研究目的
Investigating the fabrication of a device for water purification in dark areas using a light-leakage type plastic optical fiber combined with a photocatalyst.
研究成果
The study successfully fabricated a photocatalytic L-POF capable of decomposing organic matter in dark conditions by leaking light to excite a photocatalyst layer. This method offers a practical solution for water purification in unlit areas, with potential for broader applications by adjusting the incident light and photocatalyst coating.
研究不足
The study is limited by the specific conditions under which the photocatalytic L-POF was tested, such as the use of methylene blue as the only contaminant and the specific light intensity used. Further research is needed to explore the device's effectiveness under varied conditions and with different contaminants.
1：Experimental Design and Method Selection:
The study involved fabricating a light-leakage type plastic optical fiber (L-POF) by adding a scattering agent to the fiber core and coating it with a titanium dioxide photocatalyst using a two-layer coating method.
2：Sample Selection and Data Sources:
Methyl methacrylate was polymerized into a tubular geometry to create the fiber cladding, and a solution of MMA and diphenyl disulfide was used as the core material.
3：List of Experimental Equipment and Materials:
Equipment included a polymerization setup, a furnace for heat-drawing, SEM for characterization, and a UV-radiometer for measuring light intensity. Materials included methyl methacrylate, titanium dioxide powder, and methylene blue solution.
4：Experimental Procedures and Operational Workflow:
The L-POF was prepared, coated with a photocatalyst, and then used in a photocatalytic decomposition experiment of methylene blue in dark conditions.
5：Data Analysis Methods:
The photocatalytic activity was evaluated by measuring the absorption of the methylene blue solution at 664 nm over time.
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