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Yang Y, Wu G, Jiang J, Zhang W, Liu S, Yu R, Liu F, Du A, Dai L, Mao X, Qin Q. Stabilization of Cu δ+ Sites Within MnO 2 for Superior Urea Electro-Synthesis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2409697. [PMID: 39221670 DOI: 10.1002/adma.202409697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2024] [Revised: 08/23/2024] [Indexed: 09/04/2024]
Abstract
Electrocatalytic C-N coupling between NO3 - and CO2 has emerged as a sustainable route for urea production. However, identifying catalytic active sites and designing efficient electrocatalysts remain significant challenges. Herein, the synthesis of Cu-doped MnO2 nanotube (denoted as Cu-MnO2) with stable Cuδ+-oxygen vacancies (Ovs)-Mn3+ dual sites is reported. Compared with pure MnO2, Cuδ+ doping can effectively enhance urea production performance in the co-reduction of CO2 and NO3 -. Thus, Cu-MnO2 catalyst exhibits a maximum Faradaic efficiency (FE) of 54.7% and the highest yield rate of 116.7 mmol h-1 gcat. -1 in a flow cell. Remarkably, the urea yield rate remains over 78 mmol h-1 gcat. -1 across a wide potential range. Further experimental and theoretical results elucidate the unique role of Cu-MnO2 solid-solution for stabilizing Cuδ+ sites in Cuδ+-Ovs-Mn3+, endowing the catalyst with superior structural and electrochemical stabilities. This thermodynamically promotes urea formation and kinetically lowers the energy barrier of C-N coupling.
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Affiliation(s)
- Yidong Yang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
| | - Guanzheng Wu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
| | - Jiadi Jiang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
| | - Wuyong Zhang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Qianwan Institute of CNITECH, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China
| | - Sijia Liu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
| | - Rui Yu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
| | - Fukang Liu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
| | - Aijun Du
- School of Chemistry and Physics and Centre for Material Science, Faculty of Science, Queensland University of Technology, Gardens Point Campus, Brisbane, QLD, 4001, Australia
| | - Lei Dai
- Key Laboratory for Special Functional Materials of Ministry of Education, School of Materials Science and Engineering, Academy for Advanced Interdisciplinary Studies, Henan University, Kaifeng, 475004, P. R. China
| | - Xin Mao
- School of Chemistry and Physics and Centre for Material Science, Faculty of Science, Queensland University of Technology, Gardens Point Campus, Brisbane, QLD, 4001, Australia
| | - Qing Qin
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
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Mohamed NA. Synthesis, characterization and evaluation of in vitro potential antimicrobial efficiency of new chitosan hydrogels and their CuO nanocomposites. Int J Biol Macromol 2024; 276:133810. [PMID: 39004245 DOI: 10.1016/j.ijbiomac.2024.133810] [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: 03/25/2024] [Revised: 07/06/2024] [Accepted: 07/09/2024] [Indexed: 07/16/2024]
Abstract
The phenomenon of microbial resistance and its resulting biofilms to traditional antibiotics is worsening over time. Therefore, the discovery of alternative substances that inhibit microbial activities through mechanisms different from those of known antibiotics requires attention. So, chitosan was crosslinked using different amounts of oxalyl dihydrazide yielding four novel hydrogels; ODHCs-I, ODHCs-II, ODHCs-III, and ODHCs-IV of crosslinking degree 12.17, 20.67, 31.67, and 43.17, respectively. Different amounts of CuO nanoparticles were impregnated into ODHCs-IV, obtaining ODHCs-IV/CuONPs-1 %, ODHCs-IV/CuONPs-3 % and ODHCs-IV/CuONPs-5 % composites. Their structure was emphasized using FTIR, SEM, XRD, TEM, EDX and elemental analysis. Their in vitro antimicrobial and anti-biofilm activities improved with increasing ODH and CuONPs content. ODHCs-IV exhibited minimal inhibition concentration (2 μg/mL) against S. pyogenes that was much lower than Vancomycin (3.9 μg/mL). ODHCs-IV/CuONPs-5 % displayed better inhibition performance than Vancomycin and Amphotericin B against Gram-positive-bacteria and fungi, respectively, and comparable one to that of Vancomycin against Gram-negative-bacteria. ODHCs-IV/CuONPs-5 % displayed much lower minimal biofilm inhibition concentrations (1.95 to 3.9 μg/mL) as compared with those of ODHCs-IV (7.81 and 15.63 μg/mL), against C. albicans, S. pyogenes, and K. pneumonia. ODHCs-IV/CuONPs-5 % composite is safe on normal human cells. Oxalyl dihydrazide and CuONPs amalgamated into chitosan in one formulation promoted its antimicrobial efficiency.
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Affiliation(s)
- Nadia A Mohamed
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia; Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt.
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Kim KB, Sohn MS, Min S, Yoon JW, Park JS, Li J, Moon YK, Kang YC. Highly Selective and Reversible Detection of Simulated Breath Hydrogen Sulfide Using Fe-Doped CuO Hollow Spheres: Enhanced Surface Redox Reaction by Multi-Valent Catalysts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308963. [PMID: 38461524 DOI: 10.1002/smll.202308963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/19/2024] [Indexed: 03/12/2024]
Abstract
The precise and reversible detection of hydrogen sulfide (H2S) at high humidity condition, a malodorous and harmful volatile sulfur compound, is essential for the self-assessment of oral diseases, halitosis, and asthma. However, the selective and reversible detection of trace concentrations of H2S (≈0.1 ppm) in high humidity conditions (exhaled breath) is challenging because of irreversible H2S adsorption/desorption at the surface of chemiresistors. The study reports the synthesis of Fe-doped CuO hollow spheres as H2S gas-sensing materials via spray pyrolysis. 4 at.% of Fe-doped CuO hollow spheres exhibit high selectivity (response ratio ≥ 34.4) over interference gas (ethanol, 1 ppm) and reversible sensing characteristics (100% recovery) to 0.1 ppm of H2S under high humidity (relative humidity 80%) at 175 °C. The effect of multi-valent transition metal ion doping into CuO on sensor reversibility is confirmed through the enhancement of recovery kinetics by doping 4 at.% of Ti- or Nb ions into CuO sensors. Mechanistic details of these excellent H2S sensing characteristics are also investigated by analyzing the redox reactions and the catalytic activity change of the Fe-doped CuO sensing materials. The selective and reversible detection of H2S using the Fe-doped CuO sensor suggested in this work opens a new possibility for halitosis self-monitoring.
