Described herein are facile, one-step initiated plasma enhanced chemical vapor deposition (iPECVD) methods of synthesizing hyper-thin (e.g., sub-100 nm) and flexible metal organic covalent network (MOCN) layers. As an example, the MOCN may be made from zinc tetraphenylporphyrin (ZnTPP) building units. When deposited on a membrane support, the MOCN layers demonstrate gas separation exceeding the upper bounds for multiple gas pairs while reducing the flux as compared to the support alone.

A water treatment apparatus includes a membrane in a contact with a soil structure, a hollow elongated member being passed through membrane and being mounted vertically within a vertical well with the bottom end of the elongated member being configured to expel treated water into the soil structure, a filtration member mounted stationary or for a linear reciprocal movement so as to filter the water prior to entry into a hollow interior of the elongated member, a trash rack positioned on the membrane and surrounding an upper portion of the elongated member and a barrier positioned adjacent and/or on said peripheral side wall of said trash rack, said barrier configured to reduce flow of the water and/or absorb a portion of the contaminant(s) prior to the water entering said filtration member.

A polymer having a contact angle with water that is greater than or equal to 90? and a contact angle with 1,3-propane diol that is less than 90?. A pervaporation membrane comprising the polymer and a process for purifying a fermentation broth using a pervaporation membrane comprising the polymer is also described.

The present invention relates to a film comprising graphene oxide (GO) and clay, an electronic device comprising the film, a packaging material coated with the film, and a preparation method thereof.

Disclosed is a composite membrane including a polymeric membrane having an H.sub.2 permeability of 500 Barrer or more at 25 degrees C., and a coating layer deposited on the polymer membrane by oxidative polymerization.

Provided are a ceramic separation membrane structure improved in separation performance with no reduction in permeability, and a method for producing the structure. The ceramic separation membrane structure includes a ceramic porous body, a zeolite separation membrane disposed on the ceramic porous body, and a repair portion made of a repairing material of organic-inorganic hybrid silica. The organic-inorganic hybrid silica is a combination of an organic component and a silicon-containing inorganic component.

The organic-inorganic composite of the present invention includes an organic compound having a carbonyl group, an inorganic compound containing a metal component, and a silver component. The ratio of the number of metal atoms in the inorganic compound to the number of carbon atoms in the organic compound is from 0.04 to 1.60, and the ratio of the number of silver atoms in the silver component to the number of carbon atoms in the organic compound is from 0.07 to 0.55. The organic-inorganic composite may include, for example, an inorganic compound having a metal matrix structure containing a metal M and oxygen, an organic compound having a carbonyl group, and silver ions. The carbonyl group is bonded to a side chain R.sup.1 of the organic compound and has an end group R.sup.2.

The organic-inorganic composite of the present invention includes an organic compound having a carbonyl group, an inorganic compound containing a metal component, and a silver component. The ratio of the number of metal atoms in the inorganic compound to the number of carbon atoms in the organic compound is from 0.04 to 1.60, and the ratio of the number of silver atoms in the silver component to the number of carbon atoms in the organic compound is from 0.07 to 0.55. The organic-inorganic composite may include, for example, an inorganic compound having a metal matrix structure containing a metal M and oxygen, an organic compound having a carbonyl group, and silver ions. The carbonyl group is bonded to a side chain R.sup.1 of the organic compound and has an end group R.sup.2.

A separating material superior to conventional separating materials, and a separation method are provided, with which 1,3-butadiene is selectively separated and recovered from a mixed gas including 1,3-butadiene and C4 hydrocarbons other than 1,3-butadiene. A metal complex, which comprises a dicarboxylic acid compound (I) (see (I) below) represented by general formula (I), an ion of a metal such as beryllium, and a bipyridyl compound (II) represented by general formula (II), namely L-Z-L (II) (see (L) below), is characterized by including, as the dicarboxylic acid compound (I), at least two different dicarboxylic acid compounds (I). The metal complex is used as a 1,3-butadiene separating material. Formula (I) L is represented by any of the compounds below. Formula (L).

Disclosed herein is an in-situ process for the preparation of Metallic Organic Framework's (MOF's)polymer composites at room temperature, without requirement of pre-seeding o MOF's or substrate modification. Further, the invention provides MOF-polymer composites membranes, wherein MOF forms a layer substantially covering the porosity of the membrane.