718467 Aldrich

Titanium(IV) oxide

nanopowder, 21 nm primary particle size (TEM), ≥99.5% trace metals basis

Synonym: Aeroxide® P25, Titania, Titanium dioxide



Related Categories 22: Ti, Alternative Energy, Materials Science, Metal and Ceramic Science, Nanomaterials,
assay   ≥99.5% trace metals basis
form   nanopowder
primary particle size   21 nm (TEM)
surface area   35-65 m2/g (BET)
mp   1850 °C
  >350 °C (lit.)
density   4.26 g/mL at 25 °C(lit.)



100 g in glass bottle


TiO2 nanoparticles were used to study the photocatalytic hexane vapor degradation. It has been used as a sorbent for arsenic removal. TiO2 nanoparticles are suitable for remediation of antiseptic components in wastewater by photocatalysis. It has also been used to study adsorption of DNA oligonucleotides by titanium dioxide nanoparticles.

General description

Two main physico-chemically distinct polymorphs of TiO2 are anatase and rutile. Anatase has a higher photocatalytic activity than rutile but is thermodynamically less stable.

Legal Information

Aeroxide is a registered trademark of Evonik Degussa GmbH

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Same Products - New Packaging
Protocols & Articles


A Review of Mesoporous TiO2 Thin Films

Jinshu Wang*, Junshu Wu, Hongyi Li The Key Lab of Advanced Functional Materials, Ministry of Education China, School of Materials Science and Engineering, Beijing University of Technology, Beijing 10...
Keywords: Adsorption, Building blocks, Catalysis, Ceramics, Condensations, Cosmetics, Degradations, Diffraction, Eliminations, Evaporation, Materials Science, Oxidations, Polymerization reactions, Semiconductor, Separation, Sol-gel

Efficient Dye-Sensitized Solar Cells for Direct Conversion of Sunlight to Electricity

Sunlight is an abundant natural resource and for many decades scientists have been interested to find ways and means of harnessing the energy from the sun. Researchers have explored many processes wh...
Kuppuswamy Kalyanasundaram, Michael Grätzel
Material Matters 2009, 4.4, 88.
Keywords: Absorption, Bacterial conjugations, Calorimetry, Capillary electrophoresis, Degradations, Electronics, Infrared spectroscopy, Ligands, Oxidations, Recombination, Reductions, Semiconductor, Separation, Solar cells, Solvents

Energy Harvesting Using Lead Zirconium Titanate-Based Ceramic Nanowires

Zhi Zhou1, Dr. Haixiong Tang1, Dr. Henry A. Sodano1,2* 1Department of Materials Science and Engineering 2Department of Mechanical and Aerospace Engineering University of Florida, Gainesville, Florida...
Keywords: Ceramics, Deposition, Diffraction, Electronics, Electrophoresis, Materials Science, Microscopy, Nanomaterials, PAGE, Solvents, Spectroscopy

Few Monolayer Atomic Layer Deposition (ALD) on Surfaces and Interfaces for Energy Applications

Department of Mechanical Engineering and Materials Science, One Brookings Drive, Washington University in St. Louis, St. Louis, MO 63130 *Email:
Peifu Cheng, Parag Banerjee*
Material Matters, 2018, 13.2
Keywords: Atomic layer deposition, Catalysis, Chemical reactions, Degradations, Dehydrogenation, Deposition, Hydrogenations, Ion Exchange, Ligands, Magnetic resonance spectroscopy, Materials Science, Nanomaterials, Oxidations, Photovoltaics, Precipitation, Recombination, Reductions, Renewable energy, Separation, Solar cells, Thin film deposition

Highly Efficient Nanoscale Inorganic Light Harvesters for Dye-sensitized Solar Cells

Nam-Gyu Park School of Chemical Engineering and Department of Energy Science Sungkyunkwan University, Suwon 440-746, Republic of Korea Email: Phone: +82-31-290-7241. Fax: +82-31-290-72...
Keywords: Absorption, Adsorption, Deposition, Infrared spectroscopy, Recombination, Semiconductor, Separation, Solar cells, Spectroscopy

Inverted Organic Photovoltaic Devices Using Zinc Oxide Nanocomposites as Electron Transporting Layer Materials

Bryce P. Nelson,1* Pengjie Shi,1 Wei Wei,1 Sai-Wing Tsang2 and Franky So3 1MilliporeSigma, 6000 N. Teutonia Ave., Milwaukee, WI, USA 53209 2Sai-Wing Tsang, Department of Physics and Materials Science...
Keywords: Adsorption, Crystallization, Diffusion, Materials Science, Nucleic acid annealing, Photovoltaics, Reductions, Sol-gel, Solar cells, Spectroscopy

Materials Issues in Polymer Electrolyte Membrane Fuel Cells

Fuel cells have the potential to reduce the nation’s energy use through increased energy conversion efficiency and dependence on imported petroleum by the use of hydrogen from renewable resources. Th...
Nancy L. Garland, Thomas G. Benjamin, John P. Kopasz
Material Matters 2008, 3.4, 85.
Keywords: Automotive, Catalysis, Combustion, Degradations, Diffusion, Electronics, Ligands, Mass spectrometry, Phase transitions, Reductions, Renewable energy, Separation

Materials for Clean H2 Production from Bioethanol Reforming

Hong Xie, Eric Weitz, and Kenneth R. Poeppelmeier* Center for Catalysis and Surface Science, Department of Chemistry Northwestern University 2145 Sheridan Road, Evanston, Illinois 60208 *krp@northwes...
Keywords: Absorption, Adsorption, Boudouard reaction, Catalysis, Dehydration reaction, Dehydrogenation, Deposition, Fermentation, Polymerization reactions, Precipitation, Redox Reactions, Renewable energy, Surface Science

