Stabilized nanoparticle compositions comprising ions

1. A method of treating a subterranean formation, the method comprising:

placing in a subterranean formation a composition comprising:

a coated nanoparticle comprising:

a nanoparticle;

a linker comprising an anchoring group, a spacer, and a terminal group; and

wherein the anchoring group is covalently bound to the nanoparticle and at least one of the terminal groups is covalently bound to a stabilizing group comprising a functional group selected from the group consisting of:

and combinations thereof, and

an ion.

2. The method of claim 1 , wherein the composition further comprises an aqueous liquid.

3. The method of claim 2 , wherein the aqueous liquid comprises at least one of water, brine, produced water, flowback water, brackish water, fresh water, Arab-D-brine, sea water, mineral waters, and other waters of varying salinity and mineral concentration.

4. The method of claim 1 , wherein the coated nanoparticles have a lower critical solution temperature of greater than 90° C.

5. The method of claim 1 , wherein the method further comprises obtaining or providing the composition, wherein the obtaining or providing of the composition occurs above-surface.

6. The method of claim 1 , wherein the nanoparticle is selected from the group consisting of a silica nanoparticle, a metal oxide nanoparticle, an upconverting nanoparticle, a superparamagnetic nanoparticle, and mixtures thereof.

7. The method of claim 1 , wherein the nanoparticle comprises a metal oxide.

8. The method of claim 1 , wherein the nanoparticle comprises a superparamagnetic metal oxide.

9. The method of claim 1 , wherein the nanoparticle is a silica nanoparticle.

10. The method of claim 1 , wherein the nanoparticle has a particle size of about 10 to about 100 nm.

11. The method of claim 1 , wherein the anchoring group is a silane.

12. The method of claim 1 , wherein the linker comprises polyethylenimine.

13. The method of claim 1 , wherein the nanoparticle covalently bound to the linker is obtained by reacting trimethoxysilylpropyl modified polyethylenimine with the nanoparticle.

14. The method of claim 1 , wherein the ion comprises one or more of a lithium ion, a sodium ion, a potassium ion, a silver ion, a magnesium ion, a calcium ion, a barium ion, a zinc ion, an aluminum ion, a bismuth ion, a copper (I) ion, a copper (II) ion, an iron (II) ion, an iron (III) ion, a tin (II) ion, a tin (IV) ion, a chromium (II) ion, a chromium (III) ion, a manganese (II) ion, a manganese (III) ion, a mercury (I) ion, a mercury (II) ion, a lead (II) ion, a lead (IV) ion, a cobalt (II) ion, a cobalt (III) ion, a nickel ion (II), a nickel (IV) ion, a titanium ion, and a titanium (IV) ion.

15. The method of claim 1 , wherein the ion comprises a calcium ion.

16. The method of claim 5 , wherein the providing or obtaining the composition comprises determining the presence and concentration of at least one ion of a water in a subterranean formation and doping the composition with the determined ion.

17. The method of claim 16 , wherein doping the composition with the determined ion comprises increasing the amount of the determined ion in the composition such that molarity of the determined ion in the composition is at least 10% of the molarity of the at least one ion of the water in the subterranean formation.