%0 Journal Article
%T Preparation and characterization of mixed hydroxy-Fe-Al pillared montmorillonite with large basal spacing
%A ZENG Xiu-qiong
%A LIU Wei-ping
%A <br>ZENG Xiu-qiong
%A LIU Wei-ping
%J 环境科学学报(英文版)
%D 2004
%I 
%X Mixed hydroxy-Al-Fe pillared montmorillonites with large basal spacing were successfully prepared through cation-exchanging of Na - montmorillonite with mixed hydroxy-Al and hydroxy-Fe pillaring solutions made from hydrolysis of corresponding metal salts, followed by calcination to convert hydroxy-Al and hydroxy-Fe into intercalated polycations. According to XRD analysis, the basal spacing d(001) of pillared products dramatically enlarged from 12.7 *! in the Na-montmorillonite to 81 *! in the hydroxy-Fe -montmorillonite and 77.5 *! in mixed hydroxy-Al-Fe-montmorillonite. The N_2 BET surface areas of the pillared montmorillonites also greatly increased to more than 200 m 2/g as compared to about 27 m 2/g for the Na-montmorillonite. IR analysis of hydroxy-Fe, and mixed hydroxy-Al-Fe pillared montmorillonites revealed a new absorption vibration at 1384 cm -1 wavelength. XRF elemental analysis data also showed a high content of Fe_2O_3 in the hydroxy-Fe pillared montmorillonite.
%K hydroxy-Al
%K hydroxy-Fe
%K montmorillonite
%K preparation
%K characterization<br>氢氧化铁
%K 氢氧化铝
%K 胶岭石
%K 制备方法
%K 水解
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=F3193E5E1D4BA6C1327EE3E3379423B1&yid=D0E58B75BFD8E51C&vid=7801E6FC5AE9020C&iid=CA4FD0336C81A37A&sid=7555FB9CC973F695&eid=EFD65B51496FB200&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=18