首页>学者
- 综合
- 标题
- 关键词
- 摘要
- 学者
- 期刊-刊名
- 期刊-ISSN
- 会议名称
搜索
高级检索
首页>学者
高级检索
您的检索：
所有字段：(空)
精炼检索结果：
年份
成果类型
收录类型
来源
综合
合作者
语言
清除所有精炼条件
摘要 ：
The robustness of carbon nanomaterials and their potential for ultrahigh permeability has drawn substantial interest for separation processes. However, graphene oxide membranes (GOms) have demonstrated limited viability due to instabilities in their microstructure that lead to failure under cross-flow conditions and applied hydraulic pressure. Here we present a highly stable and ultrapermeable zeolitic imidazolate framework-8 (ZIF-8)-nanocrystal-hybridized GOm that is prepared by ice templating and subsequent in situ crystallization of ZIF-8 at the nanosheet edges. The selective growth of ZIF-8 in the microporous defects enlarges the interlayer spacings while also imparting mechanical integrity to the laminate framework, thus producing a stable microstructure capable of maintaining a water permeability of 60 l m-2 h-1 bar-1 (30-fold higher than GOm) for 180 h. Furthermore, the mitigation of microporous defects via ZIF-8 growth increased the permselectivity of methyl blue molecules sixfold. Low-field nuclear magnetic resonance was employed to characterize the porous structure of our membranes and confirm the tailored growth of ZIF-8. Our technique for tuning the membrane microstructure opens opportunities for developing next-generation nanofiltration membranes.
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Zhang Wen-Hai , Yin Ming-Jie , Zhao Qiang et al. Graphene oxide membranes with stable porous structure for ultrafast water transport. [J]. | Nature nanotechnology , 2021 , 16 (3) : 337-343 . |
| MLA | Zhang Wen-Hai et al. "Graphene oxide membranes with stable porous structure for ultrafast water transport." . | Nature nanotechnology 16 . 3 (2021) : 337-343 . |
| APA | Zhang Wen-Hai , Yin Ming-Jie , Zhao Qiang , Jin Cheng-Gang , Wang Naixin , Ji Shulan et al. Graphene oxide membranes with stable porous structure for ultrafast water transport. . | Nature nanotechnology , 2021 , 16 (3) , 337-343 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
膜技术在有机溶剂体系分离领域具有广阔的应用前景,但其在应用过程中选择性与渗透性博弈的Trade-off现象是限制其发展的主要瓶颈.在保证分离层致密完整的前提下,构筑高效稳定的选择性传质通道为解决该问题提供了新策略,其中具有二维片层结构、丰富的功能化基团及良好机械强度的氧化石墨烯(GO)已成为极具潜力的构筑基元.通过对GO纳米片的功能化改性及对成膜组装过程的优化调控以构筑有机小分子快速传质的渗透通道,可实现GO基复合膜在有机溶剂纳滤和优先透有机物渗透汽化领域的应用.文中总结了近年来课题组在这一领域的研究进展.
关键词 ：
渗透汽化 渗透汽化 有机溶剂纳滤 有机溶剂纳滤 传质通道 传质通道 氧化石墨烯 氧化石墨烯
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 汪林 , 纪树兰 , 王乃鑫 et al. 用于有机溶剂体系分离的氧化石墨烯基复合膜的构筑 [J]. | 膜科学与技术 , 2020 , 40 (01) : 352-359 . |
| MLA | 汪林 et al. "用于有机溶剂体系分离的氧化石墨烯基复合膜的构筑" . | 膜科学与技术 40 . 01 (2020) : 352-359 . |
| APA | 汪林 , 纪树兰 , 王乃鑫 , 张文海 , 安全福 , 王晓琳 . 用于有机溶剂体系分离的氧化石墨烯基复合膜的构筑 . | 膜科学与技术 , 2020 , 40 (01) , 352-359 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
将石墨态氮化碳(g-C_3N_4)和聚电解质络合物(PEC)相结合,以聚丙烯腈(PAN)超滤膜为基底制备PEC/g-C_3N_4杂化膜,考察了杂化膜的渗透汽化有机溶剂脱水性能.用傅里叶红外光谱、扫描电镜和低场核磁等表征了杂化膜的组成、形貌和水在膜中的状态.研究了g-C_3N_4含量、PEC浓度和抽滤溶液体积等成膜因素和进料液温度、进料液水含量、分离体系等操作条件对杂化膜渗透汽化性能的影响.结果表明,在最优制膜条件和操作温度下,PEC/g-C_3N_4杂化膜对进料液中乙醇质量分数为90%的乙醇/水体系通量和透过液水质量分数分别为2 560 g/(m~2·h)和98.0%,且PEC/g-C_3N_...
