A comparative study about adsorption of natural palygorskite for methylene blue
文献类型：期刊论文
| 作者 | Zhang Y (张媛)1,2; Wang WB (王文波)1 ; Zhang JP (张俊平)1; Liu P (刘鹏)3; Wang AQ(王爱勤)1; Wang AQ(王爱勤)
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| 刊名 | Chemical Engineering Journal
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| 出版日期 | 2015 |
| 卷号 | 262页码:390-398 |
| 关键词 | Palygorskite Methylene Blue Adsorption Capability Adsorption Mechanism |
| ISSN号 | 1385-8947 |
| 通讯作者 | 王爱勤 |
| 英文摘要 | Various methods including acid treatment, heat treatment and surface modification have been used to improve the adsorption properties of natural palygorskite. However, the comparative study about the effect of source of palygorskite on the adsorption properties remains a gap to be filled. Here we first studied the structure and chemical composition of three palygorskite samples from Jiangsu, Anhui and Gansu Provinces of China using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), and X-ray Fluorescence Spectrometry (XRF). Subsequently, the adsorption properties of the palygorskites for methylene blue (MB) were evaluated and compared. The palygorskite from Jiangsu (JSHS) is Mg-poor and has an analogous dioctahedral structure. The palygorskite from Anhui (AHGS) is Mg-rich, and has an intermediate structure of dioctahedron and trioctahedron. The palygorskite from Gansu (GSHN) also has an intermediate structure of dioctahedron and trioctahedron, but is associated with muscovite, clinochlore, dolomite and feldspar. The maximum adsorption capacity of the palygorskites from JSHS, GSHN, AHGS for MB at 303 K is 158.03, 98.34, 77.92 mg/g, respectively. It was found that a lower Mg content and the dioctahedral structure of palygorskite are favorable to its adsorption for MB. More negative value of Gibbs free energy (△G0) for JSHS further illustrates that JSHS has higher efficiency in removing the MB molecules than the others. The adsorption mechanism studies suggest that the zeolitic H2O plays a fundamental role in the interaction between MB and palygorskite. |
| 学科主题 | 环境材料与生态化学 |
| 收录类别 | SCI |
| 资助信息 | ‘‘863’’ Project of the Ministry of Science and Technology, P. R. China (No. 2013AA032003);the Science and Technology Support Project of Jiangsu Provincial Sci. & Tech. Department (No. BE2012113) |
| 语种 | 英语 |
| 源URL | [http://210.77.64.217/handle/362003/18124]  |
| 专题 | 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
| 通讯作者 | Wang AQ(王爱勤) |
| 作者单位 | 1.Center of Xuyi Attapulgite Applied Technology, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China 2.University of the Chinese Academy of Sciences, Beijing 100049, PR China 3.College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China |
| 推荐引用方式 GB/T 7714 | Zhang Y ,Wang WB ,Zhang JP ,et al. A comparative study about adsorption of natural palygorskite for methylene blue[J]. Chemical Engineering Journal,2015,262:390-398. |
| APA | Zhang Y ,Wang WB ,Zhang JP ,Liu P ,Wang AQ,&王爱勤.(2015).A comparative study about adsorption of natural palygorskite for methylene blue.Chemical Engineering Journal,262,390-398. |
| MLA | Zhang Y ,et al."A comparative study about adsorption of natural palygorskite for methylene blue".Chemical Engineering Journal 262(2015):390-398. |
入库方式： OAI收割
来源：兰州化学物理研究所
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