1
|
Wang Z, Zhao Z, Jin S, Bian F, Chang Y, Duan X, Men X, You R. Investigation of sorptive interactions between volatile organic compounds and supramolecules at dynamic oscillation using bulk acoustic wave resonator virtual sensor arrays. MICROSYSTEMS & NANOENGINEERING 2024; 10:99. [PMID: 39021529 PMCID: PMC11252376 DOI: 10.1038/s41378-024-00729-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/19/2024] [Accepted: 05/29/2024] [Indexed: 07/20/2024]
Abstract
Supramolecules are considered as promising materials for volatile organic compounds (VOCs) sensing applications. The proper understanding of the sorption process taking place in host-guest interactions is critical in improving the pattern recognition of supramolecules-based sensing arrays. Here, we report a novel approach to investigate the dynamic host-guest recognition process by employing a bulk acoustic wave (BAW) resonator capable of producing multiple oscillation amplitudes and simultaneously recording multiple responses to VOCs. Self-assembled monolayers (SAMs) of β-cyclodextrin (β-CD) were modified on four BAW sensors to demonstrate the gas-surface interactions regarding oscillation amplitude and SAM length. Based on the method, a virtual sensor array (VSA) type electronic nose (e-nose) can be realized by pattern recognition of multiple responses at different oscillation amplitudes of a single sensor. VOCs analysis was realized respectively by using principal component analysis (PCA) for individual VOC identification and linear discriminant analysis (LDA) for VOCs mixtures classification.
Collapse
Affiliation(s)
- Zilun Wang
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205 China
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, 300072 China
- School of Instrument Science and Opto-Electronics Engineering, Beijing Information Science and Technology University, Beijing, 100192 China
| | - Zeyu Zhao
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, 300072 China
| | - Suhan Jin
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, 300072 China
| | - Feilong Bian
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205 China
| | - Ye Chang
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, 300072 China
| | - Xuexin Duan
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, 300072 China
| | - Xiangdong Men
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205 China
| | - Rui You
- School of Instrument Science and Opto-Electronics Engineering, Beijing Information Science and Technology University, Beijing, 100192 China
| |
Collapse
|
2
|
Peng H, Liu Y, Shen Y, Xu L, Lu J, Li M, Lu HL, Gao L. Highly Sensitive and Selective Toluene Gas Sensors Based on ZnO Nanoflowers Decorated with Bimetallic AuPt. Molecules 2024; 29:1657. [PMID: 38611936 PMCID: PMC11013457 DOI: 10.3390/molecules29071657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 03/30/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
Efficient sensors for toluene detecting are urgently needed to meet people's growing demands for both environment and personal health. Metal oxide semiconductor (MOS)-based sensors have become brilliant candidates for the detection of toluene because of their superior performance over gas sensing. However, gas sensors based on pure MOS have certain limitations in selectivity, operating temperature, and long-term stability, which hinders their further practical applications. Noble metals (including Ag, Au, Pt, Pd, etc.) have the ability to enhance the performance of MOS-based sensors via surface functionalization. Herein, ZnO nanoflowers (ZNFs) modified with bimetallic AuPt are prepared for toluene detection through hydrothermal method. The response of a AuPt@ZNF-based gas sensor can reach 69.7 at 175 °C, which is 30 times, 9 times, and 10 times higher than that of the original ZNFs, Au@ZNFs, and Pt@ZNFs, respectively. Furthermore, the sensor also has a lower optimal operating temperature (175 °C), good stability (94% of previous response after one month), and high selectivity towards toluene, which is the result of the combined influence of the electronic and chemical sensitization of noble metals, as well as the unique synergistic effect of the AuPt alloy. In summary, AuPt@ZNF-based sensors can be further applied in toluene detection in practical applications.
