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以零化学足迹将六价铬还原为三价铬：硼氢化物交换树脂和聚合物负载碱

Reducing Hexavalent Chromium to Trivalent Chromium with Zero Chemical Footprint: Borohydride Exchange Resin and a Polymer-Supported Base.

作者信息

Regan John, Dushaj Nicholas, Stinchfield Georgia

机构信息

Department of Chemistry and Biochemistry, Manhattan College, Riverdale, New York 10471, United States.

出版信息

ACS Omega. 2019 Jul 2;4(7):11554-11557. doi: 10.1021/acsomega.9b01194. eCollection 2019 Jul 31.

DOI:10.1021/acsomega.9b01194
PMID:31460261
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6682018/
Abstract

Aqueous hexavalent chromium, Cr(VI), is rapidly reduced to trivalent chromium, Cr(III), by exposure to (polystyrylmethyl)trimethylammonium borohydride and with Amberlite-supported mild bases in a heterogeneous environment. Post-reaction removal of the insoluble reagents leaves no remediation-based chemical footprint in the source water. Time dependence with stirred and static conditions is discussed.

摘要

在非均相环境中，通过暴露于（聚苯乙烯基甲基）三甲基硼氢化铵和负载在Amberlite上的温和碱，六价铬的水溶液（Cr(VI)）会迅速还原为三价铬（Cr(III)）。反应后去除不溶性试剂不会在源水中留下基于修复的化学痕迹。讨论了搅拌和静态条件下的时间依赖性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac7b/6682018/2790d414a5dc/ao-2019-01194a_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac7b/6682018/80a297338e6e/ao-2019-01194a_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac7b/6682018/72fa7327d76e/ao-2019-01194a_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac7b/6682018/3a1bab6ddeb6/ao-2019-01194a_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac7b/6682018/2790d414a5dc/ao-2019-01194a_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac7b/6682018/80a297338e6e/ao-2019-01194a_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac7b/6682018/72fa7327d76e/ao-2019-01194a_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac7b/6682018/3a1bab6ddeb6/ao-2019-01194a_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac7b/6682018/2790d414a5dc/ao-2019-01194a_0001.jpg

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本文引用的文献

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Chemosphere. 2016 Feb;144:374-81. doi: 10.1016/j.chemosphere.2015.08.043. Epub 2015 Sep 15.
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Organic electron donors as powerful single-electron reducing agents in organic synthesis.有机电子给体在有机合成中作为强大的单电子还原剂。
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Oxidation of Cr(III) to Cr(VI) during chlorination of drinking water.
饮用水氯化过程中三价铬（Cr(III)）氧化为六价铬（Cr(VI)）。
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Heterogeneous kinetics of the reduction of chromium (VI) by elemental iron.元素铁还原六价铬的非均相动力学。
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Reduction of hexavalent chromium by ascorbic acid in aqueous solutions.水溶液中抗坏血酸对六价铬的还原作用。
Chemosphere. 2004 Nov;57(7):609-13. doi: 10.1016/j.chemosphere.2004.07.031.
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Reduction of hexavalent chromium by H2O2 in acidic solutions.
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