关键词 ：
g-C_3N_4 g-C_3N_4 PEC PEC 乙醇脱水 乙醇脱水 杂化膜 杂化膜 渗透汽化 渗透汽化
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 李小晴 , 李杰 , 王乃鑫 et al. PEC/g-C_3N_4杂化膜的制备及其渗透汽化性能研究 [J]. | 膜科学与技术 , 2020 , 40 (02) : 67-74 . |
| MLA | 李小晴 et al. "PEC/g-C_3N_4杂化膜的制备及其渗透汽化性能研究" . | 膜科学与技术 40 . 02 (2020) : 67-74 . |
| APA | 李小晴 , 李杰 , 王乃鑫 , 纪树兰 , 安全福 . PEC/g-C_3N_4杂化膜的制备及其渗透汽化性能研究 . | 膜科学与技术 , 2020 , 40 (02) , 67-74 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Organic solvent nanofiltration (OSN) is emerging as an efficient and emerging approach for separation and purification of solute from organic solvents, which however were severely underdeveloped because of the low permeance of membranes. Herein, a novel mixed matrix membrane (MMM) was developed by incorporation of modified mesoporous silica nanoparticle (MSN) into commercially-available polydimethylsiloxane (PDMS) matrix for removal of trace impurities, such as Evans blue or vitamin B12, from different organic solvents. Notably, because of the designed nanoscale spaces originated from MSN, the permeance of the optimized MMM reached up to 31.2 L m(-2).h(-1).MPa-1, around 17-fold enhancement compared with that of pristine PDMS membrane. Low-field nuclear magnetic resonance was employed to trace the solvent state in the MMM. The MMM exhibited high MeOH absorption capability but low-swelling attribute, certificating the high permeance and long-term stability of the MMM. The MMM was stably tested in MeOH solution for more than 80 h, indicating the great promise for future practical OSN applications.
关键词 ：
Low-field nuclear magnetic resonance Low-field nuclear magnetic resonance Mesoporous silica nanoparticles Mesoporous silica nanoparticles Nanohybrid Nanohybrid Organic solvent nanofiltration Organic solvent nanofiltration Polydimethylsiloxane Polydimethylsiloxane
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Li, Chong , Li, Jie , Zhang, Wen-Hai et al. Enhanced permeance for PDMS organic solvent nanofiltration membranes using modified mesoporous silica nanoparticles [J]. | JOURNAL OF MEMBRANE SCIENCE , 2020 , 612 . |
| MLA | Li, Chong et al. "Enhanced permeance for PDMS organic solvent nanofiltration membranes using modified mesoporous silica nanoparticles" . | JOURNAL OF MEMBRANE SCIENCE 612 (2020) . |
| APA | Li, Chong , Li, Jie , Zhang, Wen-Hai , Wang, Naixin , Ji, Shulan , An, Quan-Fu . Enhanced permeance for PDMS organic solvent nanofiltration membranes using modified mesoporous silica nanoparticles . | JOURNAL OF MEMBRANE SCIENCE , 2020 , 612 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Organic solvent nanofiltration (OSN) is an emerging membrane-based technology for molecular separation. The design and fabrication of membranes with unique structures are important to obtain high performance. Herein, ZIF-8 nanoparticles are grown in situ on the surface of graphene oxide (GO) nanosheets and then assembled on a tubular ceramic substrate through a vacuum-assisted assembly method. ZIF-8 anchored on the GO nanosheets is evolved into ZnS polyhedra with a hollow structure through in situ sulfurization. The formed ZnS@GO membrane is composed of a layered structure of GO with the interlayer intercalated by ZnS hollow polyhedra and demonstrates high permeance for organic solvents. Compared to that of the ZIF-8@GO membrane, the permeance of the ZnS@GO membrane is enhanced by 4.4-fold when separating dyes from methanol, indicating their promising potential in the application of organic solvent nanofiltration.
