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采用原子转移自由基聚合法,在碳纤维上接枝亚氨基二乙酸修饰的丙烯酸缩水甘油酯聚合物。采用电化学法分别制备了镍、锌和铬的二元和三元复合金属氢氧化物前驱体,经煅烧生成复合金属氧化物。采用傅里叶变换红外光谱,X射线衍射,扫描电子显微镜和电化学技术对材料的结构和形貌进行了表征。结果表明,此类镍、锌和铬复合金属氢氧化物具有高度晶层状水滑石结构。分别比较了层状复合金属氢氧化物和煅烧后的复合金属氧化物对水溶液中硫离子(S2-)的光电催化氧化,发现煅烧后的镍铬复合金属氧化物对水溶液中的S2-具有较好的光电催化效果。
Adopting the method of atom transfer radical polymerization to graft iminodiacetic acid-modified glycidyl acrylate polymer onto carbon fiber. Electrochemical methods were prepared nickel, zinc and chromium binary and ternary complex metal hydroxide precursors, calcined to produce composite metal oxides. The structure and morphology of the material were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy and electrochemical techniques. The results show that such nickel, zinc and chromium composite metal hydroxides have a highly crystalline layered hydrotalcite structure. The photoelectrocatalytic oxidation of sulfide ion (S2-) in aqueous solution was compared between the layered composite metal hydroxide and the calcined composite metal oxide, respectively. It was found that the calcined nickel-chromium composite metal oxide has a greater effect on S2- in aqueous solution Good photoelectrocatalytic effect.