The invention is directed to utilization of a series of cross-linked 1,4-benzenediamine-co-alkyldiamine polymers and the use of the polymers to remove mercury from a hydrocarbon in fluid form.

The invention is directed to utilization of a series of cross-linked 1,4-benzenediamine-co-alkyldiamine polymers and the use of the polymers to remove mercury from a hydrocarbon in fluid form.

This invention relates to modified MOF materials, methods of preparing them and processes using them. A modified MOF of the invention is modified by impregnating a MOF with an inorganic metal salt. The starting MOF contains at least one linker or ligand which contains an aryl amino group as part of its structure. These modified MOFs are able to adsorb either basic or acidic toxic industrial compounds (TIC). The modified MOFs can be used to remove TICs from various gaseous streams such as air.

A water filtration apparatus and a method of using thereof, wherein the water filtration apparatus includes a nanoparticle layer which comprises polypeptide-functionalized nanoparticles that are capable of absorbing heavy metals selected from the group consisting of Pb.sup.2+, As.sup.5+, Cd.sup.2+, Hg.sup.2+, Cr.sup.6+, Cu.sup.2+, and Zn.sup.2+, as well as organic materials. Various embodiments of the water filtration apparatus, the method of using the apparatus, and a method of producing the polypeptide-functionalized nanoparticles are also provided.

The invention is directed to utilization of a series of cross-linked 1,4-benzenediamine-co-alkyldiamine polymers and the use of the polymers to remove mercury from a hydrocarbon in fluid form.

The present invention relates to sulfur based polymers and a process of making sulfur based polymers. The invention also relates to sorbents comprising the sulfur-based polymers. The invention also relates to the use of such polymers and sorbents in metal remediation or extraction. The invention also relates to methods of removing heavy metals from fluids.

A water absorbing material contains paper powder obtained by separating gypsum from a gypsum board as its raw material. The weight ratio of the gypsum adhering to the paper powder with respect to the paper powder is 5% or less.

A water filtration apparatus and a method of using thereof, wherein the water filtration apparatus includes a nanoparticle layer which comprises polypeptide-functionalized nanoparticles that are capable of absorbing heavy metals selected from the group consisting of Pb.sup.2+, As.sup.5+, Cd.sup.2+, Hg.sup.2+, Cr.sup.6+, Cu.sup.2+, and Zn.sup.2+, as well as organic materials. Various embodiments of the water filtration apparatus, the method of using the apparatus, and a method of producing the polypeptide-functionalized nanoparticles are also provided.

The biosynthesized magnetic metal nanoparticles for oil spill remediation are magnetic nanoparticles capped with an extract of Anthemis pseudocotula. The magnetic nanoparticles are formed by co-precipitation of ferric chloride hexahydrate and ferrous chloride tetrahydrate in an ethanol solution of the extract with the dropwise addition of ammonium hydroxide to raise the pH to between 8 and 11. The extract may be an extract of the aerial parts of Anthemis pseudocotula in a low polar extraction solvent, such as an n-alkane solvent or mono-di-, or trichloromethane. The extract is hydrophobic, improving dispersion of the magnetic nanoparticles in oil spills in seawater, resulting in 90% removal of oil for a 1:10 ratio of nanoparticles:oil by weight.

Provided as an absorbent article capable of, in a state of having a crease, preventing the occurrence of liquid running along the crease is an absorbent article including a liquid-permeable top sheet, an absorbent body containing a water-absorbing resin, the water-absorbing resin being a particulate poly(meth)acrylic acid (salt)-based water-absorbing resin and having the following physical property values (1) to (3), and a liquid-impermeable back sheet in this order, wherein a basis weight of the water-absorbing resin is 300 g/m.sup.2 to 1000 g/m.sup.2, (1) a vertical liquid diffusion length (D) is 15 mm or more; (2) a ratio (L/D) of a horizontal liquid diffusion length (L) to the vertical liquid diffusion length is 0.5 to 1.5; and (3) a bulk density defined in EDANA ERT 460.2-02 is 0.68 g/mL or more.