1
|
Yu M, Li J, Yin D, Zhou Z, Wei C, Wang Y, Hao J. Enhanced oxygen anions generation on Bi 2S 3/Sb 2S 3 heterostructure by visible light for trace H 2S detection at room temperature. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134932. [PMID: 38936189 DOI: 10.1016/j.jhazmat.2024.134932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/23/2024] [Accepted: 06/14/2024] [Indexed: 06/29/2024]
Abstract
Bismuth sulfide (Bi2S3) possesses unique properties that make it a promising material for effective hydrogen sulfide (H2S) detection at room temperature. However, when exposed to light, the oxygen anions (O2-(ads)) adsorbed on the surface of Bi2S3 can react with photoinduced holes, ultimately reducing the ability to respond to H2S. In this study, Bi2S3/Sb2S3 heterostructures were synthesized, producing photoinduced oxygen anions (O2-(hv)) under visible light conditions, resulting in enhanced H2S sensing capability. The Bi2S3/Sb2S3 heterostructure sensor exhibits a two-fold increase in sensing response to 500 ppb H2S under in door light conditions relative to its performance in darkness. Additionally, the sensing response of the Bi2S3/Sb2S3 sensor (Ra/Rg= 23.3) was approximately five times higher than pure Bi2S3. The improved sensing performance of the Bi2S3/Sb2S3 heterostructures is attributable to the synergistic influence of the heterostructure configuration and light modulation, which enhances the H2S sensing performance by facilitating rapid charge transfer and increasing active sites (O2-(hv)) when exposed to visible light.
Collapse
Affiliation(s)
- Meiling Yu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Jiayu Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Dongmin Yin
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Zhenze Zhou
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Chenda Wei
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - You Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Juanyuan Hao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
| |
Collapse
|
2
|
Li WH, Li N, Wang XL, Wang W, Zhang H, Xu Q. Solution-Processable Route for Large-Area Uniform 2D Semiconductor Nanofilms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311361. [PMID: 38381007 DOI: 10.1002/smll.202311361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/19/2024] [Indexed: 02/22/2024]
Abstract
The semiconductor thin film engineering technique plays a key role in the development of advanced electronics. Printing uniform nanofilms on freeform surfaces with high efficiency and low cost is significant for actual industrialization in electronics. Herein, a high-throughput colloidal printing (HTCP) strategy is reported for fabricating large-area and uniform semiconductor nanofilms on freeform surfaces. High-throughput and uniform printing rely on the balance of atomization and evaporation, as well as the introduced thermal Marangoni flows of colloidal dispersion, that suppresses outward capillary flows. Colloidal printing with in situ heating enables the fast fabrication of large-area semiconductor nanofilms on freeform surfaces, such as SiO2/Si, Al2O3, quartz glass, poly(ethylene terephthalate) (PET), Al foil, plastic tube, and Ni foam, expanding their technological applications where substrates are essential. The printed SnS2 nanofilms are integrated into thin-film semiconductor gas sensors with one of the fastest responses (8 s) while maintaining the highest sensitivity (Rg/Ra = 21) (toward 10 ppm NO2), as well as an ultralow limit of detection (LOD) of 46 ppt. The ability to print uniform semiconductor nanofilms on freeform surfaces with high-throughput promises the development of next-generation electronics with low cost and high efficiency.
Collapse
Affiliation(s)
- Wen-Hua Li
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Department of Materials Science and Engineering, and SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Nan Li
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Department of Materials Science and Engineering, and SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Xiao-Li Wang
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Department of Materials Science and Engineering, and SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Wenjuan Wang
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Department of Materials Science and Engineering, and SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Haobing Zhang
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Department of Materials Science and Engineering, and SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Qiang Xu
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Department of Materials Science and Engineering, and SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
| |
Collapse
|
3
|
Wu P, Li Y, Yang A, Tan X, Chu J, Zhang Y, Yan Y, Tang J, Yuan H, Zhang X, Xiao S. Advances in 2D Materials Based Gas Sensors for Industrial Machine Olfactory Applications. ACS Sens 2024; 9:2728-2776. [PMID: 38828988 DOI: 10.1021/acssensors.4c00431] [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: 06/05/2024]
Abstract
The escalating development and improvement of gas sensing ability in industrial equipment, or "machine olfactory", propels the evolution of gas sensors toward enhanced sensitivity, selectivity, stability, power efficiency, cost-effectiveness, and longevity. Two-dimensional (2D) materials, distinguished by their atomic-thin profile, expansive specific surface area, remarkable mechanical strength, and surface tunability, hold significant potential for addressing the intricate challenges in gas sensing. However, a comprehensive review of 2D materials-based gas sensors for specific industrial applications is absent. This review delves into the recent advances in this field and highlights the potential applications in industrial machine olfaction. The main content encompasses industrial scenario characteristics, fundamental classification, enhancement methods, underlying mechanisms, and diverse gas sensing applications. Additionally, the challenges associated with transitioning 2D material gas sensors from laboratory development to industrialization and commercialization are addressed, and future-looking viewpoints on the evolution of next-generation intelligent gas sensory systems in the industrial sector are prospected.
