Wood-derived fiber/BiOBr/AgBr sponges by in situ synthesis for separation of emulsions and degradation of dyes
The removal of emulsified oil and organic dyes from wastewater is of extreme challenge owing to their difference of physical and chemical properties. Here we choose cellulose fibers derived from wood as supporting materials and the irregular flake-like BiOBr and sphere-like AgBr are in situ grown on...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-12-01
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| Series: | Materials & Design |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127519306173 |
| _version_ | 1798043052332285952 |
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| author | Peng Xu Jin Yang Yu Chen Yong Li Xiaohua Jia Haojie Song |
| author_facet | Peng Xu Jin Yang Yu Chen Yong Li Xiaohua Jia Haojie Song |
| author_sort | Peng Xu |
| collection | DOAJ |
| description | The removal of emulsified oil and organic dyes from wastewater is of extreme challenge owing to their difference of physical and chemical properties. Here we choose cellulose fibers derived from wood as supporting materials and the irregular flake-like BiOBr and sphere-like AgBr are in situ grown on the fibers via freeze-drying, which successfully create wood-derived fiber/BiOBr/AgBr (WFBA) sponge for wastewater treatment. The obtained WFBA sponge reveals favorable mechanical strength at a strain of 60% and 50 cycles of compression tests. In view of the superhydrophilicity and underwater superoleophobicity of WFBA sponge, it can be used for separating surfactant-stabilized kerosene-in-water emulsions with oil rejection ration higher than 99.91%, and simultaneously adsorbing organic dyes with removal efficiency >99.99%. Furthermore, the polluted WFBA sponge is capable of realizing dye degradation under Xe lamp, solar light and fluorescent lamp due to its enhanced photocatalytic activity. Thus, the regenerated sponge can take full advantage of functionalities of emulsion separation and dye adsorption, as presented by that the oil rejection ration still keeps as high as 98.23% and removal dye efficiency remained over 99.90% after five cycles of filtration. This study provides a feasible and scalable approach to engineer versatile materials for wastewater treatment. Keywords: Wood-derived fiber, WFBA sponge, Emulsion separation, Dye adsorption, Photocatalytic regeneration |
| first_indexed | 2024-04-11T22:44:14Z |
| format | Article |
| id | doaj.art-474af0773a9041dfa24a3870656de237 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-11T22:44:14Z |
| publishDate | 2019-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-474af0773a9041dfa24a3870656de2372022-12-22T03:58:49ZengElsevierMaterials & Design0264-12752019-12-01183Wood-derived fiber/BiOBr/AgBr sponges by in situ synthesis for separation of emulsions and degradation of dyesPeng Xu0Jin Yang1Yu Chen2Yong Li3Xiaohua Jia4Haojie Song5School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR China; Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, PR ChinaSchool of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR China; Corresponding authors.School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR ChinaSchool of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR ChinaSchool of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR ChinaSchool of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR China; Corresponding authors.The removal of emulsified oil and organic dyes from wastewater is of extreme challenge owing to their difference of physical and chemical properties. Here we choose cellulose fibers derived from wood as supporting materials and the irregular flake-like BiOBr and sphere-like AgBr are in situ grown on the fibers via freeze-drying, which successfully create wood-derived fiber/BiOBr/AgBr (WFBA) sponge for wastewater treatment. The obtained WFBA sponge reveals favorable mechanical strength at a strain of 60% and 50 cycles of compression tests. In view of the superhydrophilicity and underwater superoleophobicity of WFBA sponge, it can be used for separating surfactant-stabilized kerosene-in-water emulsions with oil rejection ration higher than 99.91%, and simultaneously adsorbing organic dyes with removal efficiency >99.99%. Furthermore, the polluted WFBA sponge is capable of realizing dye degradation under Xe lamp, solar light and fluorescent lamp due to its enhanced photocatalytic activity. Thus, the regenerated sponge can take full advantage of functionalities of emulsion separation and dye adsorption, as presented by that the oil rejection ration still keeps as high as 98.23% and removal dye efficiency remained over 99.90% after five cycles of filtration. This study provides a feasible and scalable approach to engineer versatile materials for wastewater treatment. Keywords: Wood-derived fiber, WFBA sponge, Emulsion separation, Dye adsorption, Photocatalytic regenerationhttp://www.sciencedirect.com/science/article/pii/S0264127519306173 |
| spellingShingle | Peng Xu Jin Yang Yu Chen Yong Li Xiaohua Jia Haojie Song Wood-derived fiber/BiOBr/AgBr sponges by in situ synthesis for separation of emulsions and degradation of dyes Materials & Design |
| title | Wood-derived fiber/BiOBr/AgBr sponges by in situ synthesis for separation of emulsions and degradation of dyes |
| title_full | Wood-derived fiber/BiOBr/AgBr sponges by in situ synthesis for separation of emulsions and degradation of dyes |
| title_fullStr | Wood-derived fiber/BiOBr/AgBr sponges by in situ synthesis for separation of emulsions and degradation of dyes |
| title_full_unstemmed | Wood-derived fiber/BiOBr/AgBr sponges by in situ synthesis for separation of emulsions and degradation of dyes |
| title_short | Wood-derived fiber/BiOBr/AgBr sponges by in situ synthesis for separation of emulsions and degradation of dyes |
| title_sort | wood derived fiber biobr agbr sponges by in situ synthesis for separation of emulsions and degradation of dyes |
| url | http://www.sciencedirect.com/science/article/pii/S0264127519306173 |
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