【摘 要】
：
The nitrogen-doped and (metal, nitrogen)-codoped TiO2 photocatalysts (metal = Ag, Ce, Fe, La) were synthesized by sol-gel auto-igniting synthesis (SAS) with the
【机 构】
：
Laboratory of Special Ceramics and Powder Metallurgy
论文部分内容阅读
The nitrogen-doped and (metal, nitrogen)-codoped TiO2 photocatalysts (metal = Ag, Ce, Fe, La) were synthesized by sol-gel auto-igniting synthesis (SAS) with the complex compound sol of TiCl4-NH4NO3-citri acid-metal nitrateNH3.H2O as a precursor. The products were characterized by means of XRD, XPS, and UV-Vis diffuse reflectance spectra,and their photocatalytic activity was investigated under visible light. It was found that all the synthesized powders showed good absorption for visible light, and that the radius and alterable valence states of doping metallic cations played important roles on their photocatalytic activity. These results were discussed in detail.
其他文献
医用材料是生物医学的分支之一,是由生物、医学、化学和材料等学科交叉形成的边缘学科.而医用高分子材料则是生物医用材料中的重要组成部分,主要用于人工器官、外科修复、理
[目的]设计、建设一套满足我国当前水产养殖业工业化、节约化需求的养殖系统。[方法]对现有养殖池塘进行改造,结合工程化施工,建造3条流水槽;利用气提式推水装置营造流水养鱼
In the present study, eight combinations of restriction enzymes and oligonucleotide probes were tested for detecting VNTR polymorphism. More than a hundred loci
To construct and identify further a recombinant of Adeno-associated virus and interferon-gammafor gene therapy, the full-length IFN-γcDNA containing signal pe
针对现有任务分配方法在任务点较多时不易解算,且计算量大的问题,提出了基于模糊C-均值聚类算法的多无人机系统任务分配方法.首先,利用模糊C-均值聚类算法得到的隶属度矩阵对
A numerical analysis of the laser drying process by employing a generalized, Maxwell-Cattaneo equation to treat both heat and mass transfer was presented. Calcu
研究了基于生物特征的密钥提取,利用模糊提取器将不可精确再生和非均匀分布的生物特征数据生成为可应用于经典密码体系的密钥,密钥的产生和用户的认证紧密结合,使认证和密钥
报道了中国兰科Orchidaceae植物一新记录种--洛氏蝴蝶兰Phalaenopsis lobbii (Rchb. f.) H. R. Sweet..它与P. gibbosa、P. parishii非常相似, 但本种的花白色, 不具"Z"字形
目的 探讨乳化异氟醚预处理对大鼠局灶性脑缺血再灌注时海马腺苷A1(AA1)受体表达的影响.方法 健康雄性SD大鼠88只,体重280～320 g,采用随机数字表法,将其随机分为7组:假手术组(
对镍基单晶合金材料DD3的[001]取向试样进行950℃、278 MPa/250 MPa两种载荷水平的3个时间阶段的单轴拉伸蠕变试验。采用扫描电镜(SEM)观察各试验阶段试样的γ/γ’两相微观