Study on the color-changing mechanism and law of visual formaldehyde sensing system based on hyperbranched polyamines
This study focuses on addressing the limitations associated with most chemical derivatization methods commonly used for formaldehyde detection. These methods often suffer from prolonged derivative times (≥30 min) and complex procedures, which hinder their ability to meet the requirements of real-tim...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651323008266 |
| _version_ | 1797744161683668992 |
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| author | Xiaoxing Shen Ke zhang Hao Huang Zhihua Cui Ziheng Yan Longshuai Jia Keqi Qian Qing Guo Pu Gao |
| author_facet | Xiaoxing Shen Ke zhang Hao Huang Zhihua Cui Ziheng Yan Longshuai Jia Keqi Qian Qing Guo Pu Gao |
| author_sort | Xiaoxing Shen |
| collection | DOAJ |
| description | This study focuses on addressing the limitations associated with most chemical derivatization methods commonly used for formaldehyde detection. These methods often suffer from prolonged derivative times (≥30 min) and complex procedures, which hinder their ability to meet the requirements of real-time and accurate sensing. In this research, a novel formaldehyde indicator system based on hyperbranched polyamine molecule was developed, and its mechanism and principles of color change were investigated. The findings revealed that hyperbranched polyamine molecule effectively reacts with formaldehyde, leading to a reduction in electron cloud density in the amine group N and subsequently causing a decrease in pH value. This reaction enables the visualization of formaldehyde detection through changes in the indicator spectrum. Moreover, the spectral variation pattern exhibits a strong linear correlation with the formaldehyde concentration when the PAMAM concentration is optimized. The detection limit of this method was determined to be 1.8 ppm. Notably, the reaction between PAMAM and formaldehyde is almost instantaneous, the color change is insensitive to temperature, and the method demonstrates high selectivity. Overall, this research contributes to the advancement of real-time formaldehyde monitoring technology and provides insights for future developments in this field. |
| first_indexed | 2024-03-12T15:05:47Z |
| format | Article |
| id | doaj.art-da325f735fce457ebf8d72172402bd6d |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-03-12T15:05:47Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-da325f735fce457ebf8d72172402bd6d2023-08-13T04:52:04ZengElsevierEcotoxicology and Environmental Safety0147-65132023-09-01262115322Study on the color-changing mechanism and law of visual formaldehyde sensing system based on hyperbranched polyaminesXiaoxing Shen0Ke zhang1Hao Huang2Zhihua Cui3Ziheng Yan4Longshuai Jia5Keqi Qian6Qing Guo7Pu Gao8College of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, China; Jiaxing key Laboratory of Preparation and Application of Advanced Materials for Energy Conservation and Emission Reduction, Jiaxing 314001,ChinaZhejiang Dinmei Intelligent Decoration Co., Ltd., Jiaxing 314011, ChinaCollege of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, ChinaEngineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China; Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of China, Hangzhou 310018, ChinaCollege of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, ChinaCollege of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, ChinaCollege of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, ChinaZhejiang Dinmei Intelligent Decoration Co., Ltd., Jiaxing 314011, China; Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaCollege of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, China; Jiaxing key Laboratory of Preparation and Application of Advanced Materials for Energy Conservation and Emission Reduction, Jiaxing 314001,China; Corresponding author at: College of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, China.This study focuses on addressing the limitations associated with most chemical derivatization methods commonly used for formaldehyde detection. These methods often suffer from prolonged derivative times (≥30 min) and complex procedures, which hinder their ability to meet the requirements of real-time and accurate sensing. In this research, a novel formaldehyde indicator system based on hyperbranched polyamine molecule was developed, and its mechanism and principles of color change were investigated. The findings revealed that hyperbranched polyamine molecule effectively reacts with formaldehyde, leading to a reduction in electron cloud density in the amine group N and subsequently causing a decrease in pH value. This reaction enables the visualization of formaldehyde detection through changes in the indicator spectrum. Moreover, the spectral variation pattern exhibits a strong linear correlation with the formaldehyde concentration when the PAMAM concentration is optimized. The detection limit of this method was determined to be 1.8 ppm. Notably, the reaction between PAMAM and formaldehyde is almost instantaneous, the color change is insensitive to temperature, and the method demonstrates high selectivity. Overall, this research contributes to the advancement of real-time formaldehyde monitoring technology and provides insights for future developments in this field.http://www.sciencedirect.com/science/article/pii/S0147651323008266Color-changingMechanismHyperbranched polyaminesVisual Formaldehyde SensingPH Value |
| spellingShingle | Xiaoxing Shen Ke zhang Hao Huang Zhihua Cui Ziheng Yan Longshuai Jia Keqi Qian Qing Guo Pu Gao Study on the color-changing mechanism and law of visual formaldehyde sensing system based on hyperbranched polyamines Ecotoxicology and Environmental Safety Color-changing Mechanism Hyperbranched polyamines Visual Formaldehyde Sensing PH Value |
| title | Study on the color-changing mechanism and law of visual formaldehyde sensing system based on hyperbranched polyamines |
| title_full | Study on the color-changing mechanism and law of visual formaldehyde sensing system based on hyperbranched polyamines |
| title_fullStr | Study on the color-changing mechanism and law of visual formaldehyde sensing system based on hyperbranched polyamines |
| title_full_unstemmed | Study on the color-changing mechanism and law of visual formaldehyde sensing system based on hyperbranched polyamines |
| title_short | Study on the color-changing mechanism and law of visual formaldehyde sensing system based on hyperbranched polyamines |
| title_sort | study on the color changing mechanism and law of visual formaldehyde sensing system based on hyperbranched polyamines |
| topic | Color-changing Mechanism Hyperbranched polyamines Visual Formaldehyde Sensing PH Value |
| url | http://www.sciencedirect.com/science/article/pii/S0147651323008266 |
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