Structural Regulation and Photocatalytic Performance of Carbazole-based Conjugated Porous Polymers Post-modified with <italic style="font-style: italic">β</italic>-Mercaptoethylamine

Lei Wang; Xue-ning Zhang; He-tao Xu; Xiong Chen

doi:10.11777/j.issn1000-3304.2026.26032

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Structural Regulation and Photocatalytic Performance of Carbazole-based Conjugated Porous Polymers Post-modified with β-Mercaptoethylamine

更新时间：2026-04-20

- Structural Regulation and Photocatalytic Performance of Carbazole-based Conjugated Porous Polymers Post-modified with β-Mercaptoethylamine
- Acta Polymerica Sinica Pages: 1-13(2026)
- 作者机构：
  
  1.福州大学化学学院，核生化灾害防护化学全国重点实验室，福州 350116
  2.福州大学化学学院，能源与环境光催化国家重点实验室，福州 350116
- 作者简介：
  
  He-tao Xu, E-mail: hetaoxu@ustc.edu.cn
  Xiong Chen, E-mail: chenxiong987@fzu.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2026.26032
  CLC：
- CSTR：32057.14.GFZXB.2026.7586
- Received：03 February 2026，
  
  Accepted：19 March 2026，
  
  Online First：20 April 2026，
- 稿件说明：
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王蕾, 张雪宁, 徐和涛, 陈雄. β-巯基乙胺后修饰咔唑基共轭多孔聚合物的结构调控及其光催化性能. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26032.

Wang, L.; Zhang, X. N.; Xu, H. T.; Chen, X. Structural regulation and photocatalytic performance of carbazole-based conjugated porous polymers post-modified with β-mercaptoethylamine. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26032.
王蕾, 张雪宁, 徐和涛, 陈雄. β-巯基乙胺后修饰咔唑基共轭多孔聚合物的结构调控及其光催化性能. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26032. DOI： CSTR： 32057.14.GFZXB.2026.7586.

Wang, L.; Zhang, X. N.; Xu, H. T.; Chen, X. Structural regulation and photocatalytic performance of carbazole-based conjugated porous polymers post-modified with β-mercaptoethylamine. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26032. DOI： CSTR： 32057.14.GFZXB.2026.7586.

摘要

在光催化反应中，光催化剂的本征性能直接决定反应效率. 然而，现有光催化剂普遍存在光生载流子复合严重、表面活性位点有限以及亲水性不足等关键问题，严重制约了其实际应用. 针对上述挑战，本研究利用硫醇-炔点击反应，将

-巯基乙胺功能基团系统性引入咔唑基共轭多孔聚合物PEC中，构筑了一系列不同修饰当量的多孔聚合物光催化剂(PEC-1、PEC-4、PEC-8). 通过系统的光电化学与光催化性能表征，探究了

-巯基乙胺官能团引入对材料载流子行为、表面性质及光催化活性的调控机制与构效关系. 研究结果表明，

-巯基乙胺的接枝修饰可显著促进光生载流子的分离与迁移，同时有效提升材料表面亲水性，从而协同增强光催化反应动力学. 其中，PEC-4在光催化产H

反应中表现出最优性能，在可见光照射下其产H

平均速率达184.2 μmol·h

-1

(10 mg催化剂)，在450 nm处表观量子效率达到2.1%. 此外，该多孔功能化聚合物光催化剂在多次循环反应中展现出优异的结构稳定和催化耐久性. 本研究为共轭多孔聚合物光催化剂的功能化精准设计与性能调控提供了一种可行的新策略，并为高效光催化材料的理性构筑提供了重要的实验依据与理论参考.

Abstract

In photocatalytic reactions

the intrinsic properties of photocatalysts directly determine reaction efficiency. However

existing photocatalysts commonly suffer from critical issues such as severe recombination of photogenerated charge carriers

limited surface active sites

and insufficient hydrophilicity

which severely constrain their practical applications. To address these challenges

this study systematically introduced

-mercaptoethylamine functional groups into the carbazole-based conjugated porous polymer PEC

via

a thiol-alkyne click reaction

constructing a series of porous polymer photocatalysts (PEC-1

PEC-4

PEC-8) with varying modification equivalents. Through systematic photoelectrochemical and photocatalytic characterization

the regulation mechanism and structure-function relationship of

-mercaptoethylamine functionalization on carrier behavior

surface properties

and photocatalytic activity were investigated. The results indicate that grafting

-mercaptoethylamine significantly promotes the separation and migration of photogenerated carriers while effectively enhancing the surface hydrophilicity of the material

thereby synergistically improving photocatalytic reaction kinetics. Among these

PEC-4 exhibited opt

imal performance in photocatalytic H

production

achieving an average H

production rate of 184.2 μmol·h

-1

(10 mg catalyst) under visible light irradiation and an apparent quantum efficiency of 2.1% at 450 nm. Furthermore

this porous functionalized polymer photocatalyst demonstrated excellent structural stability and catalytic durability during multiple cyclic reactions. This study provides a feasible new strategy for the precise functionalization design and performance regulation of conjugated porous polymer photocatalysts

offering important experimental evidence and theoretical references for the rational construction of highly efficient photocatalytic materials.

关键词

Keywords

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Structural Regulation and Photocatalytic Performance of Carbazole-based Conjugated Porous Polymers Post-modified with β-Mercaptoethylamine

DOI：10.11777/j.issn1000-3304.2026.26032

摘要

Abstract

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