A thermo-responsive polymer-tethered and Pd NP loaded UiO-66 NMOF for biphasic CB dechlorination

Bing-Jian Yao; Qi-Juan Fu; Ai-Xiang Li; Xiao-Man Zhang; Yan-An Li; Yu-Bin Dong

doi:10.1039/C8GC03651A

A thermo-responsive polymer-tethered and Pd NP loaded UiO-66 NMOF for biphasic CB dechlorination†

Bing-Jian Yao,‡^a Qi-Juan Fu,‡^a Ai-Xiang Li,^b Xiao-Man Zhang,^a Yan-An Li

^a and Yu-Bin Dong

*^a

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* Corresponding authors

^a College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China
E-mail: yubindong@sdnu.edu.cn

^b School of Materials Science and Engineering, Shandong University of Technology, Zibo, P. R. China

Abstract

Herein, we report a poly(N-isopropylacrylamide) sulfide (PNIPAM-S-) brush-tethered and Pd nanoparticle (NP) loaded UiO-66 type NMOF, namely Pd@UiO-66-S-PNIPAM, based on a NMOF–polymer covalent composite approach. The obtained multifunctional composite material can be a highly efficient Pickering emulsifier to stabilize the toluene-in-water emulsion; furthermore, it promotes the biphasic chlorobenzene (CB) dechlorination at the toluene–water interface in excellent yields at room temperature. More importantly, the Pd@UiO-66-S-PNIPAM emulsifier is thermo-responsive and can trigger emulsification at room temperature (25 °C) and demulsification at an elevated temperature (45 °C) of the toluene droplets, which makes product–catalyst in situ separation and recycling feasible. This temperature switchable Pickering emulsion catalytic system can be reused at least five times without any loss of its catalytic activity.

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DOI: https://doi.org/10.1039/C8GC03651A
Article type: Paper
Submitted: 21 Nov 2018
Accepted: 28 Jan 2019
First published: 29 Jan 2019

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Green Chem., 2019,21, 1625-1634

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A thermo-responsive polymer-tethered and Pd NP loaded UiO-66 NMOF for biphasic CB dechlorination

B. Yao, Q. Fu, A. Li, X. Zhang, Y. Li and Y. Dong, Green Chem., 2019, 21, 1625 DOI: 10.1039/C8GC03651A

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Green Chemistry

A thermo-responsive polymer-tethered and Pd NP loaded UiO-66 NMOF for biphasic CB dechlorination†

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A thermo-responsive polymer-tethered and Pd NP loaded UiO-66 NMOF for biphasic CB dechlorination

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