.png){kind=icon}
.png){kind=icon}
Return
Hydroxyl Radical-assisted Synthesis of NaA Zeolite Membranes in an Open System
.png){kind=icon}
PRE
AI
X
S
S
Y
B
Q
J
J
DOI：10.1007/s40242-026-6135-8.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
NaA zeolite membranes are widely utilized in the separation field. However, their large-scale application has been constrained by the requirement of bulky, sealed autoclaves, resulting in high synthesis costs. Herein, we developed a hydroxyl radical-assisted hydrothermal strategy to synthesize NaA membranes. This method enables the synthesis of highly crystalline and continuous NaA membranes within only 8 h at 45 °C in an open system. Notably, we scaled up the synthesis to achieve uniform crystallization on a 10 cm×6 cm substrate, overcoming the scalability limitations inherent to traditional autoclave-based synthesis. The versatility of this approach is further demonstrated by its applicability to diverse substrates, including metal oxides, glass, and polymers. Through a combination of ex-situ characterization techniques [X-ray diffraction (XRD), scanning electron microscopy (SEM)] and spectroscopic analysis [electron paramagnetic resonance (EPR), fluorescence], we confirm the critical role of hydroxyl radicals in accelerating membrane formation. Furthermore, the broad applicability of this method is validated by the successful synthesis of high-quality FAU zeolite membranes. This work establishes a new paradigm for zeolite membrane synthesis, paving the way for their industrial-scale production and broader practical applications.
Keywords:
NaA zeolite membrane
Hydroxyl radical
Open system
Large-scale production
Journal
IF:
3
Papers:
2.9K
Citations:
2.8K
Organization
Cited Papers