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Journal article
Manganese-Doped Cesium Lead Halide Perovskite PMMA Composite Fibrous Membranes by Electrospinning for Photocatalytic and LED Applications
ACS omega, v 10(39), pp 45855-45866
25 Sep 2025
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Abstract
Motivated by the need to reduce toxic organic dyes in wastewaters, we studied the preparation of different amounts of Mn-doped cesium lead halide perovskite in PMMA matrix (CsPbxMn1–xClyBr3–y@PMMA) composite fibrous membranes (CFM) as a photocatalyst to degrade dyes via a one-step in situ electrospinning method. The composite fibrous membranes exhibit excellent environmental stability, attributed to the protective three-dimensional network structure of the electrospun fibers, which shields the internal perovskite nanocrystals from direct contact with water and light. Structural characterization by X-ray diffraction (XRD) reveals that Mn2+ substitution induces a phase transformation from cubic CsPbBr3 to tetragonal CsPbCl3. The optimal Mn/Pb ratio of 2.5:1 achieves excellent photocatalytic activity, degrading 94.7% of methyl orange (MO) within 90 min under Xe lamp irradiation with a rate constant of 0.031 min–1, 4.6 times higher than that of the undoped sample. In addition, a single monochromatic CFM with a blue LED light source can be combined to construct a white LED (WLED) with good chromaticity coordinates (0.3267, 0.3298) and color temperature of 5775 K. This work highlights the great potential of Mn-doped perovskite composite fibrous membranes for practical photocatalytic and LED applications.
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Details
- Title
- Manganese-Doped Cesium Lead Halide Perovskite PMMA Composite Fibrous Membranes by Electrospinning for Photocatalytic and LED Applications
- Creators
- Yujie Cheng - Shanghai Polytechnic UniversityYuang Ji - Shanghai Polytechnic UniversityDonghai Lin - Shanghai Polytechnic UniversityWan Y Shih - Drexel University, School of Biomedical Engineering, Science, and Health SystemsWei-Heng Shih (Corresponding Author) - Drexel University, Materials Science and Engineering
- Publication Details
- ACS omega, v 10(39), pp 45855-45866
- Publisher
- ACS Publications
- Number of pages
- 12
- Grant note
- Science and Technology Commission of Shanghai MunicipalityOverseas Famous Scholar program of Shanghai City GovernmentProgram for Professor of Special Appointment (Eastern Scholar) at SIHL: 22DZ2291100 Shanghai Municipal Science and Technology Commission: 2019J06027 Science Fund for Distinguished Young Scholars of Fujian ProvinceGaoyuan Discipline of Shanghai-Materials Science and Engineering
Wei-Heng Shih thanks the support of the Overseas Famous Scholar program of Shanghai City Government. Donghai Lin thanks the support of the Program for Professor of Special Appointment (Eastern Scholar) at SIHL, Project of Shanghai Municipal Science and Technology Commission (22DZ2291100), Science Fund for Distinguished Young Scholars of Fujian Province (2019J06027), and Gaoyuan Discipline of Shanghai-Materials Science and Engineering.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems; Materials Science and Engineering
- Web of Science ID
- WOS:001582709000001
- Scopus ID
- 2-s2.0-105018508117
- Other Identifier
- 991022116574304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary