A composite photocatalyst is provided. The composite photocatalyst includes a nanomotor and a plurality of cocatalysts, the nanomotor comprises a shell formed by porous material, at least one inner core formed by a photocatalyst, and a cavity between the shell and the at least one inner core, the plurality of cocatalysts are located in the cavity. The plurality of cocatalysts are selected from the group consisting of metal nanoparticles, metal oxide nanoparticles, metal sulfide nanoparticles, phosphate nanoparticles, up-conversion material nanoparticles, and any combination thereof. A method for making the composite photocatalyst and application thereof are further provided. The plurality of cocatalysts and the nanomotor forms a photocatalytic synergistic reaction system, improving photo-catalytic activity of the composite photocatalyst.

The present invention is in the field of heterogeneous catalysis.

Particularly, the present invention relates to a process for preparing catalysts advantageously usable in the hydrotreatment processes, for example in hydrodesulphurization, hydrodenitrogenation, hydrodearomatization processes of hydrocarbons.

More in particular, the present invention relates to a process for obtaining said catalysts, which comprise mixed oxides of Nickel, Aluminum, Molybdenum and Tungsten and optionally a transition metal Me selected from the group consisting of Zn, Mn, Cd, and a mixture thereof, an organic component C, and possibly an inorganic binder B.

Said mixed oxides comprise an amorphous phase and a pseudo-crystalline phase isostructural to Wolframite.

The present invention further relates to said hydrotreatment catalysts and a hydrotreatment process wherein said catalysts are used.

The present invention is in the field of heterogeneous catalysis.

Particularly, the present invention relates to a process for preparing catalysts advantageously usable in the hydrotreatment processes, for example in hydrodesulphurization, hydrodenitrogenation, hydrodearomatization processes of hydrocarbons.

More in particular, the present invention relates to a process for obtaining said catalysts, which comprise mixed oxides of Nickel, Aluminum, Molybdenum and Tungsten and optionally a transition metal Me selected from the group consisting of Zn, Mn, Cd, and a mixture thereof, an organic component C, and possibly an inorganic binder B.

Said mixed oxides comprise an amorphous phase and a pseudo-crystalline phase isostructural to Wolframite.

The present invention further relates to said hydrotreatment catalysts and a hydrotreatment process wherein said catalysts are used.

Embodiments of the invention are directed to Z-scheme photocatalyst for efficient hydrogen generation from water. The Z-scheme photocatalyst can include a hybrid metal that includes a semiconductor material/M1/Cd.sub.xM.sub.1xS material. M1 can be transition metal and M can Zn, Fe, Cu, Sn, Mo, Ag, Pb and Ni.

Embodiments of the invention are directed to Z-scheme photocatalyst for efficient hydrogen generation from water. The Z-scheme photocatalyst can include a hybrid metal that includes a semiconductor material/M1/Cd.sub.xM.sub.1xS material. M1 can be transition metal and M can Zn, Fe, Cu, Sn, Mo, Ag, Pb and Ni.

In one embodiment, a method of producing an sp3 bonded C.sub.3N.sub.4 product includes contacting a starting material with a catalyst solvent in a reaction vessel, heating the reaction vessel to a temperature of 900? to 2000? C. under a pressure of 4 to 8 GPa, melting at least some of the catalyst solvent, and transforming at least some of the sp2 bonded C.sub.3N.sub.4 into sp3 hybridized C.sub.3N.sub.4. The starting material may include sp2 bonded C.sub.3N.sub.4. The catalyst solvent may be a solid at room temperature. In one example, the catalyst solvent is a carbo-nitride based catalyst solvent including a first compound having the chemical formula A.sub.xB.sub.yN.sub.z and a second compound having the chemical formula D.sub.qE.sub.rC.sub.s. In a second example, the catalyst solvent is a metal alloy based catalyst solvent including a compound having the chemical formula G.sub.xH.sub.y.

Proposed is a method for manufacturing a catalyst for capture and conversion of carbon dioxide capable of removing carbon dioxide and converting carbon dioxide into other useful materials at the same time by capturing and converting carbon dioxide in flue gas generated during fossil fuel combustion into a carbon resource and a catalyst for capture and conversion of carbon dioxide manufactured by the method of the same. The catalyst for capture and conversion of carbon dioxide according to the present disclosure can reduce carbon dioxide by capturing carbon dioxide in flue gas generated during fossil fuel combustion. It is possible to convert the captured carbon dioxide into other useful materials by converting the collected carbon dioxide into sodium carbonate or sodium hydrogen carbonate as carbon resources.

Proposed is a method for manufacturing a catalyst for capture and conversion of carbon dioxide capable of removing carbon dioxide and converting carbon dioxide into other useful materials at the same time by capturing and converting carbon dioxide in flue gas generated during fossil fuel combustion into a carbon resource and a catalyst for capture and conversion of carbon dioxide manufactured by the method of the same. The catalyst for capture and conversion of carbon dioxide according to the present disclosure can reduce carbon dioxide by capturing carbon dioxide in flue gas generated during fossil fuel combustion. It is possible to convert the captured carbon dioxide into other useful materials by converting the collected carbon dioxide into sodium carbonate or sodium hydrogen carbonate as carbon resources.