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An ultra simple 3D bioreactor was prepared via Fe3+ linking to primary amines of melamine sponge (MeS) for cooperative complex formation with enzyme. Laccase worked as a model of enzyme and no chemical modification was employed during the material preparation. The 3D structure of MeS can enhance the enzyme loading amount up to 180 µg/mg, albeit MeS as monolithic material for enzyme immobilization...
A new kind of organic–inorganic hybrid membrane based on sulfonated poly (ether sulfone) (SPES) with different degree of sulfonation (DS) embedded phosphotungstic acid (PWA) was prepared as a heterogeneous acid catalyst for biodiesel production. Three kinds of hybrid membranes with the DS of SPES 9.7, 20.3 and 39.1 % were obtained. The interactions between SPES and PWA in SPES/PWA hybrid membrane...
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