Collapse
Affiliation(s)
- Huiting Peng
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (H.P.); (Y.L.); (Y.S.); (M.L.)
| | - Yiping Liu
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (H.P.); (Y.L.); (Y.S.); (M.L.)
| | - Yinfeng Shen
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (H.P.); (Y.L.); (Y.S.); (M.L.)
| | - Ling Xu
- Guanghua Lingang Engineering Application Technology Research and Development (Shanghai) Co., Ltd., Shanghai 201306, China; (L.X.); (J.L.)
| | - Jicun Lu
- Guanghua Lingang Engineering Application Technology Research and Development (Shanghai) Co., Ltd., Shanghai 201306, China; (L.X.); (J.L.)
| | - Ming Li
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (H.P.); (Y.L.); (Y.S.); (M.L.)
| | - Hong-Liang Lu
- State Key Laboratory of ASIC and System, Shanghai Institute of Intelligent Electronics & Systems, School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Liming Gao
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (H.P.); (Y.L.); (Y.S.); (M.L.)
| |
Collapse
|
3
|
Gartner M, Stroescu H, Mitrea D, Nicolescu M. Various Applications of ZnO Thin Films Obtained by Chemical Routes in the Last Decade. Molecules 2023; 28:4674. [PMID: 37375229 PMCID: PMC10304324 DOI: 10.3390/molecules28124674] [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: 04/30/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
This review addresses the importance of Zn for obtaining multifunctional materials with interesting properties by following certain preparation strategies: choosing the appropriate synthesis route, doping and co-doping of ZnO films to achieve conductive oxide materials with p- or n-type conductivity, and finally adding polymers in the oxide systems for piezoelectricity enhancement. We mainly followed the results of studies of the last ten years through chemical routes, especially by sol-gel and hydrothermal synthesis. Zinc is an essential element that has a special importance for developing multifunctional materials with various applications. ZnO can be used for the deposition of thin films or for obtaining mixed layers by combining ZnO with other oxides (ZnO-SnO2, ZnO-CuO). Also, composite films can be achieved by mixing ZnO with polymers. It can be doped with metals (Li, Na, Mg, Al) or non-metals (B, N, P). Zn is easily incorporated in a matrix and therefore it can be used as a dopant for other oxidic materials, such as: ITO, CuO, BiFeO3, and NiO. ZnO can be very useful as a seed layer, for good adherence of the main layer to the substrate, generating nucleation sites for nanowires growth. Thanks to its interesting properties, ZnO is a material with multiple applications in various fields: sensing technology, piezoelectric devices, transparent conductive oxides, solar cells, and photoluminescence applications. Its versatility is the main message of this review.
Collapse
Affiliation(s)
| | - Hermine Stroescu
- Institute of Physical Chemistry “Ilie Murgulescu”, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Daiana Mitrea
- Institute of Physical Chemistry “Ilie Murgulescu”, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | | |
Collapse
|
4
|
John RAB, Ruban Kumar A. Tuning the p-type conductivity of NiO for the room temperature formaldehyde detection. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
5
|
Lee DH, Zhang Y, Chang SJ, Park H, Kim CS, Baek J, Park J, No K, Song HW, Park H, Lee S. Multimodal Encapsulation to Selectively Permeate Hydrogen and Engineer Channel Conduction for p-Type SnO x Thin-Film Transistor Applications. ACS APPLIED MATERIALS & INTERFACES 2022; 14:53999-54011. [PMID: 36444765 DOI: 10.1021/acsami.2c15719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
It has been challenging to synthesize p-type SnOx (1 < x < 2) and engineer the electrical properties such as carrier density and mobility due to the narrow processing window and the localized oxygen 2p orbitals near the valence band. Herein, we report on the multifunctional encapsulation of p-SnOx to limit the surface adsorption of oxygen and selectively permeate hydrogen into the p-SnOx channel for thin-film transistor (TFT) applications. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) measurements identified that ultrathin SiO2 as a multifunctional encapsulation layer effectively suppressed the oxygen adsorption on the back channel surface of p-SnOx and selectively diffused hydrogen across the entire thickness of the channel. Encapsulated p-SnOx-based TFTs demonstrated much enhanced channel conductance modulation in response to the gate bias applied, featuring higher on-state current and lower off-state current (on/off ratio > 103), field effect mobility of 3.41 cm2/(V s), and threshold voltages of ∼5-10 V. The fabricated devices show minimal deviations as small as ±6% in the TFT performance parameters, which demonstrates good reproducibility of the fabrication process. The relevance between the TFT performance and the effects of hydrogen permeation is discussed in regard to the intrinsic and extrinsic doping mechanisms. Density functional theory calculations reveal that hydrogen-related impurity complexes are in charge of the enhanced channel conductance with gate biases, which further supports the selective permeation of hydrogen through a thin SiO2 encapsulation.
