Preparation of Modified Kaolin Filler with Cesium and Its Application in Security Paper

<table>Variation of uptake percentage with pH for cesium sorption on kaolin. Operating conditions: 50 mL solution, [Cs<sup>+</sup>] = 25 mg/L, 250 mg kaolin, and shaking time = 40 min.</table>

Advances in Materials Science and Engineering

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Figure 1

Figure 1: Preparation of Modified Kaolin Filler with Cesium and Its Application in Security Paper 