Low-Cost Microwave-Assisted Partial Pseudomorphic Transformation of Biogenic Silica.

ABSTRACT: This work introduces a cost and time efficient procedure to specifically increase mesopore volume and specific surface area of biogenic silica (specific surface area: 147 m² g^-1 and mesopore volume: 0.23 cm³ g^-1) to make it suitable for applications in adsorption or as catalyst support. The target values were a specific surface area of ~500 m² g^-1 and a mesopore volume of ~0.40-0.50 cm³ g^-1 as these values are industrially relevant and are reached by potential concurring products such as precipitated silica, silica gel, and fumed silica. The applied process of partial pseudomorphic transformation was carried out as a single reaction step in a microwave reactor instead of commonly used convective heating

SUBMITTER: Schneider D 

PROVIDER: S-EPMC6705224 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature