The exploration of highly efficient and stable visible-light-driven photocatalysts for wastewater treatment has been recognized as one of the most challenging topics in environmental remediation. In this study, we report a new type of Mn/N co-doped TiO2 supported on wood-based activated carbon fiber (Mn–N/TiO2-WACF) composite material that can be synthesized via sol–gel method. XRD indicates that the nano-TiO2 particles in the composites are in the anatase phase (except when calcined at 850 °C) and the average crystallite size is approximately 23–33 nm. Doping with Mn and N significantly inhibits the crystal phase transformation of TiO2 from anatase to rutile. Photocatalytic experiments confirm that the Mn–N/TiO2-WACF catalysts are highly efficient and robust for the photodegradation of methylene blue under visible light irradiation (λ > 420 nm). Mn–N/TiO2-WACF exhibits the highest photocatalytic activity (reaches 99%) after calcined at 550 °C. The introduction of Mn and N not only improves the light adsorption and redox activity of TiO2, but also promotes photochemical stability because of narrow band gap energy and lower recombination rate of photoinduced electron–hole pairs. Composite photocatalysts such as these materials are important in the ongoing effort to design and explore new low cost, high efficiency, robust photocatalytic materials.
Journal of Materials Science – Springer Journals
Published: May 16, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera