Results 1 to 10 of about 191 (94)

COF-supported zirconium oxyhydroxide as a versatile heterogeneous catalyst for Knoevenagel condensation and nerve agent hydrolysis [PDF]

iScience, 2023
Summary: A composite of catalytic Lewis acidic zirconium oxyhydroxides (8 wt %) and a covalent organic framework (COF) was synthesized. X-ray diffraction and infrared (IR) spectroscopy reveal that COF’s structure is preserved after loading with zirconium
Pragalbh Shekhar, Venkata Swaroopa Datta Devulapalli, Reshma Reji, Himan Dev Singh, Aleena Jose, Piyush Singh, Arun Torris, Chatakudath P. Vinod, John A. Tokarz, III, John J. Mahle, Gregory W. Peterson, Eric Borguet, Ramanathan Vaidhyanathan   +12 more
doaj   +6 more sources

Sorbents based on xerogels of zirconium, aluminum and manganese oxyhydroxides [PDF]

Trudy Odesskogo Politehničeskogo Universiteta, 2016
The actual problem of water supply in the world and in Ukraine, in particular, is a high level of pollution in water resources and an insufficient level of drinking water purification.
R.V. Smotraiev, E.O. Sorochkina, А.V. Dzuba, Y.D. Galivets   +3 more
doaj   +8 more sources

Synthesis of a novel zirconium-based adsorbent (ZBA) and the elucidation of adsorption capability of arsenic using ZBA, zirconium oxide, and zirconium hydroxide

Results in Chemistry
A novel zirconium-based adsorbent (ZBA) was prepared and characterized. The results were compared to those of zirconium oxide (ZrO2) and zirconium hydroxide (Zr(OH)4). Moreover, the arsenic adsorption capacity of the ZBA was demonstrated.
Fumihiko Ogata, Noriaki Nagai, Yugo Uematsu, Hitoka Ito, Chalermpong Saenjum, Naohito Kawasaki   +5 more
doaj   +3 more sources

The influence of ultraviolet radiation power on the structure formation of zirconium oxyhydroxide

Bulletin of the South Ural State University Series Chemistry
Metal oxide materials, including zirconium dioxide, are widely used in various modern technologies due to their high strength, chemical inertness, and thermal stability. Regulating the functional proper-ties of these materials requires understanding the growth patterns of their nano- and microstructures, as well as the influence of various factors on ...
D Zherebtsov, V Avdin
exaly   +2 more sources

Potential of zirconium-based materials for the removal and recovery of tungsten ions from the aqueous phase

Results in Chemistry
Tungsten(W), which exists as oxoanion species in water, is regarded as a water pollutant and is a valuable material in various industrial fields. Therefore, the adsorption (removal) of W ions from aqueous solutions and their subsequent desorption ...
Fumihiko Ogata, Akito Ookawa, Noriaki Nagai, Yuri Mizuno, Yugo Uematsu, Chalermpong Saenjum, Naohito Kawasaki   +6 more
doaj   +1 more source

Polymerised forms in the zirconium conversion coatings on cold-rolled steel: proof of concept

npj Materials Degradation
This study validates the proposed polymerised structure, including tetrameric polynuclear species, of solid amorphous oxyhydroxide zirconium conversion coatings on cold-rolled steel using ToF-SIMS. Tetramers are formed at pH near 4 (and possibly higher),
Ana Kraš, Ingrid Milošev, Antoine Seyeux, Philippe Marcus   +3 more
doaj   +1 more source

Evaluation of Structural Stability, Mechanical Properties, and Corrosion Resistance of Magnesia Partially Stabilized Zirconia (Mg-PSZ). [PDF]

Molecules, 2023
Yusuf D, Maryani E, Mardhian DF, Noviyanti AR.   +3 more
europepmc   +1 more source

Overlooked riverine contributions of dissolved neodymium and hafnium to the Amazon estuary and oceans. [PDF]

Nat Commun, 2023
Xu A, Hathorne E, Laukert G, Frank M.
europepmc   +1 more source

Metal Oxyhydroxide Catalysts Promoted CO₂ Absorption and Desorption in Amine-Based Carbon Capture: A Feasibility Study. [PDF]

ACS Omega, 2022
Ji L, Li J, Zhai R, Wang J, Wang X, Yan S, Hua M.   +6 more
europepmc   +1 more source

Perspectives on the Development of Filter Media for Point of Use Water Filters: Case Study of Arsenate Removal. [PDF]

Front Chem, 2022
Chigome S, Andala D, Kabomo M, Mobegi E.
europepmc   +1 more source