Carbon nitride-binary metal boron oxide composite material-based bisphenol A photochemical sensor and preparation and application thereof

Abstract

The invention discloses a carbon nitride-binary metal boron oxide composite material-based bisphenol A photochemical sensor and preparation and application thereof. The preparation comprises the steps of firstly modifying a two-dimensional nano material g-C3N4 on ITO conductive glass by adopting an electrodeposition method; growing nickel-cobalt hydroxide in situ by adopting a hydrothermal method to prepare a g-C3N4-loaded and boron-doped nickel-cobalt oxide Bi@NixCo<1-x>O3 / g-C3N4-modified working electrode; and finally loading a bisphenol A antibody by adopting good biocompatibility and large specific surface area of the material, thereby completing preparation of the bisphenol A photochemical sensor. When the detection is implemented, L-ascorbic acid-2-trisodium phosphate APP can be catalyzed by the boron-doped nickel-cobalt oxide Bi@NixCo<1-x>O3 to generate the L-ascorbic acid AA in situ, so that an electron donor is provided for photoelectric detection, the photocurrent strength is correspondingly reduced by utilizing the influence on the electronic transmission capability caused by the specificity quantitative combination of the antibody and antigen, and construction of a photoelectric sensor for detecting the bisphenol A by using an unmarked photoelectrochemical technique is finally achieved.

Description

technical field

[0001] The invention relates to the technical field of preparation of new nano functional materials and detection of biochemical sensors, in particular to a photoelectrochemical sensor that can be used for bisphenol A detection and its preparation and application, specifically to a carbon nitride-binary metal boron oxidation Bisphenol A photoelectrochemical sensor of compound material and its preparation and application. Background technique

[0002] Environmental Estrogens (Environmental Estrogens), also known as environmental hormones, are a class of environmental endocrine disrupting substances that have estrogenic effects or antagonistic androgen effects in the environment. These substances widely exist in rivers, soil, air and agricultural products, and can enter human or animal bodies through the food chain or direct contact, interfere with the endocrine system of the body, destroy the normal hormone levels in the plasma, and thus affect the body's repr...