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Experimental method for photoelectrocatalytic degradation of bisphenol A by polypyridine ruthenium complex

A technology of photoelectric catalysis and experimental methods, applied in the direction of chemical instruments and methods, water pollutants, water/sewage multi-stage treatment, etc., can solve the problems of incomplete removal of phenolic pollutants, secondary pollution, slow process, etc.

Inactive Publication Date: 2020-03-27
BENGBU COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, biological methods, physical methods, and chemical methods have been applied to treat wastewater containing BPA and other phenolic pollutants. Chemical methods degrade phenolic pollutants. Advanced oxidation technology is widely used at present; physical methods are only The transfer of phenolic substances from one phase to another does not completely remove phenolic pollutants; the process of biological degradation of phenolic pollutants is relatively slow, and the activity of microorganisms may depend on temperature and may be affected by pollutants. impact, and may cause secondary pollution

Method used

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  • Experimental method for photoelectrocatalytic degradation of bisphenol A by polypyridine ruthenium complex
  • Experimental method for photoelectrocatalytic degradation of bisphenol A by polypyridine ruthenium complex
  • Experimental method for photoelectrocatalytic degradation of bisphenol A by polypyridine ruthenium complex

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Embodiment 1

[0036] An experimental method for the photocatalytic degradation of bisphenol A by a polypyridine ruthenium complex, the experimental method for degrading bisphenol A comprises the following steps:

[0037] S1. A three-electrode system is adopted: the working electrode is an indium tin oxide electrode, the counter electrode is a platinum electrode, the reference electrode is an Ag / AgCl electrode, and the electrolyte is a NaCl solution;

[0038] S2, add 0.5gL -1 TiO 2 / 0.1mMBPA system is irradiated with 365nm ultraviolet light for different times under the condition of oxygen saturation, and the solution obtained is placed in a three-electrode system for scanning and storage;

[0039] S3, add 0.1mM [Ru(bpy) 2 (tatp)] 2+ / 0.1mMBPA system is irradiated with 365nm ultraviolet light for different times under the condition of oxygen saturation, and the solution obtained is placed in a three-electrode system for scanning and storage;

[0040] S4, put BPA in 0.5gL -1 TiO 2 Under ...

Embodiment 2

[0054] According to embodiment 1, with [Ru(bpy) 2 (tatp)] 2+ / TiO 2 As the photoanode, the Ag / AgCl electrode as the cathode, and BPA as the fuel, the fuel cell was assembled under the condition of 8W ultraviolet light irradiation. Figure 7 It can be seen that using [Ru(bpy) 2 (tatp)] 2+ Sensitized TiO 2 The voltage of the battery as the anode in the dark room is -0.040V, and it shifts negatively to -0.468V under the excitation of ultraviolet light, indicating that the light excitation can generate more excited states of Ru(II) complexes, and these excited states can transfer electrons to Inject TiO 2 As a result, the voltage of the battery is shifted negatively. When the resistance is changed from 2000 to 30000Ω, the current and output power of the battery under the excitation of ultraviolet light are as follows: Figure 8 Shown, the fuel cell [Ru(bpy) 2 (tatp)] 2+ Sensitized TiO 2 As photoanode, Ag / AgCl reference electrode as photocathode, when 0.1mMBPA is used as f...

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Abstract

The invention discloses an experimental method for photoelectrocatalytic degradation of bisphenol A by a polypyridine ruthenium complex. The experimental method for degradation of bisphenol A comprises the following steps: adopting a three-electrode system, placing a solution obtained by irradiating a 0.5 g*L<-1> TiO2 / 0.1 mM BPA system and a 0.1 mM [Ru(bpy)2(tatp)]<2+> / 0.1 mM BPA system with 365 nm ultraviolet light for different time under an oxygen saturation condition into a three-electrode system, scanning and storing; placing a solution obtained by irradiating BPA with visible light for different time under the conditions of 0.5 g*L<-1> TiO2 and 0.1 mM [Ru(bpy)2(tatp)]<2+> into the three-electrode system, scanning and storing; placing a test tube and an electrolytic cell correspondingly in through holes in a cleaning cylinder 1, and cleaning. The [Ru(bpy)2 (tatp)]<2+> can mediate and oxidize BPA and can be further applied to photoelectric induced oxidative degradation of the BPA,and the degradation effect of the BPA can be monitored according to the change of a direct oxidation peak or a mediated oxidation peak current of a BPA solution on an ITO electrode before and after degradation along with the illumination time.

Description

technical field [0001] The invention belongs to the technical field of bisphenol A, and relates to an experimental method for photocatalytically degrading bisphenol A, in particular to an experimental method for photocatalytically degrading bisphenol A with a polypyridine ruthenium complex. Background technique [0002] As the main raw material for the synthesis of epoxy resin and polycarbonate, bisphenol A is an environmental endocrine disruptor with potential toxicity of carcinogenicity, teratogenicity and mutagenesis. Therefore, the degradation of BPA is of great significance. [0003] In the prior art, biological methods, physical methods, and chemical methods have been applied to treat wastewater containing BPA and other phenolic pollutants. Chemical methods degrade phenolic pollutants. Advanced oxidation technology is widely used at present; physical methods are only The transfer of phenolic substances from one phase to another does not completely remove phenolic pollu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F101/34
CPCC02F1/32C02F1/4672C02F2101/34
Inventor 李倩赵建军王晴晴张现峰
Owner BENGBU COLLEGE
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