基于冠醚[4]吡咯的偶氮桥联多孔有机聚合物用于溴的捕获。

Calix[4]pyrrole-Based Azo-Bridged Porous Organic Polymer for Bromine Capture.

机构信息

State Key Laboratory of Materials Processing and Die & Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.

Department of Chemistry, College of Science, and Center for Supramolecular Chemistry & Catalysis, Shanghai. University, Shanghai 200444, China.

出版信息

J Am Chem Soc. 2022 Sep 21;144(37):16755-16760. doi: 10.1021/jacs.2c08327. Epub 2022 Sep 9.

DOI:10.1021/jacs.2c08327

PMID:36085555

Abstract

The toxicity, corrosiveness, and volatility of elemental bromine presents challenges for its safe storage and transportation. Purification from other halogens is also difficult. Here, we report an easy-to-prepare calix[4]pyrrole-based azo-bridged porous organic polymer () that supports efficient bromine capture. was found to capture bromine as a vapor and from a cyclohexane source phase with maximum uptake capacities of 3.6 and 3.4 g·g, respectively. Flow-through adsorption experiments revealed that removes 80% of the bromine from a 4.0 mM cyclohexane solution at a flow rate of 45 mL·h. also allowed the selective capture of bromine from a 1:1 mixture of bromine and iodine in cyclohexane.

摘要

元素溴的毒性、腐蚀性和挥发性使其在安全储存和运输方面面临挑战。从其他卤素中进行提纯也很困难。在这里，我们报告了一种易于制备的基于杯[4]吡咯的偶氮桥联多孔有机聚合物（），它可以有效地捕获溴。发现可以作为蒸汽和环己烷源相捕获溴，最大吸附容量分别为 3.6 和 3.4 g·g。流动吸附实验表明，在 45 mL·h 的流速下，从 4.0 mM 的环己烷溶液中去除了 80%的溴。还可以从环己烷中溴和碘的 1:1 混合物中选择性地捕获溴。