Collapse
Affiliation(s)
- Peng Wu
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei 430072, China
| | - Yi Li
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei 430072, China
| | - Aijun Yang
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong, No 28 XianNing West Road, Xi'an, Shanxi 710049, China
| | - Xiangyu Tan
- Electric Power Research Institute, Yunnan Power Grid Co., Ltd., Kunming, Yunnan 650217, China
| | - Jifeng Chu
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong, No 28 XianNing West Road, Xi'an, Shanxi 710049, China
| | - Yifan Zhang
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei 430072, China
| | - Yongxu Yan
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei 430072, China
| | - Ju Tang
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei 430072, China
| | - Hongye Yuan
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shanxi 710049, China
| | - Xiaoxing Zhang
- Hubei Engineering Research Center for Safety Monitoring of New Energy and Power Grid Equipment, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Song Xiao
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei 430072, China
| |
Collapse
|
4
|
Zhang S, Lai X, Xiao R, Pang L, Lu Z, He X, Gao J. Size-Dependent Response of Hydrothermally Grown SnO 2 for a High-Performance NO 2 Sensor and the Impact of Oxygen. ACS Sens 2024; 9:195-205. [PMID: 38166241 DOI: 10.1021/acssensors.3c01825] [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: 01/04/2024]
Abstract
A NO2 sensor with a detection limit down to the ppb level based on pristine SnO2 has been developed through a facile poly(acrylic acid)-mediated hydrothermal method. SnO2 particles of solid microsphere, hollow microsphere, and nanosphere morphologies were synthesized, with respective constitutional crystallite of size ∼2 μm in length and 10-20 nm and ∼7 nm in diameter. All sensors show great selectivity to NO2. The hollow microsphere sensor exhibits the best performance, with medium specific surface area (SSA), followed by the nanosphere sensor with the largest SSA. This is attributed to the superposition of two opposite effects on sensor response with increased SSA: more adsorption sites and fewer electrons to be taken out with overly small crystallite that may reach complete depletion. O2 is found to speed up the response and recovery times but reduce the response because O adsorbates facilitate the adsorption/desorption of NO2 thermodynamically, and the two oxidizing gases compete in harvesting electrons from SnO2. The adverse effect of humidity can be minimized by operating the sensor at 110 °C. The response of the hollow microsphere sensor to 50 ppb of NO2 is 8.8 (Rg/Ra) at room temperature, and it increases to 15.1 at 110 °C. These findings are useful for developing other oxidizing gas semiconductor sensors.
Collapse
Affiliation(s)
- Songlin Zhang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xin Lai
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ruibo Xiao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Long Pang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhenya Lu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xinhua He
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Junning Gao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| |
Collapse
|
5
|
Bharathi P, Harish S, Shimomura M, Mohan MK, Archana J, Navaneethan M. Ultrasensitive and reversible NO 2 gas sensor based on SnS 2/TiO 2 heterostructures for room temperature applications. CHEMOSPHERE 2024; 346:140486. [PMID: 37875216 DOI: 10.1016/j.chemosphere.2023.140486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 10/02/2023] [Accepted: 10/17/2023] [Indexed: 10/26/2023]
Abstract
Nitrogen dioxide (NO2) is one of the toxic gases produced by chemical industries, power plants, and vehicles. In this work, we demonstrate an inexpensive sensing platform for NO2 detection at room temperature (RT-32 °C) based on a charge transfer mechanism. Three-dimensional hierarchical SnS2 and SnS2/mesoporous TiO2 nanocomposites were synthesized via the solvothermal method. SnS2/20 wt% mesoporous TiO2 nanocomposites sample showed 245.4% enhanced response compared to pristine SnS2. The fabricated device exhibits excellent selectivity among all other interfering gases with one-month stability. The rapid response and enhanced response achieved were obtained for the minimum concentration of 2 ppm NO2. The formation of heterojunction between SnS2 and mesoporous TiO2 has a synergetic effect, providing more active sites and porous structures for the detection of NO2 gas molecules.
