Interconnected superporous adsorbent prepared via yeast-based Pickering HIPEs for high-efficiency adsorption of Rb+, Cs+ and Sr2+ | |
Department | 甘肃省黏土矿物应用重点实验室 |
Lu TT(逯桃桃)1,2; Zhu YF(朱永峰)1; Wang WB(王文波)1; Qi YX(齐彦兴)1; Wang AQ(王爱勤)1 | |
The second department | 甘肃省黏土矿物应用重点实验室 |
2019-04 | |
Source Publication | Chemical Engineering Journal |
Volume | 361Issue:0Pages:1411-1422 |
Abstract | High internal phase emulsions (HIPEs) template method is an emerging effective method of fabricating highefficiency, orderly porous polymer adsorbents, but the conventional HIPEs template requires harmful surfactants, so the development of surfactant-free green emulsion templates become the subject of great significance. Herein, we prepared a green surfactant-free oil-in-water (O/W) Pickering HIPEs stabilized solely with non-toxic caustic-pretreated yeast (P-Yeast), and used it as template to prepare a novel adsorbent (P-Yeast-PAA) with interconnected superporous structure by a one-step solution polymerization of acrylic acid (AA) monomers in the emulsion. Interestingly, the surfactant-free Pickering-HIPEs exhibited superior stability due to the fine af- finity between P-Yeast and AA monomer, and the pore structure of the adsorbent can be easily regulated by changing the contents of the monomer or the particles used for stabilizing the emulsion. In addition, the adsorbents prepared from P-Yeast based emulsion template have interconnected pore structure, which are significantly superior to other Pickering-HIPEs templates which are hard to form a similar pore structure. The opencell superporous adsorbent containing a large number of eCOO− functional group has a fast capture rate and strong adsorption capability for radioactive Rb+, Cs+ and Sr2+ ions, and the saturated adsorption capacities are 179.69 mg/g (2.10 mmol/g), 229.52 mg/g (1.73 mmol/g) and 166.81 mg/g (1.90 mmol/g), and the equilibrium adsorption time are 30, 40 and 20 min, respectively. The porous adsorbent also has excellent regeneration ability and reusability, and maintains a high adsorption capacity after repeated use of five adsorption-desorption cycles. |
Keyword | Pickering emulsion Yeast Superporous adsorbent Adsorption Metal ions |
MOST Discipline Catalogue | 理学::化学 |
DOI | 10.1016/j.cej.2018.11.006 |
Indexed By | SCI |
If | 8.355 |
Language | 英语 |
Funding Project | 中低内相乳液模板法多孔吸附剂的可控合成及其对铷、铯吸/脱附性能研究 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/25476 |
Collection | 甘肃省黏土矿物应用研究重点实验室 环境材料与生态化学研究发展中心 |
Corresponding Author | Qi YX(齐彦兴); Wang AQ(王爱勤) |
Affiliation | 1.中国科学院兰州化学物理研究所 2.中国科学院大学 |
Corresponding Author Affilication | Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences |
Recommended Citation GB/T 7714 | Lu TT,Zhu YF,Wang WB,et al. Interconnected superporous adsorbent prepared via yeast-based Pickering HIPEs for high-efficiency adsorption of Rb+, Cs+ and Sr2+[J]. Chemical Engineering Journal,2019,361(0):1411-1422. |
APA | Lu TT,Zhu YF,Wang WB,Qi YX,&Wang AQ.(2019).Interconnected superporous adsorbent prepared via yeast-based Pickering HIPEs for high-efficiency adsorption of Rb+, Cs+ and Sr2+.Chemical Engineering Journal,361(0),1411-1422. |
MLA | Lu TT,et al."Interconnected superporous adsorbent prepared via yeast-based Pickering HIPEs for high-efficiency adsorption of Rb+, Cs+ and Sr2+".Chemical Engineering Journal 361.0(2019):1411-1422. |
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