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A latex sponge is modified by chitosan, tannic acid, and silane coupling agent KH550 to prepare an oleophobic sponge adsorbent, which can adsorb different kinds of charged dyes and Cu2+. The static adsorption capacity of the latex sponge before and after modification to methyl orange (MO) (negative charge), rhodamine B (RB) (neutral), methylene blue (MB) (positive charge), and Cu2+ under different...
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