The invention belongs to the field of
high polymer materials and biological medicines, and relates to a ferroferric
oxide loaded
nickel carbide layer
nanotube and a preparation method and applicationthereof. The ferroferric
oxide loaded
nickel carbide layer
nanotube (Fe3O4@C-NT / Ni) is in the shape of a hollow tube, has excellent
electromagnetism, catalytic activity, biological compatibility and water dispersibility, has activity similar to that of
peroxidase, and is used for detecting and analyzing
hydrogen peroxide and bio-active substances. The preparation method of Fe3O4@C-NT / Ni is simpleand efficient, high in recycling rate, safe and
environmentally friendly. The catalytic activity of Fe3O4@C-NT / Ni is similar to that of
peroxidase, Fe3O4@C-NT / Ni is used for
redox reaction of hydrogenperoxide as an
electron acceptor, and qualitative and quantitative measurement of the
hydrogen peroxide is realized; and Fe3O4@C-NT / Ni is also used for qualitative and quantitative measurement of bio-active substances which take the
hydrogen peroxide as a constant-ratio product. Compared with the prior art, the method is simple and speedy, economical and
environmentally friendly, wide in detection line, high in sensitivity, good in selectivity and visual.