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. 2019 Oct 24;4(19):18381–18391. doi: 10.1021/acsomega.9b02647

Table 3. Comparison of the Capacity of Original SiO2 and Fluorescent Microspheres in Adsorption of Hg2+a.

  original SiO2 SiNBB SiNBIT SiNBIO
initial Hg2+/mg 150 150 150 150
adsorption quality m1 mg/50 mg·1 h 28.2 145.7 49.9 49.4
adsorption quality m2 mg/50 mg·5 h 69.3 149.6 108.6 128.4
adsorption efficiency Y1/50 mg·1 h 18.8% 97.1% 33.2% 32.9%
adsorption efficiency Y2/50 mg·5 h 46.2% 99.7% 72.4% 85.6%
absolute adsorption quality M 0.56 g 2.91 g 0.99 g 0.98 g
a

Performance of original SiO2 and fluorescent microspheres for adsorption of Hg2+ by AAS (“M” is the mass of Hg2+ that can be adsorbed by per gram of microspheres).