3 years ago

Enhanced Separation Performance for CO2 Gas of Mixed-Matrix Membranes Incorporated with TiO2/Graphene Oxide: Synergistic Effect of Graphene Oxide and Small TiO2 Particles on Gas Permeability of Membranes

Enhanced Separation Performance for CO2 Gas of Mixed-Matrix Membranes Incorporated with TiO2/Graphene Oxide: Synergistic Effect of Graphene Oxide and Small TiO2 Particles on Gas Permeability of Membranes
Zhuan Yi, Chun-Li Man, Cai-hong Yang, Bart Van der Bruggen, Jiang-nan Shen, Ting Wang, Wan-Lei Xue, Li-guang Wu
This study combines the adsorption layer nanoreactor synthesis (ALRS) method with in situ polymerization to prepare high-performance separation hybrid membranes containing TiO2-graphene oxide (TiO2-GO). TiO2 nanoparticles were initially generated on the GO surface through ALRS. Hybrid membranes containing A-TiO2-GO were then prepared using in situ polymerization. The inhibition of aggregation by the strong combination between the small TiO2 particles and the GO surface led to a homogeneous distribution of TiO2-GO in the polymeric matrix. This, in turn, caused a significant improvement of the membranes performance for CO2 separation. Both the small TiO2 particles and GO played an important role in increasing the gas separation performance of membranes. In particular, TiO2 small particles, with a polar surface, promoted the CO2 diffusion through the membranes, while GO addition significantly increased the solubility selectivity of the membranes toward CO2.

Publisher URL: http://dx.doi.org/10.1021/acs.iecr.7b02191

DOI: 10.1021/acs.iecr.7b02191

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.