Extraction and physical characterization of amorphous silica made from corn cob ash at variable pH conditions via sol gel processing

다국어 초록 (Multilingual Abstract)

Herein, we disclose a novel approach for the synthesis of nano-silica using corn cob ash (CCA). Also, weidentify that silica is amorphous at pH 7 and crystalline at pH 10 at the critical salt concentration formonovalent NaOH. A zeta potential study was used to characterize the surface charge of nanoparticles.
The silica nanoparticles were characterized by SEM-EDS, XRD, FTIR, TEM and XRD confirmed thecrystalline nature and TEM images showed spherical silica nanoparticles. Brunauer–Emmett–Teller,cation exchange capacity, and N2 analyses showed excellent support material for catalysis at pH 7. TheCCA-mediated synthesized particles showed excellent stability at pH 7.

참고문헌 (Reference)

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