| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1695578 | Applied Clay Science | 2011 | 7 Pages |
Methods for preparation of nanoplates of layered double hydroxides (LDHs) have been intensively investigated for the purpose of making nanocomposites. The present study provides a new simple method of nanoplate preparation for Zn-Al LDHs. Zn-Al LDHs containing lactate or combinations of lactate and simple inorganic anions were synthesized by a coprecipitation method, and water-washed and undried LDHs were dispersed in water. Among them, suspensions of Zn-Al LDHs containing both lactate and bicarbonate were unique in that they rapidly became translucent colloidal dispersions when the molar ratio of added bicarbonate to added Al was ≤ 0.5. The resulting LDH nanoplates in the dispersions were delaminated single layers or nanoplates with a thickness of several layers, depending on the amount of bicarbonate.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A new simple method of nanoplate preparation for Zn-Al LDHs was found. ► Delamination into single layers did not occur homogeneously. ► LDH nanoplates grew laterally during suspension in water.
