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制备方法对铁钛复合氧化物磷吸附性能的影响:共沉淀法与机械物理混合法

文献类型：期刊论文

作者仲艳; 王建燕; 陈静; 张高生
刊名环境科学
出版日期2018-01-24
卷号39期号:07页码:3230-3239
关键词铁钛复合氧化物 共沉淀 机械物理混合 磷 吸附
ISSN号0250-3301
DOI10.13227/j.hjkx.201709275
其他题名Effect of Preparation Methods on Phosphate Adsorption by Iron-Titanium Binary Oxide: Coprecipitation and Physical Mixing
产权排序(1)中国科学院烟台海岸带研究所中国科学院海岸带环境过程与生态修复重点实验室山东省海岸带环境工程技术研究中心 ; (2)中国科学院大学 ; (3)广州大学珠江三角洲水质安全与保护协同创新中心暨省部共建重点实验室
英文摘要To investigate the effect of preparation methods on surface characteristics and adsorption properties of the formed metal composite oxides,two kinds of iron-titanium binary oxides were synthesized by a coprecipitation method or a physical mixing method and were denoted as CFe-Ti and MFe-Ti,respectively. The prepared CFe-Ti and MFe-Ti were systematically characterized using SEM, XRD,BET,and FTIR techniques. Their phosphate adsorption behaviors were also studied via batch adsorption experiments. Compared with pure FeOOH and TiO_2,CFe-Ti exhibited a looser nanostructure with more pore and surface hydroxyls. Moreover,the CFe-Ti had a high maximal phosphorus adsorption capacity of 40. 6 mg·g~(-1) ,which is about 1. 5 times and 2. 4 times as high as that of pure FeOOH ( 27. 2 mg·g~(-1) ) and TiO_2 ( 16. 7 mg·g~(-1) ) ,respectively. This suggests that an obvious synergistic effect is present in the CFe-Ti system. However,the morphology and structure of MFe-Ti were not significantly different from those of pure FeOOH and TiO_2 . The maximal adsorption capacity of MFe-Ti was 22. 7 mg·g~(-1) ,which is obviously lower than that of CFe-Ti and even lower than that of pure FeOOH. Evidently,there is no synergistic effect in the MFe-Ti system. In addition,phosphate adsorption mechanisms at the surface of CFe-Ti and MFe-Ti were the same as those of their component oxides,and chemical adsorption occurred at the surface of the oxides through the formation of inner-sphere complexes. Therefore,the surface characteristics and adsorption properties of the metal composite oxides were closely related to their preparation methods. The coprecipitation method was a simpler and more economical way than the physical mixing method to fabricate a highly effective iron-titanium binary oxide for phosphate adsorption
语种中文
CSCD记录号CSCD:6273955
资助机构国家自然科学基金项目#51478457 ; 中国科学院烟台海岸带研究所自主部署项目#YICY755021012
源URL[http://ir.yic.ac.cn/handle/133337/24729]  
专题烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
烟台海岸带研究所_污染过程与控制实验室
作者单位1.中国科学院烟台海岸带研究所中国科学院海岸带环境过程与生态修复重点实验室山东省海岸带环境工程技术研究中心;
2.广州大学珠江三角洲水质安全与保护协同创新中心暨省部共建重点实验室
3.中国科学院大学;
推荐引用方式
GB/T 7714		 仲艳,王建燕,陈静,等. 制备方法对铁钛复合氧化物磷吸附性能的影响:共沉淀法与机械物理混合法[J]. 环境科学,2018,39(07):3230-3239.
APA 仲艳,王建燕,陈静,&张高生.(2018).制备方法对铁钛复合氧化物磷吸附性能的影响:共沉淀法与机械物理混合法.环境科学,39(07),3230-3239.
MLA 仲艳,et al."制备方法对铁钛复合氧化物磷吸附性能的影响:共沉淀法与机械物理混合法".环境科学 39.07(2018):3230-3239.

入库方式： OAI收割

来源：烟台海岸带研究所

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