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

A binary metal and boron oxide technology, applied in the direction of material electrochemical variables, scientific instruments, analytical materials, etc., can solve the problem of reducing charge carrier recombination, and achieve the effect of improving detection sensitivity and good conductivity

Active Publication Date: 2017-11-14
山东利源康赛环境咨询有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the heterojunction is also sufficiently induced to sterically effectively reduce the recombination of charge carriers during the coupled hybridization process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment provides a bisphenol A photoelectrochemical sensor based on carbon nitride-binary metal boron oxide composite material and its preparation and application. The preparation method includes the following steps:

[0049] S11: Use ITO conductive glass as the working electrode, platinum wire electrode as the counter electrode, and g-C 3 N 4 The mixed solution with graphene oxide is the electrolyte. In the two-electrode system, cyclic voltammetry is adopted, the voltage range is -1.4 ~ 0.4V, the sweep rate is 60mV / s, and the electrodeposition is 20 cycles, and the deposited electrode is used Wash with deionized water to obtain g-C 3 N 4 The modified working electrode; where, g-C 3 N 4The configuration method of the mixed solution with graphene oxide is: add 5mg of g-C 3 N 4 Mix with 0.1mg of graphene oxide, add 10mL of deionized water, then stir for 10min, and then conduct ultrasonic treatment in a water bath for 1 hour to obtain g-C 3 N 4 and graphene...

Embodiment 2

[0062] This embodiment provides a bisphenol A photoelectrochemical sensor and its preparation and application. The preparation method includes the following steps:

[0063] S11: Use ITO conductive glass as the working electrode, platinum wire electrode as the counter electrode, and g-C 3 N 4 The mixed solution with graphene oxide is the electrolyte. In the two-electrode system, cyclic voltammetry is adopted, the voltage range is -1.4 ~ 0.4V, the scan rate is 80mV / s, and the electrodeposition is 15 laps. The deposited electrode is used Wash with deionized water to obtain g-C 3 N 4 The modified working electrode; where, g-C 3 N 4 The configuration method of the mixed solution with graphene oxide is: add 5mg of g-C 3 N 4 Mix with 0.3mg of graphene oxide, add 10mL of deionized water, then stir for 10min, and then conduct ultrasonic treatment in a water bath for 1 hour to obtain g-C 3 N 4 and graphene oxide mixed solution.

[0064] S12: the g-C obtained in step S11 3 N 4...

Embodiment 3

[0075] This embodiment provides a bisphenol A photoelectrochemical sensor and its preparation and application. The preparation method includes the following steps:

[0076] S11: Use ITO conductive glass as the working electrode, platinum wire electrode as the counter electrode, and g-C 3 N 4 The mixed solution with graphene oxide is the electrolyte. In the two-electrode system, the cyclic voltammetry is adopted, the voltage range is -1.4~0.4V, the scan rate is 100mV / s, and the electrodeposition is 11 laps, and the deposited electrode is used Wash with deionized water to obtain g-C 3 N 4 The modified working electrode; where, g-C 3 N 4 The configuration steps of the mixed solution of graphene oxide and graphene oxide are as follows: 5 mg of g-C 3 N 4 Mix with 0.5mg of graphene oxide, add 10mL of deionized water, then stir for 10min, and then conduct ultrasonic treatment in a water bath for 1 hour to obtain g-C 3 N 4 and graphene oxide mixed solution.

[0077] S12: the ...

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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...

Claims

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Application Information

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IPC IPC(8): G01N27/30G01N27/327
Inventor 周大锋姜艳艳高丕成黎荣霞王晓东王亚男杨青青魏晓鹏
Owner 山东利源康赛环境咨询有限责任公司
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