New micro/mesoporous nanocomposite material from low-cost sources for the efficient removal of aromatic and pathogenic pollutants from water

Beilstein Journal of Nanotechnology

Robert Nöske^3¹  Andreas Taubert^3²  Emmanuel I. Unuabonah^1^2^3^4^5^6⁴  Jens Weber^5⁵  Christina Günter^6⁶ 

[1] Department of Chemical Sciences, Redeemer’s University, PMB 230, Ede, Osun State, Nigeria^2;Department of Chemistry, Hochschule Zittau/Görlitz (University of Applied Science), Theodor-Körner-Allee 16, 02763 Zittau, Germany^5;Department of Earth and Environmental Science, University of Potsdam, 14476 Potsdam, Germany more less^6;Environmental and Chemical Processes Research Laboratory, Centre for Chemical and Biochemical Research, Redeemer’s University, PMB 230, Ede, Osun State, Nigeria^1;Institute of Chemistry, University of Potsdam, 14476 Potsdam, Germany^3;State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China^4

关键词: 4-nitrophenol;    Carica papaya seeds;    clay;    E. coli;    micro/mesoporous;    nanocomposite;    water remediation;   

DOI  :  10.3762/bjnano.10.11

学科分类：地球科学(综合)

来源: Beilstein - Institut zur Foerderung der Chemischen Wissenschaften

【 摘 要 】

A new micro/mesoporous hybrid clay nanocomposite prepared from kaolinite clay, Carica papaya seeds, and ZnCl₂ via calcination in an inert atmosphere is presented. Regardless of the synthesis temperature, the specific surface area of the nanocomposite material is between ≈150 and 300 m²/g. The material contains both micro- and mesopores in roughly equal amounts. X-ray diffraction, infrared spectroscopy, and solid-state nuclear magnetic resonance spectroscopy suggest the formation of several new bonds in the materials upon reaction of the precursors, thus confirming the formation of a new hybrid material. Thermogravimetric analysis/differential thermal analysis and elemental analysis confirm the presence of carbonaceous matter. The new composite is stable up to 900 °C and is an efficient adsorbent for the removal of a water micropollutant, 4-nitrophenol, and a pathogen, E. coli, from an aqueous medium, suggesting applications in water remediation are feasible.

【 授权许可】

CC BY