Collapse
Affiliation(s)
- P Bharathi
- Functional Materials and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, India; Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu, Shizuoka, 432-8011, Japan; Nanotechnology Research Center (NRC), Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603203, India
| | - S Harish
- Functional Materials and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, India; Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu, Shizuoka, 432-8011, Japan
| | - M Shimomura
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu, Shizuoka, 432-8011, Japan.
| | - M Krishna Mohan
- Functional Materials and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, India
| | - J Archana
- Functional Materials and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, India
| | - M Navaneethan
- Functional Materials and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, India; Nanotechnology Research Center (NRC), Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603203, India.
| |
Collapse
|
6
|
Liu J, Duan Z, Duan Y. Enhanced Sensing Performance of Sn X Ti 1-X O 2 -Ti X Sn 1-X O 2 Core-Shell Heterostructure via Increasing the Density of Unsaturated Sn and Ti Atoms. SMALL METHODS 2023:e2301003. [PMID: 37882344 DOI: 10.1002/smtd.202301003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/05/2023] [Indexed: 10/27/2023]
Abstract
The strategy of combining different semiconductor materials is adjudged an effective approach to improve the sensing performances of semiconductor materials. However, the specific synergistic mechanism for the excellent gas-sensitive performances of composite materials has not been elucidated. Herein, a facile solvothermal method is employed to synthesize SnX Ti1-X O2 -TiX Sn1-X O2 core-shell heterostructures using SnCl4 •5H2 O and tetrabutyl titanate (TBOT) as raw materials. When the molar ratio of SnCl4 •5H2 O/TBOT is 1.8/3.0, the afforded composite exhibited the highest gas sensing performances compared with other composites prepared with other molar ratios. The enhanced sensing performance is attributed to the simultaneous incorporation of Sn and Ti ions into each other's lattice, leading to an increase in the density of unsaturated Sn and Ti atoms on the surface. Ultimately, more oxygen vacancies are formed by the unsaturated Sn and Ti atoms, which benefits electron capture and the redox reaction of adsorbed gases. Thus, the concept of increased unsaturated metal atoms and oxygen vacancy resulting from the doping of different metal ions into each other's lattice has deepened the understanding of gas sensing and the catalytic reaction mechanisms. The lattice synergy of different metals provides a pathway for the design of advanced gas-sensing materials and catalysts.
Collapse
Affiliation(s)
- Junfang Liu
- Department of Chemistry, College of Arts and Sciences, Shanxi Agricultural University, 1 Mingxian South Road, Taigu, Shanxi, 030801, P. R. China
| | - Zhiqing Duan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shanxi Medical University, 56 Xinjian South Road, Taiyuan, Shanxi, 030001, P. R. China
| | - Yunqing Duan
- Department of Chemistry, College of Arts and Sciences, Shanxi Agricultural University, 1 Mingxian South Road, Taigu, Shanxi, 030801, P. R. China
| |
Collapse
|
7
|
Yang Y, Mao J, Yin D, Zhang T, Liu C, Hao W, Wang Y, Hao J. Synergy of S-vacancy and heterostructure in BiOCl/Bi 2S 3-x boosting room-temperature NO 2 sensing. JOURNAL OF HAZARDOUS MATERIALS 2023; 455:131591. [PMID: 37172379 DOI: 10.1016/j.jhazmat.2023.131591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/23/2023] [Accepted: 05/05/2023] [Indexed: 05/14/2023]
Abstract
The special physicochemical properties of Bi2S3 nanomaterial endow it to be exceptional NO2 sensing properties. However, sensors based on pure Bi2S3 cannot detect trace NO2 at room temperature effectively due to the scanty active sites and poor charge transfer efficiency. Herein, vacancy defect and heterostructure engineering are rationally integrated to explore BiOCl/Bi2S3-x heterostructure with rich S vacancies to enhance NO2 sensing performance. The optimized sensor based on S-vacancy-rich BiOCl/Bi2S3-x heterostructure exhibited a high response value (Rg/Ra = 29.1) to 1 ppm NO2 at room temperature, which was about 17 times compared to the pristine Bi2S3. Meanwhile, the BiOCl/Bi2S3-x sensor also exhibited a short response time (36 s) towards 1 ppm NO2 and a low theoretical detection limit (2 ppb). The superior response value of S-vacancy-rich BiOCl/Bi2S3-x heterostructures was ascribed to the improved electron migration at the heterointerface and the additional exposed active sites caused by the S vacancies in Bi2S3-x. Additionally, the sensors based on S-vacancy-rich BiOCl/Bi2S3-x heterostructures showed good long-term stability, outstanding selectivity, and good flexibility. This study offers an effective method for synergistically engineering defect and heterostructure to enhance gas sensing properties at room temperature.
