One-pot synthesis of NiCo-phyllosilicate supported on zeolite for enhanced degradation of antibiotic contaminants.

The overuse of antibiotics currently results in the presence of various antibiotics being detected in water bodies, which poses potential risks to human health and the environment. Therefore, it is highly significant to remove antibiotics from water. In this study, we developed novel rod-like NiCo-phyllosilicate hybrid catalysts on calcined natural zeolite (NiCo@C-zeolite) via a facile one-pot process.

Subnano-Fe (Co, Ni) clusters anchored on halloysite nanotubes: an efficient Fenton-like catalyst for the degradation of tetracycline.

Iron-based catalysts are environmentally friendly, and iron minerals are abundant in the earth's crust, with great potential advantages for PMS-based advanced oxidation process applications. However, homogeneous Fe/PMS systems suffer from side reactions and are challenging to reuse. Therefore, developing catalysts with improved stability and activity is a long-term goal for practical Fe-based catalyst applications.

The characteristics and resource utilization of chromium-containing electroplating sludge.

Chromium (Cr)-containing electroplating sludge is a hazardous solid waste and has a detrimental effect on human health and the environment. The existing mainstream methods still have problems such as high costs and complicated processes. In this study, the composition, phase composition, heavy metal content, microstructure, calcination characteristics, and vitrification of chromium electroplating sludge were analyzed by XRF, XRD, ICP-OES, and SEM.

Construction of CoO anchored on BiMoO microspheres for highly efficient photocatalytic peroxymonosulfate activation towards degradation of norfloxacin.

Dissolved antibiotics have been a research subject due to their widespread presence and potential threats in drinking water treatment. To enhance the photocatalytic activity of BiMoO for the degradation of norfloxacin (NOR), the heterostructured CoO/BiMoO (CoBM) composites were synthesized by employing ZIF-67-derived CoO on BiMoO microspheres. The as-synthesized resultant material 3-CoBM by 300 °C calcination was characterized by XRD, SEM, XPS, transient photocurrent techniques, and EIS.

A Survey on Deep Learning Event Extraction: Approaches and Applications.

Event extraction (EE) is a crucial research task for promptly apprehending event information from massive textual data. With the rapid development of deep learning, EE based on deep learning technology has become a research hotspot. Numerous methods, datasets, and evaluation metrics have been proposed in the literature, raising the need for a comprehensive and updated survey.

Recycling of municipal sewage sludge incineration fly ash based on (NH) SO roasting-acid leaching and filling PP matrix process.

Sludge incineration is one of the most efficient sludge treatment methods. The fly ash produced by incineration must be handled further since it has a significant number of heavy metals. In this study, the chemical composition of sewage sludge incineration fly ash (SSA) generated from Zhejiang in various months was identified by XRD, X-ray fluorescence spectrometer (XRF), and SEM analyzes.

Efficient degradation of antibiotics over Co(II)-doped BiMoO nanohybrid via the synergy of peroxymonosulfate activation and photocatalytic reaction under visible irradiation.

Developing efficient photocatalysts based on the peroxymonosulfate (PMS) activation for effective degradation of threatening antibiotic contamination under visible light is still a challenging subject. Herein, a Co-doped BiMoO (CBMO) spherical crystals were synthesized via a facile hydrothermal method and used to degrade artificial antibiotic wastewater via PMS activation under visible light. The obtained 3 wt% Co-doped BMoO (3CBMO) can effectively remove 98.

Surface modification of phosphogypsum and application in polyolefin composites.

Phosphogypsum (PG) is one of solid wastes with large amount of yield and serious pollution, which has attracted wide attention. The aim of this study is to investigate filling performance of PG on polypropylene (PP) or high-density polyethylene (HDPE) matrix. In this work, PG was calcined initially to improve whiteness and fix impurities.

Crystallinity and photocatalytic properties of BiVO/halloysite nanotubes hybrid catalysts for sunlight-driven decomposition of dyes from aqueous solution.

The BiVO/HNTs hybrid photocatalysts were synthesized by liquid phase precipitation using natural halloysite nanotubes (HNTs) as supporter and Bi(NO)·5HO as resource of Bi. XRD, scanning electron microscopy (SEM), transmission electron microscopy, HRTEM, x-ray photo electron spectroscopy and UV-Vis DRS were used to characterize the samples prepared at different calcination temperatures, and the effects of crystallization, Brunauer-Emmett-Teller specific surface area and morphological structure on the photoactivity were investigated. Results reveal that increasing calcination temperature can accelerate the transition of BiVO from tetragonal to monoclinic and also decrease the surface area of BiVO/HNTs.

Construction of ZnFeO/rGO composites as selective magnetically recyclable photocatalysts under visible light irradiation.

This paper reports on highly active ZnFeO/reduced graphene oxide (ZnFeO/rGO) nanocomposites synthesized by a modified sol-gel method. The as-prepared samples have been characterized by XRD, TEM, XPS and other detection methods, which demonstrate that ZnFeO nanoparticles (NPs) with a diameter of 15 ∼ 50 nm were densely grown on the rGO substrates. The photocatalytic activities of ZnFeO/rGO catalysts were evaluated by the degradation of Methylene blue (MB) under visible light.

Effect of calcination on structure and photocatalytic property of N-TiO/g-CN@diatomite hybrid photocatalyst for improving reduction of Cr(Ⅵ).

The N-TiO/g-CN@diatomite (NTCD) composite has been prepared through a simple impregnation method, using titanium tetrachloride as precursor and urea as nitrogen-carbon source. Then the effects of calcination temperature on structure, surface property and photocatalytic activity of the catalysts were investigated. And XRD, TEM, XPS, FTIR and UV-vis diffuse adsorption spectroscopy were used to characterize the obtained powders.

Dry grinding effect on pyrophyllite-quartz natural mixture and its influence on the structural alternation of pyrophyllite.

Infrared spectroscopy (IR), scanning electron microscopy (SEM), X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HRTEM) with energy dispersive X-ray analysis (EDS) were used to investigate the evolution of mechanical destruction of the pyrophyllite structure and final ground products upon grinding with a laboratory planetary ball mill. The raw ore used in this present work was mainly composed of pyrophyllite and quartz. This pyrophyllite was more resistant toward mechanical destruction, and the crystalline order of pyrophyllite was not completely destroyed until grinding for 240 min with a 20:1 of weight ratio of the balls to powder.

Utilization of coal fly ash in the glass-ceramic production.

Manufacturing the glass-ceramic has been proposed as a useful choice to recycle coal fly ash from power plants. In this work, a glass-ceramic of SiO2-Al2O3-Fe2O3-CaO family was synthesized by mixing 90 wt% of coal fly ash, from a power plant in west of China, with Na2O, and then melted at 1350 degrees C. The ceramization of the obtained glass was carried out at 770 degrees C for 2h.

Fading behavior of X-ray induced color centers in soda-lime silicate glass.

The X-ray induced color centers in soda-lime silicate glass were unstable at room temperature. There was a rapid fading at short-term stage and a slow fading at long-term stage. In the short-term stage, both first-order and second-order fading kinetics played roles in the fading process, while only the first-order fading controlled the long-term stage fading.

X-ray irradiation on the soda-lime container glass.

X-ray irradiation induced defects in the commercial soda-lime container glass were studied by means of optical spectrophotometer and ESR. The induced color might be applied to producing recyclable glasses. The nonbridging oxygen hole centers (NBOHCs) were mainly responsible for the irradiation induced absorptions at 431 and 627 nm of glass.