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In this study, adsorption of Acid green 20 (AG20) by modified sepiolite, hexadecyltrimethylammonium-modified sepiolite (HDTMA-Sep), was optimized using response surface methodology based on a central composite design. Characteristics of natural sepiolite and modified sepiolite can be analyzed by FTIR and XRD techniques. In order to achieve a better comprehension of applicability of adsorbent for removing...
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