缺陷型Cu-Bi共掺杂TiO<subscript>2</subscript>光催化剂的 制备及其降解四环素的研究. (Chinese)

The precursor solution was prepared by sol・gel method using tetrabutyl titanate, copper nitrate and bismuth rdtrate as raw materials. The defective Cu-Bi co-doped TiO 2 composite photocatalyst was successfully prepared through drying, mechanical activation (MA) and calcination, the defective Cu-Bi co・ doped TiO2 composite photocatalyst was characterized by XRD, SEM, TEM, XPS, BET, and PL, and tetracycline hydrochloride (TC) was researched to perform photocatalytic degradation under visible light irradiation. The results showed that 96. 5% of TC could be degraded within 120 min under the condition of 1% cop per-bismuth doping with dosage of 0.25 g/L alter 20 min MA treatment. [ABSTRACT FROM AUTHOR]

以钛酸四丁酯、硝酸铜、硝酸钳为原料, 采用溶胶-凝胶法制备前驱体溶液,经干燥、机械活化(MA)、锻烧处 理, 制备缺陷型Cu-Bi共掺杂TiO2复合光催化剂, 利用XRD、SEM、TEM、XPS、BET、PL等进行表征,在可见光辐照 下, 对光催化剂降解的盐酸四环素(TC)性能进行了研究。结果表明, 在MA处理20 min,铜、钳'掺杂量均为1%, 用 量0.25 g/L的条件下, 120 min内TC降解率达96.5%. [ABSTRACT FROM AUTHOR]

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