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TiO2/PKSAC functionalized with Fe3O4 for efficient concurrent removal of heavy metal ions from water
Colloid and Interface Science Communications ( IF 4.5 ) Pub Date : 2021-01-05 , DOI: 10.1016/j.colcom.2020.100353
Devagi Kanakaraju , Mohamad Azim Bin Abdullah , Lim Ying Chin

An effective material to assist in the elimination of heavy metal contaminants in the water system is necessary, as they persist for a long period in the environment. A novel multifarious TiO2/PKSAC/Fe3O4 composite with combined properties namely adsorption, photocatalytic and magnetic was successfully synthesized and applied for the simultaneous removal of mixed heavy metals, Pb(II), Cu(II), and Ni(II) under various conditions. Characterizations confirmed the fabrication of TiO2/PKSAC/Fe3O4 composite. An optimal adsorbent dosage of 0.9 g/L allowed >80% removal efficiency in 10 ppm of mixed metal ions solution. Among all three catalyst ratios, the equivalent mass ratio of 1:1:1 (TiO2/PKSAC/Fe3O4) demonstrated the best performance (>72%) in removing Pb(II), Cu(II), and Ni(II) ions, even after the addition of coexisting ions (Ca2+, Na+, Cl, Br) during the treatment. A recycling study confirmed the materials' regenerative stability. The fabricated TiO2/PKSAC/Fe3O4 composite can be applied as an effective material for heavy metals removal in wastewater.



中文翻译:

Fe 3 O 4官能化的TiO 2 / PKSAC可有效地同时去除水中的重金属离子

需要一种有效的材料来帮助消除水系统中的重金属污染物,因为它们会在环境中长期存在。成功合成了一种兼具吸附,光催化和磁性等特性的新型TiO 2 / PKSAC / Fe 3 O 4复合材料,并将其应用于同时去除混合重金属,Pb(II),Cu(II)和Ni(II) )。表征证实了TiO 2 / PKSAC / Fe 3 O 4复合材料的制备。0.9 g / L的最佳吸附剂量可在10 ppm的混合金属离子溶液中实现> 80%的去除效率。在所有三种催化剂比例中,当量质量比为1:1:1(TiO2 / PKSAC / Fe 3 O 4)显示出去除Pb(II),Cu(II)和Ni(II)离子的最佳性能(> 72%),即使添加了共存离子(Ca 2 +,Na +,氯- ,溴-在治疗过程中)。一项回收研究证实了该材料的再生稳定性。制备的TiO 2 / PKSAC / Fe 3 O 4复合材料可作为有效的去除废水中重金属的材料。

更新日期:2021-01-05
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