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Dye-sensitized solar cell for recovering energy from sewage

A technology for solar cells and energy recovery, applied in the field of dye-sensitized solar cells, can solve problems such as difficulty in using sewage and uncommon electron pairs, and achieve the advantages of long service life, improved electron yield, and accelerated degradation of organic pollutants. Effect

Active Publication Date: 2014-04-30
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The redox couple in the electrolyte (I - / I 3- ) as an electronic bridge to stabilize the current plays an important role in dye-sensitized solar cells, but due to the actual sewage I - / I 3- Electron pairs are uncommon, making it difficult to use sewage as an electrolyte in sensitized batteries

Method used

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Examples

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Embodiment 1

[0031] Example 1 Preparation of anode 3

[0032] 1) Add 6g of polyvinyl alcohol (PVA) to 14mL of boiled distilled water and stir vigorously to obtain a highly viscous liquid, which is diluted in a mixed solvent consisting of 18mL of distilled water and 25mL of ethanol at 70°C.

[0033] 2) Add 1.62g of the prepared Ag / AgCl-loaded chiral TiO to the PVA / water / ethanol solution obtained in step 1) 2 nanotubes, resulting in a suspension and cooling at room temperature.

[0034]3) The suspension obtained in step 2) was uniformly coated on the FTO glass using the doctor blade coating technique (area 3 cm × 3 cm), and the resulting film was placed in a clean box for 15 min to reduce surface irregularities and coating. The residual mechanical stress of the layer. The thickness of the anodic film was 11 μm, which was controlled by the number of times the knife coating technique was repeated.

[0035] 4) The diaphragm obtained in step 3) was heated and dried in a vacuum drying oven for...

Embodiment 2

[0037] Example 2 P / TiO 2 - Preparation of Pt cathode 4

[0038] Method is the same as Example 1, and difference is that P / TiO is added in PVA / water / ethanol solution 2 After -Pt, repeat steps 2) to 4) of the above-mentioned embodiment 1.

Embodiment 3

[0039] The pretreatment of embodiment 3 FTO conductive glass substrates

[0040] The FTO conductive glass was ultrasonically cleaned in 2-propanol for 30 min, rinsed thoroughly with distilled water, and finally dried in nitrogen.

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Abstract

The invention discloses a dye-sensitized solar cell for recovering energy from sewage. According to the dye-sensitized solar cell for recovering the energy from the sewage, a chirality TiO2 nanotube with the Ag / AgCl load serves as the anode, a P / TiO2-Pt electrode serves as the cathode, and the dye-sensitized solar cell is formed in the mode that the chirality TiO2 nanotube with the Ag / AgCl load, the P / TiO2-Pt electrode and an externally-connected circuit are connected. According to the dye-sensitized solar cell for recovering the energy from the sewage, due to the fact that the chirality TiO2 nanotube serves as the anode, the surface plasma resonance effect of the chirality TiO2 nanotube is improved, and the oxidation effect of the anode on organic pollutants is improved; the organic matter on the anode loses electrons to carry out an oxidation reaction so as to generate matter such as H2O and CO2, the electrons are obtained by the cathode, a reduction reaction is carried out, and heavy metal ions such as copper ions are reduced to generate H2. According to the dye-sensitized solar cell for recovering the energy from the sewage, the degradation effect of a fuel cell on the organic matter is improved, the energy is recovered from the sewage, safety and high efficiency are achieved, and harmful substances are not generated.

Description

technical field [0001] The invention belongs to the technical field of dye-sensitized solar cells, in particular to a dye-sensitized solar cell for recovering energy from sewage. Background technique [0002] Water is the basic element for the survival of human beings and all living things, and it is also one of the basic conditions for maintaining the sustainable development of human society. Since the 1970s, with the rapid increase of the world's population and the rapid development of the global economy, water consumption has increased sharply, and water pollution has become increasingly serious. The "World Water Resources Comprehensive Assessment Report" issued by the United Nations in 1997 pointed out that water problems will seriously restrict the global economic and social development in the 21st century, and may lead to conflicts among countries. China is a country with a shortage of water resources. Coupled with the uneven distribution of water resources in time an...

Claims

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Application Information

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IPC IPC(8): H01G9/20C02F1/461
CPCY02A20/212Y02E10/542Y02W10/37
Inventor 李轶邰晓晖王大伟胡磊张文龙
Owner HOHAI UNIV
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