Collapse
Affiliation(s)
- Yongchao Yang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; The 49th Research Institute of China Electronics Technology Group Corporation, Harbin 150028, China
| | - Junpeng Mao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Dongmin Yin
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Tianyue Zhang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Chengli Liu
- The 49th Research Institute of China Electronics Technology Group Corporation, Harbin 150028, China
| | - Weixun Hao
- State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers, Harbin Boiler Company Limited, Harbin 150046, China
| | - You Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
| | - Juanyuan Hao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
| |
Collapse
|
8
|
You F, Zhou Y, Li D, Zhang H, Gao D, Ma X, Hao R, Liu J. Construction of a flower-like SnS 2/SnO 2 junction for efficient photocatalytic CO 2 reduction. J Colloid Interface Sci 2023; 629:871-877. [PMID: 36202030 DOI: 10.1016/j.jcis.2022.09.134] [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: 08/12/2022] [Revised: 09/13/2022] [Accepted: 09/25/2022] [Indexed: 10/14/2022]
Abstract
Photoreduction of CO2 to value-added chemicals and fuels is an attractive solution to alleviate environmental problems and energy crisis at the same time. However, engineering efficient photocatalysts with high activity and product selectivity is still challenging. Herein, we achieved three-dimensional (3D) spatial configuration design at micro-scale and heterogeneous interface construction at nano-scale on a SnS2/SnO2 composite, which featured hierarchical flower-like morphology consisted of nanosheets and type-II semiconductor structure. It behaved excellent selectivity and impressive photocatalytic CO2-to-CO performance with a yielding rate of 60.85 μmol g-1h-1, roughly 3 times higher than that of SnS2 and was in the front rank of this kind catalysts under 300 W Xe lamp illumination without using any sensitizers or noble metals. The enhanced catalytic capability could be attributed to the elaborately built structure with suitable energetic position that afforded effective separation and migration of photo-generated electron/hole pairs as well as enhanced light caption and absorption. Meanwhile, main reactive intermediates (e.g., CO2- and *COOH) were captured by in-situ Fourier transform infrared spectroscopy (FTIR), suggesting a fluent catalytic pathway on the SnS2/SnO2 platform. This work provides a new scheme to build advanced catalysts based on multiscale design and rational phase assembling.
Collapse
Affiliation(s)
- Feifei You
- College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng 224051, China
| | - Yunan Zhou
- College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng 224051, China
| | - Danyang Li
- College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Hao Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Dawei Gao
- College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng 224051, China
| | - Xiaohong Ma
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Rui Hao
- National Engineering Research Center of Nonferrous Metals Materials and Products for New Energy, GRINM Group Co. Ltd, Beijing 100088, China; GRIMAT Engineering Institute Co. Ltd, Beijing 101407, China.
