Fluoride removal process
AssigneeETH Zurich
InventorsQingrui ZHANG, Raffaele MEZZENGA, Sreenath BOLISETTY
Life of this patent
Estimating the term…
Abstract
The present invention relates to the field of water treatment/fluoride removal and to materials/devices useful in such processes. Specifically, the invention provides for hybrid materials comprising amyloid fibrils and ZrO2; and to composite materials further comprising a support material. The invention further provides for the treatment of water using such hybrid or composite materials.
Claims21
1-14. (canceled)
A hybrid material comprising amyloid fibrils and nanoparticulate ZrO2.
A hybrid material comprising amyloid fibrils and nanoparticulate ZrO2;
- wherein the amyloid fibrils and the nanoparticulate ZrO2 remain separate and distinct and are randomly mixed with one another;
- and wherein the nanoparticulate ZrO2 is below 50 nm size.
A method for manufacturing a composite material comprising the steps of:
- (i) forming a solution comprising Zr(IV) precursor and amyloid fibrils under acidic aqueous conditions;
- (ii) adjusting pH until precipitation occurs, preferably to pH 3.5-4.0, to thereby obtain a first suspension;
- (iii) combining the thus obtained first suspension with a dispersion comprising a support material to thereby obtain a second suspension;
- and
- (iv) filtering the second suspension to thereby obtain the composite material.
Dependencies are inferred from the claim text.