CAJ | 학술논문

以TiSO_4和尿素为主要原料,EDTA为控制剂,采用微波水热法制备纳米TiO_2光催化剂,并分析了纳米TiO_2晶粒的最佳形成条件.利用XRD、TEM等技术对制备产物进行表征.结果表明,TiSO_4和尿素混合物在微波水热条件下晶化150 min后,产物为锐钛矿型TiO_2,且产物粒径小、大小均匀.在紫外光照射下,以自制的锐钛矿型纳米TiO_2为催化剂,酸性橙为降解目标物,进一步研究了其光催化性能.结果表明,该TiO_2在紫外光照射下表现出稳定的光催化活性.
이TiSO_4화뇨소위주요원료,EDTA위공제제,채용미파수열법제비납미TiO_2광최화제,병분석료납미TiO_2정립적최가형성조건.이용XRD、TEM등기술대제비산물진행표정.결과표명,TiSO_4화뇨소혼합물재미파수열조건하정화150 min후,산물위예태광형TiO_2,차산물립경소、대소균균.재자외광조사하,이자제적예태광형납미TiO_2위최화제,산성등위강해목표물,진일보연구료기광최화성능.결과표명,해TiO_2재자외광조사하표현출은정적광최화활성.
Using titanium sulfate and urea as raw materials, EDTA as control agent, TiO_2 photocatalyst with nanoscale structure was obtained through microwave hydrothermal synthesis. The corresponding formation factors were analyzed. The products were characterized by transmission electron microscopy (TEM) , X-ray diffraction (XRD). The results showed that the main crystalline phase of titanium dioxide was anatase and the particle was of nanoscale size and perfect dispersity after reacting for 150 rain in the microwave-hydrothermal vessels. Moreover, the further investigations indicated that these samples were of high photoeatalytic activity which was proved by the degradation experiments of acid-orange.