A DLM-1 molecular sieve, a process for preparing the molecular sieve, and use thereof in treating an organic substance are provided. The DLM-1 molecular sieve is an Al-SBA-15 molecular sieve, and has a schematic chemical composition as represented by the formula “first oxide*second oxide”. The first oxide is silica, the second oxide is alumina, and the content by mass percent of alumina in the schematic chemical composition is 2% to 85%. The DLM-1 molecular sieve is suitable for the hydrodenitrogenation reaction of heavy distillate oil, and is favorable for improving the hydrodenitrogenation activity.

Provided is a mercury adsorbent that can efficiently adsorb and remove mercury and/or a mercury compound contained in a liquid hydrocarbon and can suppress corrosive action even when used for a long time. The mercury adsorbent comprises an activated carbon including a mineral acid supported thereon, the activated carbon having a specific surface area of 1000 m.sup.2/g or larger and a volume of micropores of 80 cm.sup.3/g or larger, each of the micropores having a pore radius of 8 Å or smaller, and the mercury adsorbent has a moisture content of from 0.1 to 3 wt %.

The present invention addresses the problem of providing a plasma spraying material with which it is possible to form an HAp film that has high hardness and is not susceptible to abrasion, even under conditions involving plasma spraying with low flame energy. In the present invention, an HAp powder having an average particle diameter (D.sub.50) of 15-40 μm and a pore volume of 0.01-0.30 cc/g at a pore diameter of 2000 nm or less as measured through mercury intrusion makes it possible to form an HAp film that has high hardness, is not susceptible to abrasion, and can be subjected to plasma spraying, even under conditions involving plasma spraying with low flame energy.

An object of the present invention is to provide a calcium phosphate powder that enables the preparation of a slurry for additive manufacturing with excellent dispersion stability, and enables the production of a three-dimensional additive manufacturing article with high strength, in additive manufacturing. Provided is a calcium phosphate powder, having an average particle size (D.sub.50) of 0.1 to 5.0 μm, and having a pore volume of mesopores (pore size: 2 to 50 nm) of 0.01 to 0.06 cc/g as measured by a gas adsorption method. The calcium phosphate powder has excellent dispersion stability in a slurry for additive manufacturing, and, by performing additive manufacturing using a slurry for additive manufacturing containing the calcium phosphate, it is possible to produce a three-dimensional additive manufacturing article with high strength, which is useful as an implant, such as an artificial bone.

Porous amorphous silica can be obtained from siliceous plant matter containing non-siliceous inorganic substances. The siliceous plant matter is soaked in an aqueous solution which includes a chelating agent. The chelating agent is present in an amount which helps to extract at least some of the non-siliceous inorganic matter. The aqueous solution is then separated from the siliceous plant matter. Beneficial properties are imparted to the siliceous plant matter by controlling the amount of at least one preselected non-siliceous inorganic substance in the siliceous plant matter. At the end of the process, the siliceous plant matter is heat treated in the presence of oxygen at a temperature to produce the resulting amorphous silica having the beneficial properties.

A method of making Cu—Ag.sub.3PO.sub.4 nanoparticles is provided. The method includes forming a mixture of at least one silver salt, at least one phosphate salt, and at least one copper (II) salt. The method further includes dissolving the mixture in water. The method further includes sonicating the mixture. The method further includes precipitating the Cu—Ag.sub.3PO.sub.4 nanoparticles or “nanoparticles”. The copper is present in the nanoparticles in an amount of 2 to 23 weight percent (wt.%) based on the total weight of the Cu—Ag.sub.3PO.sub.4. The nanoparticles of the present disclosure find application in treating cervical cancer, and colorectal cancer. The nanoparticles may also be used in photodegrading environmental pollutants.

Composite carbon particles including a porous carbon material and a silicon component, the composite carbon particle having an average aspect ratio of 1.25 or less, and a ratio (I.sub.Si/I.sub.G) of a peak intensity (I.sub.Si) in the vicinity of 470 cm.sup.−1 to a peak intensity (I.sub.G) in the vicinity of 1580 cm.sup.−1 as measured by Raman spectroscopy of 0.30 or less, wherein the porous carbon material satisfies V.sub.1/V.sub.0>0.80 and V.sub.2/V.sub.0<0.10, when a total pore volume at a maximum value of a relative pressure P/P.sub.0 is defined as V.sub.0 and P.sub.0 is a saturated vapor pressure, a cumulative pore volume at a relative pressure P/P.sub.0=0.1 is defined as V.sub.1, a cumulative pore volume at a relative pressure P/P.sub.0=10.sup.−7 is defined as V.sub.2 in a nitrogen adsorption test, and has a BET specific surface area of 800 m.sup.2/g or more.

Proposed is a method for manufacturing a spherical YOF-based powder. Specifically, proposed is a method for manufacturing a spherical YOF-based powder. The YOF-based powder injected into the plasma jet and melted into the refrigerant in a droplet state is sprayed and quenched, thereby improving density and controlling the component ratio through particle spheroidization.

There is provided a spherical organic-inorganic composite particle having good biodegradability. The organic-inorganic composite particle according to the present invention includes 1 to 79% by weight of a silica component and 21 to 99% by weight of a biodegradable plastic. The organic-inorganic composite particle has an average particle diameter d.sub.1 of 0.5 to 25 μm, a true density of 1.03 to 2.00 g/cm.sup.3, and a sphericity of 0.80 or more. A cosmetic product including the organic-inorganic composite particle having such properties has excellent texture properties.

A method of producing a porous carbon is provided that can change type of functional groups, amount of functional groups, or ratio of functional groups while inhibiting its pore structure from changing. A method of producing a porous carbon includes: a first step of carbonizing a material containing a carbon source and a template source, to prepare a carbonized product; and a second step of immersing the carbonized product into a template removing solution, to remove a template from the carbonized product, and the method is characterized by changing at least two or more of the following conditions: type of the material, ratio of the carbon source and the template source, size of the template, and type of the template removal solution, to thereby control type, amount, or ratio of functional groups that are present in the porous carbon.