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Zhang H, Xiao J, Chen J, Zhang L, Zhang Y, Jin P. Au modified PrFeO3 with hollow tubular structure can be efficient sensing material for H2S detection. Front Bioeng Biotechnol 2022; 10:969870. [PMID: 36091448 PMCID: PMC9449130 DOI: 10.3389/fbioe.2022.969870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 07/27/2022] [Indexed: 11/18/2022] Open
Abstract
The H2S concentration in exhaled breath increases marginally with the progress of periodontal disease, and H2S is considered to be one of the most important gases related to meat and seafood decomposition; however, the concentration of H2S is low and difficult to detect in such scenarios. In this study, Au–PrFeO3 nanocrystalline powders with high specific surface areas and porosities were prepared using an electrospinning method. Our experimental results show that loading Au on the material provides an effective way to increase its gas sensitivity. Au doping can decrease the material’s resistance by adjusting its energy band, allowing more oxygen ions to be adsorbed onto the material’s surface due to a spillover effect. Compared with pure PrFeO3, the response of 3 wt% Au–PrFeO3 is improved by more than 10 times, and the response time is more than 10 s shorter. In addition, the concentration of H2S due to the decomposition of shrimp was detected using the designed gas sensor, where the error was less than 15%, compared with that obtained using a GC-MS method. This study fully demonstrates the potential of Au–PrFeO3 for H2S concentration detection.
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Affiliation(s)
- Heng Zhang
- College of Physics and Electronic Engineering, Taishan University, Taian, Shandong, China
| | - Jing Xiao
- College of Physics and Electronic Engineering, Taishan University, Taian, Shandong, China
- *Correspondence: Jing Xiao, ; Pan Jin,
| | - Jun Chen
- College of Physics and Electronic Engineering, Taishan University, Taian, Shandong, China
| | - Lian Zhang
- College of Physics and Electronic Engineering, Taishan University, Taian, Shandong, China
| | - Yi Zhang
- College of Physics and Electronic Engineering, Taishan University, Taian, Shandong, China
| | - Pan Jin
- Health Science Center, Yangtze University, Jingzhou, Hubei, China
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry, Guangxi Medical University, Nanning, Guangxi, China
- *Correspondence: Jing Xiao, ; Pan Jin,
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Zhang H, Xiao J, Chen J, Wang Y, Zhang L, Yue S, Li S, Huang T, Sun D. Pd-Modified LaFeO3 as a High-Efficiency Gas-Sensing Material for H2S Gas Detection. NANOMATERIALS 2022; 12:nano12142460. [PMID: 35889685 PMCID: PMC9316696 DOI: 10.3390/nano12142460] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/15/2022] [Accepted: 07/15/2022] [Indexed: 02/04/2023]
Abstract
As a typical p-type semiconductor gas-sensing material, LaFeO3 has good response stability to H2S, but its responsiveness is low, and the detection limit is not low enough for large-scale use in the field of gas sensors. To obtain better performance, we synthesized Pd modified LaFeO3 using the sol–gel method. A total of 3 wt% of Pd–LaFeO3 with a high specific surface area had the highest response to H2S (36.29–1 ppm) at 120 °C, with relatively fast response–recovery times (19.62/15.22 s), and it had higher selectivity to H2S with other gases. Finally, we detected the H2S concentrations in the air around the shrimps, and the H2S concentrations that we obtained by the 3 wt% Pd–LaFeO3 in this study were within 10% of those obtained by GC–MS. According to the experimental results, noble-metal surface modification improves the performance of gas-sensing materials, and Pd–LaFeO3 has considerable potential in H2S detection.
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Affiliation(s)
- Heng Zhang
- College of Physics and Electronic Engineering, Taishan University, Taian 271000, China; (H.Z.); (J.C.); (Y.W.); (L.Z.); (S.Y.); (S.L.); (T.H.)
| | - Jing Xiao
- College of Physics and Electronic Engineering, Taishan University, Taian 271000, China; (H.Z.); (J.C.); (Y.W.); (L.Z.); (S.Y.); (S.L.); (T.H.)
- Correspondence: (J.X.); (D.S.)
| | - Jun Chen
- College of Physics and Electronic Engineering, Taishan University, Taian 271000, China; (H.Z.); (J.C.); (Y.W.); (L.Z.); (S.Y.); (S.L.); (T.H.)
| | - Yan Wang
- College of Physics and Electronic Engineering, Taishan University, Taian 271000, China; (H.Z.); (J.C.); (Y.W.); (L.Z.); (S.Y.); (S.L.); (T.H.)
| | - Lian Zhang
- College of Physics and Electronic Engineering, Taishan University, Taian 271000, China; (H.Z.); (J.C.); (Y.W.); (L.Z.); (S.Y.); (S.L.); (T.H.)
| | - Shuai Yue
- College of Physics and Electronic Engineering, Taishan University, Taian 271000, China; (H.Z.); (J.C.); (Y.W.); (L.Z.); (S.Y.); (S.L.); (T.H.)
| | - Suyan Li
- College of Physics and Electronic Engineering, Taishan University, Taian 271000, China; (H.Z.); (J.C.); (Y.W.); (L.Z.); (S.Y.); (S.L.); (T.H.)
| | - Tao Huang
- College of Physics and Electronic Engineering, Taishan University, Taian 271000, China; (H.Z.); (J.C.); (Y.W.); (L.Z.); (S.Y.); (S.L.); (T.H.)
| | - Da Sun
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, National & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China
- Correspondence: (J.X.); (D.S.)
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Zhang R, Deng Z, Shi L, Kumar M, Chang J, Wang S, Fang X, Tong W, Meng G. Pt-Anchored CuCrO 2 for Low-Temperature-Operating High-Performance H 2S Chemiresistors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:24536-24545. [PMID: 35593051 DOI: 10.1021/acsami.2c00619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Recent advances in heterogeneous catalysts indicate that single atoms (SAs), anchored/stabilized on metal oxide nanostructures, exhibit not only high catalyst atom efficiency but also intriguing reactivity and selectivity. Herein, isolated Pt SA-anchored CuCrO2 (CCO) has been designed by a glycine-nitrate solution combustion synthesis (SCS) route. The density of isolated Pt SAs achieves the highest value of ∼100 μm-2 for the 1.39 wt % Pt-anchored CCO sample, which results in the drastically boosted H2S response characteristics, including a high response of 1250 (35 times higher than that of pure CCO) at 10 ppm H2S and a low operating temperature of 100 °C. Except for CH4S, the responses of a 1.39 wt % Pt-anchored CCO chemiresistor to diverse vapors with concentrations of 50-100 ppm are less than 2, exhibiting excellent selectivity. Various ex situ characterizations indicate that the spillover catalytic effect of Pt SA sites, other than the conventional sulfuration-desulfuration mechanism, plays a dominant role in the outstanding H2S response characteristics.
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Affiliation(s)
- Ruofan Zhang
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, China
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, and Key Lab of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences, Hefei 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China
| | - Zanhong Deng
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, and Key Lab of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences, Hefei 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China
| | - Lei Shi
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Mahesh Kumar
- Department of Electrical Engineering, Indian Institute of Technology Jodhpur, Jodhpur 342011, India
| | - Junqing Chang
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, and Key Lab of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences, Hefei 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China
| | - Shimao Wang
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, and Key Lab of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences, Hefei 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China
| | - Xiaodong Fang
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
- Shenzhen Shengfang Technology Company Limited, Shenzhen 518116, China
| | - Wei Tong
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic2 Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
| | - Gang Meng
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, and Key Lab of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences, Hefei 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China
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