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通过水热法制得磷修饰氧化钛,它在亚甲基蓝和对氯苯酚的降解以及消除大肠杆菌的实验中都表现出高于纯氧化钛的优异活性,甚至优于商品化催化剂P25.在捕获剂中降解亚甲基蓝的实验证实羟基自由基是最主要的活性氧物种,并且磷修饰氧化钛在光照下拥有较强的产生羟基自由基的能力.同时,磷修饰氧化钛具有非常高的热稳定性,直到950oC才会发生从锐钛矿到金红石的相变,这是因为粒子表面的磷酸根阻止了金红石在界面的成核因而抑制了相变发生.磷修饰氧化钛的这种优异性质使得它即使在900oC焙烧后也能有效地降解水中污染物.
Phosphorus-modified titanium oxide was obtained by hydrothermal method, which showed higher activity than pure titanium oxide in the degradation of methylene blue and p-chlorophenol and the elimination of E. coli, even better than the commercial catalyst P25. Degradation of methylene blue experiment confirmed that hydroxyl radical is the most important reactive oxygen species, and phosphorus-modified titanium oxide in the light has a strong ability to generate hydroxyl radicals.Meanwhile, phosphorus-modified titanium oxide has a very high thermal stability, until The phase transition from anatase to rutile occurs at 950oC because the phosphate on the surface of the particles prevents the nucleation of the rutile at the interface and thus inhibits the phase change.The excellent properties of phosphorus-modified titanium oxide make it even in 900oC roasting can effectively degrade the water pollutants.