Collapse
Affiliation(s)
- Dong Hun Lee
- School of Engineering Technology, Purdue University, West Lafayette, Indiana47907, United States
| | - Yuxuan Zhang
- School of Engineering Technology, Purdue University, West Lafayette, Indiana47907, United States
| | - Sung-Jin Chang
- Center for Analysis & Evaluation, National Nanofab Center, Daejeon34141, Republic of Korea
| | - Honghwi Park
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu41566, Republic of Korea
| | - Chung Soo Kim
- Analysis Technical Center, Korea Institute of Ceramic Engineering and Technology, Jinju, Gyeongsangnam-do52851, Republic of Korea
| | - Jinwook Baek
- School of Engineering Technology, Purdue University, West Lafayette, Indiana47907, United States
| | - Jeongmin Park
- Analysis Technical Center, Korea Institute of Ceramic Engineering and Technology, Jinju, Gyeongsangnam-do52851, Republic of Korea
| | - Kwangsoo No
- Department of Materials Science and Engineering, KAIST, Daejeon34141, Republic of Korea
| | - Han Wook Song
- Center for Mass and Related Quantities, Korea Research Institute of Standard and Science, Daejeon34113, Republic of Korea
| | - Hongsik Park
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu41566, Republic of Korea
| | - Sunghwan Lee
- School of Engineering Technology, Purdue University, West Lafayette, Indiana47907, United States
| |
Collapse
|
6
|
Hua Y, Ahmadi Y, Kim KH. Molecularly imprinted polymers for sensing gaseous volatile organic compounds: opportunities and challenges. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 311:119931. [PMID: 35977643 DOI: 10.1016/j.envpol.2022.119931] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/21/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Chemical sensors that can detect volatile organic compounds (VOCs) are the subject of extensive research efforts. Among various sensing technologies, molecularly imprinted polymers (MIPs) are regarded as a highly promising option for their detection with many advantageous properties, e.g., specific binding-site for template molecules, high recognition specificity, ease of preparation, and chemical stability. This review covers recent advances in the sensing application of MIPs toward various types of VOCs (e.g., aliphatic and aromatic compounds). Particular emphasis has been placed on multiple approaches to the synthesis of MIP-based VOC sensors in association with their performance and sensing mechanisms. Current challenges and opportunities for new VOC-sensing applications are also discussed based on MIP technology.
Collapse
Affiliation(s)
- Yongbiao Hua
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea
| | - Younes Ahmadi
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea.
| |
Collapse
|
7
|
Li C, Choi PG, Masuda Y. Highly Sensitive and Selective Gas Sensors Based on NiO/MnO 2 @NiO Nanosheets to Detect Allyl Mercaptan Gas Released by Humans under Psychological Stress. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2202442. [PMID: 35839470 PMCID: PMC9507369 DOI: 10.1002/advs.202202442] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/24/2022] [Indexed: 05/26/2023]
Abstract
NiO nanosheets are synthesized in situ on gas sensor chips using a facile solvothermal method. These NiO nanosheets are then used as gas sensors to analyze allyl mercaptan (AM) gas, an exhaled biomarker of psychological stress. Additionally, MnO2 nanosheets are synthesized onto the surfaces of the NiO nanosheets to enhance the gas-sensing performance. The gas-sensing response of the NiO nanosheet sensor is higher than that of the MnO2 @NiO nanosheet sensor. The response value can reach 56.69, when the NiO nanosheet sensor detects 40 ppm AM gas. Interestingly, a faster response time (115 s) is obtained when the MnO2 @NiO nanosheet sensor is exposed to 40 ppm of AM gas. Moreover, the selectivity toward AM gas is about 17-37 times greater than those toward confounders. The mechanism of gas sensing and the factors contributing to the enhance gas response of the NiO and MnO2 @NiO nanosheets are discussed. The products of AM gas oxidized by the gas sensor are identified by gas chromatography-mass spectrometry (GC/MS). AM gas detection is an unprecedented application for semiconductor metal oxides. From a broader perspective, the developed sensors represent a new platform for the identification and monitoring of gases released by humans under psychological stress, which is increasing in modern life.
