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超分子卟啉作为一种用于氯仿分解的改进型光催化剂。

Supramolecular porphyrin as an improved photocatalyst for chloroform decomposition.

作者信息

Lopes J M S, Batista A A, Araujo P T, Neto N M Barbosa

机构信息

Department of Physics, Federal University of Roraima Boa Vista RR Brazil

Institute of Natural Sciences, Graduate Program in Physics, Federal University of Pará Belém PA Brazil

出版信息

RSC Adv. 2023 Feb 13;13(8):5473-5482. doi: 10.1039/d2ra07720e. eCollection 2023 Feb 6.

DOI:10.1039/d2ra07720e
PMID:36793300
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9924222/
Abstract

In this work, the outlying decoration of the free-base -(4-tetra) pyridyl porphyrin (HTPyP) with the RuCl(dppb)(5,5'-Me-bipy) ruthenium complex (here named Supra-HTPyP) is observed as an improved molecular photocatalyst for dye-mediated chloroform (CHCl) decomposition one-photon absorption operating in the visible spectral range (532 nm and 645 nm). Supra-HTPyP offers a better option for CHCl photodecomposition when compared to the same process mediated by pristine HTPyP, which requires either excited-state- or UV absorption. The chloroform photodecomposition rates for Supra-HTPyP as well as its excitation mechanisms are explored as a function of distinct laser irradiation conditions.

摘要

在本研究中，自由碱-(4-四)吡啶基卟啉(HTPyP)与RuCl(dppb)(5,5'-甲基联吡啶)钌配合物(此处命名为Supra-HTPyP)的外围修饰被视为一种改进的分子光催化剂，用于染料介导的氯仿(CHCl)分解，该过程在可见光谱范围(532 nm和645 nm)内进行单光子吸收操作。与由原始HTPyP介导的相同过程相比，Supra-HTPyP为CHCl光分解提供了更好的选择，原始HTPyP介导的过程需要激发态或紫外吸收。研究了Supra-HTPyP的氯仿光分解速率及其激发机制与不同激光照射条件的关系。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/af60/9924222/b780a498caef/d2ra07720e-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/af60/9924222/aaa998b4fb75/d2ra07720e-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/af60/9924222/abda5d67c7d9/d2ra07720e-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/af60/9924222/411b3e6f640d/d2ra07720e-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/af60/9924222/b780a498caef/d2ra07720e-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/af60/9924222/aaa998b4fb75/d2ra07720e-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/af60/9924222/abda5d67c7d9/d2ra07720e-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/af60/9924222/411b3e6f640d/d2ra07720e-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/af60/9924222/b780a498caef/d2ra07720e-f6.jpg

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Anaerobic Biodegradation of Chloroform and Dichloromethane with a Enrichment Culture.用富集培养物对氯仿和二氯甲烷的厌氧生物降解。
Appl Environ Microbiol. 2022 Feb 22;88(4):e0197021. doi: 10.1128/AEM.01970-21. Epub 2021 Dec 22.
3
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4
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A simple equipment and colorimetric method for determination of chloroform in water.一种简单的设备和比色法测定水中的氯仿。
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