Inorganic oxides and hydroxides, such as clays and hydrotalcite
, are efficient fillers as well in rubber composites, and also in hybrid filler systems (refs.
Among many other procedures a few using titanium tetrachloride , 1,5,7 triazabicyclo[4.4.0]dec-5-ene immobilized in MCM-41 , modified Mg-Al hydrotalcite
, rare earthexchanged NaY zeolite , USY zeolite , aluminium oxide , water , highpressure , ethylenediammonium diacetate in ionic liquid , Lewis acidic ionic liquid [bPy]Cl.AlCb , glycine in ionic acid , hydrotalcites
in ionic liquid , may be mentioned.
Metal hydroxide with divalent and trivalent metal ions, with adjustable degeneration, can form the hydrotalcite
with catalytic activity by introducing with transition metal ions, such as Cu2+ , Ni2+ and Co2+ etc [3,4].
[39-43] proposed the characterization of Mg-Al hydrotalcite
conversion coating on Mg alloy.
Other materials like Mg/Fe hydrotalcite
type compounds, hematite, magnetite, iron-coated GAC, and magnetic Fe/Mn oxide nanomaterials also have high affinity for selenium [11-15].
For the case of the materials synthesized before calcination (Figure 1(a)) it can be observed that all materials, independently of the Mg/Al ratio, exhibited the crystalline structure of the hydrotalcite
upon the characteristic signals (003), (006), (009), (015), (018), (110), and (113) (JCPDS card 22 0700).
Yang, "Adsorption of Cr(VI) and phosphate on Mg-Al hydrotalcite
supported kaolin clay prepared by ultrasound-assisted coprecipitation method using batch and fixed-bed systems," Industrial & Engineering Chemistry Research, vol.
Mitamura, Sengoku and Tanaka developed a stable, transparent PVC material consisting of 100 parts by weight PVC, 0.01 to 10 parts zinc salts, 0.01 to 10 parts zinc-modified hydrotalcite
compounds, and 0.01 to 3 parts phosphite ester compounds.
Synthesis of 3-glycidoxypropyltrimethoxysilane modified hydrotalcite
bearing molybdate as corrosion inhibitor for waterborne epoxy coating--To Thi Xuan Hang, Nguyen Tuan Anh, Trinh Anh True, Bui Van Truoc, Thai Hoang, Dinh Thi Mai Thanh, and Siriporn Daopiset
Ma "The influence of vanadate in calcined Mg/Al hydrotalcite
synthesis on adsorption of vanadium (V) from aqueous solution" Chemical Engineering Journal 181182: 182 188 (2012).