Hydrophilicity-Enhanced NH 2 -MIL-88B(Fe) Integrated Photocatalytic Membrane Reactor for Simultaneous Rejection and Degradation of Low-Density Polyethylene in Water Matrices
Source abstract
Abstract
Microplastic (MP) plastic particles with diameters of up to 5 mm have emerged as pervasive global pollutants, posing serious risks to both human and environmental health. In this study, a photocatalytic membrane reactor (PMR) was designed to perform dual functions of filtration and photocatalytic decomposition of low-density polyethylene (LDPE) particles. An NH 2 -modified MIL-88B(Fe) (NM88B) photocatalyst was prepared and then used as a precursor to grow a photocatalyst membrane (MRS-NM88B) on an alumina membrane via the modified reactive seeding (MRS) method. Compared with unmodified MIL-88B(Fe) (M88B), NM88B exhibited higher hydrophilicity with enhanced permeance flux and better photocatalytic performance. The PMR fabricated using the MRS-NM88B membrane successfully rejected and degraded LDPE particles, demonstrating a high LDPE particle removal efficiency of 96.9% under dark conditions and a 22.3% mass loss of LDPE particles under light irradiation. Furthermore, the PMR can be applied to real river water for effective filtration and degradation. The results demonstrate the potential of this PMR for microplastic removal and degradation in wastewater treatment applications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Microplastics and Plastic Pollution · Membrane Separation Technologies · biodegradable polymer synthesis and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemical Engineering, Sustainable Electrochemical Energy Development Center (SEED)
National Taiwan University of Science and Technology
Applied Chemistry, Graduate School of Sciences and Technology for Innovation
Yamaguchi University
Department of Materials Physics
China University of Petroleum (East China)
Department of Chemistry
National Tsing Hua University
Department of Chemical Engineering
National Taiwan University
Funding
National Science and Technology Council · JST SPRING · Yushan Fellow Program by the Ministry of Education in Taiwan · National Taiwan University System innovation cooperation program
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