Described are boron oxide-containing adsorbents that include porous adsorbent base and boron oxide on surfaces of the base, as well as devices that include the boron oxide-containing adsorbent, and related methods of preparing and using the boron oxide-containing adsorbent.

Provided herein are methods, systems, and devices incorporating use of materials to store, ship, and deliver process gases to micro-electronics fabrication processes and other critical process applications.

Process for purifying bis(2-hydroxyethyl)terephthalate (BHET) obtained from depolymerization of a polyethylene terephthalate (PET) waste, the process comprising: treating said solution with at least one oxidizing agent at a temperature of from 30° C. to 100° C., preferably from 50° C. to 90° C., to obtain an oxidized solution; treating the oxidized solution with at least one adsorbing agent to obtain a purified oxidized solution; separating the at least one adsorbing agent from the purified oxidized solution to obtain a purified BHET solution. This process is particularly effective for eliminating organic dyes and other low molecular weight organic contaminants, so as to achieve a high purity degree of the recovered BHET.

An NO.sub.2 detection device includes a substrate; a drain formed on the substrate; a source formed on the substrate; a p-type polymer semiconductor layer formed on the substrate, between the drain and the source; and an n-type metal-organic framework layer located over the p-type polymer semiconductor layer. The n-type metal-organic framework layer has apertures having a size larger than a size of the NO.sub.2 molecules so that the NO.sub.2 molecules pass through the n-type metal-organic framework layer to arrive at the p-type polymer semiconductor layer to increase an electrical current.

The present invention relates to a metal-organic framework (MOF) having a three-dimensional porous structure and being represented by the chemical formula of [Al.sub.8(OH).sub.a(BTC).sub.b(IPA).sub.c(L).sub.d], a preparation method therefor, and a use thereof as an adsorbent and a catalyst.

A method and reactor are disclosed for separating and removing heavy metals from wastewater using a sulfhydryl-modified nano-magnetized activated carbon. The method includes the steps of preparing a sulfhydryl-modified nano-magnetized activated carbon first; introducing heavy-metal-containing wastewater into a reactor which is equipped with a stirrer and keeping stirring, and then adding the sulfhydryl-modified nano-magnetized activated carbon, continuously stirring for a reaction; after reacting for a period, precipitating under a magnetic field generated by a magnet separator, discharging the resulting supernate, and then discharging the precipitated sludge.

The present invention relates to a method and apparatus for providing and/or receiving audible sound. In particular, the invention relates to apparatus, such as a micro speaker, which includes an active region which comprises an adsorbent element in the form of a self-supporting monolith-like element with a porous reticulated structure. The adsorbent element includes adsorbent material which comprises microporous organic polymer (MOP) material. The apparatus of the present invention is suitable for use in an electronic device, for example a mobile or portable electronic device, to provide improved audible sound.

Disclosed herein are carbon molecular sieves and methods of making the same through the pyrolysis of a polymer precursor in the presence of a reactive gas stream including a hydrogen source.

The present invention relates to a super-absorbent polymer having excellent properties, both centrifugal retention capacity (CRC) and absorption under pressure (AUP) having been improved by introducing a surface crosslinked layer crosslinked by surface-modified inorganic particles, and to a method for preparing the same. The super-absorbent polymer comprises: a base resin powder containing a crosslinked polymer of water-soluble ethylene-based unsaturated monomers having an at least partially neutralized acidic group; and a surface crosslinked layer formed on the base resin powder, wherein inorganic particles may be chemically bound to the crosslinked polymer contained in the surface crosslinked layer, via an oxygen-containing bond or a nitrogen-containing bond.

The invention relates to a method for the production of activated carbon, in particular particulate activated carbon, having an increased mesopore and/or macropore volume fraction, preferably having an increased mesopore volume fraction.