关键词 ：
graphene oxide graphene oxide high permeance high permeance in situ sulfurization in situ sulfurization organic solvent nanofiltration organic solvent nanofiltration ZIF-8 derivatives ZIF-8 derivatives
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Wang, Naixin , Sun, Hao , Yang, Hengyu et al. Hollow Polyhedron-Modified Graphene Oxide Membranes for Organic Solvent Nanofiltration with Enhanced Permeance [J]. | ACS APPLIED NANO MATERIALS , 2020 , 3 (6) : 5874-5880 . |
| MLA | Wang, Naixin et al. "Hollow Polyhedron-Modified Graphene Oxide Membranes for Organic Solvent Nanofiltration with Enhanced Permeance" . | ACS APPLIED NANO MATERIALS 3 . 6 (2020) : 5874-5880 . |
| APA | Wang, Naixin , Sun, Hao , Yang, Hengyu , Li, Xiaoting , Ji, Shulan , An, Quan-Fu . Hollow Polyhedron-Modified Graphene Oxide Membranes for Organic Solvent Nanofiltration with Enhanced Permeance . | ACS APPLIED NANO MATERIALS , 2020 , 3 (6) , 5874-5880 . |
| 导入链接 | NoteExpress RIS BibTex |
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Wang, Naixin , Li, Qian , Li, Xiaoting et al. Vacuum -assisted assembly of iron cage intercalated layered double hydroxide composite membrane for water purification [J]. | JOURNAL OF MEMBRANE SCIENCE , 2020 , 603 . |
| MLA | Wang, Naixin et al. "Vacuum -assisted assembly of iron cage intercalated layered double hydroxide composite membrane for water purification" . | JOURNAL OF MEMBRANE SCIENCE 603 (2020) . |
| APA | Wang, Naixin , Li, Qian , Li, Xiaoting , Zhang, Wenhai , Ji, Shulan , An, Quan-Fu . Vacuum -assisted assembly of iron cage intercalated layered double hydroxide composite membrane for water purification . | JOURNAL OF MEMBRANE SCIENCE , 2020 , 603 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
A defect-free, robust and selective barrier is essential for manufacturing membranes with targeted high permeability and selectivity. Here we report a new route to engineering a separation composite membrane by confining both channels in nanoscale metal organic frameworks (MOFs) and charges in a polyelectrolyte in the inner space of a porous supportviaa counter-diffusion method. A simple thermal annealing treatment of the interface between the MOF, polymer and support favorably reduced voids inside this nano-confinement environment. As this composite membrane combines both the support and barrier as one, it minimizes mass transfer resistance of water molecules. In a separation test, it readily achieved the state-of-the-art permeance. This simple chemical approach to upgrade membrane structures will offer wide opportunities in separation devices.
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Li, Xiaoting , Wang, Naixin , Bao, Xinmin et al. Nano-confinement-inspired metal organic framework/polymer composite separation membranes [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2020 , 8 (33) : 17212-17218 . |
| MLA | Li, Xiaoting et al. "Nano-confinement-inspired metal organic framework/polymer composite separation membranes" . | JOURNAL OF MATERIALS CHEMISTRY A 8 . 33 (2020) : 17212-17218 . |
| APA | Li, Xiaoting , Wang, Naixin , Bao, Xinmin , Li, Qian , Li, Jie , Xie, Ya-Bo et al. Nano-confinement-inspired metal organic framework/polymer composite separation membranes . | JOURNAL OF MATERIALS CHEMISTRY A , 2020 , 8 (33) , 17212-17218 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Building up selective mass transfer channels in polymeric membranes is a promising strategy to fabricate effective separation membranes. Herein, a thioether-functionalized hydrazone-linked covalent organic framework, COF-LZU8, pre-modified by Ag ion, was incorporated for constructing aromatic selective channels within a commercial poly (ether-block amide) (Pebax 2533) membrane. The inside nanochannels of resulting membrane were effectively confirmed by measuring the affinity and the selective free volume to toluene via quartz crystal microbalance and low-field nuclear magnetic resonance. Owing to the selective channels, the Ag-COF-LZU8/Pebax membrane presented a considerably enhanced performance for toluene/n-heptane separation comparing with pristine Pebax membranes. The optimized membrane could perform a permeation flux of 293 g/m(2)h and a separation factor of 4.03 for the separation of 50 wt% toluene/n-heptane mixture.
