Hydrolyzed Al(Ⅲ) clusters:Speciation stability of nano-Al_(13)

查看全文 作　　者：Shuifeng [1]Wang;Chihpin [2]Huang;Christopher W K. [1,3]Chow

机构地区：[1]Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. E-mail: wgds@rcees.ac.cn;[2]Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan, China;[3]Australian Water Quality Centre, SA Water Corporation, 250 Victoria Square, Adelaide, SA 5000, South Australia

出　　处：《Journal of Environmental Sciences》索引2011年第23卷第5期,共6页

基　　金：supported by the National Natural Science Foundation of China (No. 51025830, 50921064);the National Hi-Tech Research and Development Program(863) of China (No. 2008AA06A414) 摘　　要：Pure nano-Al13 and aggregates at various concentrations were prepared to examine the particle size effect of coagulation with inorganic polymer flocculant.The property and stability of various species formed were characterized using Infrared,27Al-NMR,photo correlation spectroscopy(PCS),and Ferron assay.Results showed that concentration and temperature exhibited different roles on the stability of Al13.The quantity of Alb species analyzed by ferron assay in the initial aging period corresponded well with that of Al13,which has been confirmed in a dimension range of 1-2 nm by PCS.Al13 solutions at high concentrations(0.5-2.11 mol/L) were observed to undergo further aggregation with aging.The aggregates with a wide particle size distribution would contribute to the disappeared/decreased Al13 basis on the 27Al-NMR spectrum,whereas a part of Al13 would still remain as Alb.At low concentrations,Al13 solution was quite stable at normal temperature,but lost its stability quickly when heating to 90°C. 关键词：形态稳定纳米尺寸 AL13形态无机高分子絮凝剂 Ferron 集群 AI 水解

相关文献

参考文献（19）
引证文献（3）
耦合文献（300）

参考文献(19)

引证文献(3)

耦合文献(300)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Hydrolyzed Al(Ⅲ) clusters:Speciation stability of nano-Al_(13)

参考文献(19)

引证文献(3)

耦合文献(300)

用户提示