Mesoporous Titanium Dioxide Thin Films

Titanium dioxide (TiO2) is an important n-type semiconducting material that shows interesting characteristics such as photoswitchable surface wettability, high photocatalytic activity, bistable elect...
Jinshu Wang, Junshu Wu, Hongyi Li
Material Matters, Volume 7, Number 2, 2–6
Keywords: Adsorption, Building blocks, Catalysis, Ceramics, Condensations, Cosmetics, Degradations, Diffraction, Eliminations, Evaporation, Materials Science, Oxidations, Polymerization reactions, Semiconductor, Separation, Sol-gel

Nanomaterials Toxicity Screening Strategies

Tian Xia,1,2 Huan Meng,1,2,† Saji George,1,2,† Haiyuan Zhang,1,2,† Xiang Wang,1,2,† Zhaoxia Ji,2,† Jeffrey I. Zink,2,3 Andre E. Nel1,2* 1Division of NanoMedicine, Department of Medicine, University o...
Keywords: Adhesion, Apoptosis, Biochemistry, Combinatorial library, Environmental, Enzyme activity, Inflammation, Lipid peroxidation, Nanomaterials, Nanotechnology, Oxidations, Peroxidations, Reproduction

Organic Dyes for Efficient and Stable Dye-Sensitized Solar Cells

Over the last decade, dye-sensitized solar cells (DSSCs) have attracted much attention because these unconventional solar cells exhibit high performance and have the potential for low-cost production...
Kohjiro Hara, Nagatoshi Koumura
Material Matters 2009, 4.4, 92.
Keywords: Absorption, Diffusion, Infrared spectroscopy, Oxidations, Photoexcitation, Photovoltaics, Recombination, Semiconductor, Solar cells, Spectroscopy, transformation

Precise Nanoparticles for Optoelectronics Applications

Inorganic nanomaterials are tunable by size, shape, structure, and/or composition. Advances in the synthesis of well-defined nanomaterials have enabled control over their unique optical, electronic, ...
Benny Pacheco, Scott Kordyban
Material Matters Volume 7 Number 1
Keywords: Absorption, Bacterial conjugations, Deposition, Immobilization, Infrared spectroscopy, Materials Science, Microscopy, Nanomaterials, Scanning electron microscopy, Semiconductor, Sonication

Recent Advances in Hybrid Halide Perovskites-based Solar Cells

Kuppuswamy Kalyanasundaram, Shaik. M. Zakeeruddin, Michaël Grätzel* Laboratory for Photonics and Interfaces (LPI) Swiss Federal Institute of Technology at Lausanne (EPFL) 1015 Lausanne, Switzerland *...
Kuppuswamy Kalyanasundaram, Shaik. M. Zakeeruddin, Michaël Grätzel
Material Matters, 2016, 11.1, 3
Keywords: Absorption, Atomic layer deposition, Capillary electrophoresis, Degradations, Deposition, Diffusion, Environmental, Infrared spectroscopy, Nanomaterials, Nanotubes, Nucleic acid annealing, Recombination, Semiconductor, Separation, Sol-gel, Solar cells, Solvents, Spectroscopy, Spin coating, Substitutions

Synthesis of ZnO Aggregates and Their Application in Dye-sensitized Solar Cells

Solar energy, as the primary source of energy for all living organisms on Earth, is considered the ultimate solution to the energy and environmental challenge as a carbon-neutral energy source. Many ...
Qifeng Zhang, Kwangsuk Park, Guozhong Cao
Material Matters 2010, 5.2, 32.
Keywords: Absorption, Adsorption, Atomic layer deposition, Calorimetry, Centrifugation, Chemical reactions, Degradations, Deposition, Diffraction, Diffusion, Environmental, Hydrogenations, Ligands, Materials Science, Photovoltaics, Precipitation, Recombination, Scanning electron microscopy, Semiconductor, Solar cells, Spectroscopy, X-Ray diffraction

Thiolated gold nanoclusters: A new class of photosensitizers

Kevin Stamplecoskie, Yong-Siou Chen, Prashant V. Kamat* Radiation Laboratory and Department of Chemistry and Biochemistry University of Notre Dame, Notre Dame, Indiana, USA *Email:
Keywords: Absorption, Biochemistry, Diffraction, Ligands, Nanomaterials, Oxidations, Photovoltaics, Reductions, Solar cells, Spectroscopy, X-Ray diffraction

Titania Nanotubes: Synthesis and Applications

Eugen Panaitescu1 and Latika Menon2 Department of Physics Northeastern University, Boston, MA 02115 USA Email:,
Keywords: Adsorption, Agriculture, Antimicrobials, Apoptosis, Automotive, Calorimetry, Cosmetics, Degradations, Deposition, Diffusion, Electrochemical analysis, Environmental, Filtration, Melting, Nanotubes, Oxidations, Photovoltaics, Precipitation, Recombination, Redox Reactions, Reductions, Semiconductor, Separation, Sol-gel, Solar cells, Solvents

Ultra-High Efficiency Perovskite-Perovskite Tandem Solar Cells

Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, USA *Email:
Zhen Li and Kai Zhu*
Material Matters, 2018, 13.1
Keywords: Absorption, Adhesion, Degradations, Deposition, Diffraction, Evaporation, Infrared spectroscopy, Nanotubes, Nucleic acid annealing, Oxidations, Photovoltaics, Recombination, Renewable energy, Semiconductor, Solar cells, Solvents, Ultraviolet-Visible spectroscopy, X-Ray diffraction

Peer-Reviewed Papers


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