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Affiliation(s)
- Ki Beom Kim
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Myung Sung Sohn
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sunhong Min
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Ji-Wook Yoon
- Department of Information Materials Engineering, Division of Advanced Materials Engineering, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Jin-Sung Park
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ju Li
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Young Kook Moon
- Department of Functional Ceramics, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Yun Chan Kang
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
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Moeini F, Doudi M, Karvani ZE, Fouladgar M. Biosorption of copper, nickel, and manganese as well as the production of metal nanoparticles by Bacillus species isolated from soils contaminated with electronic wastes. Braz J Microbiol 2024:10.1007/s42770-024-01369-z. [PMID: 38842788 DOI: 10.1007/s42770-024-01369-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 05/01/2024] [Indexed: 06/07/2024] Open
Abstract
Improper electronic waste management in the world especially in developing countries such as Iran has resulted in environmental pollution. Copper, nickel, and manganese are from the most concerned soil contaminating heavy metals which found in many electronic devices that are not properly processed. The aim of this study was to investigate the biological removal of copper, nickel, and manganese by Bacillus species isolated from a landfill of electronic waste (Zainal Pass hills located in Isfahan, Iran) which is the and to produce nanoparticles from the studied metals by the isolated bacteria. The amounts of copper, nickel, and manganese in the soil was measured as 1.9 × 104 mg/kg, 0.011 × 104 mg/kg and 0.013 × 104 mg/kg, respectively based on ICP-OES analysis, which was significantly higher than normal (0.02 mg/kg, 0.05 mg/kg, and 2 mg/kg, respectively. The minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) of metals on the bacterial isolates was determined. The biosorption of metals by the bacteria was evaluated by inductively coupled plasma optical emission spectroscopy (ICP-OES). The metal nanoparticles were synthetized utilizing the isolates in culture media containing the heavy metals with the concentrations to which the isolates had shown resistance. X ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS) were used for the evaluation of the fabrication of the produced metal nanoparticles. Based on the findings of this study, a total of 15 bacterial isolates were obtained from the soil samples. The obtained MICs of copper, nickel, and manganese on the isolates were 40-300 mM, 4-10 mM, and 60-120 mM, respectively. The most resistant isolates to copper were FM1 and FM2 which were able to bio-remove 79.81% and 68.69% of the metal, respectively. FM4 and FM5 were respectively the most resistant isolate to nickel and manganese and were able to bio-remove 86.74% and 91.96% of the metals, respectively. FM1, FM2, FM4, and FM5 was molecularly identified as Bacillus cereus, Bacillus thuringiensis, Bacillus paramycoides, and Bacillus wiedmannii, respectively. The results of XRD, SEM and EDS showed conversion of the copper and manganese into spherical and oval nanoparticles with the approximate sizes of 20-40 nm. Due to the fact that the novel strains in this study showed high resistance to copper, nickel, and manganese and high adsorption of the metals, they can be used in the future, as suitable strains for the bio-removal of these metals from electronic and other industrial wastes.
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Affiliation(s)
- Fateme Moeini
- Department of Microbiology, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Monir Doudi
- Department of Microbiology, Falavarjan Branch, Islamic Azad University, Isfahan, Iran.
| | | | - Masoud Fouladgar
- Department of Biochemistry, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
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Haque S, Wang D, Ergul B, Basurrah A, Karabacak T. Effect of sandblasting and acid surface pretreatment on the specific capacitance of CuO nanostructures grown by hot water treatment for supercapacitor electrode applications. NANOTECHNOLOGY 2024; 35:335403. [PMID: 38759634 DOI: 10.1088/1361-6528/ad4cf7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 05/17/2024] [Indexed: 05/19/2024]
Abstract
Crystalline copper oxide (CuO) nanostructures with micro, nano, and micro-nano surface roughness were grown on Cu sheet substrates by a facile, scalable, low-cost, and low-temperature hot water treatment (HWT) method that simply involved immersing Cu sheet in DI water at 75 °C for 24 h without any chemical additives. Various morphological features and sizes of CuO nanostructures were tuned by using different surface pretreatment techniques including acid treatment, sandblasting, or a combination of those two. The surface morphology of the prepared samples was analyzed by scanning electron microscopy. The crystal structure of the CuO nanostructures was investigated by x-ray diffraction XRD and Raman spectroscopy. To study the pseudocapacitive behavior, their potential supercapacitor performance, and equivalent series resistance, electrochemical analysis was done by cyclic voltammetry and electrochemical impedance spectroscopy for all the CuO/Cu samples in 1 M of Na2SO4electrolyte. Among all, the best supercapacitive performance was achieved for CuO/Cu samples pretreated with Sandblasting followed by Acid treatment resulting in a specific capacitance of about 104 F g-1. The electrode with the sandblasted + acid pretreated sample showed a maximum of ∼69% capacitive retention after 2000 consecutive cycles. Our results indicate that CuO nanostructures on Cu substrates prepared with different surface pretreatment conditions and grown by HWT can be promising electrodes for supercapacitor device applications.
