5 years ago

Enhancing adsorption property of Engelhard Titanosilicate-10 through incorporation of graphene oxide

Enhancing adsorption property of Engelhard Titanosilicate-10 through incorporation of graphene oxide
Engelhard Titanosilicate-10 (ETS-10) has been studied widely for its adsorption and photocatalytic properties. The properties can be enhanced through various chemical approaches, such as modification of ETS-10 active sites with transition metal. In this work, graphene oxide incorporated ETS-10 (as GO/ETS-10) was prepared by refluxing the ETS-10 powder and GO suspension in water medium. The obtained GO/ETS-10, as revealed by X-ray photoelectron spectroscopy (XPS), was chemically bound through the carbon atoms of GO and the oxygen atoms on the surface of ETS-10. The GO/ETS-10 composite has shown exceptional adsorption properties towards cationic methylene blue (MB) in comparison to ETS-10 alone. However, results have shown that the GO/ETS-10 has poor adsorption affinity towards anionic methyl orange (MO) in water. The adsorption isotherms of GO/ETS-10 composite towards MB was best fitted to the Langmuir isotherm with maximum adsorption capacity of 286 mg·g 1 which was about 2 times higher than adsorption capacity of ETS-10 alone, i.e. 135 mg·g 1. Besides, adsorption kinetics of GO/ETS-10 was best fitted to the pseudo-second order model revealing that the chemisorption was dominant throughout the adsorption process. Considering the nature of GO/ETS-10 that is composed from less harmful elements, it has good potential in the environment remediation, such as water and air purification, with a good selectivity towards cationic molecules.

Publisher URL: www.sciencedirect.com/science

DOI: S1387181117304109

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.