Preparation of the crosslinked GO/PAA aerogel and its adsorption properties for Pb(II) ions
The graphene oxide(GO)/polyacrylic acid(PAA) was prepared by in situ polymerization in graphene oxide lamellae, and crosslinked graphene oxide/polyacrylic acid complex(CLGO/PAA) was formed by esterification reaction between 1,4-butanediol and carboxylic acid of PAA at same time. The CLGO/PAA aerogel...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ab726a |
| _version_ | 1827868992131301376 |
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| author | Qingqing Wang Liling Lei Xiyang Kang Xiqi Su Fangcao Wang Cong Wang Junhong Zhao Zhijun Chen |
| author_facet | Qingqing Wang Liling Lei Xiyang Kang Xiqi Su Fangcao Wang Cong Wang Junhong Zhao Zhijun Chen |
| author_sort | Qingqing Wang |
| collection | DOAJ |
| description | The graphene oxide(GO)/polyacrylic acid(PAA) was prepared by in situ polymerization in graphene oxide lamellae, and crosslinked graphene oxide/polyacrylic acid complex(CLGO/PAA) was formed by esterification reaction between 1,4-butanediol and carboxylic acid of PAA at same time. The CLGO/PAA aerogel was prepared by freeze drying method. The CLGO/PAA aerogel has good stability and high saturated adsorption capacity for the adsorption of Pb(II) ions in water. The structure and properties of the CLGO/PAA aerogel were characterized by using x-ray diffractometry(XRD), field emission scanning electron microscopy (FESEM), infrared spectroscopy(FT-IR), and atomic absorption spectrometer(AAS), respectively. The results show that the prepared CLGO/PAA aerogel possess elliptical pore structure. In addition, the adsorption properties of the CLGO/PAA aerogel for Pb(II) in water were studied under different pH, different concentrations of Pb(II), contact time and number of adsorbent cycles. The results show that the adsorption amount of Pb(II) could reach to 640 mg g ^−1 at the initial concentration of Pb(II) was 500 mg l ^−1 , and the adsorption equilibrium could be reached after 60 min. The adsorption amount for Pb(II) was still 143 mg g ^−1 after 5 times cycle. |
| first_indexed | 2024-03-12T15:38:55Z |
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| id | doaj.art-1c00e43abae743239f54f31df0d76973 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:38:55Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
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| series | Materials Research Express |
| spelling | doaj.art-1c00e43abae743239f54f31df0d769732023-08-09T16:03:48ZengIOP PublishingMaterials Research Express2053-15912020-01-017202551410.1088/2053-1591/ab726aPreparation of the crosslinked GO/PAA aerogel and its adsorption properties for Pb(II) ionsQingqing Wang0Liling Lei1Xiyang Kang2Xiqi Su3Fangcao Wang4Cong Wang5Junhong Zhao6Zhijun Chen7https://orcid.org/0000-0002-8274-8252School of Material and Chemical Engineering, Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry , Zhengzhou 450002, People’s Republic of China; Henan Engineering Research Center of Chemical Engineering Separation Process Intensification, People’s Republic of ChinaSchool of Material and Chemical Engineering, Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry , Zhengzhou 450002, People’s Republic of China; Henan Engineering Research Center of Chemical Engineering Separation Process Intensification, People’s Republic of ChinaSchool of Material and Chemical Engineering, Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry , Zhengzhou 450002, People’s Republic of China; Henan Engineering Research Center of Chemical Engineering Separation Process Intensification, People’s Republic of ChinaSchool of Material and Chemical Engineering, Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry , Zhengzhou 450002, People’s Republic of China; Henan Engineering Research Center of Chemical Engineering Separation Process Intensification, People’s Republic of ChinaSchool of Material and Chemical Engineering, Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry , Zhengzhou 450002, People’s Republic of China; Henan Engineering Research Center of Chemical Engineering Separation Process Intensification, People’s Republic of ChinaSchool of Material and Chemical Engineering, Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry , Zhengzhou 450002, People’s Republic of China; Henan Engineering Research Center of Chemical Engineering Separation Process Intensification, People’s Republic of ChinaSchool of Material and Chemical Engineering, Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry , Zhengzhou 450002, People’s Republic of China; Henan Engineering Research Center of Chemical Engineering Separation Process Intensification, People’s Republic of ChinaSchool of Material and Chemical Engineering, Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry , Zhengzhou 450002, People’s Republic of China; Henan Engineering Research Center of Chemical Engineering Separation Process Intensification, People’s Republic of ChinaThe graphene oxide(GO)/polyacrylic acid(PAA) was prepared by in situ polymerization in graphene oxide lamellae, and crosslinked graphene oxide/polyacrylic acid complex(CLGO/PAA) was formed by esterification reaction between 1,4-butanediol and carboxylic acid of PAA at same time. The CLGO/PAA aerogel was prepared by freeze drying method. The CLGO/PAA aerogel has good stability and high saturated adsorption capacity for the adsorption of Pb(II) ions in water. The structure and properties of the CLGO/PAA aerogel were characterized by using x-ray diffractometry(XRD), field emission scanning electron microscopy (FESEM), infrared spectroscopy(FT-IR), and atomic absorption spectrometer(AAS), respectively. The results show that the prepared CLGO/PAA aerogel possess elliptical pore structure. In addition, the adsorption properties of the CLGO/PAA aerogel for Pb(II) in water were studied under different pH, different concentrations of Pb(II), contact time and number of adsorbent cycles. The results show that the adsorption amount of Pb(II) could reach to 640 mg g ^−1 at the initial concentration of Pb(II) was 500 mg l ^−1 , and the adsorption equilibrium could be reached after 60 min. The adsorption amount for Pb(II) was still 143 mg g ^−1 after 5 times cycle.https://doi.org/10.1088/2053-1591/ab726acrosslinkedgraphene oxidepolyacrylic acidaerogelPb(II)adsorption |
| spellingShingle | Qingqing Wang Liling Lei Xiyang Kang Xiqi Su Fangcao Wang Cong Wang Junhong Zhao Zhijun Chen Preparation of the crosslinked GO/PAA aerogel and its adsorption properties for Pb(II) ions Materials Research Express crosslinked graphene oxide polyacrylic acid aerogel Pb(II) adsorption |
| title | Preparation of the crosslinked GO/PAA aerogel and its adsorption properties for Pb(II) ions |
| title_full | Preparation of the crosslinked GO/PAA aerogel and its adsorption properties for Pb(II) ions |
| title_fullStr | Preparation of the crosslinked GO/PAA aerogel and its adsorption properties for Pb(II) ions |
| title_full_unstemmed | Preparation of the crosslinked GO/PAA aerogel and its adsorption properties for Pb(II) ions |
| title_short | Preparation of the crosslinked GO/PAA aerogel and its adsorption properties for Pb(II) ions |
| title_sort | preparation of the crosslinked go paa aerogel and its adsorption properties for pb ii ions |
| topic | crosslinked graphene oxide polyacrylic acid aerogel Pb(II) adsorption |
| url | https://doi.org/10.1088/2053-1591/ab726a |
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