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Affiliation(s)
- Shanzida Haque
- University of Arkansas at Little Rock, School of Physical Sciences, Little Rock, AR 72204, United States of America
- Department of Physics, Comilla University, Cumilla, Bangladesh
| | - Daoyuan Wang
- Department of Chemistry and Physics, University of Arkansas at Pine Bluff, Pine Bluff, AR 71601, United States of America
| | - Busra Ergul
- University of Arkansas at Little Rock, School of Physical Sciences, Little Rock, AR 72204, United States of America
| | - Assem Basurrah
- University of Arkansas at Little Rock, School of Physical Sciences, Little Rock, AR 72204, United States of America
- Department of Chemistry at Khulais, University of Jeddah, Jeddah, Saudi Arabia
| | - Tansel Karabacak
- University of Arkansas at Little Rock, School of Physical Sciences, Little Rock, AR 72204, United States of America
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Yang B, To DTH, Resendiz Mendoza E, Myung NV. Achieving One Part Per Billion Hydrogen Sulfide (H 2S) Level Detection through Optimizing Composition and Crystallinity of Gold-Decorated Tungsten Trioxide (Au-WO 3) Nanofibers. ACS Sens 2024; 9:292-304. [PMID: 38215726 DOI: 10.1021/acssensors.3c01979] [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: 01/14/2024]
Abstract
As a common environmental pollutant and an important breath biomarker for several diseases, it is essential to develop a hydrogen sulfide gas sensor with a low-ppb level detection limit to prevent harmful gas exposure and allow early diagnoses of diseases in low-resource settings. Gold doped/decorated tungsten trioxide (Au-WO3) nanofibers with various compositions and crystallinities were synthesized to optimize H2S-sensing performance. Systematically experimental results demonstrated the ability to detect 1 ppb H2S with a response value (Rair/Rgas) of 2.01 using a 5 at % Au-WO3 nanofibers with average grain sizes of around 15 nm. Additionally, energy barrier difference of sensing materials in air and nitrogen (ΔEb) and power law exponent (n) were determined to be 0.36 eV and 0.7, respectively, at 450 °C indicating that O- is predominately ionic oxygen species and adsorption of O- significantly altered the Schottky barrier between the grain. Such quantitative analysis provides a comprehensive understanding of H2S detection mechanism.
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Affiliation(s)
- Bingxin Yang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame 46556, Indiana, United States
| | - Dung Thi Hanh To
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame 46556, Indiana, United States
| | - Emily Resendiz Mendoza
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame 46556, Indiana, United States
| | - Nosang V Myung
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame 46556, Indiana, United States
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7
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Elmehbad NY, Mohamed NA, Abd El-Ghany NA, Abdel-Aziz MM. Evaluation of the in vitro anti-inflammatory and anti-Helicobacter pylori activities of chitosan-based biomaterials modified with copper oxide nanoparticles. Int J Biol Macromol 2023; 253:127277. [PMID: 37806410 DOI: 10.1016/j.ijbiomac.2023.127277] [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: 07/18/2023] [Revised: 10/01/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Abstract
For chemical modification, p-aminobenzoic acid was incorporated into chitosan Schiff base (ACsSB) and chitosan (ACs). Two ACs-based CuO nanoparticles composites; ACs/CuONPs-1 % and ACs/CuONPs-5 %, were also synthesized. Their structures were emphasized utilizing several analytical techniques; elemental analysis, FTIR, 1H NMR, XRD, SEM, EDX and TEM. Compared with standard cyclooxygenase (COX) inhibitor, Celecoxib, the prepared biomaterials showed in vitro selective inhibitory effectiveness against COX-2 enzyme that could be sorted, according to their MIC values that produce 50 % inhibition of COX-2 enzyme activity, as follows: Celecoxib (0.28 μg/mL) > ACs/CuONPs-5 % (4.1 μg/mL) > ACs/CuONPs-1 % (14.8 μg/mL) > ACs (38.5 μg/mL) > ACsSB (58.9 μg/mL) > chitosan (>125 μg/mL). Further, ACs/CuONPs-5 % has more in vitro inhibition efficiency towards Helicobacter pylori (H. pylori) than the other prepared biomaterials. Interestingly, the MIC value of 100 % growth inhibition of H. pylori for ACs/CuONP-5 % is equal to that of drug Clarithromycin (1.95 μg/mL). Thus, ACs/CuONPs-5 % has a promising potential as anti-H. pylori and selective anti-inflammatory agent. ACs/CuONPs-5 % is safe on the human gastric normal cells (GES-1). Therefore, amalgamation of both p-aminobenzoic acid and CuONPs into chitosan extremely promoted its anti-inflammatory and anti-H. pylori activity. This is a promising approach to achieve methods successful to compete the conventional antibiotics.
