A method for preparing a metal-free few-layer phosphorous nanomaterial. The method comprises an ice-assisted exfoliation process (or solvent ice-assisted exfoliation process). The method allows for the preparation of a few-layer phosphorous nanomaterial with improved yield and reduced duration and exfoliation power. The few-layer phosphorous nanomaterial is used in the preparation of a photocatalyst. The photocatalyst exhibits a long-term stability, high photocatalytic H.sub.2 evolution efficiency from water, and good stability under visible light irradiation.

The subject of the invention is the development of a new process for producing phosphorus P4 from phosphoric acid. In this process, the phosphoric acid and a hydrophilic source of carbon and of hydrogen (biomass, kerogen, “STEP” purification plant sludge, organic polymer) are mixed, and the mixture is treated at a temperature of 80 to 150° C. in order to ensure grafting of the phosphates on the carbon backbone. The production of the phosphorus P4 is carried out by heat treatment of the precursor at a temperature at which phosphorus is produced. The temperature range is from 550° C. to 950° C. This process can be carried out at temperatures below those of conventional phosphorus production without the occurrence of the production of solid by-products normally formed in conventional phosphorus production. The process can be used to produce phosphoric acid for food or medical use.

Provided is a method of forming black phosphorus (BP) with a high purity and a high electrical conductivity. The method includes the steps of performing a milling process and a sintering process on red phosphorus (RP) and adding tin (Sn) while performing a milling process and a sintering process on red phosphorus (RP).

Provided is a method of forming black phosphorus (BP) with a high purity and a high electrical conductivity. The method includes the steps of performing a milling process and a sintering process on red phosphorus (RP) and adding tin (Sn) while performing a milling process and a sintering process on red phosphorus (RP).

Disclosed is a method of obtaining an inorganic nanostructured complex (CFI-1) by chemical synthesis and antitumor use. The main use is in treating cancer, both in animals and humans. The complex has singular antitumor activity, and can potentially be used as a substitute and/or act as an adjuvant for other commercial antineoplastic drugs.

Disclosed is a method of obtaining an inorganic nanostructured complex (CFI-1) by chemical synthesis and antitumor use. The main use is in treating cancer, both in animals and humans. The complex has singular antitumor activity, and can potentially be used as a substitute and/or act as an adjuvant for other commercial antineoplastic drugs.

Disclosed is a method of obtaining a protein-associated nanostructured complex (MRB-CFI-1) by chemical synthesis and antitumor use. The main use is in treating cancer, both in animals and humans. The complex has singular antitumor activity, and can potentially be used as a substitute and/or act as an adjuvant for other commercial antineoplastic drugs.

Disclosed is a method of obtaining a protein-associated nanostructured complex (MRB-CFI-1) by chemical synthesis and antitumor use. The main use is in treating cancer, both in animals and humans. The complex has singular antitumor activity, and can potentially be used as a substitute and/or act as an adjuvant for other commercial antineoplastic drugs.

Disclosed is a method for treating cancer in a subject by administering to the subject a compound selected from NH.sub.4MgPO.sub.4×6H.sub.2O, (NH.sub.4)2MgH.sub.2(PO.sub.4).sub.2×4H.sub.2O, (NH.sub.4)2Mg.sub.3(HPO.sub.4).sub.4×8H.sub.2O and NH.sub.4MgPO.sub.4×H.sub.2O associated or not to hydrolytic enzymes, which are known to have immunomodulatory activities.

Disclosed is a method for treating cancer in a subject by administering to the subject a compound selected from NH.sub.4MgPO.sub.4×6H.sub.2O, (NH.sub.4)2MgH.sub.2(PO.sub.4).sub.2×4H.sub.2O, (NH.sub.4)2Mg.sub.3(HPO.sub.4).sub.4×8H.sub.2O and NH.sub.4MgPO.sub.4×H.sub.2O associated or not to hydrolytic enzymes, which are known to have immunomodulatory activities.