| | - Juzhe Liu
- The Key Laboratory of Resources and Environmental System Optimization, Ministry of Education, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| |
Collapse
|
9
|
Usgodaarachchi L, Jayanetti M, Thambiliyagodage C, Liyanaarachchi H, Vigneswaran S. Fabrication of r-GO/GO/α-Fe 2O 3/Fe 2TiO 5 Nanocomposite Using Natural Ilmenite and Graphite for Efficient Photocatalysis in Visible Light. MATERIALS (BASEL, SWITZERLAND) 2022; 16:139. [PMID: 36614479 PMCID: PMC9821193 DOI: 10.3390/ma16010139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/14/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Hematite (α-Fe2O3) and pseudobrookite (Fe2TiO5) suffer from poor charge transport and a high recombination effect under visible light irradiation. This study investigates the design and production of a 2D graphene-like r-GO/GO coupled α-Fe2O3/Fe2TiO5 heterojunction composite with better charge separation. It uses a simple sonochemical and hydrothermal approach followed by L-ascorbic acid chemical reduction pathway. The advantageous band offset of the α-Fe2O3/Fe2TiO5 (TF) nanocomposite between α-Fe2O3 and Fe2TiO5 forms a Type-II heterojunction at the Fe2O3/Fe2TiO5 interface, which efficiently promotes electron-hole separation. Importantly, very corrosive acid leachate resulting from the hydrochloric acid leaching of ilmenite sand, was successfully exploited to fabricate α-Fe2O3/Fe2TiO5 heterojunction. In this paper, a straightforward synthesis strategy was employed to create 2D graphene-like reduced graphene oxide (r-GO) from Ceylon graphite. The two-step process comprises oxidation of graphite to graphene oxide (GO) using the improved Hummer's method, followed by controlled reduction of GO to r-GO using L-ascorbic acid. Before the reduction of GO to the r-GO, the surface of TF heterojunction was coupled with GO and was allowed for the controlled L-ascorbic acid reduction to yield r-GO/GO/α-Fe2O3/Fe2TiO5 nanocomposite. Under visible light illumination, the photocatalytic performance of the 30% GO/TF loaded composite material greatly improved (1240 Wcm-2). Field emission scanning electron microscopy (FE-SEM) and high-resolution transmission electron microscopy (HR-TEM) examined the morphological characteristics of fabricated composites. X-ray photoelectron spectroscopy (XPS), Raman, X-ray diffraction (XRD), X-ray fluorescence (XRF), and diffuse reflectance spectroscopy (DRS) served to analyze the structural features of the produced composites.
Collapse
Affiliation(s)
- Leshan Usgodaarachchi
- Department of Materials Engineering, Faculty of Engineering, Sri Lanka Institute of Information Technology, Malabe 10115, Sri Lanka
| | - Madara Jayanetti
- Faculty of Humanities and Sciences, Sri Lanka Institute of Information Technology, Malabe 10115, Sri Lanka
| | - Charitha Thambiliyagodage
- Faculty of Humanities and Sciences, Sri Lanka Institute of Information Technology, Malabe 10115, Sri Lanka
| | - Heshan Liyanaarachchi
- Faculty of Humanities and Sciences, Sri Lanka Institute of Information Technology, Malabe 10115, Sri Lanka
| | - Saravanamuthu Vigneswaran
- Faculty of Engineering and Information Technology, University of Technology Sydney, P.O. Box 123, Broadway, Ultimo, NSW 2007, Australia
- Faculty of Sciences & Technology (RealTek), Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway
| |
Collapse
|
10
|
Yang Y, Gong W, Li X, Liu Y, Liang Y, Chen B, Yang Y, Luo X, Xu K, Yuan C. Light-assisted room temperature gas sensing performance and mechanism of direct Z-scheme MoS 2/SnO 2 crystal faceted heterojunctions. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129246. [PMID: 35739765 DOI: 10.1016/j.jhazmat.2022.129246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/12/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Light assistance and construction of heterojunctions are both promising means to improve the room temperature gas sensing performance of MoS2 recently. However, enhancing the separation efficiency of photo-generated carriers at interface and adsorption ability of surface have become the bottleneck problem to further improve the room temperature gas sensing performance of MoS2-based heterojunctions under light assistance. In the present study, a novel direct Z-scheme MoS2/SnO2 heterojunction was designed through crystal facets engineering and its room temperature gas sensing properties under light assistance was studied. It was found that the heterojunction showed outstanding room temperature NO2 sensing performance with a high response of 208.66 toward 10 ppm NO2, together with excellent recovery characteristics and selectivity. The gas sensing mechanism study suggested that high-energy {221} crystal facets of SnO2 and MoS2 directly formed Z-scheme heterojunction, which could greatly improve the separation efficiency of photo-generated carriers with high redox capacity. Moreover, {221} facets greatly enhanced adsorption ability towards NO2. This work not only opens up the application of Z-scheme heterojunctions in gas sensing, which will greatly promotes the development of room temperature light-assisted gas sensors, but also provides a new idea for the construction of direct Z-scheme heterojunctions through crystal facets engineering.
