Catecholic Coating and Silver Hybridization of Chitin Nanocrystals for Ultrafiltration Membrane with Continuous Flow Catalysis and Gold Recovery
文献类型：期刊论文
| 作者 | Wang, Yanwei1,2; Zhu, Luting1; You, Jun1 ; Chen, Fushan2; Zong, Lu1; Yan, Xiaofei1; Li, Chaoxu1
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| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
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| 出版日期 | 2017-11-01 |
| 卷号 | 5期号:11页码:10673-10681 |
| 关键词 | Chitin Nanocrystal Catecholic Chemistry Ag Nanoparticles Ultrafiltration Membranes Water Purification |
| DOI | 10.1021/acssuschemeng.7b02633 |
| 文献子类 | Article |
| 英文摘要 | Despite great advantages of chitin for water purification, current researches have lacked the intensive study for the utilization of chitin in high-flux filters. To tackle this, we proposed, for the first time, a facile method for the construction of multifunctional nanoporous chitin ultrafiltration membranes derived from renewable marine resources (shells of shrimp and crab). Chitin nanocrystals with average diameter and length of 43.3 and 446.1 nm were prepared by H2SO4 hydrolysis, and a simple vacuum-filtration method was utilized to convert these uniform dispersed nanocrystals to nanoporous membranes. To greatly improve the permeation flux and functionality of the filtration membranes, a bioinspired dopamine coating procedure was adopted to intercalate high content silver nanoparticles (57.2 wt %) into the chitin nanocrystal matrix, which might construct interfacial regions and foster low-resistance channels for enhancing solvent permeability. The resulting hybrid chitin membranes possessed numerous interconnected nanopores and its thickness could be easily tuned from 100 to 4000 nm by the volume of filtered nanocrystal suspensions. They allow fast permeation of water during vacuum assisted filtration. Typically, the flux of 100 nm thick hybrid filtration membranes with similar to 4 nm cutoff was up to 13400 L m(-2) h(-1) bar(-1), which was nearly 3 orders of magnitude higher than that of commercial filtration membranes. More importantly, the hybridization of Ag nanoparticles also offered the membranes with continuous flow properties, for example, super catalytic activity and substitution reactivity in decomposing toxic organic pollutants and recycling noble Au ions in water. |
| WOS关键词 | DISPERSED AG NANOPARTICLES ; CARBON HYBRID MEMBRANES ; IN-SITU SYNTHESIS ; WATER-PURIFICATION ; NANOFILTRATION MEMBRANE ; MOLECULE SEPARATION ; GRAPHENE OXIDE ; REDUCTION ; 4-NITROPHENOL ; MICROSPHERES |
| WOS研究方向 | Chemistry ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000414825900128 |
| 资助机构 | National Natural Science Foundation of China(21474125 ; Chinese "1000 Youth Talent Program" ; Shandong "Taishan Youth Scholar Program" ; Shandong Provincial Natural Science Foundation(JQ201609) ; Shandong Collaborative Innovation Centre for Marine Biomass Fiber Materials and Textiles ; 51603224) |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/9684]  |
| 专题 | 青岛生物能源与过程研究所_仿生智能材料团队 |
| 作者单位 | 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Songling Rd 189, Qingdao 266101, Peoples R China 2.Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Key Lab Sensor Anal Tumor Marker, Minist Educ, Zhengzhou Rd 53, Zhengzhou 266042, Henan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yanwei,Zhu, Luting,You, Jun,et al. Catecholic Coating and Silver Hybridization of Chitin Nanocrystals for Ultrafiltration Membrane with Continuous Flow Catalysis and Gold Recovery[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(11):10673-10681. |
| APA | Wang, Yanwei.,Zhu, Luting.,You, Jun.,Chen, Fushan.,Zong, Lu.,...&Li, Chaoxu.(2017).Catecholic Coating and Silver Hybridization of Chitin Nanocrystals for Ultrafiltration Membrane with Continuous Flow Catalysis and Gold Recovery.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(11),10673-10681. |
| MLA | Wang, Yanwei,et al."Catecholic Coating and Silver Hybridization of Chitin Nanocrystals for Ultrafiltration Membrane with Continuous Flow Catalysis and Gold Recovery".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.11(2017):10673-10681. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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