果胶负载纳米零价铁与纳米零价铁去除水中硝酸盐效果比较

Comparison of Effect of Removing Nitrate in Water Between Pectin Nanometer Zero-valent Iron and Nanometer Zero Valent Iron

对果胶负载纳米零价铁(nZVI/Pectin)与纳米零价铁(nZVI)去除水中硝酸盐效果进行了比较。果胶负载纳米零价铁的分析结果显示,与纳米零价铁相比,果胶负载纳米零价铁具有一定抗氧化性,呈现了很好的分散状态。果胶负载纳米零价铁相比纳米零价铁对硝酸盐的去除率较高。两者经烘烤处理,仍然是果胶负载纳米零价铁的活性要高于纳米零价铁。

The effect of removing nitrate in water by Pectin supported nano zero valent iron(hereafter referred to as’ nZVI/Pectin’) is compared with the one of pure nano zero valent iron(hereafter referred to as’ nZVI). The characterization analysis results of the nZVI/Pectin show that the nZVI/Pectin has a certain degree of oxidation resistance and presents a good dispersion state. NZVI/Pectin has a higher removal rate of nitrate than nano-iron. The activity of nZVI/Pectin is still higher than that of nZVI after being baked.