Synthesis of MnO<sub>2</sub> Hollow Nanospheres through Selective Etching Method as an Effective Absorbent to Remove Methyl Orange from Aqueous Solution

<div>Effect of solution pH on the MO adsorption (experimental conditions: initial dye concentration: 50 mg L<sup>-1</sup>, adsorbent dosage: 20 mg/200 mL, temperature: 288 K, and contact time: 120 min).</div>

Journal of Nanomaterials

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Figure 4

Figure 4: Synthesis of MnO<sub>2</sub> Hollow Nanospheres through Selective Etching Method as an Effective Absorbent to Remove Methyl Orange from Aqueous Solution 

Figure 4 | Synthesis of MnO2 Hollow Nanospheres through Selective Etching Method as an Effective Absorbent to Remove Methyl Orange from Aqueous Solution 