Provided are a method for preparing an adsorbent from industrial vermiculite, an adsorbent and application thereof. The method comprises steps: flaking and de-polluting the raw industrial vermiculite ore to obtain industrial vermiculite fine flakes; grinding the industrial vermiculite fine flakes to obtain industrial vermiculite powder; mixing the industrial vermiculite powder with a binder and granulating it to obtain an industrial vermiculite granular; and post-treating the industrial vermiculite granular to obtain the adsorbent. The adsorbent is prepared by the method. Applications may include purification of benzene gases such as toluene, sewage treatment, horticulture, soil improvement and applications in agricultural carriers. The adsorbent of the disclosure has the advantages of high cation exchange capacity, large internal specific surface area, strong adsorption of toluene and lightweight porous, etc. Moreover, the preparation method of the disclosure is simple, green, low production cost and easy to be produced on a large scale.

A method of making a porous material is provided. The method includes: preparing a mixture including a sugar, a polymer, and at least one soluble metal source, in water; heating the mixture to obtain a gelled material; thermally curing the gelled material to obtain a cured material; and annealing at least a part of the cured material to obtain a porous material that includes metal nanoparticles, where the metal nanoparticles include at least one metal from the at least one soluble metal source. The porous material can include: sheets of multilayer graphene layers; metal nanoparticles dispersed among the sheets and encapsulated by layers of graphene; and macropores, mesopores or micropores, or any combination thereof, throughout the porous material and on its surface. Methods of using the porous material to separate contaminants from water are also provided.

A method for removing hydrogen sulfide (H.sub.2S) from a H.sub.2S-containing gas composition, including charging an aqueous media to a reactor under continuous agitation, dispersing particles of a composite in the aqueous media to form a composite mixture, continuously agitating the composite mixture, introducing the H.sub.2S-containing gas composition to the reactor containing the composite mixture under continuous agitation and passing the H.sub.2S-containing gas composition through the composite mixture, and adsorbing and removing H.sub.2S from the gas composition by the composite mixture to form a purified gas composition. The composite contains a CuMnAl layered triple hydroxide (LTH) and zeolitic imidazolate framework-67 (ZIF-67) nanoparticles. The ZIF-67 nanoparticles are dispersed between layers of the CuMnAl LTH.

Disclosed in the present invention are a magnetic aluminum-based adsorbent and a preparation method therefor. The preparation method comprises the following steps: mixing a carbon black slag powder, porous aluminum oxide and a polar solution, calcining same, then mixing the magnetic powder with a cross-linking agent, then injecting same into a forming mold for treatment and formation, then stripping same, and activating same, so as to obtain the magnetic aluminum-based adsorbent. The magnetic aluminum-based adsorbent prepared by the preparation method has a relatively high adsorption property and can adsorb low-concentration metal ions in wastewater generated by wet recovery of waste batteries well.

The present invention generally relates to a process for making a metal oxide composition for use in removing contaminants from streams. A process of the present disclosure comprises contacting a metal salt with an aqueous solvent to form a metal salt mixture and reacting the metal salt mixture and a metal powder without the addition of heat. The present invention also relates to a process for making a coated metal oxide substrate.

The present disclosure relates to a process for the purification of water. The process includes leading water laden with microorganisms and arsenic through an arsenic adsorption media followed by treating the resultant arsenic deficient water with a disinfectant releasing system to obtain water deficient of arsenic and viable microorganisms. The present disclosure also provides an apparatus for the purification of water using the afore-stated process.

The invention relates to the field of cleaning the environment, and more particularly to a sorbent material for collecting petroleum and petroleum products, and to a method of producing the same. The method includes saturating a basalt fiber canvas with a hydrophobizing liquid and subsequently drying the same, wherein the basalt fibers of the canvas have a diameter of 0.2-2 microns and a density not exceeding 20-25 kg/m.sup.3; prior to saturation, the canvas is first fluffed using compressed air until a density of 12-15 kg/m.sup.3 is reached; the saturation using a hydrophobizing liquid is performed by introducing the hydrophobizing liquid into the pre-fluffed basalt fibers of the canvas in the form of aerosol particles via compressed air; and the subsequent drying of the saturated canvas is performed using compressed air, preferably at a temperature of 65 C.-75 C. The technical effect of invention is a simplified method with a broader field of application. The material manufactured in accordance with this method is characterized in that the volume of hydrophobizing additive is selected in order to achieve a density of the finished material which is in the range of 10-70 kg/m.sup.3, or in the range of 10-15 kg/m.sup.3, in the range of 30-70 kg/m.sup.3. This improves the sorbent characteristics of the material.

A silica-passivated article is disclosed, including a fluidic path, a fluidic path surface facing the fluidic path, and a conformal coating disposed on a passivated portion of the fluidic path surface between the fluidic path surface and the fluidic path such that the fluidic path is maintained remote from the passivated portion of the fluidic path surface across the conformal coating. The conformal coating is a silica-based coating, includes carbon-based moieties each covalently bound to singular silicon atoms of the silica-based coating, is substantially free of carbon-based moieties each covalently bound to more than one silicon atom of the silica-based coating, and is substantially free of layers of bulk silicon. The passivated portion of the fluidic path surface constitutes at least 67% of the fluidic path surface by surface area. A method for forming the silica-passivated article is disclosed including applying silsesquioxane to the fluidic path and curing.

The present disclosure is directed to stationary phase materials for performing size exclusion chromatography. Embodiments of the present disclosure feature hydroxy-terminated polyethylene glycol surface modified silica particle stationary phase materials, which are optionally also methoxy-terminated polyethylene glycol surface modified.

A polymer/activated carbon composite made up of a branched polyethylenimine and magnetic cores involving Fe.sub.3O.sub.4 disposed activated carbon. The magnetic cores have activated carbonyl groups on the surface. A process for removing organic dyes, such as methyl red, as well as heavy metal ions from a polluted aqueous solution or an industrial wastewater utilizing the composite is introduced. A method of synthesizing the polymer/activated carbon composites is also specified.