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Affiliation(s)
- Noura Y Elmehbad
- Department of Chemistry, Faculty of Science and Arts, Najran University, Najran, Saudi Arabia
| | - Nadia A Mohamed
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia; Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt.
| | - Nahed A Abd El-Ghany
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt.
| | - Marwa M Abdel-Aziz
- Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo 11651, Egypt
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Liu G, Xue Z, Zhang X, Liu Q, Kuang Y, He M, Xu J, Lv M, Xiu H, Zhai G, Liu D, Xia Y, Dai N, Dai M. Multifunctional Multigate One-Transistor with Thin Advanced Materials, Logic-in-Memory, and Artificial Synaptic Behaviors. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55957-55964. [PMID: 37992220 DOI: 10.1021/acsami.3c10366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
The high device density and fabrication complexity have hampered the development of the electronics. The advanced designs, which could implement the functions of the circuits with higher device density but less fabrication complexity, are hence required. Meanwhile, the MoS2-based devices have recently attracted considerable attention owing to their advantages such as the ultrathin thickness. However, the MoS2-based multifunctional multigate one-transistor (MGT) designs with logic-in-memory and artificial synaptic functions have rarely been reported. Here, an MGT structure based on the MoS2 channel is proposed, with both the logic-in-memory and artificial synaptic behaviors and with more controllable processes than the manual transfer. The proposed MoS2-based MGT functions could be attributed to the semijunction mechanism and enhanced effect of the additional terminals with improved controllability. This study is the first to demonstrate that the neuromorphic computing, logic gate, and memory functions can all be achieved in a MoS2 MGT device without using any additional layers or plasticity to a transistor. The reported results provide a new strategy for developing brain-like systems and next-generation electronics using multifunctional designs and ultrathin materials.
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Affiliation(s)
- Guanyi Liu
- Department of Spine Surgery, Ningbo No. 6 Hospital, 1059 Zhongshandong Road, Ningbo, Zhejiang 315040, People's Republic of China
| | - Zhibiao Xue
- Energy Division, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
- School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Xiaoyang Zhang
- Energy Division, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Qitao Liu
- Energy Division, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
| | - Yongbo Kuang
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- Energy Division, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
| | - Meng He
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China
| | - Ji Xu
- Energy Division, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
| | - Mingming Lv
- Energy Division, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
| | - Hao Xiu
- Energy Division, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
| | - Gangpeng Zhai
- Energy Division, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Deyu Liu
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- Energy Division, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
| | - Yang Xia
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China
| | - Ning Dai
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Mingzhi Dai
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- Energy Division, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China
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9
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Wawrzyniak J. Advancements in Improving Selectivity of Metal Oxide Semiconductor Gas Sensors Opening New Perspectives for Their Application in Food Industry. SENSORS (BASEL, SWITZERLAND) 2023; 23:9548. [PMID: 38067920 PMCID: PMC10708670 DOI: 10.3390/s23239548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/24/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023]
Abstract
Volatile compounds not only contribute to the distinct flavors and aromas found in foods and beverages, but can also serve as indicators for spoilage, contamination, or the presence of potentially harmful substances. As the odor of food raw materials and products carries valuable information about their state, gas sensors play a pivotal role in ensuring food safety and quality at various stages of its production and distribution. Among gas detection devices that are widely used in the food industry, metal oxide semiconductor (MOS) gas sensors are of the greatest importance. Ongoing research and development efforts have led to significant improvements in their performance, rendering them immensely useful tools for monitoring and ensuring food product quality; however, aspects related to their limited selectivity still remain a challenge. This review explores various strategies and technologies that have been employed to enhance the selectivity of MOS gas sensors, encompassing the innovative sensor designs, integration of advanced materials, and improvement of measurement methodology and pattern recognize algorithms. The discussed advances in MOS gas sensors, such as reducing cross-sensitivity to interfering gases, improving detection limits, and providing more accurate assessment of volatile organic compounds (VOCs) could lead to further expansion of their applications in a variety of areas, including food processing and storage, ultimately benefiting both industry and consumers.
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Affiliation(s)
- Jolanta Wawrzyniak
- Faculty of Food Science and Nutrition, Poznań University of Life Sciences, 60-624 Poznań, Poland
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10
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Ali SG, Haseen U, Jalal M, Khan RA, Alsalme A, Ahmad H, Khan HM. Green Synthesis of Copper Oxide Nanoparticles from the Leaves of Aegle marmelos and Their Antimicrobial Activity and Photocatalytic Activities. Molecules 2023; 28:7499. [PMID: 38005229 PMCID: PMC10673068 DOI: 10.3390/molecules28227499] [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: 09/11/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 11/26/2023] Open
Abstract
The leaves of the Aegle marmelos plant were used for the green synthesis of copper oxide nanoparticles and further characterized by different techniques, including (Ultra Violet-Visible) UV-Vis, Scanning electron microscopy (SEM), Energy dispersive X-ray (EDX), Transmission electron microscopy (TEM) and X-ray diffraction (XRD). The UV-Vis showed a peak at 330 nm, which may be due to the Surface Plasmon Resonance phenomenon. XRD analysis showed the crystalline nature of copper oxide nanoparticles (CuO NPs). In contrast, SEM showed that nanoparticles were not aggregated or clumped, EDX showed the presence of elemental copper., and further, the TEM analysis revealed the average particle size of copper oxide nanoparticles to be 32 nm. The Minimum Inhibitory Concentration (MIC) for Escherichia coli (E. coli) and Staphylococcusaureus (S. aureus) was found to be 400 µg/mL, whereas for Candida albicans (C. albicans) and Candida dubliniensis (C. dubliniensis) it was 800 µg/mL. The zone of inhibition in the well diffusion assay showed the antimicrobial activity of copper oxide nanoparticles, and it also showed that as the concentration of copper oxide nanoparticles increased, the zone of inhibition also increased. Further, the electron microscopic view of the interaction between copper oxide nanoparticles and C. albicans cells showed that CuO NPs were internalized and attached to the cell membrane, which caused changes in the cellular structure and caused deformities which eventually led to cell death. The prepared CuO NPs showed significant photocatalytic degradation of organic dyes in the presence of sunlight.