关键词 ：
Aromatic/aliphatic hydrocarbons Aromatic/aliphatic hydrocarbons Covalent organic frameworks (COFs) Covalent organic frameworks (COFs) Hybrid membrane Hybrid membrane Pebax Pebax Pervaporation Pervaporation
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Zhang, Lilong , Wang, Lin , Wang, Naixin et al. Covalent organic frameworks hybird membrane with optimized mass transport nanochannel for aromatic/aliphatic mixture pervaporation [J]. | JOURNAL OF MEMBRANE SCIENCE , 2020 , 598 . |
| MLA | Zhang, Lilong et al. "Covalent organic frameworks hybird membrane with optimized mass transport nanochannel for aromatic/aliphatic mixture pervaporation" . | JOURNAL OF MEMBRANE SCIENCE 598 (2020) . |
| APA | Zhang, Lilong , Wang, Lin , Wang, Naixin , Guo, Hongxia , Zhang, Wen-Hai , Li, Xiaoting et al. Covalent organic frameworks hybird membrane with optimized mass transport nanochannel for aromatic/aliphatic mixture pervaporation . | JOURNAL OF MEMBRANE SCIENCE , 2020 , 598 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Recovery of butanol is a potential biofuel production process, which can be achieved through membrane separation technology. In this study, Zeolitic Imidazolate Framework-8 (ZIF-8) modified graphene oxide (ZGO) with polyether block amide (PEBA) was deposited on ceramic tubular substrate to prepare composite membrane for bio-butanol recovery. ZGO laminates can be used to form transport channels for butanol molecules to enhance the permeance. The affinity of laminate to butanol was improved because of the hydrophobic ZIF-8 particles. Therefore, the separation performance of ZGO/PEBA membrane was enhanced. The microstructure and chemical property of the ZGO/PEBA membranes were characterized. Different preparation and operation conditions were also investigated to optimize the separation performance. Moreover, ZGO/PEBA composite membranes were evaluated in model acetone-butanol-ethanol (ABE) solution, which also exhibited high butanol recovery performance. Therefore, this facile strategy may provide a potential application in the commercialized ABE fermentation process.
关键词 ：
Biobutanol recovery Biobutanol recovery PEBA PEBA ZIF-8 ZIF-8 Pervaporation Pervaporation Graphene oxide Graphene oxide
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Li, Wenhui , Li, Jie , Wang, Naixin et al. Recovery of bio-butanol from aqueous solution with ZIF-8 modified graphene oxide composite membrane [J]. | JOURNAL OF MEMBRANE SCIENCE , 2020 , 598 . |
| MLA | Li, Wenhui et al. "Recovery of bio-butanol from aqueous solution with ZIF-8 modified graphene oxide composite membrane" . | JOURNAL OF MEMBRANE SCIENCE 598 (2020) . |
| APA | Li, Wenhui , Li, Jie , Wang, Naixin , Li, Xiaoting , Zhang, Yifan , Ye, Qing et al. Recovery of bio-butanol from aqueous solution with ZIF-8 modified graphene oxide composite membrane . | JOURNAL OF MEMBRANE SCIENCE , 2020 , 598 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
渗透汽化是实现芳烃/烷烃混合物高效分离最有潜力的技术之一.以钴铝层状双金属氢氧化物(CoAl-LDH)为掺杂材料,采用浸渍法在管式陶瓷基底上制备了CoAl-LDH/聚合物(Boltorn W3000)杂化膜.通过扫描电镜、原子力显微镜、红外光谱、X射线衍射仪和纳米压痕仪等对杂化膜进行了表征.结果表明,CoAl-LDH在分离层中均匀分布,杂化膜表面的力学强度增加,膜表面粗糙度随着负载量的增加而增加.将杂化膜用于芳烃/烷烃混合体系的分离,对于质量分数50%的甲苯/正庚烷混合体系,进料液温度为40℃时,杂化膜的通量及分离因子分别为287 g/(m~2·h)及4.23.
关键词 ：
杂化膜 杂化膜 双金属氢氧化物 双金属氢氧化物 芳烃/烷烃 芳烃/烷烃 渗透汽化 渗透汽化
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 张丽龙 , 汪林 , 王乃鑫 et al. CoAl-LDH杂化膜的制备及其芳烃/烷烃混合体系分离性能研究 [J]. | 膜科学与技术 , 2019 , 39 (06) : 29-37,79 . |
| MLA | 张丽龙 et al. "CoAl-LDH杂化膜的制备及其芳烃/烷烃混合体系分离性能研究" . | 膜科学与技术 39 . 06 (2019) : 29-37,79 . |
| APA | 张丽龙 , 汪林 , 王乃鑫 , 李晓婷 , 纪树兰 , 安全福 . CoAl-LDH杂化膜的制备及其芳烃/烷烃混合体系分离性能研究 . | 膜科学与技术 , 2019 , 39 (06) , 29-37,79 . |
| 导入链接 | NoteExpress RIS BibTex |
导出
| 数据： |
选中 到 |
| 格式： |
