Tea Stem as a Sorbent for Removal of Methylene Blue from Aqueous Phase

<div>(a) Effect of pH of MB solution on the removal efficiency and (b) the point of zero charge for tea stem (<i>C</i> = 300 mg/L; RM = 4 g/L; temp. = 298 K; time = 60 min).</div>

Advances in Materials Science and Engineering

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Figure 4

Figure 4: Tea Stem as a Sorbent for Removal of Methylene Blue from Aqueous Phase 