Research Article
The Improvement of Natural Thai Bentonite Modified with Cationic Surfactants on Hexavalent Chromium Adsorption from an Aqueous Solution
Figure 7
TEM images of (a) NTB, (b) 1CPC, and (c) 1HDTMA (). (d)–(f) FESEM microphotographs of NTB, 1CPC, and 1HDTMA, respectively (50,000x magnification).
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