nitrogen atmosphere. The content of Eu2O3 in the calcined material was as high as 99.66%. Fixed-bed column experiments indicated that no blockage for Mg(OH)2@CC composite was observed during the treatment, while the complete blockage of occurred to nano-Mg(OH)2 at an effluent volume of 240 mL. Moreover, the removal efficiency of Mg(OH)2@CC was still higher than 90% until 4,200 mL of effluent volume. This work provides a promising method for feasible application of nanoadsorbents in fixed-bed process to recycle low-concentration REEs from wastewater.
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Affiliation(s)
- Yinong Li
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Chen Tian
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Weizhen Liu
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Si Xu
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Yunyun Xu
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Rongxin Cui
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Zhang Lin
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
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22
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Khan S, Narula AK. Synthesis of a bimetallic conducting nano-hybrid composite of Au–Pt@PEDOT exhibiting fluorescence. NEW J CHEM 2018. [DOI: 10.1039/c7nj04298a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
One pot novel synthesis of ternary nanocomposite Au–Pt@PEDOT was accomplished using green solvent.
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Affiliation(s)
- Salma Khan
- Molecular Chemistry Laboratory
- University School of Basic and Applied Sciences
- Guru Gobind Singh Indraprastha University
- Delhi-110078
- India
| | - A. K. Narula
- Molecular Chemistry Laboratory
- University School of Basic and Applied Sciences
- Guru Gobind Singh Indraprastha University
- Delhi-110078
- India
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