Collapse
Affiliation(s)
- Chunyan Li
- National Institute of Advanced Industrial Science and Technology (AIST)2266‐98 Anagahora, Shimoshidami, MoriyamaNagoya463‐8560Japan
| | - Pil Gyu Choi
- National Institute of Advanced Industrial Science and Technology (AIST)2266‐98 Anagahora, Shimoshidami, MoriyamaNagoya463‐8560Japan
| | - Yoshitake Masuda
- National Institute of Advanced Industrial Science and Technology (AIST)2266‐98 Anagahora, Shimoshidami, MoriyamaNagoya463‐8560Japan
| |
Collapse
|
8
|
Chelu M, Chesler P, Anastasescu M, Hornoiu C, Mitrea D, Atkinson I, Brasoveanu C, Moldovan C, Craciun G, Gheorghe M, Gartner M. ZnO/NiO heterostructure-based microsensors used in formaldehyde detection at room temperature: Influence of the sensor operating voltage. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN ELECTRONICS 2022; 33:19998-20011. [PMID: 38625349 PMCID: PMC9364853 DOI: 10.1007/s10854-022-08818-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 07/22/2022] [Indexed: 05/31/2023]
Abstract
Recently the emissions of volatile organic compounds (VOCs) in the atmosphere have increased dramatically with rapid development of urbanization and industry. This led to a large decline in air quality around the world, which resulted in a heavy impact on human health. Therefore, new/cheap detection devices for VOCs are of high interest. Formaldehyde (FA) is a very toxic VOC, which damages the respiratory system even in the smallest doses and short exposure time. Zinc oxide (ZnO)/nickel oxide (NiO) heterostructures were synthesized using an economical route: firstly, NiO was prepared by liquid exfoliation technique and deposited by dip-coating on alumina ceramic transducers with two interdigital gold (Au) electrodes, followed by low-temperature hydrothermal growth of ZnO. The as-prepared sensors were characterized by atomic force microscopy (AFM), scanning electron microscopy (SEM-EDAX), and X-Ray fluorescence (XRF). The response/recovery of ZnO/NiO heterostructure-based microsensors for formaldehyde was investigated at room temperature, in agreement with modern sensing requirements. The sensor operating voltage was varied between 1.5 and 5.0 V direct current (DC), to achieve the best sensor performance.