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Affiliation(s)
- Syed Ghazanfar Ali
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh 202002, India
| | - Uzma Haseen
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India
| | - Mohammad Jalal
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh 202002, India
| | - Rais Ahmad Khan
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ali Alsalme
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Hilal Ahmad
- SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, India
| | - Haris Manzoor Khan
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh 202002, India
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11
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Lin X, Tang J, Zhu C, Wang L, Yang Y, Wu R, Fan H, Liu C, Huang J. Solvent-mediated precipitating synthesis and optical properties of polyhydrido Cu 13 nanoclusters with four vertex-sharing tetrahedrons. Chem Sci 2023; 14:994-1002. [PMID: 36755712 PMCID: PMC9890966 DOI: 10.1039/d2sc06099j] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Structurally defined metal nanoclusters facilitate mechanism studies and promote functional applications. However, precisely constructing copper nanoclusters remains a long-standing challenge in nanoscience. Developing new efficient synthetic strategies for Cu nanoclusters is highly desirable. Here, we propose a solvent-mediated precipitating synthesis (SMPS) to prepare Cu13H10(SR)3(PPh3)7 nanoclusters (H-SR = 2-chloro-4-fluorobenzenethiol). The obtained Cu13 nanoclusters are high purity and high yield (39.5%, based on Cu atom), proving the superiority of the SMPS method. The Cu13 nanoclusters were comprehensively studied via a series of characterizations. Single crystal X-ray crystallography shows that the Cu13 nanoclusters contain a threefold symmetry axis and the Cu13 kernel is protected by a monolayer of ligands, including PPh3 and thiolates. Unprecedentedly, the aesthetic Cu13 kernel is composed of four vertex-sharing tetrahedrons, rather than the common icosahedral or cuboctahedral M13. The intramolecular π⋯π interactions between thiolates and PPh3 on the surface contribute to the stable configuration. Furthermore, electrospray ionization mass spectrometry (ESI-MS) and nuclear magnetic resonance (NMR) revealed the existence of ten hydrides, including four types of hydrides. Density functional theory (DFT) calculations without simplifying the ligands simulated the location of the 10 hydrides in the crystal structure. Additionally, the steady-state ultraviolet-visible absorption and fluorescence spectra of the Cu13 nanoclusters exhibit unique optical absorbance and photoluminescence. The ultrafast relaxation dynamics were also studied via transient absorption spectroscopy, and the three decay components are attributed to the relaxation pathways of internal conversion, structural relaxation and radiative relaxation. This work provides not only a novel SMPS strategy to efficiently synthesize Cu13 nanoclusters, but also a better insight into the structural characteristics and optical properties of the Cu nanoclusters.
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Affiliation(s)
- Xinzhang Lin
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Jie Tang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Chenyu Zhu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Li Wang
- Laboratory of High-Resolution Mass Spectrometry Technologies, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Yang Yang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ren'an Wu
- Laboratory of High-Resolution Mass Spectrometry Technologies, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Hongjun Fan
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Chao Liu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Jiahui Huang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
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12
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Shrestha S, Sapkota KP, Lee I, Islam MA, Pandey A, Gyawali N, Akter J, Mohan H, Shin T, Jeong S, Hahn JR. Carbon-Based Ternary Nanocomposite: Bullet Type ZnO-SWCNT-CuO for Substantial Solar-Driven Photocatalytic Decomposition of Aqueous Organic Contaminants. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248812. [PMID: 36557942 PMCID: PMC9784868 DOI: 10.3390/molecules27248812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/01/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022]
Abstract
A facile two-step synthesis of ternary hetero-composites of ZnO, CuO, and single-walled carbon nanotubes (SWCNTs) was developed through a recrystallization process followed by annealing. A series of nanocomposites were prepared by varying the weight ratio of copper(II) acetate hydrate and zinc(II) acetate dihydrate and keeping the weight ratio of SWCNTs constant. The results revealed the formation of heterojunctions (ZnO-SWCNT-CuO, ZSC) of three crystal structures adjacent to each other, forming a ternary wurtzite-structured nanoparticles along with defects. Enhanced charge separation (electron-hole pairs), reduced band gap, defect-enhanced specific surface area, and promoted oxidation potential were key factors for the enhanced photocatalytic activity of the ternary nanocomposites. OH• radicals were the main active species during dye degradation, and O2-• and h+ were also involved to a lesser extent. A type II heterojunction mechanism approach is proposed based on the charge carrier migration pattern. Among the synthesized nanocomposites, the sample prepared using copper(II) acetate hydrate and zinc(II) acetate dihydrate in a 1: 9 ratio (designated a ZSC3) showed the highest photocatalytic activity. ZSC3 achieved 99.2% photodecomposition of methylene blue in 20 min, 94.1% photodecomposition of Congo red in 60 min, and 99.6% photodecomposition of Rhodamine B in 40 min under simulated sunlight. Additionally, ZSC3 showed excellent reusability and stability, maintaining 96.7% of its activity even after five successive uses. Based on overall results, the ZSC sample was proposed as an excellent candidate for water purification applications.
