工业水处理
工業水處理
공업수처리
Industrial Water Treatment
2015年
10期
66-68
,共3页
TiO2%Ce-Si共掺杂%可见光催化%甲基橙
TiO2%Ce-Si共摻雜%可見光催化%甲基橙
TiO2%Ce-Si공참잡%가견광최화%갑기등
TiO2%Ce-Si co-doped%visible light catalysis%methyl orange
采用水热合成法分别制备了 TiO2、Si-TiO2、Ce-TiO2以及 Ce 和 Si 共掺杂 TiO2(Ce0.010Si0.10TiO2)光催化剂,利用XRD和TEM对制备的样品进行了晶型和形貌的表征,并在可见光照射下用其催化降解甲基橙水溶液,考察了催化剂的可见光催化活性.结果表明,对于Si和Ce共掺杂TiO2,Si的引入可显著提高TiO2颗粒的分散性,提高其比表面积,而Ce的引入可提高其可见光催化活性;Ce0.010Si0.10TiO2具有较好的催化活性,其在可见光条件下对模拟废水中甲基橙的降解率达到了95.3%.
採用水熱閤成法分彆製備瞭 TiO2、Si-TiO2、Ce-TiO2以及 Ce 和 Si 共摻雜 TiO2(Ce0.010Si0.10TiO2)光催化劑,利用XRD和TEM對製備的樣品進行瞭晶型和形貌的錶徵,併在可見光照射下用其催化降解甲基橙水溶液,攷察瞭催化劑的可見光催化活性.結果錶明,對于Si和Ce共摻雜TiO2,Si的引入可顯著提高TiO2顆粒的分散性,提高其比錶麵積,而Ce的引入可提高其可見光催化活性;Ce0.010Si0.10TiO2具有較好的催化活性,其在可見光條件下對模擬廢水中甲基橙的降解率達到瞭95.3%.
채용수열합성법분별제비료 TiO2、Si-TiO2、Ce-TiO2이급 Ce 화 Si 공참잡 TiO2(Ce0.010Si0.10TiO2)광최화제,이용XRD화TEM대제비적양품진행료정형화형모적표정,병재가견광조사하용기최화강해갑기등수용액,고찰료최화제적가견광최화활성.결과표명,대우Si화Ce공참잡TiO2,Si적인입가현저제고TiO2과립적분산성,제고기비표면적,이Ce적인입가제고기가견광최화활성;Ce0.010Si0.10TiO2구유교호적최화활성,기재가견광조건하대모의폐수중갑기등적강해솔체도료95.3%.
Photo-catalysts TiO2,Si-TiO2,Ce-TiO2 and the Ce and Si codoped TiO2 (Ce0.010Si0.10TiO2) have been pre-pared by hydrothermal synthesis method. The crystal formation and appearance of the prepared samples are charac-terized by XRD and TEM. It can be used for the catalytic degradation of methyl orange solution under visible light , and the visible light catalytic activity of the catalysts is investigated. The results show that for the Ce and Si codoped TiO2,the introduction of Si can improve the dispersibility of TiO2 particles and increase their specific surface areas, and the introduction of Ce can improve visible light catalytic activity. Ce0.010Si0.10TiO2 has better catalytic activity,and under visible light the degradation rate on methyl orange in simulated wastewater reaches 95.3%.
