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July 29, 2026CatalystsOpen Access

Spherical Mesoporous Silica Synthesis for Catalytic Applications: pH-Regulated Mesostructural Evolution Mediated by Ostwald Ripening

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Authors

XDXiangxu DuLWL WangYYYuxiang Yang

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Overview

Randomized trial demonstrates the pH-regulated evolution of mesoporous silica structure, highlighting its impact on catalytic performance.

Key Points

  • This research aims to develop a surfactant-free method for synthesizing uniform spherical mesoporous silica for catalytic applications.
  • Utilized a surfactant-free strategy for silica synthesis via Ostwald ripening.
  • Conducted systematic pH modulation around 8.0 to control dissolution-reprecipitation kinetics.
  • Compared methoxychlor removal efficiency with Bi2WO6 and Bi2WO6/MSP under identical conditions.
  • Achieved uniform MSPs with a surface area of up to 484 m2/g and mesopores of approximately 3.02 nm.
  • At pH < 7.5, synthesis yielded polydisperse aggregates; at pH > 8.5, enhanced particle coalescence led to degradation.
  • Bi2WO6/MSP exhibited improved photocatalytic performance due to better dispersion and interfacial contact.

Cite This Study

Du et al. (2026) studied this question.

synapsesocial.com/papers/6a69a24dc8da07d9defa5a06https://doi.org/10.3390/catal16080679
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