At pH > 7, every sample exhibits a decreasing trend of adsorption and removal rate.
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The Role of Micromorphology of SnS<sub>2</sub> on the Adsorption Process of Methylene Blue.
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The sentences
At pH < 7, the adsorption capacity of all SnS 2 showed an increasing trend, the adsorption capacity of granular SnS 2 was bigger than that of flower-like SnS 2 , and the adsorption capacity of flake SnS 2 was the smallest.
It can be seen that with increasing adsorption time, the adsorption capacity of each SnS 2 showed a trend of rapid increase and then tended to equilibrium.