Porphyrin-Based Conjugated Microporous Polymer Loaded with Nanoscale Zerovalent Iron for the Degradation of Organic Pollutants under Visible Light

被引：6

作者：

Yu, Jiale ^{[1
]}

Hasi, Qi-Meige ^{[1
]}

Guo, Yuyan ^{[1
]}

Song, Lingyan ^{[1
]}

Yin, Min ^{[1
]}

Ma, Lina ^{[1
]}

Han, Zhichao ^{[1
]}

Xiao, Chaohu ^{[2
]}

Zhang, Yuhan ^{[1
]}

Chen, Lihua ^{[1
]}

机构：

[1] Northwest Minzu Univ, Biomass Univ Gansu Prov, Coll Chem Engn, Key Lab Util Environm Friendly Composite Mat & Bio, Lanzhou 730030, Gansu, Peoples R China

[2] Northwest Minzu Univ, Ctr Expt, Lanzhou 730030, Gansu, Peoples R China

来源：

LANGMUIR | 2024年 / 40卷 / 09期

基金：

中国国家自然科学基金;

关键词：

PHOTOCATALYTIC DEGRADATION; REMOVAL;

D O I：

10.1021/acs.langmuir.3c03507

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The degradation of organic dye from waterbodies is of great significance for clean production and environmental remediation. Herein, two porphyrin-based conjugated microporous polymers (CMPs) loaded with nanoscale zerovalent iron (named as Por-CMPs-1-2@nZVI) were successfully fabricated by Sonogashira-Hagihara coupling reactions and the liquid-phase method. The as-synthesized Por-CMPs-1-2@nZVI composites were characterized by various means of analysis, and it was confirmed that Por-CMPs-1-2 loaded with nZVI had good photocatalytic performance. Calculated by ultraviolet-visible spectrum, the band-gap energies of Por-CMPs-1@nZVI and Por-CMPs-2@nZVI were 1.45 and 1.32 eV, respectively, indicating that both can be activated by visible light. The photodegradation of organic dye experiments demonstrated that Por-CMPs-2@nZVI degraded 98.0% of 10 ppm Methylene Blue (MB) within 150 min, which is higher than that of Por-CMPs-1-2 and Por-CMPs-1@nZVI. The experiment of active substance capture and mechanism of ESR confirmed that superoxide anion and hydroxyl radical were the primary valid substances in the photodegradation process of MB. In addition, the preparation of membrane materials was shown to be a successful strategy to realize engineered scale-up production.

引用

页码：4739 / 4750

页数：12

共 47 条

[1] Sulfone-Decorated Conjugated Organic Polymers Activate Oxygen for Photocatalytic Methane Conversion [J].