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用于光催化染料降解的氮掺杂烷基胺插层层状钛酸盐

Nitrogen-Doped Alkylamine-Intercalated Layered Titanates for Photocatalytic Dye Degradation.

作者信息

A Anto Jeffrey, Nethravathi C, Rajamathi Michael

机构信息

Materials Research Group, Department of Chemistry, St. Joseph's College, 36 Lalbagh Road, Bangalore 560 027, India.

出版信息

ACS Omega. 2019 Jan 17;4(1):1575-1580. doi: 10.1021/acsomega.8b03207. eCollection 2019 Jan 31.

DOI:10.1021/acsomega.8b03207
PMID:31459418
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6648551/
Abstract

A layered titanate, KTiO, is intercalated with various -alkylamines through ion-exchange reaction in aqueous medium. On heating, the intercalated amine is partially deintercalated, yielding nitrogen-doped amine-intercalated titanates. The modified titanates are studied as catalysts in methylene blue degradation under UV irradiation. Heat-treated long-chain amine titanates exhibit better photocatalytic activity in comparison to short chain amine titanates. The improved catalytic activity could be attributed to two factors: (i) increased surface access as the titanate layers are well separated, pillared by the alkylamine chains and (ii) nitrogen doping.

摘要

一种层状钛酸盐KTiO，通过在水介质中的离子交换反应与各种烷基胺进行插层。加热时，插层的胺会部分脱插层，生成氮掺杂的胺插层钛酸盐。对改性钛酸盐作为紫外光照射下亚甲基蓝降解催化剂进行了研究。与短链胺钛酸盐相比，热处理的长链胺钛酸盐表现出更好的光催化活性。催化活性的提高可归因于两个因素：(i) 由于钛酸盐层被烷基胺链很好地隔开并支撑，表面可及性增加；(ii) 氮掺杂。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/d6cf84acb06e/ao-2018-03207d_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/ae8ea5999b31/ao-2018-03207d_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/d0909db01755/ao-2018-03207d_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/cd277c93a65d/ao-2018-03207d_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/0ad5c6aa1a4d/ao-2018-03207d_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/002096beb8d8/ao-2018-03207d_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/d6cf84acb06e/ao-2018-03207d_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/ae8ea5999b31/ao-2018-03207d_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/d0909db01755/ao-2018-03207d_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/cd277c93a65d/ao-2018-03207d_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/0ad5c6aa1a4d/ao-2018-03207d_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/002096beb8d8/ao-2018-03207d_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4706/6648551/d6cf84acb06e/ao-2018-03207d_0006.jpg

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本文引用的文献

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