Rapid Analysis of Heavy Metal Element Adsorption by SCG Based on LIBS Technology
Rapid evaluation and real-time detection of adsorption materials are particularly critical in the adsorption treatment of heavy metal wastewater. However, most elemental analysis methods have complex pretreatment procedures and are time-consuming, making real-time analysis difficult to achieve. A la...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/15/e3sconf_eppc2025_02010.pdf |
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| author | Xie Hairui You Libing Fang Xiaodong Li Leyi Ding Haokai Zhou Zhengqi Zhang Guanyang Zhang Dongjian |
| author_facet | Xie Hairui You Libing Fang Xiaodong Li Leyi Ding Haokai Zhou Zhengqi Zhang Guanyang Zhang Dongjian |
| author_sort | Xie Hairui |
| collection | DOAJ |
| description | Rapid evaluation and real-time detection of adsorption materials are particularly critical in the adsorption treatment of heavy metal wastewater. However, most elemental analysis methods have complex pretreatment procedures and are time-consuming, making real-time analysis difficult to achieve. A laser-induced breakdown spectroscopy device with a 248nm KrF excimer laser as the excitation source was used to study the rapid test of heavy metal content in wastewater absorbed by coffee grounds (SCG). This study prepared 16 sets of spent coffee grounds calibration samples and 8 sets of SCG adsorption samples by externally adding heavy metal elements. After optimizing the experimental system, the characteristic spectral lines of Cd II 226.510nm and Cu I 324.754nm were analyzed. Using Cu as the internal standard element, the Cd/Cu intensity ratios from the spectral tests of 16 calibration samples were fitted with the different Cd mass fractions in SCG to obtain a calibration model, with the polynomial fitting determination coefficient (R²) reaching 0.998. Eight adsorption samples were tested, and the calibration model was used to analyze the adsorption capacity of SCG for Cd solutions of different concentrations. The adsorption rate increased with the concentration of Cd solution, reaching a maximum of 18.96 mg/g. This work provides a reference for the rapid elemental analysis of adsorbent materials during the adsorption treatment of heavy metal wastewater. |
| format | Article |
| id | doaj-art-24cd418f2cb54bacad17c49dee66404c |
| institution | DOAJ |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-24cd418f2cb54bacad17c49dee66404c2025-08-20T03:16:21ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016150201010.1051/e3sconf/202561502010e3sconf_eppc2025_02010Rapid Analysis of Heavy Metal Element Adsorption by SCG Based on LIBS TechnologyXie Hairui0You Libing1Fang Xiaodong2Li Leyi3Ding Haokai4Zhou Zhengqi5Zhang Guanyang6Zhang Dongjian7College of New Materials and New Energies, Shenzhen Technology UniversityCollege of New Materials and New Energies, Shenzhen Technology UniversityCollege of New Materials and New Energies, Shenzhen Technology UniversityFuture Technology School, Shenzhen Technology UniversityFuture Technology School, Shenzhen Technology UniversityFuture Technology School, Shenzhen Technology UniversityFuture Technology School, Shenzhen Technology UniversityFuture Technology School, Shenzhen Technology UniversityRapid evaluation and real-time detection of adsorption materials are particularly critical in the adsorption treatment of heavy metal wastewater. However, most elemental analysis methods have complex pretreatment procedures and are time-consuming, making real-time analysis difficult to achieve. A laser-induced breakdown spectroscopy device with a 248nm KrF excimer laser as the excitation source was used to study the rapid test of heavy metal content in wastewater absorbed by coffee grounds (SCG). This study prepared 16 sets of spent coffee grounds calibration samples and 8 sets of SCG adsorption samples by externally adding heavy metal elements. After optimizing the experimental system, the characteristic spectral lines of Cd II 226.510nm and Cu I 324.754nm were analyzed. Using Cu as the internal standard element, the Cd/Cu intensity ratios from the spectral tests of 16 calibration samples were fitted with the different Cd mass fractions in SCG to obtain a calibration model, with the polynomial fitting determination coefficient (R²) reaching 0.998. Eight adsorption samples were tested, and the calibration model was used to analyze the adsorption capacity of SCG for Cd solutions of different concentrations. The adsorption rate increased with the concentration of Cd solution, reaching a maximum of 18.96 mg/g. This work provides a reference for the rapid elemental analysis of adsorbent materials during the adsorption treatment of heavy metal wastewater.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/15/e3sconf_eppc2025_02010.pdf |
| spellingShingle | Xie Hairui You Libing Fang Xiaodong Li Leyi Ding Haokai Zhou Zhengqi Zhang Guanyang Zhang Dongjian Rapid Analysis of Heavy Metal Element Adsorption by SCG Based on LIBS Technology E3S Web of Conferences |
| title | Rapid Analysis of Heavy Metal Element Adsorption by SCG Based on LIBS Technology |
| title_full | Rapid Analysis of Heavy Metal Element Adsorption by SCG Based on LIBS Technology |
| title_fullStr | Rapid Analysis of Heavy Metal Element Adsorption by SCG Based on LIBS Technology |
| title_full_unstemmed | Rapid Analysis of Heavy Metal Element Adsorption by SCG Based on LIBS Technology |
| title_short | Rapid Analysis of Heavy Metal Element Adsorption by SCG Based on LIBS Technology |
| title_sort | rapid analysis of heavy metal element adsorption by scg based on libs technology |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/15/e3sconf_eppc2025_02010.pdf |
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