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A zinc phthalocyanine based/tio 2 Nanorod Composite Photoelectrochemical Sensors and Their Applications

A composite material, photoelectrochemical technology, applied in the field of photoelectrochemical sensors, can solve problems such as high cost and inconvenient detection, and achieve the effects of low cost, reduced composite, and simple equipment

Active Publication Date: 2020-01-03
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of sensitized TiO based on zinc phthalocyanine 2 The photoelectric sensor constructed of nanorods is used for the rapid and sensitive detection of the concentration of bisphenol A, so as to overcome the problems of inconvenient detection and high cost of the existing methods for detecting bisphenol A

Method used

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  • A zinc phthalocyanine based/tio <sub>2</sub> Nanorod Composite Photoelectrochemical Sensors and Their Applications
  • A zinc phthalocyanine based/tio <sub>2</sub> Nanorod Composite Photoelectrochemical Sensors and Their Applications
  • A zinc phthalocyanine based/tio <sub>2</sub> Nanorod Composite Photoelectrochemical Sensors and Their Applications

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Based on zinc phthalocyanine / TiO 2Construction methods of photoelectrochemical sensors based on nanorod composites:

[0036] (1) TiO 2 Construction of nanorods: Using tetrabutyl titanate as titanium source and saturated sodium chloride solution as dispersant, TiO was directly synthesized on FTO conductive glass by one-step hydrothermal method 2 Nanorods and FTO conductive glass (15×50 mm) were ultrasonically cleaned with acetone, ethanol, and ultrapure water for 15 minutes respectively, and dried naturally for use. Mix 12.5mL of deionized water and 2.5mL of saturated sodium chloride solution, add 15mL of concentrated hydrochloric acid, mix and stir for 5min, then add 0.4mL tetrabutyl titanate and continue stirring for 5min, and transfer the obtained homogeneous solution to a 50mL autoclave , after cleaning and drying, the conductive surface of the FTO conductive glass leans downward and leans against the wall of the reactor, and puts it into an oven at 180°C for 6 hou...

Embodiment 2

[0045] Actual sample testing:

[0046] Choose PC plastic bottles, PC baby bottles, and PVC food packaging bags as raw materials, cut them into pieces, wash and dry them with ultrapure water, accurately weigh 2.0g into a conical flask, add 40mL of dichloromethane until the plastic is completely dissolved, and then Add 100mL of methanol to it to precipitate the high-molecular substances, centrifuge to take the supernatant, and evaporate it to dryness, then dilute to 5mL with ethanol, filter through a 0.45μm filter membrane, and add 0.1mol / L Na 2 SO 4 solution to 20 mL. Using the current-time curve method in Example 1, under the irradiation of visible light, a bias voltage of 0.0 V was applied to measure the photocurrent density of the above solution. Then add a concentration of 1 × 10 -6 mol / L bisphenol A standard solution for photocurrent density measurement, and calculate the concentration and recovery rate of the actual sample according to the working curve.

[0047] Mix ...

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Abstract

The invention belongs to the technical field of photoelectrochemical analysis, and relates to a zinc phthalocyanine / TiO2 nanorod composite material-based photoelectrochemical sensor. The photoelectricsensor constructed based on zinc phthalocyanine sensitized TiO2 nanorods can be used in the rapid and sensitive detection of the concentration of bisphenol A in order to solve the problems of inconvenient detection and high cost of existing methods for detecting bisphenol A. The zinc phthalocyanine / TiO2 nanorod composite material-based photoelectrochemical sensor is constructed by the following steps: (1) directly synthesizing TiO2 nanorods on FTO conductive glass through a conventional one-step hydrothermal technology with tetrabutyl titanate as a titanium source and a saturated sodium chloride solution as a dispersant; and (2) taking 1 mL of an N,N-dimethylformamide solution of zinc phthalocyanine, dispensing the solution on the surface of the obtained TiO2 nanorod / FTO conductive glass,and drying the glass in a vacuum oven at 60 DEG C to completely deposit the zinc phthalocyanine dye in order to obtain the zinc-phthalocyanine / TiO2 nanorod composite material-based photoelectrochemical sensor.

Description

technical field [0001] The invention belongs to the technical field of photoelectrochemical analysis, a zinc phthalocyanine / TiO 2 Photoelectrochemical sensors of nanorod composites. Background technique [0002] Bisphenol A (BPA) is a typical environmental endocrine disruptor, and as an important organic chemical raw material for the production of polycarbonate and epoxy resin, it is widely used in plastic products, food packaging, baby bottles and hundreds of other daily Preparation of supplies. However, due to the release of BPA during the production process and the migration of BPA in plastic food packaging, it is ubiquitous in water, food and soil. Relevant toxicological studies have shown that bisphenol A can induce metabolic disorders, obesity, ADHD and other diseases, and even induce prostate tumors, breast cancer and other malignant tumors, with significant developmental and reproductive toxicity. Therefore, it is necessary to establish an efficient, simple and re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/416G01N27/30
CPCG01N27/30G01N27/416
Inventor 范珍珍范丽芳张彩云董川双少敏
Owner SHANXI UNIV
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