Search results

Search for "photocatalytic activity" in Full Text gives 131 result(s) in Beilstein Journal of Nanotechnology.

Paper modified with ZnO nanorods – antimicrobial studies

  • Mayuree Jaisai,
  • Sunandan Baruah and
  • Joydeep Dutta

Beilstein J. Nanotechnol. 2012, 3, 684–691, doi:10.3762/bjnano.3.78

Graphical Abstract
  • superoxide anions (·O2−), hydrogen peroxide (H2O2), hydroxyl radicals (·OH), hydrogendioxide anion (HO2−), and hydroperoxy radicals (·HO2). Surface area and surface defects play an important role in the photocatalytic activity of metal-oxide nanostructures. One-dimensional nanostructures such as nanorods
PDF
Album
Full Research Paper
Published 11 Oct 2012

Mesoporous MgTa2O6 thin films with enhanced photocatalytic activity: On the interplay between crystallinity and mesostructure

  • Jin-Ming Wu,
  • Igor Djerdj,
  • Till von Graberg and
  • Bernd M. Smarsly

Beilstein J. Nanotechnol. 2012, 3, 123–133, doi:10.3762/bjnano.3.13

Graphical Abstract
  • of the mesoporous films to assist the photodegradation of rhodamine B in water was studied. As a result, two maxima in the photocatalytic activity were identified in the calcination temperature range of 550–850 °C, peaking at 700 °C and 790 °C, and the origin of this was investigated by using
  • achieved in order to optimize the physicochemical performance of mesoporous metal-oxide films. Keywords: magnesium tantalate; mesoporous materials; photocatalytic activity; self-assembly; thin films; Introduction Because of its excellent microwave dielectric properties, MgTa2O6 is one of the ternary
  • photocatalytic activity is quite low. With the help of a block polymer P123, a Mg–Ta oxide powder with highly ordered mesopores was previously synthesized [11]. After removal of the P123 template by washing in water, the wormholelike microporous MgTa2O6 powder, though amorphous, showed enhanced water
PDF
Album
Supp Info
Video
Full Research Paper
Published 13 Feb 2012

Self-assembled monolayers and titanium dioxide: From surface patterning to potential applications

  • Yaron Paz

Beilstein J. Nanotechnol. 2011, 2, 845–861, doi:10.3762/bjnano.2.94

Graphical Abstract
PDF
Album
Review
Published 20 Dec 2011

Synthesis and catalytic applications of combined zeolitic/mesoporous materials

  • Jarian Vernimmen,
  • Vera Meynen and
  • Pegie Cool

Beilstein J. Nanotechnol. 2011, 2, 785–801, doi:10.3762/bjnano.2.87

Graphical Abstract
  • properties and their photocatalytic activity in photodegradation processes [169], TiO2 formation often needs to be avoided in the synthesis of Ti-containing nanoporous siliceous materials since its presence can be detrimental for the catalytic activity associated with tetrahedrally coordinated Ti [170][171
PDF
Album
Review
Published 30 Nov 2011
Graphical Abstract
  • water contact angle could be attributed to the degradation of the low-surface-energy alkyl group due to the photocatalytic activity of anatase titania [47]. This was further confirmed by a simple control experiment. A superhydrophobic silica nanograss surface was produced by a similar DecTMS treatment
PDF
Album
Supp Info
Full Research Paper
Published 23 Nov 2011

Enhanced visible light photocatalysis through fast crystallization of zinc oxide nanorods

  • Sunandan Baruah,
  • Mohammad Abbas Mahmood,
  • Myo Tay Zar Myint,
  • Tanujjal Bora and
  • Joydeep Dutta

Beilstein J. Nanotechnol. 2010, 1, 14–20, doi:10.3762/bjnano.1.3

Graphical Abstract
  • Abstract Hydrothermally grown ZnO nanorods have inherent crystalline defects primarily due to oxygen vacancies that enhance optical absorption in the visible spectrum, opening up possibilities for visible light photocatalysis. Comparison of photocatalytic activity of ZnO nanorods and nanoparticle films on
  • form of interstitials and vacancies, were intentionally created by faster growth of the nanorods by microwave activation. Visible light photocatalytic activity was observed to improve by ≈8% attributed to the availability of more electron deficient sites on the nanorod surfaces. Engineered defect
  • surface defects play an important role in the photocatalytic activity of metal-oxide nanostructures, as the contaminant molecules need to be adsorbed on to the photocatalytic surface for the redox reactions to occur. The higher the effective surface area, the higher will be the adsorption of target
PDF
Album
Full Research Paper
Published 22 Nov 2010
Other Beilstein-Institut Open Science Activities