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胶溶-水热法制备超细PAA/TiO2纳米粉体的研究
  • ISSN号：1001-7011
  • 期刊名称：《黑龙江大学自然科学学报》
  • 时间：0
  • 分类：O643[理学—物理化学;理学—化学]
  • 作者机构：[1]黑龙江大学化学化工与材料学院,哈尔滨150080
  • 相关基金：国家自然科学基金资助项目（20431030）;黑龙江省教育厅科学技术研究项目（12511381）
作者： 辛柏福[1], 高跃[1], 王虹[1], 吴杰[1], 李洪峰[1], 张海秋[1]
关键词： 胶溶-水热, TIO2, PAA, 纳米粉体, peptization-hydrothermal , TiO2 , PAA , nano powders
中文摘要：

以四氯化钛为原料、聚丙烯酸（PAA）为修饰剂,采用胶溶-水热处理工艺制备了超细PAA/TiO2纳米粉体。利用XRD、BET、XPS等分析技术对PAA/TiO2进行了结构表征。实验结果表明：由于PAA能有效抑制在水热过程中TiO2粒子的生长和团聚,从而制得同时具有小粒径、大比表面积、高晶化度的锐钛矿相PAA/TiO2纳米粒子,且PAA/TiO2纳米晶表层的氧空位数量、吸附氧数量及表面羟基量均显著增加,这些因素都有利光催化反应并能显著改善催化剂的光催化性能。

英文摘要：

The superfine PAA/TiO2 nano powders have been synthesized by peptization - hydrothermal process using titanium tetrachloride as material and polyacrylic acid （PAA） as modifying agents. The samples were characterized by XRD, BET, and XPS. The results suggested that PAA can effectively control the growth and agglomeration of PAA/TiO2 particles. So, the PAA/TiO2 with small size, high specific surface area, and high erystallinity can been obtained. On the other hand, the amount of adsorbed O2, surface hydroxyl and oxygen vacancies on the surface of the PAA/TiO2 is increased remarkably. These factors can markedly improve the photocatalytic activity of TiO2.

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钙钛矿型有机/无机杂化半导体材料的分子剪裁与组装
期刊论文 177 会议论文 30 著作 1
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期刊信息
  • 《黑龙江大学自然科学学报》
  • 北大核心期刊（2011版）
  • 主管单位:黑龙江省教育厅
  • 主办单位:黑龙江大学
  • 主编：霍丽华
  • 地址：哈尔滨市学府路74号
  • 邮编：150080
  • 邮箱：hdxb@vip.sohu.com
  • 电话：0451-86608818
  • 国际标准刊号：ISSN：1001-7011
  • 国内统一刊号：ISSN：23-1181/N
  • 邮发代号:14-114
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,美国数学评论（网络版）,德国数学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）
  • 被引量:4204