Collapse
Affiliation(s)
- Mariana Chelu
- “Ilie Murgulescu” Institute of Physical Chemistry - Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Paul Chesler
- “Ilie Murgulescu” Institute of Physical Chemistry - Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Mihai Anastasescu
- “Ilie Murgulescu” Institute of Physical Chemistry - Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Cristian Hornoiu
- “Ilie Murgulescu” Institute of Physical Chemistry - Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Daiana Mitrea
- “Ilie Murgulescu” Institute of Physical Chemistry - Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Irina Atkinson
- “Ilie Murgulescu” Institute of Physical Chemistry - Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Costin Brasoveanu
- National Institute for Research and Development in Microtechnologies, Platforma IPRS Baneasa, Strada Erou Iancu Nicolae 126A, 077190 Voluntari, Ilfov Romania
| | - Carmen Moldovan
- National Institute for Research and Development in Microtechnologies, Platforma IPRS Baneasa, Strada Erou Iancu Nicolae 126A, 077190 Voluntari, Ilfov Romania
| | - Gabriel Craciun
- National Institute for Research and Development in Microtechnologies, Platforma IPRS Baneasa, Strada Erou Iancu Nicolae 126A, 077190 Voluntari, Ilfov Romania
| | - Marin Gheorghe
- NANOM MEMS SRL, Strada George Cosbuc 9, 505400 Rasnov, Brasov Romania
| | - Mariuca Gartner
- “Ilie Murgulescu” Institute of Physical Chemistry - Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| |
Collapse
|
9
|
Du H, Wu Y, Zhang Z, He W, Wang J, Sun Y, Cong L. Oxygen-plasma-assisted formaldehyde adsorption mechanism of SnO 2electrospun fibers. NANOTECHNOLOGY 2022; 33:345504. [PMID: 34902851 DOI: 10.1088/1361-6528/ac4286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Chemisorbed oxygen acts a crucial role in the redox reaction of semiconductor gas sensors, and which is of great significance for improving gas sensing performance. In this study, an oxygen-plasma-assisted technology is presented to enhance the chemisorbed oxygen for improving the formaldehyde sensing performance of SnO2electropun fiber. An inductively coupled plasma device was used for oxygen plasma treatment of SnO2electrospun fibers. The surface of SnO2electrospun fibers was bombarded with high-energy oxygen plasma for facilitating the chemisorption of electronegative oxygen molecules on the SnO2(110) surface to obtain an oxygen-rich structure. Oxygen-plasma-assisted SnO2electrospun fibers exhibited excellent formaldehyde sensing performance. The formaldehyde adsorption mechanism of oxygen-rich SnO2was investigated using density functional theory. After oxygen plasma modification, the adsorption energy and the charge transfer number of formaldehyde to SnO2were increased significantly. And an unoccupied electronic state appeared in the SnO2band structure, which could enhance the formaldehyde adsorption ability of SnO2. The gas sensing test revealed that plasma-treated SnO2electrospun fibers exhibited excellent gas sensing properties to formaldehyde, low operating temperature, high response sensitivity, and considerable cross-selectivity. Thus, plasma modification is a simple and effective method to improve the gas sensing performance of sensors.
Collapse
Affiliation(s)
- Haiying Du
- College of Mechanical and Electronic Engineering, Dalian Minzu University, Dalian 116600, People's Republic of China
| | - Yuxia Wu
- College of Mechanical and Electronic Engineering, Dalian Minzu University, Dalian 116600, People's Republic of China
| | - Zhaorui Zhang
- College of Mechanical and Electronic Engineering, Dalian Minzu University, Dalian 116600, People's Republic of China
| | - Wanmin He
- College of Mechanical and Electronic Engineering, Dalian Minzu University, Dalian 116600, People's Republic of China
| | - Jing Wang
- College of Mechanical and Electronic Engineering, Dalian Minzu University, Dalian 116600, People's Republic of China
| | - Yanhui Sun
- College of Information and Communication Engineering, Dalian Minzu University, Dalian 116600, People's Republic of China
| | - Liying Cong
- College of Mechanical and Electronic Engineering, Dalian Minzu University, Dalian 116600, People's Republic of China
| |
Collapse
|
10
|
He J, Zheng F, Zhou Y, Li X, Wang Y, Xiao J, Li Y, Chen D, Lu J. Catalytic oxidation of VOCs over 3D@2D Pd/CoMn 2O 4 nanosheets supported on hollow Al 2O 3 microspheres. J Colloid Interface Sci 2022; 613:155-167. [PMID: 35033762 DOI: 10.1016/j.jcis.2022.01.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 01/07/2023]
Abstract
Catalytic oxidation is a promising method for removing harmful volatile organic compounds (VOCs). Therefore, exploring high-efficiency catalysts for catalyzing VOCs is of great significance to the realization of an environment-friendly and sustainable society. Here, a series of 3D@2D constructed Al2O3@CoMn2O4 microspheres with a hollow hierarchical structure supporting Pd nanoparticles was successfully synthesized. The introduction of hollow Al2O3 for the in situ vertical growth of 2D CMO spinel materials constructs a well-defined core - shell hollow hierarchical structure, leading to larger specific surface area, more accessible active sites and promoted catalytic activity of support material. Additionally, theoretical calculations also indicate that the addition of Al2O3 as the support material strengthens the adsorption of toluene and oxygen on CoMn2O4, which promotes their activation. The dispersion of Pd further strengthens the low-temperature reducibility along with more active surface oxygen species and lower apparent activation energy. The optimum 1 wt% Pd/h-Al@4CMO catalyst possesses the lowest apparent activation energy for toluene of 77.4 kJ mol-1, showing the relatively best catalytic activity for VOC oxidation, reaching 100% toluene, benzene, and ethyl acetate conversion at 165, 160, and 155 °C, respectively. Meanwhile, the 1 wt% Pd/h-Al@4CMO sample possesses excellent catalytic stability, outstanding selectivity, and good moisture tolerance, which is an effective candidate for eliminating VOCs contaminants.
