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Template-Directed Fabrication of Anatase TiO2 Hollow Nanoparticles and Their Application in Photocatalytic Degradation of Methyl Orange
  • ISSN号:1001-604X
  • 期刊名称:《中国化学:英文版》
  • 时间:0
  • 分类:O531.5[理学—等离子体物理;理学—物理] X703[环境科学与工程—环境工程]
  • 作者机构:CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
  • 相关基金:The financial support from the National Natural Science Foundation of China (Nos. 21525420 and 21374107) and China Postdoctoral Science Foundation (BH2060000011) is gratefully acknowledged.
中文摘要:

导致聚合自己组装(比萨)被用来经由可逆增加破碎链转移(木排)制作聚合 nanoparticles poly 使用 diblock 共聚物的本甲基 methacrylate ( BzMA )(甘油 monomethacrylate )的分散聚合 -block-poly(2-dimethylaminoethyl methacrylate )(PGMMA- PDMAEMA-CTA )作为宏木排代理人。有大约 210mg/g (21% 的稳固的内容) 的最后的集中的聚合 nanoparticles 的分散经由这个有效方法(比萨) 被获得。由 corona-shell-core 组成的结果的聚合 nanoparticles 有壳被用作牺牲的模板制作 TiO 2 的弱聚合电解质 PDMAEMA 的三层凹陷 nanoparticles。否定地控告的钛先锋经由静电的相互作用,和 hydrolyzed 被吸收进 PDMAEMA 壳形成 polymer/TiO 2 混血儿 nanoparticles。锐钛矿 TiO 2 空 nanoparticles 在在 550 由锻烧移开聚合模板以后被形成

英文摘要:

Polymerization-induced self-assembly (PISA) was used to fabricate polymeric nanoparticles via reversible ad- dition-fragmentation chain transfer (RAFT) dispersion polymerization of benzyl methacrylate (BzMA) using di- block copolymer poly(glycerol monomethacrytate)-block-poly(2-dimethylaminoetbyl methacrylate) (PGMMA- PDMAEMA-CTA) as the macro RAFT agent. The dispersion of polymeric nanoparticles with a final concentration of about 210 mg/g (solid content of 21%) was obtained via this efficient method (PISA). The resultant polymeric nanoparticles consisting of corona-shell-core three layers with weak polyelectrolyte PDMAEMA as the shell were used as sacrificial template to fabricate TiO2 hollow nanoparticles. The negatively charged titanium precursor was absorbed into the PDMAEMA shell via the electrostatic interaction, and hydrolyzed to form polymer/TiO2 hybrid nanoparticles. Anatase TiO2 hollow nanoparticles were formed after removing the polymeric templates by calcina- tion at 550 ℃. The experiments of photocatalytic degradation of methyl orange showed that the resultant anatase TiO2 hollow nanoparticles had high photocatalytic activity and good reusability.

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期刊信息
  • 《中国化学:英文版》
  • 主管单位:
  • 主办单位:中国化学会
  • 主编:
  • 地址:上海市枫林路354号中科院上海有机化学研究所
  • 邮编:200032
  • 邮箱:
  • 电话:021-54925243
  • 国际标准刊号:ISSN:1001-604X
  • 国内统一刊号:ISSN:31-1547/O6
  • 邮发代号:4-646
  • 获奖情况:
  • 中国期刊方阵“双高”期刊
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰文摘与引文数据库,美国科学引文索引(扩展库),日本日本科学技术振兴机构数据库,英国英国皇家化学学会文摘
  • 被引量:175