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US 2026/0132086 A1Published application
Mixed metal oxide nanocomposite and process of making the nanocomposite
AssigneeImam Mohammad Ibn Saud Islamic University
InventorEhab Abdelhamed Abdelrahman AHMED
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Abstract
A mixed metal oxide nanocomposite comprises magnesium, titanium, boron, and oxygen. The nanocomposite comprises a first phase of magnesium titanium oxide (MgTi2O5) and a second phase of magnesium borate (Mg3B2O6). The first phase and the second phase are present as a homogeneous mixture within the nanocomposite and exhibit an orthorhombic crystal system. The nanocomposite is mesoporous with a mean pore diameter of 5 to 10 nm.
Claims20
1:
- A mixed metal oxide nanocomposite, comprising:
- magnesium;
- titanium;
- boron;
- and
- oxygen,
- wherein the magnesium, the titanium, and the oxygen form a first phase, MgTi2O5,
- wherein the magnesium, the boron, and the oxygen form a second phase, Mg3B2O6,
- wherein the first phase and the second phase are present as a homogenous mixture of phases in the mixed metal oxide nanocomposite and have an orthorhombic crystal system,
- wherein the mixed metal oxide nanocomposite is mesoporous with a mean pore diameter of 5 to 10 nm.
7 more elements
2:
- The mixed metal oxide nanocomposite of claim 1, having a total pore volume of 0.2 to 0.3 cm3/g.
3:
- The mixed metal oxide nanocomposite of claim 1, having a mean pore diameter of 6 to 7 nm.
4:
- The mixed metal oxide nanocomposite of claim 1, having an average Brunauer-Emmett-Teller surface area of 70 to 80 m2/g.
5:
- The mixed metal oxide nanocomposite of claim 1, having an average crystallite size of 60 to 70 nm.
6:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 17 to 190 corresponding to a Miller index of (200).
7:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 32 to 330 corresponding to a Miller index of (230).
8:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 36 to 380 corresponding to a Miller index of (400).
9:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 40 to 420 corresponding to a Miller index of (321).
10:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 45 to 470 corresponding to a Miller index of (430).
11:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 48 to 490 corresponding to a Miller index of (002).
12:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 55 to 560 corresponding to a Miller index of (222).
13:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 56 to 570 corresponding to a Miller index of (521).
14:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 59 to 610 corresponding to a Miller index of (351).
15:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 61 to 620 corresponding to a Miller index of (161).
16:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 65 to 660 corresponding to a Miller index of (422).
17:
- The mixed metal oxide nanocomposite of claim 1, wherein the first phase has an X-ray diffraction angle at 68 to 700 corresponding to a Miller index of (432).
18:
- The mixed metal oxide nanocomposite of claim 1, wherein the second phase has X-ray diffraction angles at 25 to 26°, 52 to 53°, and 68 to 690 corresponding to Miller indices of (101), (202), and (251).
19:
- The mixed metal oxide nanocomposite of claim 1, consisting of MgTi2O5 and Mg3B2O6.
20:
- The mixed metal oxide nanocomposite of claim 1, wherein the nanocomposite is made by a process comprising:
- dissolving a magnesium salt in water to form a first solution;
- dissolving boric acid in water to form a second solution;
- mixing the first solution and the second solution to form a third solution;
- mixing a titanium alkoxide and a first acid in an alcohol to form a fourth solution;
- mixing the third solution and the fourth solution to form a fifth solution;
- mixing a second acid and water to form a sixth solution;
- mixing the fifth solution and the sixth solution to form a seventh solution;
- adding ethylene glycol to the seventh solution to form an eighth solution;
- heating the eighth solution to a temperature of 110 to 130° C. to form a powder;
- and
- calcinating the powder at a temperature of 600 to 700° C. for 1 to 3 hours to form the nanocomposite.
9 more elements