研究目的
设计一种阴离子交换膜电极组装的光电化学电池，用于同步降解有机物并发电。
研究成果
该研究表明，在光电化学电池中使用阴离子交换膜同时实现废水处理和发电具有可行性。随着电解质浓度、乙醇浓度和光照强度的增加，电池性能得到提升，但最大光利用率会随光照强度增强而降低。
研究不足
废水处理能力和电力输出仍然相对较小。集成多个光电化学电池（PECs）有望成为解决这一问题并满足实际应用需求的可能途径。
该实验方案涉及构建由光阳极、阴极和阴离子交换膜组成的膜电极组件（MEA）。光阳极通过在碳纸上制备TiO2薄膜并用CdS-ZnS量子点敏化而成。阴极通过在涂覆碳黑的碳纸上沉积铂黑制备。MEA通过将阴极与光阳极夹持中间放置阴离子交换膜组装而成。在包括不同电解质浓度、乙醇浓度和光照强度等多种条件下评估了电池性能。
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34972A data acquisition unit
34972A
Agilent
Used to record the open circuit voltage, short circuit current density, and polarization curves.
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D8 ADVANCE X-ray diffraction
D8 ADVANCE
Bruker
Used to characterize the crystalline phase of the prepared photoanode.
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S4800 field emission scanning electron microscope
S4800
Hitachi
Used to characterize the morphology of the prepared photoanode.
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7500ce inductively coupled plasma mass spectrometry
7500ce
Agilent
Used to measure the amount of cadmium and zinc species in the prepared photoanode.
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GC-2010 Plus gas chromatograph
GC-2010 Plus
Shimadzu
Used to test the variation of the ethanol concentration.
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Aeroxide P25 TiO2 nanoparticles
P25
Acros Organics
Used for the preparation of the TiO2 colloid.
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Polyethylene grafted polystyrene quaternary ammonium anion exchange membrane
HoAM G1204-05
Lvhe Technology Co., Ltd
Used as the anion exchange membrane in the photoelectrochemical cell.
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Toray 090 carbon paper
090
Hesen Electric Co., Ltd
Used as the substrate for the photoanode and cathode.
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Pt black
Hesen Electric Co., Ltd
Used as the electrocatalyst for the cathode.
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Nafion? perfluorinated resin
Hesen Electric Co., Ltd
Used in the preparation of the cathode.
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Nafion? 211 proton exchange membrane
211
Hesen Electric Co., Ltd
Used for comparison in the study.
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LSP04-1A syringe pump
LSP04-1A
Longer-Pump
Used to continuously supply the mixture solution into the cell.
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CT-3008 electronic load
CT-3008
Neware Technology Ltd.
Used to record the open circuit voltage, short circuit current density, and polarization curves.
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CEL-HXF300 300W Xe lamp
CEL-HXF300
Aulight
Used to simulate the solar illumination to the cell.
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FZ-Z visible radiometer
FZ-Z
Used to measure the light intensity on the photoanode.
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