Meso-/macro-porous microspheres confining Au nanoparticles based on PDLA/PLLA stereo-complex membrane for continuous flowing catalysis and separation
文献类型：期刊论文
| 作者 | Zhang, Guoying; Zhang, Lei; Liu, Fu; Xiong, Zhu; Zhong, Yun; Li, Tiantian; Lin, Haibo; Fang, Qile |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2018 |
| 卷号 | 344页码:299-310 |
| 关键词 | Waste-water Treatment Gold Nanoparticles Mesoporous Silica Carbon Nanotubes Ultrafiltration Membrane Polypropylene Membranes Bioreactor Technology Reduction Degradation Performance |
| 英文摘要 | In this work, we report the continuous flowing catalysis of meso-/macro-porous microspheres confining Au nanoparticles based on Poly (L-lactic acid)/Poly (D-lactic acid) (PDLA/PLLA) stereo-complex membrane. Plentiful meso-/macro-porous microspheres (1-2 mu m diameter) were assembled inside the stereo-complex Poly (lactic acid) (PLA) membrane through the phase inversion, which were thought to play a critical role on robustly capturing and confining Au nanoparticles (30-40 nm diameter) with the loading content of 1.56 g/m(2), as demonstrated by the SEM, TEM, EDX and XPS. The Au nanoparticles-loaded stereo-complex PLA membrane exhibits an instantaneous reduction for 4-nitrophenol in a continuous flowing operation with the dynamic reactive constant 386 min(-1) under the water flux of 262.8-1440 L/m(2).h, which was similar to 2900 fold higher than the static catalytic. Moreover, the catalytic membrane keeps above 90% conversion even after 140 min continuous flowing. In addition, The Au nanoparticles-loaded stereo-complex PLA membrane demonstrated the better bovine serum albumin (BSA) antifouling and ink colloid rejection. All results verified that the stereo-complex PLA membrane provided a feasible platform for meso-/macro-porous microspheres confining Au nanoparticles as high efficient heterogeneous catalysts. The proposed strategy could be extended to other robust heterogeneous catalysts for membrane catalytic applications. |
| 学科主题 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/17316]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Zhang, Guoying,Zhang, Lei,Liu, Fu,et al. Meso-/macro-porous microspheres confining Au nanoparticles based on PDLA/PLLA stereo-complex membrane for continuous flowing catalysis and separation[J]. CHEMICAL ENGINEERING JOURNAL,2018,344:299-310. |
| APA | Zhang, Guoying.,Zhang, Lei.,Liu, Fu.,Xiong, Zhu.,Zhong, Yun.,...&Fang, Qile.(2018).Meso-/macro-porous microspheres confining Au nanoparticles based on PDLA/PLLA stereo-complex membrane for continuous flowing catalysis and separation.CHEMICAL ENGINEERING JOURNAL,344,299-310. |
| MLA | Zhang, Guoying,et al."Meso-/macro-porous microspheres confining Au nanoparticles based on PDLA/PLLA stereo-complex membrane for continuous flowing catalysis and separation".CHEMICAL ENGINEERING JOURNAL 344(2018):299-310. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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