Collapse
Affiliation(s)
- Yong Yang
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330098, Jiangxi, PR China.
| | - Wufei Gong
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330098, Jiangxi, PR China
| | - Xin Li
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330098, Jiangxi, PR China
| | - Yuan Liu
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330098, Jiangxi, PR China
| | - Yan Liang
- Department of Artificial Intelligence, Jiangxi University of Technology, Nanchang 330022, Jiangxi, PR China
| | - Bin Chen
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, PR China; Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, PR China
| | - Yanxing Yang
- Department of Physics, New Jersey Institute of Technology, Newark, NJ 07102-1982, USA
| | - Xingfang Luo
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330098, Jiangxi, PR China
| | - Keng Xu
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330098, Jiangxi, PR China
| | - Cailei Yuan
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang 330098, Jiangxi, PR China
| |
Collapse
|
11
|
Zhang B, Wang J, Wei Q, Yu P, Zhang S, Xu Y, Dong Y, Ni Y, Ao J, Xia Y. Visible Light-Induced Room-Temperature Formaldehyde Gas Sensor Based on Porous Three-Dimensional ZnO Nanorod Clusters with Rich Oxygen Vacancies. ACS OMEGA 2022; 7:22861-22871. [PMID: 35811897 PMCID: PMC9260931 DOI: 10.1021/acsomega.2c02613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Oxygen vacancy (VO) is a kind of primary point defect that extensively exists in semiconductor metal oxides (SMOs). Owing to some of its inherent qualities, an artificial manipulation of VO content in one material has evolved into a hot research field, which is deemed to be capable of modulating band structures and surface characteristics of SMOs. Specific to the gas-sensing area, VO engineering of sensing materials has become an effective means in enhancing sensor response and inducing light-enhanced sensing. In this work, a high-efficiency microwave hydrothermal treatment was utilized to prepare a VO-rich ZnO sample without additional reagents. The X-ray photoelectron spectroscopy test revealed a significant increase in VO proportion, which was from 9.21% in commercial ZnO to 36.27% in synthesized VO-rich ZnO possessing three-dimensional and air-permeable microstructures. The subsequent UV-vis-NIR absorption and photoluminescence spectroscopy indicated an extension absorption in the visible region and band gap reduction of VO-rich ZnO. It turned out that the VO-rich ZnO-based sensor exhibited a considerable response of 63% toward 1 ppm HCHO at room temperature (RT, 25 °C) under visible light irradiation. Particularly, the response/recovery time was only 32/20 s for 1 ppm HCHO and further shortened to 10/5 s for 10 ppm HCHO, which was an excellent performance and comparable to most sensors working at high temperatures. The results in this work strongly suggested the availability of VO engineering and also provided a meaningful candidate for researchers to develop high-performance RT sensors detecting volatile organic compounds.
Collapse
Affiliation(s)
- Bo Zhang
- Engineering
Research Center of IoT Technology Applications (Ministry of Education),
Department of Electronic Engineering, Institute of Advanced Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Jing Wang
- Key
Laboratory of Synthetic and Biological Colloids (Ministry of Education),
School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Qufu Wei
- Key
Laboratory of Eco-Textiles (Ministry of Education), Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Pingping Yu
- Engineering
Research Center of IoT Technology Applications (Ministry of Education),
Department of Electronic Engineering, Institute of Advanced Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Shuai Zhang
- Engineering
Research Center of IoT Technology Applications (Ministry of Education),
Department of Electronic Engineering, Institute of Advanced Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Yin Xu
- Engineering
Research Center of IoT Technology Applications (Ministry of Education),
Department of Electronic Engineering, Institute of Advanced Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Yue Dong
- Engineering
Research Center of IoT Technology Applications (Ministry of Education),
Department of Electronic Engineering, Institute of Advanced Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Yi Ni
- Engineering
Research Center of IoT Technology Applications (Ministry of Education),
Department of Electronic Engineering, Institute of Advanced Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Jinping Ao
- Engineering
Research Center of IoT Technology Applications (Ministry of Education),
Department of Electronic Engineering, Institute of Advanced Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Yi Xia
- Research
Center for Analysis and Measurement, Kunming
University of Science and Technology, and Analytic & Testing Research
Center of Yunnan, Kunming 650093, China
| |
Collapse
|
12
|
Liu J, Xin T, Yang Z, Hao W, Wang Y, Hao J. Bi 2S 3/ZnS heterostructures for H 2S sensing in the dark: the synergy of increased surface-adsorbed oxygen and charge transfer. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01378a] [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
Bi2S3/ZnS heterostructures with increased surface-adsorbed oxygen and charge transfer in the dark were designed and used to achieve ppb level H2S detection at room temperature.
Collapse
Affiliation(s)
- Jiaying Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Tiezhu Xin
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Zizhen Yang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Weixun Hao
- State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers, Harbin Boiler Company Limited, Harbin 150046, P. R. China
| | - You Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education, Harbin 150001, P. R. China
| | - Juanyuan Hao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education, Harbin 150001, P. R. China
| |
Collapse
|