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用于增强光催化性能的二维少层氧化石墨烯/π共轭聚酰亚胺复合材料的纳米结构

Nanoarchitecture of a Two-Dimensional Few-Layer Graphene Oxide/π-Conjugated Polyimide Composite for Enhanced Photocatalytic Performance.

作者信息

Luo Zhiang, Zhang Duoping, Ma Chenghai, Zhu Meitong, Li Binhao, Song Laidi, Yang Shiqi

机构信息

School of Chemical Engineering, Qinghai University, Xining810016, China.

出版信息

ACS Omega. 2023 Jan 14;8(4):4072-4080. doi: 10.1021/acsomega.2c07010. eCollection 2023 Jan 31.

DOI:10.1021/acsomega.2c07010
PMID:36743011
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9893452/
Abstract

A novel two-dimensional graphene oxide/sulfur-doped polyimide (GO/SPI) hybrid polymer photocatalyst was synthesized by a facile ultrasonic chemical method. The characterization results showed that the skeleton structure of SPI was not changed when the few layers of GO were wrapped on the surface. Due to the excellent charge transport characteristics of GO and the strong π-π stacking interaction between two-dimensional GO and SPI, the photogenerated carrier transport capability of the GO/SPI composites was significantly enhanced compared with that of SPI. The efficient transmission and separation of photogenerated charge carriers significantly improve the photocatalytic degradation of the methyl orange activity of the GO/SPI composite. This work provides a facile and new way for the synthesis of metal-free inorganic-organic composite photocatalysts with high efficiency and low cost.

摘要

通过简便的超声化学方法合成了一种新型的二维氧化石墨烯/硫掺杂聚酰亚胺（GO/SPI）杂化聚合物光催化剂。表征结果表明，当几层GO包裹在SPI表面时，SPI的骨架结构未发生变化。由于GO具有优异的电荷传输特性以及二维GO与SPI之间存在强π-π堆积相互作用，与SPI相比，GO/SPI复合材料的光生载流子传输能力显著增强。光生电荷载流子的高效传输和分离显著提高了GO/SPI复合材料对甲基橙的光催化降解活性。这项工作为高效、低成本合成无金属无机-有机复合光催化剂提供了一种简便的新方法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2c2/9893452/e83037198824/ao2c07010_0011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2c2/9893452/78d156f41f9d/ao2c07010_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2c2/9893452/45150b508983/ao2c07010_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2c2/9893452/f22ab30fb92b/ao2c07010_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2c2/9893452/8e5224087f08/ao2c07010_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2c2/9893452/141c2d43cb54/ao2c07010_0009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c2c2/9893452/e83037198824/ao2c07010_0011.jpg

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