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absorption, etc ; Fourier transform infrared spectroscopy; adsorption; glyphosate; human health; pH; photocatalysts; photolysis; toxicity; China; Show all 10 Subjects
Abstract:
... With increasing concerns on the environment and human health, the degradation of glyphosate through the formation of less toxic intermediates is of great importance. Among the developed methods for the degradation of glyphosate, photodegradation is a clean and efficient strategy. In this work, we report a new photocatalyst by doping F ion on BiVO₄ that can efficiently degrade glyphosate and reduce ...
Dapeng Li; Can Wu; Si Zhang; Yali Lei; Shaojun Lv; Wei Du; Shijie Liu; Fan Zhang; Xiaodi Liu; Lang Liu; Jingjing Meng; Yuesi Wang; Jian Gao; Gehui Wang
absorption, etc ; acidity; aerosols; biomass; carbon; clean energy; coal; combustion; dust; heat; pH; pollution; seasonal variation; water solubility; winter; China; Show all 16 Subjects
Abstract:
... To understand the characteristics of atmospheric brown carbon (BrC), daily PM₂.₅ samples in Xingtai, a small city in North China Plain (NCP), during the four seasons of 2018-2019, were collected and analyzed for optical properties and chemical compositions. The light absorption at 365 nm (absλ₌₃₆₅ ₙₘ) displayed a strong seasonal variation with the highest value in winter (29.0±14.3 M/m), which was ...
absorption, etc ; cadmium; heavy metals; hydroponics; mass spectrometry; pollutants; pollution; rice; root growth; root tips; stele; tetracycline; tillering; toxicity; transportation; China; Show all 16 Subjects
Abstract:
... Co-exposure to heavy metal and antibiotic pollution might result in complexation and synergistic interactions, affecting rice growth and further exacerbating pollutant enrichment. Therefore, our study sought to clarify the influence of different Tetracycline (TC) and Cadmium(Cd) concentration ratios (both alone and combined) on rice growth, pollutant accumulation, and transportation during the til ...
absorption, etc ; air; chocolate; color; cookies; cream; hardness; image analysis; near-infrared spectroscopy; shelf life; storage time; water activity; water content; Show all 13 Subjects
Abstract:
... Wafer cookies combine two or more layers of wafer sheets with intermediate layers of cream filling and later coating with chocolate. During storage, wafer cookie quality, especially in terms of mechanical properties, is mainly affected by moisture migration from the cream or chocolate and moisture absorption from air. This study aimed to assess the storage of wafer cookies by destructive (water ac ...
absorption, etc ; electron paramagnetic resonance spectroscopy; irradiation; pH; photocatalysis; photocatalysts; photoluminescence; photolysis; pollution control; synergism; tetracycline; transmission electron microscopy; ultraviolet-visible spectroscopy; wastewater; China; Show all 15 Subjects
Abstract:
... Photocatalytic degradation was considered as a best strategy for the removal of antibiotic drug pollutants from wastewater. The photocatalyst of ABC (Ag₂CO₃/BiOBr/CdS) composite synthesized by hydrothermal and precipitation method. The ABC composite used to investigate the degradation activity of tetracycline (TC) under visible light irradiation. The physicochemical characterization methods (e.g. ...
absorption, etc ; 2,4-dichlorophenol; adsorption; density functional theory; energy; hot water treatment; light; nanospheres; photocatalysis; photocatalysts; surface area; tetracycline; texture; wastewater; water treatment; China; Show all 16 Subjects
Abstract:
... High-efficiency photocatalysts are of great significance for the application of photocatalytic technology in water treatment. In this study, N/Cu co-doped ZnS nanosphere photocatalyst (N/Cu-ZnS) is synthesized by a hydrothermal method for the first time. After doping, the texture of nanosphere becomes loose, the nanometer diameter is reduced, making the specific surface area of catalyst increased ...
absorption, etc ; acid orange 7; biochar; ciprofloxacin; energy efficiency; hot water treatment; irradiation; methyl orange; photocatalysis; photocatalysts; pollution; probability; rhodamines; solar energy; sulfur; tetracycline; China; Show all 17 Subjects
Abstract:
... Removing large concentrations of organic pollutants from water efficiently and quickly under visible light is essential to developing photocatalytic technology and improving solar energy efficiency. This study used a simple hydrothermal method to prepare a non-metallic, S-doped NaTaO₃ (S-NTO) photocatalyst, which was then loaded onto biochar (BC) to form a S-NTO/BC composite photocatalyst. After u ...
... To protect the wellbeing of research animals, certain non-invasive measures are in increasing need to facilitate an early diagnosis of health and toxicity. In this study, feces specimen was collected from adult zebrafish to profile the metabolome fingerprint. Variability in fecal metabolite composition was also distinguished as a result of aging, perfluorobutanesulfonate (PFBS) toxicant, and fecal ...
