PMID- 30614680 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20190205 LR - 20190215 IS - 1944-8252 (Electronic) IS - 1944-8244 (Linking) VI - 11 IP - 4 DP - 2019 Jan 30 TI - Controlled Manipulation of Metal-Organic Framework Layers to Nanometer Precision Inside Large Mesochannels of Ordered Mesoporous Silica for Enhanced Removal of Bisphenol A from Water. PG - 4328-4337 LID - 10.1021/acsami.8b17508 [doi] AB - Considerable attention has been paid on the design of hierarchical porous metal-organic framework (MOF) composites, which not only enhances the performance but also broadens the applications of MOFs. So far, controlled manipulation of nanometer-thick MOF layers in ordered mesochannels, while retaining their respective intrinsic properties, is still a main challenge because of the difficulty of growing MOFs in confined space. Herein, using a step-by-step coordination method, the formation of a hierarchical micro-mesoporous hybrid with a wall (channel wall and coating layer) thickness of up to 8.0 nm and open pore size down to 7.7 nm has been achieved based on large mesoporous SBA-15, and the wall thickness with nanometer precision can be controlled by adjusting the growth cycles of zeolite imidazolate framework-8 (ZIF-8) coating layers. Compared to pure ZIF-8, the obtained ZIF-8@SBA-15 composites showed more than 2-fold enhancement in adsorption capacity and approximately 20-fold improvement in the adsorption rate constant for bisphenol A in water, which could be ascribed to the synergistic effects of the high adsorption ability from ZIF-8 and the fast diffusion property from SBA-15. More importantly, the degraded ZIF-8@SBA-15 composite can be completely restored by a simple immersion into 2-methylimidazole solution. The easy restorability and good reusability further enable ZIF-8@SBA-15 as a promising adsorbent for effectively removing organic contaminants from water. FAU - Peng, Junyu AU - Peng J AD - Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116011 , China. AD - University of Chinese Academy of Science , Beijing 100049 , China. FAU - Li, Yun AU - Li Y AD - Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116011 , China. FAU - Sun, Xiaoli AU - Sun X AD - Lishui University , Lishui 323000 , China. FAU - Huang, Chaonan AU - Huang C AD - Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116011 , China. AD - University of Chinese Academy of Science , Beijing 100049 , China. FAU - Jin, Jing AU - Jin J AD - Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116011 , China. FAU - Wang, Jincheng AU - Wang J AD - Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116011 , China. FAU - Chen, Jiping AU - Chen J AUID- ORCID: 0000-0001-9404-1687 AD - Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116011 , China. LA - eng PT - Journal Article DEP - 20190118 PL - United States TA - ACS Appl Mater Interfaces JT - ACS applied materials & interfaces JID - 101504991 OTO - NOTNLM OT - BPA adsorption OT - ZIF-8@SBA-15 composite OT - fast mass transfer OT - nanometer precision OT - stepwise coordination EDAT- 2019/01/08 06:00 MHDA- 2019/01/08 06:01 CRDT- 2019/01/08 06:00 PHST- 2019/01/08 06:00 [pubmed] PHST- 2019/01/08 06:01 [medline] PHST- 2019/01/08 06:00 [entrez] AID - 10.1021/acsami.8b17508 [doi] PST - ppublish SO - ACS Appl Mater Interfaces. 2019 Jan 30;11(4):4328-4337. doi: 10.1021/acsami.8b17508. Epub 2019 Jan 18.