Collapse
Affiliation(s)
- Jiaqin He
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, PR China
| | - Fangfang Zheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, PR China
| | - Yuanbo Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, PR China
| | - Xunxun Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, PR China
| | - Yaru Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, PR China
| | - Jun Xiao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, PR China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, PR China
| | - Dongyun Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, PR China.
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, PR China.
| |
Collapse
|
11
|
Ostovan A, Naghavi SS. Highly Sensitive, Selective and Low-Power Consumption Metalloporphyrin−Based Junctions for Nitrogen Monoxide Detection with Excellent Recovery. Phys Chem Chem Phys 2022; 24:15579-15587. [DOI: 10.1039/d2cp01553f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Research interest in chemical gas detection has been directed towards developing highly selective bio-inspired and eco-friendly materials that allow the integration of sensors in daily human life, such as the...
Collapse
|
12
|
Lee DH, Park H, Clevenger M, Kim H, Kim CS, Liu M, Kim G, Song HW, No K, Kim SY, Ko DK, Lucietto A, Park H, Lee S. High-Performance Oxide-Based p-n Heterojunctions Integrating p-SnO x and n-InGaZnO. ACS APPLIED MATERIALS & INTERFACES 2021; 13:55676-55686. [PMID: 34779629 DOI: 10.1021/acsami.1c16222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The fabrication of oxide-based p-n heterojunctions that exhibit high rectification performance has been difficult to realize using standard manufacturing techniques that feature mild vacuum requirements, low thermal budget processing, and scalability. Critical bottlenecks in the fabrication of these heterojunctions include the narrow processing window of p-type oxides and the charge-blocking performance across the metallurgical junction required for achieving low reverse current and hence high rectification behavior. The overarching goal of the present study is to demonstrate a simple processing route to fabricate oxide-based p-n heterojunctions that demonstrate high on/off rectification behavior, a low saturation current, and a small turn-on voltage. For this study, room-temperature sputter-deposited p-SnOx and n-InGaZnO (IGZO) films were chosen. SnOx is a promising p-type oxide material due to its monocationic system that limits complexities related to processing and properties, compared to other multicationic oxide materials. For the n-type oxide, IGZO is selected due to the knowledge that postprocessing annealing critically reduces the defect and trap densities in IGZO to ensure minimal interfacial recombination and high charge-blocking performance in the heterojunctions. The resulting oxide p-n heterojunction exhibits a high rectification ratio greater than 103 at ±3 V, a low saturation current of ∼2 × 10-10 A, and a small turn-on voltage of ∼0.5 V. In addition, the demonstrated oxide p-n heterojunctions exhibit excellent stability over time in air due to the p-SnOx with completed reaction annealing in air and the reduced trap density in n-IGZO.