X-ray absorption spectroscopy; absorption, etc ; X-ray diffraction; electrodes; fluorine; Show all 5 Subjects
Abstract:
... In pursuit of high-capacity Mn-based oxides as positive electrode materials for lithium-ion batteries, the changes in the charge–discharge curve due to the spinel transition still stand in the way of the cycling stability. We found in this study that Li₁.₁₂Mn₀.₇₄O₁.₆₀F₀.₄₀ (LMOF05) positive electrodes with a loose-crystalline rock salt structure (LCRS), in which F is placed near Mn, show a stable ...
absorption; atomic absorption spectrometry, etc ; chemometrics; cluster analysis; food composition; hydrides; markets; selenium; Show all 8 Subjects
Abstract:
... This study presents the determination of elemental profiling of representative dietary herbal supplements which were purchased on the Croatian market in the forms of capsules, powders, jams or liquids. Using inductively coupled plasma mass spectrometry (ICP-MS), twenty-four elements in eighty-seven different samples were determined. Electrothermal atomic absorption with hydride generation techniqu ...
X-ray absorption spectroscopy; absorption, etc ; X-radiation; antimony; photosynthesis; phytotoxicity; pollutants; pollution; Show all 8 Subjects
Abstract:
... Antimony (Sb) is a toxic metalloid that has been listed as a priority pollutant. The environmental impacts of Sb have recently attracted attention, but its phytotoxicity and biological transformation remain poorly understood. In this study, Sb speciation and transformation in plant roots was quantified by Sb K-edge X-ray absorption spectroscopy. In addition, the phytotoxicity of antimonate (Sbⱽ) o ...
absorption; intestinal absorption, etc ; bioavailability; enterocytes; humans; migratory behavior; permeability; small intestine; solubility; Show all 9 Subjects
Abstract:
... Micro- and nano-scale particulate formulations are widely investigated towards improving the oral bioavailability of both biologics and drugs with low solubility and/or low intestinal permeability. Particulate formulations harnessing physiological intestinal transport pathways have recently yielded remarkably high oral bioavailabilities, illustrating the need for better understanding the specific ...
X-ray absorption spectroscopy; absorption, etc ; X-radiation; adsorption; ligands; models; nitrogen; thermodynamics; Show all 8 Subjects
Abstract:
... The local structural changes associated with the ZIF-8 framework flexibility upon nitrogen gas adsorption have been studied by in situ X-ray absorption spectroscopy (XAS) and high-energy-resolution fluorescence-detected X-ray absorption near-edge structure (HERFD-XANES) spectroscopy. Different thermodynamic conditions (isobar and isotherm) have been used to explore the so-called “gate opening” tra ...
... Conventional semiconductors, e.g., Si and GaAs with tetrahedral coordination (four-fold) structures, possess good stability but relatively low optical absorption compared with halide perovskites with octahedral coordination (six-fold) structures, which exhibit superior optical absorption but relatively poor stability. It is thus desirable to combine the complementary properties of four-fold and si ...
... This study clarified the mechanisms of the temperature-dependent oxygen absorption/release properties and appearance of the intermediate phase for κ-Ce₂Zr₂O₈, which is known to have a high oxygen storage/release capacity (OSC). First-principle computations revealed that the vacancy formation energies depend on the number of vacancies and can be categorized into two groups: low-energy and high-ener ...
... Compared with monolithic materials, topologically interlocked materials (TIMs) exhibit higher toughness based on their enhanced crack deflection and deformation tolerance. Importantly, by reducing the block size of TIMs, their structural strength can also be improved due to the reduced flexural span. However, the assembly of microscale blocks remains a huge challenge due to the inadequacy of nanos ...
... Efficiency droop at high carrier-injection regimes is a matter of concern in InGaN/GaN quantum-confined heterostructure-based light-emitting diodes (LEDs). Processes such as Shockley–Reed–Hall and Auger recombinations, electron–hole wavefunction separation from polarization charges, carrier leakage, and current crowding are identified as the primary contributors to efficiency droop. Auger recombin ...
... 3,6-Carbazole precursors were used to prepare an octaphyrin. The conformation and electronic structure of the system could be modulated through trifluoroacetate (TFA) protonation and BF₂ complexation. The resulting nonaromatic macrocyclic complexes, 2-2TFA and 2-2BF₂, displayed noteworthy photophysical properties. For instance, the diprotonated species 2-2TFA showed a strong panchromic absorption ...
... Efficient and stable electromagnetic-wave (EMW) absorption materials have attracted great attention in the field of reducing microwave pollution. Herein, FeCoNiCuTiₓ high-entropy alloys (HEAs) as electromagnetic-wave absorbing materials were prepared by a high-energy ball-milling method. The as-milled HEA powders presented a flaky shape with a high aspect ratio. Impedance matching was efficiently ...
... Low-cost multicomponent alloyed one-dimensional (1D) semiconductors exhibit broadband absorption from the ultraviolet to the near-infrared regime, which has attracted a great deal of interest in high-performance flexible optoelectronic devices. Here, we report the facile one-step fabrication of high-performance broadband rigid and flexible photodevices based on multicomponent alloyed 1D cadmium–su ...