| Summary: | 碩士 === 崑山科技大學 === 環境工程研究所 === 96 === For the PP fiber, the surface activation was modified with the Ar, N2, and O2 plasmas at a condition of 1000 W of power, 200 mtorr of air pressure, and 10 sec of reaction time. In one of the grafting experiments (the first approach), the acrylic acid monomer was directly grafted onto the surface of PP fiber after the plasma activation . In the other grafting experiment (the second approach), the activated PP fiber was grafted with acrylic acid (AAc), followed by the Thiourea monomer grafting procedure. Both products were used for heavy metal removal experiments, and the surface analysis of these PP fabrics analyzed with Fourier Transform Infrared spectroscopy (FTIR) demonstrated the deviation of the function grafted materials. Results of copper adsorption experiments showed that the removal efficiencies were 3.39~1.76(mole/g) when the acrylic acid the first approach experiments. The Cu absoration experiments 4.33(mole/g) when Immersed into NaOH. the Cu absoration dincreased to 0.91(mole/g) by immersed into HNO3. On the other hand, the Cu removal efficiency increased to 8.89~2.96(mole/g) when the grafting procedure fellowed the AAc and Thiourea monomer grafting sequence in the second approach experiment. The Cu absoration experiments 6.66(mole/g) when immersed into NaOH.The Cu absoration dincreased to 3.32(mole/g) when immersed into HNO3.The graft with AAc PP fiber of stability for Cu adsorption on the temperature.The results of FTIR and SEM analyses showed the structure changes of the PP fiber and confirmed the monomer grafting. It was concluded that the PP fiber surface could be grafted with different monomers after plasma activation and the modified products could be potential adsorption materials for heavy metal removal in wastewater treatments.
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