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Chen S, Duan X, Liu C, Liu S, Li P, Su D, Sun X, Guo Y, Chen W, Wang Z. La-Ce-MOF nanocomposite coated quartz crystal microbalance gas sensor for the detection of amine gases and formaldehyde. JOURNAL OF HAZARDOUS MATERIALS 2024; 467:133672. [PMID: 38325099 DOI: 10.1016/j.jhazmat.2024.133672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/18/2024] [Accepted: 01/29/2024] [Indexed: 02/09/2024]
Abstract
Trimethylamine (TMA), Dimethylamine (DMA), Ammonia (NH3) and formaldehyde (HCHO) are typical volatile gases and able to cause great damage to the environment and the human body, and they may appear along in some particular cases such as marine meat spoilage. However, gas sensors can detect all the 4 hazardous gases simultaneously have rarely been reported. In this study, a quartz crystal microbalance (QCM) gas sensor modified with La-Ce-MOF was employed for the detection of 4 target gases (TMA, DMA, NH3 and HCHO). The sensor exhibited excellent stability (63 days), selectivity (3.51 Hz/(μmoL/L) for TMA, 4.19 Hz/(μmoL/L) for DMA, 3.14·Hz/(μmoL/L) for NH3 and 3.08·Hz/(μmoL/L) for HCHO), robustness and sensitivity towards target gases detection. Vienna Ab-initio Simulation Package calculations showed that this superior sensing performance was attributed to the preferential adsorption of target gas molecules onto the nanomicrospheres via hydrogen bond. The adsorption energy was - 0.4329 eV for TMA, - 0.5204 eV for DMA, - 0.6823 eV for NH3 and - 0.7576 eV for HCHO, all of which are physically adsorbed. In the detection of hazardous gases, sensor surface active sites were often susceptible to environmental factors and interfering substances, leading to a decrease in the sensitivity of the gas sensor, which in turn affects the signal accuracy in practical applications. This issue has been effectively addressed and the sensor has been implemented for the assessment of the salmon meat freshness, which may contribute to further advancements in the development of QCM gas sensors for monitoring food quality, human beings health and environment safety.
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Affiliation(s)
- Shihao Chen
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Xiaoyi Duan
- School of Chemical and Chemical Engineering, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Cong Liu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Suqi Liu
- School of Food and Health, Zhejiang A&F University, No. 666 Wusu street, Hangzhou 311300, China
| | - Pei Li
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Dianbin Su
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Xia Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Yemin Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Wei Chen
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China.
| | - Zhenhe Wang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China.
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Peng Y, Pan T, Chen C, Zhang Y, Yuan G, Liu D, Pu X, Xiong W. In Situ Synthesis of NH 2-MIL-53-Al/PAN Nanofibers for Removal Co(II) through an Electrospinning Process. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2567-2576. [PMID: 38267385 DOI: 10.1021/acs.langmuir.3c02837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
In this study, researchers developed a novel composite material called NH2-MIL-53-Al/PAN, which consists of metal-organic frameworks (MOFs) grown on electrospun PAN nanofibers (NFs). The successful formation of the composite was confirmed by X-ray diffraction (XRD) and Fourier transform infrared (FTIR), and the hydrophilicity of NH2-MIL-53-Al/PAN was demonstrated by the water contact angle (WCA). Batch experiments were conducted to investigate the adsorption performance of Co(II) under different conditions. The maximum adsorption capacity reached 58.72 mg/g, and almost 95% of the adsorption was achieved within the first 6 h. The adsorption process was found to be spontaneous and endothermic and followed the pseudo-second-order kinetics and Langmuir models. Chemisorption and molecular layer adsorption are the main mechanisms of adsorption, and X-ray photoelectron spectroscopy (XPS) analysis further reveals that the interaction between the adsorbent and cobalt is a coordination interaction. In this study, NH2-MIL-53-Al was grown in situ on PAN to ensure effective loading of MOFs and prevent agglomeration during the NF mixing process. This approach successfully addressed the challenge of exposing active sites within the embedded MOF crystals. Additionally, it overcame the difficulty of recycling traditional MOF adsorbents. As a result, the exceptional performance of MOF NFs offers a promising solution for the efficient removal of cobalt-containing wastewater.
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Affiliation(s)
- Yinyin Peng
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Ting Pan
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Chuang Chen
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Yuchen Zhang
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Guoyuan Yuan
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Derong Liu
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Xiaoqin Pu
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Wei Xiong
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
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