Synthesis and Characterization of Porous Hydrogel Based on Lignin and Polyacrylamide
A porous lignin-containing hydrogel was developed for dye removal via graft copolymerization of acetic acid lignin (AAL) and acrylamide (AAm), in the presence of ethyleneglycol dimethacrylate (EGDMA) as a crosslinker and H2O2 as an initiator. AAL was characterized by FT-IR and TGA. After being washe...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2014-06-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_3_4369_Feng_Porous_Hydrogel_Lignin |
| _version_ | 1818970052300374016 |
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| author | Qinghua Feng Jinling Li Heli Cheng Fangeng Chen Yimin Xie |
| author_facet | Qinghua Feng Jinling Li Heli Cheng Fangeng Chen Yimin Xie |
| author_sort | Qinghua Feng |
| collection | DOAJ |
| description | A porous lignin-containing hydrogel was developed for dye removal via graft copolymerization of acetic acid lignin (AAL) and acrylamide (AAm), in the presence of ethyleneglycol dimethacrylate (EGDMA) as a crosslinker and H2O2 as an initiator. AAL was characterized by FT-IR and TGA. After being washed to remove impurities, the hydrogel was characterized by FT-IR, TGA, SEM, and swelling ratio. FT-IR spectra suggested that AAL was present in the hydrogel. The TGA curves revealed that the introduction of AAL had no significant impact on the thermal stability of PAAm. SEM images showed that the honeycomb-like structure of the hydrogel was improved with increasing AAL content. The swelling ratio data showed that the hydrogel with a high AAL/AAm ratio was sensitive to pH. Furthermore, increased lignin content of the hydrogel favors the dye adsorption. |
| first_indexed | 2024-12-20T14:30:21Z |
| format | Article |
| id | doaj.art-0db8505a119043fbaa0e6f3b4e9621b2 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-12-20T14:30:21Z |
| publishDate | 2014-06-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-0db8505a119043fbaa0e6f3b4e9621b22022-12-21T19:37:38ZengNorth Carolina State UniversityBioResources1930-21261930-21262014-06-01934369438110.15376/biores.9.3.4369-4381Synthesis and Characterization of Porous Hydrogel Based on Lignin and PolyacrylamideQinghua Feng0Jinling Li1Heli Cheng2Fangeng Chen3Yimin Xie4Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China; Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology, Jinan, 250353, ChinaHubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, ChinaHubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, ChinaHubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, ChinaA porous lignin-containing hydrogel was developed for dye removal via graft copolymerization of acetic acid lignin (AAL) and acrylamide (AAm), in the presence of ethyleneglycol dimethacrylate (EGDMA) as a crosslinker and H2O2 as an initiator. AAL was characterized by FT-IR and TGA. After being washed to remove impurities, the hydrogel was characterized by FT-IR, TGA, SEM, and swelling ratio. FT-IR spectra suggested that AAL was present in the hydrogel. The TGA curves revealed that the introduction of AAL had no significant impact on the thermal stability of PAAm. SEM images showed that the honeycomb-like structure of the hydrogel was improved with increasing AAL content. The swelling ratio data showed that the hydrogel with a high AAL/AAm ratio was sensitive to pH. Furthermore, increased lignin content of the hydrogel favors the dye adsorption.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_3_4369_Feng_Porous_Hydrogel_LigninAcetic acid ligninHydrogelPolyacrylamidePorous structureDye removal |
| spellingShingle | Qinghua Feng Jinling Li Heli Cheng Fangeng Chen Yimin Xie Synthesis and Characterization of Porous Hydrogel Based on Lignin and Polyacrylamide BioResources Acetic acid lignin Hydrogel Polyacrylamide Porous structure Dye removal |
| title | Synthesis and Characterization of Porous Hydrogel Based on Lignin and Polyacrylamide |
| title_full | Synthesis and Characterization of Porous Hydrogel Based on Lignin and Polyacrylamide |
| title_fullStr | Synthesis and Characterization of Porous Hydrogel Based on Lignin and Polyacrylamide |
| title_full_unstemmed | Synthesis and Characterization of Porous Hydrogel Based on Lignin and Polyacrylamide |
| title_short | Synthesis and Characterization of Porous Hydrogel Based on Lignin and Polyacrylamide |
| title_sort | synthesis and characterization of porous hydrogel based on lignin and polyacrylamide |
| topic | Acetic acid lignin Hydrogel Polyacrylamide Porous structure Dye removal |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_3_4369_Feng_Porous_Hydrogel_Lignin |
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