To mitigate the aggregation and enhance the reactivity of nanosized zero-valent iron (nZVI), montmorillonite is employed as a template-supporting matrix to prepare nZVI through two different pathways: heterogeneous nucleation and homogeneous nucleation processes. Dispersed sub-nanosized ZVI clusters with an average size around 0.5 nm (perpendicular to the clay layers) are intercalated in clay interlayers when using montmorillonite as a template in preparation via heterogeneous nucleation process. However, the particle sizes spanned from 0.62 nm (perpendicular to the clay layers) for the ZVI intercalated in montmorillonite interlayers to 150 nm for the ZVI residing on an external surface when using montmorillonite as a dispersion agent in the preparation via homogeneous nucleation. Furthermore, parallel batch experiments have been conducted with nZVIs synthesized by the two different methods in solutions of nitrobenzene and their reactivity is evaluated via response of nZVI to nitrobenzene remediation. As a result, the reactivity of ZVI synthesized by heterogeneous nucleation is greater than that by homogeneous nucleation, which is inversely correlated to the size of ZVI supported by montmorillonite clay. Evaluation of the stability of montmorillonite-supported ZVI showed that ZVI intercalated in the interlayers of montmorillonite is more stable than that located on the external surface, which can be attributed to the protective effect of montmorillonite layers on ZVI from oxidation. These results suggest that the great reactivity and high stability of montmorillonite-intercalated ZVI synthesized through heterogeneous nucleation process warrants its significant potential in developing in situ remediation and treatment technologies for organic contaminants.
机构:
Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Inner Mongolia Univ, Coll Environm & Resources, Hohhot 010021, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Fan MingDe
Yuan Peng
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Yuan Peng
Chen TianHu
论文数: 0引用数: 0
h-index: 0
机构:
Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chen TianHu
He HongPing
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
He HongPing
论文数: 引用数:
h-index:
机构:
Yuan AiHua
Chen KangMin
论文数: 0引用数: 0
h-index: 0
机构:
Jiangsu Univ, Sch Mat Sci Engn, Zhenjian 212003, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chen KangMin
Zhu JianXi
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Zhu JianXi
Liu Dong
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
机构:
Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R ChinaHong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China
Huang, Haitao
Yang, Yan
论文数: 0引用数: 0
h-index: 0
机构:Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China
机构:
Michigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Univ Sci & Technol Beijing, Dep Environm Engn, Beijing 100083, Peoples R ChinaMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Jia, Hanzhong
Gu, Cheng
论文数: 0引用数: 0
h-index: 0
机构:
Michigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USAMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Gu, Cheng
Boyd, Stephen A.
论文数: 0引用数: 0
h-index: 0
机构:
Michigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USAMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Boyd, Stephen A.
Teppen, Brian J.
论文数: 0引用数: 0
h-index: 0
机构:
Michigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USAMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Teppen, Brian J.
Johnston, Cliff T.
论文数: 0引用数: 0
h-index: 0
机构:
Purdue Univ, W Lafayette, IN 47907 USAMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Johnston, Cliff T.
Song, Cunyi
论文数: 0引用数: 0
h-index: 0
机构:
Univ Sci & Technol Beijing, Dep Environm Engn, Beijing 100083, Peoples R ChinaMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Song, Cunyi
Li, Hui
论文数: 0引用数: 0
h-index: 0
机构:
Michigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USAMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
机构:
Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Inner Mongolia Univ, Coll Environm & Resources, Hohhot 010021, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Fan MingDe
Yuan Peng
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Yuan Peng
Chen TianHu
论文数: 0引用数: 0
h-index: 0
机构:
Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chen TianHu
He HongPing
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
He HongPing
论文数: 引用数:
h-index:
机构:
Yuan AiHua
Chen KangMin
论文数: 0引用数: 0
h-index: 0
机构:
Jiangsu Univ, Sch Mat Sci Engn, Zhenjian 212003, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chen KangMin
Zhu JianXi
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Zhu JianXi
Liu Dong
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R ChinaChinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
机构:
Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R ChinaHong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China
Huang, Haitao
Yang, Yan
论文数: 0引用数: 0
h-index: 0
机构:Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China
机构:
Michigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Univ Sci & Technol Beijing, Dep Environm Engn, Beijing 100083, Peoples R ChinaMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Jia, Hanzhong
Gu, Cheng
论文数: 0引用数: 0
h-index: 0
机构:
Michigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USAMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Gu, Cheng
Boyd, Stephen A.
论文数: 0引用数: 0
h-index: 0
机构:
Michigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USAMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Boyd, Stephen A.
Teppen, Brian J.
论文数: 0引用数: 0
h-index: 0
机构:
Michigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USAMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Teppen, Brian J.
Johnston, Cliff T.
论文数: 0引用数: 0
h-index: 0
机构:
Purdue Univ, W Lafayette, IN 47907 USAMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Johnston, Cliff T.
Song, Cunyi
论文数: 0引用数: 0
h-index: 0
机构:
Univ Sci & Technol Beijing, Dep Environm Engn, Beijing 100083, Peoples R ChinaMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA
Song, Cunyi
Li, Hui
论文数: 0引用数: 0
h-index: 0
机构:
Michigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USAMichigan State Univ, Dep Crop & Soil Sci, E Lansing, MI 48824 USA