用于从水中去除铅离子和镉离子的NiO-CuO/活性炭纳米复合材料的简便合成

Facile Synthesis of NiO-CuO/Activated Carbon Nanocomposites for Use in the Removal of Lead and Cadmium Ions from Water.

作者信息

Hashem Bara'ah Yahya, Alswat Abdullah A, Ali Shaimaa L, Al-Odaini Najat A, Alshorifi Fares T

机构信息

Department of Chemistry, Faculty of Education, Sana'a University, Sana'a72738, Yemen.

Department of Chemistry, Faculty of Education and Applied Science-Arhab Sana'a University, Sana'a72738, Yemen.

出版信息

ACS Omega. 2022 Dec 7;7(50):47183-47191. doi: 10.1021/acsomega.2c06352. eCollection 2022 Dec 20.

In this work, activated carbon (AC) was synthesized and then modified using nickel(II) oxide and copper(II) oxide. Pure-AC, 10, 20, 30, and 40 wt % nanohybrid NiO-CuO/AC nanocomposites (χ-NC/AC NCs) were characterized using XRD, IR, EDS, surface area, and FE-SEM techniques. Furthermore, the adsorbents obtained were tested for their ability to remove hazardous Pb(II) and Cd(II) from water. The fabricated -NC/AC NC adsorbents showed the highest adsorptive performance toward the adsorption of Pb(II) and Cd(II) from water. The 30-NC/AC NC adsorbent showed the complete removal of Pb(II) at pH = 5 and Cd(II) at pH = 7 within 30 min. Overall, the obtained superior experimental results suggest that the adsorptive performance of AC was greatly enhanced after loading hybrid metal oxide nanoparticles, so its application in water treatment is potential and applicable.

在本工作中，合成了活性炭（AC），然后用氧化镍（II）和氧化铜（II）对其进行改性。使用X射线衍射（XRD）、红外光谱（IR）、能谱分析（EDS）、比表面积和场发射扫描电子显微镜（FE-SEM）技术对纯AC、10%、20%、30%和40%重量百分比的纳米杂化氧化镍-氧化铜/活性炭（χ-NC/AC NCs）纳米复合材料进行了表征。此外，对所制备的吸附剂去除水中有害铅（II）和镉（II）的能力进行了测试。所制备的χ-NC/AC NC吸附剂对水中铅（II）和镉（II）的吸附表现出最高的吸附性能。30%-NC/AC NC吸附剂在pH = 5时30分钟内可完全去除铅（II），在pH = 7时30分钟内可完全去除镉（II）。总体而言，所获得的优异实验结果表明，负载杂化金属氧化物纳米颗粒后，活性炭的吸附性能得到了极大提高，因此其在水处理中的应用具有潜力且切实可行。