PMID- 33434008
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210128
IS  - 1944-8252 (Electronic)
IS  - 1944-8244 (Linking)
VI  - 13
IP  - 3
DP  - 2021 Jan 27
TI  - Synchronous Construction of Hierarchical Porosity and Thiol Functionalization in 
      COFs for Selective Extraction of Cationic Dyes in Water Samples.
PG  - 4352-4363
LID - 10.1021/acsami.0c18902 [doi]
AB  - Pore size and functionalization are two critical factors for covalent organic 
      frameworks (COFs) as effective adsorbents. However, due to the low crystallinity 
      of COFs, it is a grand challenge to accomplish pore diameter adjustment and 
      functionalization at the same time. In this work, we developed a simple and 
      ingenious strategy, cutting off linkage, to synchronously construct hierarchical 
      porosity and modify thiol groups in COFs under mild conditions. The hybrid COFs 
      containing disulfide bonds were designed and synthesized, and then the disulfide 
      bonds were cleaved by glutathione, resulting in the formation of thiol groups as 
      well as the increase in pore size caused by skeleton defects. The pore diameter 
      of thiol-functionalized hierarchical porous COFs (denoted as HP-TpEDA-SH) was 
      concentrated at 2.6 and 3.5 nm. Thanks to the electrostatic attraction of thiol 
      groups to cationic dyes and the higher number of available adsorption sites, the 
      maximum extraction amounts of methylene blue (MB), malachite green (MG), and 
      crystal violet (CV) by HP-TpEDA-SH were 2.6, 2.1, and 3.3 times those of 
      microporous COFs under optimal extraction conditions, respectively. The proposed 
      analytical method (solid-phase extraction-high-performance liquid 
      chromatography/ultraviolet (SPE-HPLC/UV)) with HP-TpEDA-SH as the adsorbent 
      showed low detection limits of 1.3, 0.13, and 0.12 mug.L(-1) for MB, MG, and CV, 
      respectively. The recoveries of three spiked water samples ranged from 81.5 to 
      113.8%, with relative standard deviations (RSDs) less than 9.7%. This work not 
      only opened a new avenue for the preparation of functionalized hierarchical 
      porous COFs but also established an effective method for detecting trace cationic 
      dyes in fishery water.
FAU - Tan, Wei
AU  - Tan W
AD  - State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal 
      Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal 
      University, Guilin 541004, P. R. China.
AD  - Department of Food and Chemical Engineering, Liuzhou Institute of Technology, 
      Liuzhou 545616, P. R. China.
FAU - Wu, Xiaohai
AU  - Wu X
AD  - State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal 
      Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal 
      University, Guilin 541004, P. R. China.
FAU - Liu, Wenren
AU  - Liu W
AD  - State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal 
      Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal 
      University, Guilin 541004, P. R. China.
FAU - Ye, Fanggui
AU  - Ye F
AUID- ORCID: 0000-0002-2530-3695
AD  - State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal 
      Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal 
      University, Guilin 541004, P. R. China.
FAU - Zhao, Shulin
AU  - Zhao S
AUID- ORCID: 0000-0002-2560-042X
AD  - State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal 
      Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal 
      University, Guilin 541004, P. R. China.
LA  - eng
PT  - Journal Article
DEP - 20210112
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
SB  - IM
OTO - NOTNLM
OT  - HPLC/UV
OT  - cationic dyes
OT  - hierarchical porous COFs
OT  - solid-phase extraction
OT  - thiol functionalization
EDAT- 2021/01/13 06:00
MHDA- 2021/01/13 06:01
CRDT- 2021/01/12 17:18
PHST- 2021/01/13 06:00 [pubmed]
PHST- 2021/01/13 06:01 [medline]
PHST- 2021/01/12 17:18 [entrez]
AID - 10.1021/acsami.0c18902 [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2021 Jan 27;13(3):4352-4363. doi: 
      10.1021/acsami.0c18902. Epub 2021 Jan 12.