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Affiliation(s)
- Santu Shrestha
- Department of Chemistry, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
- Department of Chemistry, Tribhuvan University, Amrit Campus, Kathmandu 44618, Nepal
| | - Kamal Prasad Sapkota
- Department of Chemistry, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
- Department of Chemistry, Tribhuvan University, Amrit Campus, Kathmandu 44618, Nepal
| | - Insup Lee
- Department of Chemistry, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Md Akherul Islam
- Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Anil Pandey
- Department of Chemistry, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
- Department of Chemistry, Tribhuvan University, Amrit Campus, Kathmandu 44618, Nepal
| | - Narayan Gyawali
- Department of Chemistry, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Jeasmin Akter
- Department of Chemistry, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Harshavardhan Mohan
- Department of Chemistry, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Taeho Shin
- Department of Chemistry, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Sukmin Jeong
- Department of Physics, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Jae Ryang Hahn
- Department of Chemistry, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
- Textile Engineering, Chemistry and Science, North Carolina State University, 2401 Research Dr., Raleigh, NC 27695, USA
- Correspondence: or
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13
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Enhanced electrical properties of CuO:CoO decorated with Sm2O3 nanostructure for high-performance supercapacitor. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05343-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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14
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Metal oxide nanofibers based chemiresistive H2S gas sensors. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Jung D, Hwang S, Kim HJ, Han JH, Lee HN. Characterization of Porous CuO Films for H 2S Gas Sensors. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7270. [PMID: 36295331 PMCID: PMC9610780 DOI: 10.3390/ma15207270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Using a thermal evaporator, various porous Cu films were deposited according to the deposition pressure. CuO films were formed by post heat treatment in the air. Changes in morphological and structural characteristics of films were analyzed using field-emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). Relative density and porosity were quantitatively calculated. CuO films with various pores ranging from 39.4 to 95.2% were successfully manufactured and were applied as gas sensors for H2S detection on interdigitated electrode (IDE) substrate. Resistance change was monitored at 325 °C and an increase in porosity of the film improved the sensor performance. The CuO-10 gas sensor with a high porosity of 95.2% showed a relatively high response (2.7) and a fast recovery time (514 s) for H2S 1.5 ppm. It is confirmed that the porosity of the CuO detection layer had a significant effect on response and recovery time.
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Affiliation(s)
- Dawoon Jung
- Heat & Surface Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Incheon 21999, Korea
- Department of Materials Science and Engineering, Gacheon University, Seongnam-si 13120, Korea
| | - Sehoon Hwang
- Heat & Surface Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Incheon 21999, Korea
| | - Hyun-Jong Kim
- Heat & Surface Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Incheon 21999, Korea
| | - Jae-Hee Han
- Department of Materials Science and Engineering, Gacheon University, Seongnam-si 13120, Korea
| | - Ho-Nyun Lee
- Heat & Surface Technology R&D Department, Korea Institute of Industrial Technology (KITECH), Incheon 21999, Korea
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16
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Khlifi N, Mnif S, Ben Nasr F, Fourati N, Zerrouki C, Chehimi MM, Guermazi H, Aifa S, Guermazi S. Non-doped and transition metal-doped CuO nano-powders: structure-physical properties and anti-adhesion activity relationship. RSC Adv 2022; 12:23527-23543. [PMID: 36090396 PMCID: PMC9386445 DOI: 10.1039/d2ra02433k] [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: 04/15/2022] [Accepted: 07/31/2022] [Indexed: 11/27/2022] Open
Abstract
Bacterial contamination and biofilm formation generate severe problems in many fields. Among these biofilm-forming bacteria, Staphylococcus epidermidis (S. epidermidis) has emerged as a major cause of nosocomial infection (NI). However, with the dramatic rise in resistance toward conventional antibiotics, there is a pressing need for developing effective anti-biofilms. So, fabrication of copper oxide nanoparticles (NPs) is one of the new strategies to combat biofilms. Notably, doped CuO NPs in anti-biofilm therapy have become a hot spot of attention in recent years due to their physicochemical properties. In this context, the present work deals with the investigation of undoped and transition metal (TM)-doped CuO NPs (TM = Zn, Ni, Mn, Fe and Co), synthesized via the co-precipitation method. The synthesized CuO NPs are characterized using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, field-emission scanning electron microscopy (FE-SEM), energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). Results consistently revealed the successful formation of CuO NPs using the co-precipitation method and confirmed that TM ions are successfully inserted into CuO crystal lattice. We found that doping changes the morphology of the CuO NPs and increases their crystallite size. The XPS results show a non-uniform distribution of the doping concentration, with a depletion or an enrichment of the NP surface depending on the element considered. Furthermore, the anti-adhesive potential of CuO NPs against S. epidermidis S61 biofilm formation is evaluated in this study by crystal violet and fluorescence microscopy assays. All synthesized NPs exhibit considerable anti-adhesive activity against S. epidermidis S61 biofilm. Interestingly, compared to undoped CuO, Fe and Ni-doped oxides show an improved activity when used at high concentrations, whereas Mn-doped CuO is the most efficient at low concentrations. This makes TM-doped CuO a promising candidate to be used in biomedical applications.
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Affiliation(s)
- N Khlifi
- Laboratory of Materials for Energy and Environment, and Modeling (LMEEM), Faculty of Sciences, University of Sfax B.P: 1171 3038 Tunisia
- Laboratory of Information and Energy Technology Systems and Applications (SATIE), UMR 8029, CNRS, ENS Paris-Saclay, CNAM 292 Rue Saint-Martin 7503 Paris France
| | - S Mnif
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax P.O. Box 1177 3018 Sfax Tunisia
| | - F Ben Nasr
- Laboratory of Materials for Energy and Environment, and Modeling (LMEEM), Faculty of Sciences, University of Sfax B.P: 1171 3038 Tunisia
| | - N Fourati
- Laboratory of Information and Energy Technology Systems and Applications (SATIE), UMR 8029, CNRS, ENS Paris-Saclay, CNAM 292 Rue Saint-Martin 7503 Paris France
| | - C Zerrouki
- Laboratory of Information and Energy Technology Systems and Applications (SATIE), UMR 8029, CNRS, ENS Paris-Saclay, CNAM 292 Rue Saint-Martin 7503 Paris France
| | - M M Chehimi
- Université Paris Cité, CNRS, ITODYS (UMR 7086) 75013 Paris France
| | - H Guermazi
- Laboratory of Materials for Energy and Environment, and Modeling (LMEEM), Faculty of Sciences, University of Sfax B.P: 1171 3038 Tunisia
| | - S Aifa
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax P.O. Box 1177 3018 Sfax Tunisia
| | - S Guermazi
- Laboratory of Materials for Energy and Environment, and Modeling (LMEEM), Faculty of Sciences, University of Sfax B.P: 1171 3038 Tunisia
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17
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Synthesis and H2S-Sensing Properties of MOF-Derived Cu-Doped ZnO Nanocages. NANOMATERIALS 2022; 12:nano12152579. [PMID: 35957008 PMCID: PMC9370557 DOI: 10.3390/nano12152579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 02/01/2023]
Abstract
Metal–organic framework (MOF)-derived pure ZnO and Cu-doped ZnO nanocages were fabricated by calcining a zeolitic imidazole framework (ZIF-8) and Cu-doped ZIF-8. The morphology and crystal structure of the samples were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM). It was found that Cu doping did not change the crystal structures and morphologies of MOF-derived ZnO nanocages. The H2S-sensing properties of the sensors based on ZnO and Cu-doped ZnO nanocages were investigated. The results indicated that the H2S-sensing properties of MOF-derived ZnO nanocages were effectively improved by Cu doping, and the optimal doping content was 3 at%. Moreover, 3 at% Cu-doped ZnO nanocages showed the highest response of 4733 for 5 ppm H2S at 200 °C, and the detection limit could be as low as 20 ppb. The gas-sensing mechanism was also discussed.