Collapse
Affiliation(s)
- Dong Hun Lee
- School of Engineering Technology, Purdue University, West Lafayette, Indiana 47907, United States
| | - Honghwi Park
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Michael Clevenger
- School of Engineering Technology, Purdue University, West Lafayette, Indiana 47907, United States
| | - Hyeonghun Kim
- School of Engineering Technology, Purdue University, West Lafayette, Indiana 47907, United States
| | - Chung Soo Kim
- Analysis Technical Center, Korea Institute of Ceramic Engineering and Technology, Jinju, Gyeongsangnam-do 52851, Republic of Korea
| | - Mingyuan Liu
- School of Engineering Technology, Purdue University, West Lafayette, Indiana 47907, United States
| | - Giyong Kim
- School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Han Wook Song
- Center for Mass and Related Quantities, Korea Research Institute of Standard and Science, Daejeon 34113, Republic of Korea
| | - Kwangsoo No
- Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Sung Yeol Kim
- School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Dong-Kyun Ko
- Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Anne Lucietto
- School of Engineering Technology, Purdue University, West Lafayette, Indiana 47907, United States
| | - Hongsik Park
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sunghwan Lee
- School of Engineering Technology, Purdue University, West Lafayette, Indiana 47907, United States
| |
Collapse
|
13
|
Synthesis of Heterostructure of ZnO@MOF-46(Zn) to Improve the Photocatalytic Performance in Methylene Blue Degradation. CRYSTALS 2021. [DOI: 10.3390/cryst11111379] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The heterostructure of ZnO and MOF-46(Zn) was synthesized to improve the photocatalytic performance of ZnO and prove the synergistic theory that presented the coexistence of ZnO and MOF-46(Zn), providing better efficiency than pure ZnO. The heterostructure material was synthesized by using prepared ZnO as a Zn2+ source, which was reacted with 2-aminoterephthalic acid (2-ATP) as a ligand to cover the surface of ZnO with MOF-46(Zn). The ZnO reactant materials were modified by pyrolysis of various morphologies of IRMOF-3 (Zn-MOF) prepared by using CTAB as a morphology controller. The octahedral ZnO obtained at 150 mg of CTAB shows better efficiency for photodegradation, with 85.79% within 3 h and a band gap energy of 3.11 eV. It acts as a starting material for synthesis of ZnO@MOF-46(Zn). The ZnO/MOF-46(Zn) composite was further used as a photocatalyst material in the dye (methylene blue: MB) degradation process, and the performance was compared with that of pure prepared ZnO. The results show that the photocatalytic efficiency with 61.20% in the MB degradation of the heterostructure is higher than that of pure ZnO within 60 min (90.09% within 180 min). The reason for this result may be that the coexistence of ZnO and MOF-46(Zn) can absorb a larger range of energy and reduce the possibility of the electron–hole recombination process.
Collapse
|
14
|
High Response of Ethanol Gas Sensor Based on NiO-Doped Apple Pectin by the Solution Process. COATINGS 2021. [DOI: 10.3390/coatings11091073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Novel gas sensor devices, based on biomaterial apple pectin film (APN) doped with NiO, were fabricated for the first time using a solution processing technique. The device was then annealed in a microwave chamber. The structural, elemental, and surface morphology of the device was investigated, using TEM, XPS, and AFM, respectively. The as-fabricated film sensor possessed a superior sensing performance regarding ethanol gas, compared to the pure apple pectin film sensor. The response of the device was recorded at a maximum efficiency of 161. For a 10 ppm concentration of ethanol gas at an operational temperature of 250 °C, the response time was 1.379 s. Nevertheless, the sensing mechanism for the sensor device is also described thoroughly.
Collapse
|
15
|
Abstract
NiO-loaded SnO2 powders were prepared involving two chemical procedures. The mesoporous SnO2 support was synthesized by a hydrothermal route using Brij 35 non-ionic surfactant as a template. The nickel loadings of 1 and 10 wt.%. NiO were deposited by the wet impregnation method. The H2S sensing properties of xNiO-(1-x)SnO2 (x = 0, 1, 10%) thick layers deposited onto commercial substrates have been investigated with respect to different potential interfering gases (NO2, CO, CO2, CH4, NH3 and SO2) over a wide range of operating temperatures and relative humidity specific for in-field conditions. Following the correlation of the sensing results with the morphological ones, 1wt.% NiO/SnO2 was selected for simultaneous electrical resistance and work function investigations. The purpose was to depict the sensing mechanism by splitting between specific changes over the electron affinity induced by the surface coverage with hydroxyl dipoles and over the band bending induced by the variable surface charge under H2S exposure. Thus, it was found that different gas-interaction partners are dependent upon the amount of H2S, mirrored through the threshold value of 5 ppm H2S, which from an applicative point of view, represents the lower limit of health effects, an eight-hour TWA.
