High-Performance Catalytic Membranes Developed by Chinese Academy of Sciences Slash Pharmaceutical Wastewater Treatment Costs by Thirty Percent

Chinese researchers develop MXene-based catalytic membranes that cut pharmaceutical wastewater treatment costs by 30% while removing antibiotics.

By: AXL Media

Published: Mar 26, 2026, 4:53 AM EDT

Source: Information for this report was sourced from the Hefei Institutes of Physical Science, Chinese Academy of Sciences.

Overcoming the Traditional Barriers of Membrane Filtration

The treatment of pharmaceutical wastewater has long been a challenge for environmental engineers due to the presence of "refractory" contaminants—stable chemical compounds like antibiotics that resist standard biological degradation. While membrane-based catalytic oxidation has shown potential, its transition to large-scale industrial use has been hampered by catalyst leaching, rapid membrane fouling, and the high cost of fabrication. Researchers at the Hefei Institutes of Physical Science have addressed these bottlenecks by developing a series of high-performance membranes that balance oxidation kinetics with efficient physical separation, ensuring that active catalytic sites remain unblocked during extended operation.

The Structural Innovation of MXene Nanosheets

The core of the team’s technological breakthrough lies in the utilization of MXene nanosheets, a class of two-dimensional inorganic compounds known for their high metallic conductivity and structural tunability. By combining these nanosheets with a non-solvent-induced phase separation (NIPS) method, the researchers were able to achieve a uniform dispersion of metal-based catalysts across a polyvinylidene fluoride (PVDF) substrate. This fabrication strategy ensures that the catalysts are stably anchored to the membrane, which significantly strengthens interfacial adhesion and prevents the common problem of catalyst aggregation that typically degrades performance over time.

Integrated Fenton-like Oxidation Systems

The design incorporates a "Fenton-like" catalytic mechanism, a process where a catalyst reacts with hydrogen peroxide to produce highly reactive oxygen species that tear apart complex organic pollutants. The team developed these membranes in both hollow fiber and flat-sheet configurations, allowing for versatile integration into existing industrial infrastructures. When these membranes are coupled into a system that simultaneously performs oxidation and physical separation, they demonstrate an exceptional ability to remove total organic carbon, suspended solids, and ammonia nitrogen ($NH_4^+-N$) from highly concentrated industrial effluent.