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18
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Navale S, Mirzaei A, Majhi SM, Kim HW, Kim SS. State-of-the-Art Research on Chemiresistive Gas Sensors in Korea: Emphasis on the Achievements of the Research Labs of Professors Hyoun Woo Kim and Sang Sub Kim. SENSORS (BASEL, SWITZERLAND) 2021; 22:61. [PMID: 35009604 PMCID: PMC8747108 DOI: 10.3390/s22010061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/06/2021] [Accepted: 12/17/2021] [Indexed: 12/19/2022]
Abstract
This review presents the results of cutting-edge research on chemiresistive gas sensors in Korea with a focus on the research activities of the laboratories of Professors Sang Sub Kim and Hyoun Woo Kim. The advances in the synthesis techniques and various strategies to enhance the gas-sensing performances of metal-oxide-, sulfide-, and polymer-based nanomaterials are described. In particular, the gas-sensing characteristics of different types of sensors reported in recent years, including core-shell, self-heated, irradiated, flexible, Si-based, glass, and metal-organic framework sensors, have been reviewed. The most crucial achievements include the optimization of shell thickness in core-shell gas sensors, decrease in applied voltage in self-heated gas sensors to less than 5 V, optimization of irradiation dose to achieve the highest response to gases, and the design of selective and highly flexible gas sensors-based WS2 nanosheets. The underlying sensing mechanisms are discussed in detail. In summary, this review provides an overview of the chemiresistive gas-sensing research activities led by the corresponding authors of this manuscript.
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Affiliation(s)
- Sachin Navale
- Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea; (S.N.); (S.M.M.)
- The Research Institute of Industrial Science, Hanyang University, Seoul 04763, Korea
- Department of Materials Science and Engineering, Inha University, Incheon 22212, Korea
| | - Ali Mirzaei
- Department of Materials Science and Engineering, Shiraz University of Technology, Shiraz 715557-13876, Iran;
| | - Sanjit Manohar Majhi
- Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea; (S.N.); (S.M.M.)
- The Research Institute of Industrial Science, Hanyang University, Seoul 04763, Korea
| | - Hyoun Woo Kim
- Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea; (S.N.); (S.M.M.)
- The Research Institute of Industrial Science, Hanyang University, Seoul 04763, Korea
| | - Sang Sub Kim
- Department of Materials Science and Engineering, Inha University, Incheon 22212, Korea
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19
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Abstract
H2S gas is a toxic and hazardous byproduct of the oil and gas industries. It paralyzes the olfactory nerves, with concentrations above 100 ppm, resulting in loss of smell; prolonged inhalation may even cause death. One of the most important semiconducting metal oxides for the detection of H2S is CuxO (x = 1, 2), which is converted to CuxS upon exposure to H2S, leading to a remarkable modulation in the resistance and appearance of an electrical sensing signal. In this review, various morphologies of CuxO in the pristine form, composites of CuxO with other materials, and decoration/doping of noble metals on CuxO nanostructures for the reliable detection of H2S gas are thoroughly discussed. With an emphasis to the detection mechanism of CuxO-based gas sensors, this review presents findings that are of considerable value as a reference.