Collapse
|
16
|
Nakate UT, Patil P, Na SI, Yu Y, Suh EK, Hahn YB. Fabrication and enhanced carbon monoxide gas sensing performance of p-CuO/n-TiO2 heterojunction device. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125962] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
17
|
Shellaiah M, Sun KW. Inorganic-Diverse Nanostructured Materials for Volatile Organic Compound Sensing. SENSORS (BASEL, SWITZERLAND) 2021; 21:633. [PMID: 33477501 PMCID: PMC7831086 DOI: 10.3390/s21020633] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/05/2021] [Accepted: 01/14/2021] [Indexed: 11/17/2022]
Abstract
Environmental pollution related to volatile organic compounds (VOCs) has become a global issue which attracts intensive work towards their controlling and monitoring. To this direction various regulations and research towards VOCs detection have been laid down and conducted by many countries. Distinct devices are proposed to monitor the VOCs pollution. Among them, chemiresistor devices comprised of inorganic-semiconducting materials with diverse nanostructures are most attractive because they are cost-effective and eco-friendly. These diverse nanostructured materials-based devices are usually made up of nanoparticles, nanowires/rods, nanocrystals, nanotubes, nanocages, nanocubes, nanocomposites, etc. They can be employed in monitoring the VOCs present in the reliable sources. This review outlines the device-based VOC detection using diverse semiconducting-nanostructured materials and covers more than 340 references that have been published since 2016.
Collapse
Affiliation(s)
| | - Kien Wen Sun
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan;
| |
Collapse
|
18
|
Guo W, Surya SG, Babar V, Ming F, Sharma S, Alshareef HN, Schwingenschlögl U, Salama KN. Selective Toluene Detection with Mo 2CT x MXene at Room Temperature. ACS APPLIED MATERIALS & INTERFACES 2020; 12:57218-57227. [PMID: 33289555 DOI: 10.1021/acsami.0c16302] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
MXenes are a promising class of two-dimensional materials with several potential applications, including energy storage, catalysis, electromagnetic interference shielding, transparent electronics, and sensors. Here, we report a novel Mo2CTx MXene sensor for the successful detection of volatile organic compounds (VOCs). The proposed sensor is a chemiresistive device fabricated on a Si/SiO2 substrate using photolithography. The impact of various MXene process conditions on the performance of the sensor is evaluated. The VOCs, such as toluene, benzene, ethanol, methanol, and acetone, are studied at room temperature with varying concentrations. Under optimized conditions, the sensor demonstrates a detection limit of 220 ppb and a sensitivity of 0.0366 Ω/ppm at a toluene concentration of 140 ppm. It exhibits an excellent selectivity toward toluene against the other VOCs. Ab initio simulations demonstrate selectivity toward toluene in line with the experimental results.
Collapse
Affiliation(s)
- Wenzhe Guo
- Sensors Lab, Advanced Membranes & Porous Materials Center (AMPMC), CEMSE, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Sandeep G Surya
- Sensors Lab, Advanced Membranes & Porous Materials Center (AMPMC), CEMSE, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Vasudeo Babar
- Computational Physics & Materials Science Lab, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Fangwang Ming
- Functional Nanomaterials & Devices Lab, Materials Science and Engineering, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Sitansh Sharma
- Computational Physics & Materials Science Lab, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Husam N Alshareef
- Functional Nanomaterials & Devices Lab, Materials Science and Engineering, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Udo Schwingenschlögl
- Computational Physics & Materials Science Lab, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Khaled N Salama
- Sensors Lab, Advanced Membranes & Porous Materials Center (AMPMC), CEMSE, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| |
Collapse
|