Preparation of graphene oxide/chitosan complex and its adsorption properties for heavy metal ions
Graphene oxide hydrosol was added dropwise to the surface of chitosan (CS) to successfully obtain graphene oxide/chitosan composite (GC). The composite material was characterized by scanning electron microscopy and X-ray diffraction. The prepared adsorbent was used to simulate the static adsorption...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2020-06-01
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| Series: | Green Processing and Synthesis |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/gps-2020-0030 |
| _version_ | 1819135355527364608 |
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| author | Li Linbo Zhao Lirong Ma Jian Tian Yuhong |
| author_facet | Li Linbo Zhao Lirong Ma Jian Tian Yuhong |
| author_sort | Li Linbo |
| collection | DOAJ |
| description | Graphene oxide hydrosol was added dropwise to the surface of chitosan (CS) to successfully obtain graphene oxide/chitosan composite (GC). The composite material was characterized by scanning electron microscopy and X-ray diffraction. The prepared adsorbent was used to simulate the static adsorption of copper, lead, and cadmium ions from 100 mL of 50 mg/L simulated wastewater samples. When the pH of the simulated wastewater is 6, initial dosage is 70 mg, adsorption time is 90 min, and temperature is 20°C; the adsorption capacities for copper, lead, and cadmium are 60.7, 48.7, and 32.3 mg/g, respectively. The adsorption and desorption cycle experiments show that the adsorption capacity of GC for copper ions can reach 86% of the initial adsorption capacity after ten cycles. The adsorption of lead ions on the composite conforms to the Freundlich adsorption isotherm model. |
| first_indexed | 2024-12-22T10:17:46Z |
| format | Article |
| id | doaj.art-fc0c1d3312a0487b82054138363dab7d |
| institution | Directory Open Access Journal |
| issn | 2191-9542 2191-9550 |
| language | English |
| last_indexed | 2024-12-22T10:17:46Z |
| publishDate | 2020-06-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Green Processing and Synthesis |
| spelling | doaj.art-fc0c1d3312a0487b82054138363dab7d2022-12-21T18:29:43ZengDe GruyterGreen Processing and Synthesis2191-95422191-95502020-06-019129430310.1515/gps-2020-0030gps-2020-0030Preparation of graphene oxide/chitosan complex and its adsorption properties for heavy metal ionsLi Linbo0Zhao Lirong1Ma Jian2Tian Yuhong3School of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi 710055, ChinaSchool of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi 710055, ChinaSchool of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi 710055, ChinaXi’an University of Architecture and Technology, Xi’an, Shaanxi 710055, ChinaGraphene oxide hydrosol was added dropwise to the surface of chitosan (CS) to successfully obtain graphene oxide/chitosan composite (GC). The composite material was characterized by scanning electron microscopy and X-ray diffraction. The prepared adsorbent was used to simulate the static adsorption of copper, lead, and cadmium ions from 100 mL of 50 mg/L simulated wastewater samples. When the pH of the simulated wastewater is 6, initial dosage is 70 mg, adsorption time is 90 min, and temperature is 20°C; the adsorption capacities for copper, lead, and cadmium are 60.7, 48.7, and 32.3 mg/g, respectively. The adsorption and desorption cycle experiments show that the adsorption capacity of GC for copper ions can reach 86% of the initial adsorption capacity after ten cycles. The adsorption of lead ions on the composite conforms to the Freundlich adsorption isotherm model.https://doi.org/10.1515/gps-2020-0030adsorptionheavy metal iongraphene oxidechitosan |
| spellingShingle | Li Linbo Zhao Lirong Ma Jian Tian Yuhong Preparation of graphene oxide/chitosan complex and its adsorption properties for heavy metal ions Green Processing and Synthesis adsorption heavy metal ion graphene oxide chitosan |
| title | Preparation of graphene oxide/chitosan complex and its adsorption properties for heavy metal ions |
| title_full | Preparation of graphene oxide/chitosan complex and its adsorption properties for heavy metal ions |
| title_fullStr | Preparation of graphene oxide/chitosan complex and its adsorption properties for heavy metal ions |
| title_full_unstemmed | Preparation of graphene oxide/chitosan complex and its adsorption properties for heavy metal ions |
| title_short | Preparation of graphene oxide/chitosan complex and its adsorption properties for heavy metal ions |
| title_sort | preparation of graphene oxide chitosan complex and its adsorption properties for heavy metal ions |
| topic | adsorption heavy metal ion graphene oxide chitosan |
| url | https://doi.org/10.1515/gps-2020-0030 |
| work_keys_str_mv | AT lilinbo preparationofgrapheneoxidechitosancomplexanditsadsorptionpropertiesforheavymetalions AT zhaolirong preparationofgrapheneoxidechitosancomplexanditsadsorptionpropertiesforheavymetalions AT majian preparationofgrapheneoxidechitosancomplexanditsadsorptionpropertiesforheavymetalions AT tianyuhong preparationofgrapheneoxidechitosancomplexanditsadsorptionpropertiesforheavymetalions |