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20
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Mokrushin AS, Gorban YM, Simonenko NP, Simonenko TL, Simonenko EP, Sevastyanov VG, Kuznetsov NT. Synthesis and Gas-Sensitive Chemoresistive Properties of TiO2:Cu Nanocomposite. RUSS J INORG CHEM+ 2021. [DOI: 10.1134/s0036023621040173] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Peng F, Yu W, Lu Y, Sun Y, Fu X, Hao JM, Chen X, Cong R, Dai N. Enhancement of Low-Temperature Gas-Sensing Performance Using Substoichiometric WO 3-x Modified with CuO. ACS APPLIED MATERIALS & INTERFACES 2020; 12:41230-41238. [PMID: 32804471 DOI: 10.1021/acsami.0c09213] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To verify the effect of oxygen vacancy on gas sensitivity, we have systematically investigated the gas-sensing performance of copper oxide/substoichiometric tungsten oxide (CuO/WO3-x) nanocomposite sensors. Oxygen deficiency in WO3-x facilitates the reaction of hydrogen sulfide (H2S) gas with chemisorbed oxygen species (i.e., O2-, O-, and O2-) at low temperature. The oxygen/sulphur exchange reaction between CuO and H2S in the sensing process can achieve room temperature operation of gas sensors. After the WO3-x nanorods were modified by a low content of CuO nanoparticles (Cu:W = 1:20), the sensors present an n-type sensing behavior. Their best working temperatures drop from 289 °C (or 386 °C) to 99 °C (or 70 °C) at which the responses are improved by 14 to 163 times for different x values. Among them, CuO(L)/W5O14 shows the highest sensitivity of 1575.7 to 10 ppm H2S at 99 °C and 171.5 to 10 ppm H2S at room temperature. Once WO3-x were loaded with a high concentration of CuO nanoparticles (Cu:W = 1:2), they exhibit a p-type behavior, and the optimal working temperatures reduce suddenly to room temperature at which CuO(H)/W18O49 displays the most sensitive response of 7.2 even toward trace amounts of H2S as low as 100 ppb. In addition, p-type CuO weakens the metal-like characteristics of W18O49 and such weakening effect enhances with an increase in the CuO content. Therefore, the sensing performance of the CuO/W18O49 composite is the best among the four CuO/WO3-x sensors. The two designs for low and high Cu/W molar ratios all achieve enhanced room-temperature H2S gas response, with a fast recovery time of ∼60 s under heating pulse, as well as an excellent selectivity, which makes the sensors a promising candidate for practical applications. Moreover, the micro-Raman spectra confirmed CuS formation and the thermal effect on the decomposition of CuS in the sensing process was studied.
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Affiliation(s)
- Fang Peng
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
- School of Electronic Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weiwei Yu
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
- School of Electronic Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yue Lu
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
| | - Yan Sun
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
| | - Xiuli Fu
- School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Jia Ming Hao
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
| | - Xin Chen
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
| | - Rui Cong
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
| | - Ning Dai
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
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High-Performance Cataluminescence Sensor Based on Nanosized V 2O 5 for 2-Butanone Detection. Molecules 2020; 25:molecules25153552. [PMID: 32759660 PMCID: PMC7436099 DOI: 10.3390/molecules25153552] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 07/25/2020] [Accepted: 07/30/2020] [Indexed: 02/01/2023] Open
Abstract
The development of high-performance sensors is of great significance for the control of the volatile organic compounds (VOCs) pollution and their potential hazard. In this paper, high crystalline V2O5 nanoparticles were successfully synthesized by a simple hydrothermal method. The structure and morphology of the prepared nanoparticles were characterized by TEM and XRD, and the cataluminescence (CTL) sensing performance was also investigated. Experiments found that the as-prepared V2O5 not only shows sensitive CTL response and good selectivity to 2-butanone, but also exhibits rapid response and recovery speed. The limit of detection was found to be 0.2 mg/m3 (0.07 ppm) at a signal to noise ratio of 3. In addition, the linear range exceeds two orders of magnitude, which points to the promising application of the sensor in monitoring of 2-butanone over a wide concentration range. The mechanism of the sensor exhibiting selectivity to different gas molecules were probed by quantum chemistry calculation. Results showed that the highest partial charge distribution, lowest HOMO-LUMO energy gap and largest dipole moment of 2-butanone among the tested gases result in it having the most sensitive response amongst other VOCs.
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Peng F, Sun Y, Yu W, Lu Y, Hao J, Cong R, Shi J, Ge M, Dai N. Gas Sensing Performance and Mechanism of CuO( p)-WO 3( n) Composites to H 2S Gas. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1162. [PMID: 32545772 PMCID: PMC7353353 DOI: 10.3390/nano10061162] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 11/16/2022]
Abstract
In this work, the compositional optimization in copper oxide/tungsten trioxide (CuO/WO3) composites was systematically studied for hydrogen sulfide (H2S) sensing. The response of CuO/WO3 composites changes from p-type to n-type as the CuO content decreases. Furthermore, the p-type response weakens while the n-type response strengthens as the Cu/W molar ratio decreases from 1:0 to 1:10. The optimal Cu/W molar ratio is 1:10, at which the sensor presents the ultrahigh n-type response of 1.19 × 105 to 20 ppm H2S gas at 40 °C. Once the temperature rises from 40 °C to 250 °C, the CuO/WO3 (1:1) sensor presents the p-n response transformation, and the CuO/WO3 (1:1.5) sensor changes from no response to n-type response, because the increased temperature facilitates the Cu-S bonds break and weakens the p-type CuO contribution to the total response, such that the CuS bond decomposition by a thermal effect was verified by a Raman analysis. In addition, with a decrease in CuO content, the CuO is transformed from partly to completely converting to CuS, causing the resistance of CuO to decrease from increasing and, hence, a weakening mode of p-CuO and n-WO3 to the total response turns to a synergistic mode to it.
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Affiliation(s)
- Fang Peng
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China; (F.P.); (W.Y.); (Y.L.); (J.H.); (R.C.)
- School of Electronic Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Sun
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China; (F.P.); (W.Y.); (Y.L.); (J.H.); (R.C.)
| | - Weiwei Yu
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China; (F.P.); (W.Y.); (Y.L.); (J.H.); (R.C.)
- School of Electronic Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yue Lu
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China; (F.P.); (W.Y.); (Y.L.); (J.H.); (R.C.)
| | - Jiaming Hao
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China; (F.P.); (W.Y.); (Y.L.); (J.H.); (R.C.)
| | - Rui Cong
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China; (F.P.); (W.Y.); (Y.L.); (J.H.); (R.C.)
| | - Jichao Shi
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 200235, China;
| | - Meiying Ge
- National Engineering Research Center for Nanotechnology, No. 28 East Jiang Chuan Road, Shanghai 200241, China;
| | - Ning Dai
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China; (F.P.); (W.Y.); (Y.L.); (J.H.); (R.C.)
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
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