• NANNAN WANG

      Articles written in Bulletin of Materials Science

    • Photoinduced synthesis of variable-sized magnetite nanoparticles and their photodegradation for orange II

      BO LIU NANNAN WANG JIAYING JIN HUI LIU RUFEN CHEN

      More Details Abstract Fulltext PDF

      Magnetite (Fe$_3$O$_4$) nanoparticles with different particle sizes (9.9–29.1 nm) were prepared by using the aerial oxidation method under light irradiation with various wavelengths at room temperature. The photocatalytic degradation of orange II using Fe$_3$O$_4$ nanoparticles as photocatalysts was evaluated. Experimental results showed that the particle sizes of Fe$_3$O$_4$ nanocrystals decreased gradually with the decreasing wavelengths of light irradiation. With the decrease in the size of the samples, the Fe$_3$O$_4$ nanoparticles exhibited a large surface area and high adsorption. Furthermore, the smallparticle-sized Fe$_3$O$_4$ sample could cause an appropriate red shift of the spectra and promote the decomposition of H$_2$O$_2$, and produce high-content ${}^{\bullet}$OH radicals, which lead to an improvement of photodegradation efficiency of orange II.

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.