• 文献标题:   Coal Fly Ash Decorated with Graphene Oxide-Tungsten Oxide Nanocomposite for Rapid Removal of Pb2+ Ions and Reuse of Spent Adsorbent for Photocatalytic Degradation of Acetaminophen
  • 文献类型:   Article
  • 作  者:   UMEJURU EC, PRABAKARAN E, PILLAY K
  • 作者关键词:  
  • 出版物名称:   ACS OMEGA
  • ISSN:   2470-1343
  • 通讯作者地址:  
  • 被引频次:   11
  • DOI:   10.1021/acsomega.0c04194 EA APR 2021
  • 出版年:   2021

▎ 摘  要

Coal fly ash was decorated with a graphene oxide-tungsten oxide nanorods nanocomposite (CFA/GO/WO(3)NRs nanocomposite) via a hydrothermal method and applied for the remediation of lead (Pb2+ ions). The Pb2+ ion-loaded spent adsorbent (CFA/GO/WO(3)NRs + Pb2+ nanocomposite) was reused for the photodegradation of acetaminophen. CFA/GO/WO(3)NRs + Pb2+ nanocomposite displayed rapid removal of Pb2+ ions. Pseudo-second-order kinetics and the Langmuir isotherm model described the adsorption data. The adsorption capacity of the CFA/GO/WO(3)NRs nanocomposite was 41.51 mg/g for the removal of Pb2+ ions. Additionally, the Pb2+ ion-loaded spent adsorbent significantly influenced the degradation of acetaminophen by photocatalysis where 93% degradation was observed. It is worthy to note the reuse application of Pb2+ ion-loaded spent adsorbent as a photocatalyst, which will significantly reduce the secondary waste obtained from conventional adsorption methods.