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adsorption, etc ; carbon dioxide; greenhouses; ion exchange; light; photocatalysis; photocatalysts; China; Show all 8 Subjects
Abstract:
... Photocatalytic CO₂ reduction is an appealing strategy for mitigating the environmental effects of greenhouse gases while simultaneously producing valuable carbon-neutral fuels. Numerous attempts have been made to produce effective and efficient photocatalysts for CO₂ reduction. In contrast, the selection of competitive catalysts continues to be a substantial hindrance and a considerable difficulty ...
adsorption, etc ; aerogels; graphene; graphene oxide; irradiation; light; photocatalysis; photocatalysts; synergism; virulence; wavelengths; China; Show all 12 Subjects
Abstract:
... Efficient and robust photocatalysts for environmental pollutants removal with outstanding stability have great significance. Herein, we report a kind of three dimensional (3D) photocatalyst presented as Z-scheme heterojunction, which combining TiO₂ and ZnₓCd₁₋ₓS with graphene aerogel to contrast TiO₂-ZnₓCd₁₋ₓS graphene aerogel (TSGA, x=0.5) through a moderate hydrothermal process. The as-prepared ...
adsorption, etc ; adsorbents; carbon; carbon dioxide; carbonization; heat; nitrogen content; polyacrylonitrile; porosity; temperature; China; Show all 11 Subjects
Abstract:
... In this report, nitrogen-doped porous carbons were synthesized from polyacrylonitrile fiber by a facile two-step synthesis process i.e. carbonization followed by KOH activation. Activation temperature and KOH/carbon ratio are two parameters to tune the porosity and surface chemical properties of sorbents. The as-obtained sorbents were carefully characterized. Special attention was paid concerning ...
adsorption, etc ; almond shells; anodes; biochar; electric current; electrochemistry; mineralization; oxidation; pH; quinones; wastewater; China; Show all 12 Subjects
Abstract:
... The feasibility of decomplexation removal of typical contaminants in electroplating wastewater, complexed Cu(II) with 1-hydroxyethylidene-1,1-diphosphonic acid (Cu-HEDP), was first performed by a three-dimensional electrode reactor with activated biochar as particle electrodes. For the case of 50 mg/L Cu-HEDP, Cu(II) removal (90.7%) and PO₄³⁻ conversion (34.9%) were achieved under the conditions o ...
adsorption, etc ; dyes; electrocoagulation; electrolysis; heavy metals; industry; methyl orange; nickel; polymers; spectroscopy; wastewater; China; Show all 12 Subjects
Abstract:
... Electrocoagulation (EC) has been widely used to treat the heavy metal wastewater in industry. A novel process of sinusoidal alternating current electrocoagulation (SACC) is adopted to remove Ni²⁺ in wastewater in this study. The morphology of precipitates and the distribution of the main functional iron configurations were investigated. Ferron timed complex spectroscopy can identify the monomeric ...
adsorption, etc ; antibiotics; electrical conductivity; enrofloxacin; hot water treatment; hydrophilicity; new family; photocatalysis; sodium; synergism; temperature; China; Show all 12 Subjects
Abstract:
... MXenes, a new family of two-dimensional transition metal carbides or nitrides, have attracted tremendous attention for various applications due to their unique properties such as good electrical conductivity, hydrophilicity, and ion intercalability. In this work, Ti₃C₂ MXene, or MX, is converted to MX-TiO₂ composites using a simple and rapid microwave hydrothermal treatment in HCl/NaCl mixture sol ...
adsorption, etc ; adsorbents; chromium; ecosystems; formic acid; heavy metals; human health; pH; pollution; porosity; surface area; toxicity; wastewater; water quality; China; Show all 15 Subjects
Abstract:
... Zr-based metal-organic frameworks (MOFs) have been developed in recent years to treat heavy metals, e.g. hexavalent chromium Cr⁶⁺ pollution, which damages the surrounding ecosystem and threaten human health. This kind of MOF is stable and convenient to prepare, but has the disadvantage of low adsorption capacity, limiting its wide application. To this end, a novel formic acid and amino modified MO ...
... In this topical review, we commemorate some of the outstanding contributions of Prof. Peter Kralchevsky in the field of colloid and interface science. In particular, we focus on his achievements on phenomena involving the attachment and detachment of colloidal particles to and from fluid interfaces, giving a personal perspective on how his work has inspired our own research and the activities of a ...
... The surface properties of nanoparticles affect their fate in biological systems. Based on nanotechnology and its methodology, pioneering studies have explored the effects of chemical surface patterns on the behavior of nanoparticles and provided many new insights into nano-bio interfaces. In this review, we would like to provide a summary of how the nanoparticle surface pattern modulates its biolo ...
... In phosphorus (P)-poor tropical forests, soil microorganisms are hypothesized to depend on organic P sources more intensively than in other natural terrestrial ecosystems. I tested this hypothesis by conducting a meta-analysis to compare soil phosphatase activity responses to experimental P fertilization between tropical forests and other natural terrestrial ecosystems. I found that P fertilizatio ...
... Recent developments in the study of the formation of self-assembled surfactant structures and multilayers at the solid-solution interface are presented. It covers a wide range of phenomena, but in this review the main focus is on the surface structures formed from dilute solution in the presence of electrolyte and in more concentrated solutions. Their formation under those conditions are set in th ...
... A mistake of applying pseudo-first-order (PFO) kinetic model in the three papers has been pointed out. Also a correct PFO kinetic equation is given. In addition, a suggestion is made for avoiding using erroneous PFO kinetic equations in adsorption systems. ...
... Due to the low cost, suitable redox potentials and intrinsic safety, non-lithium ion batteries (NLIBs) have attracted considerable attention in the next-generation energy storage systems; nonetheless, searching for efficient anodes is still a great challenge in the development of NLIBs. Herein, we systematically estimated the potential of emerging 2D Si₃C as an anode of NLIBs by means of first-pri ...
... In order to fundamentally suppress the shuttle effect, N₂ Plasma & Al₂O₃ magnetron sputtered separators (Al₂O₃@N-PP) are proposed for lithium-sulfur batteries (LSBs). Such a dual-functional polysulfides (LiPSs) barrier separator greatly inhibits the shuttle effect from the perspective of physical and chemical interaction. Physically, the inherently electronegative amorphous Al₂O₃ first achieves th ...
... Sustainability concerns have motivated and directed a great deal of interest over the past decade towards the development of green technologies. Polysaccharides are green polymers, which experienced growing demand to substitute chemically synthetic polymers. Different types of polysaccharides i.e. cellulose-, starch-, chitin- alginate-, and chitosan-based carbohydrate polymers have been applied in ...
... Ultra-high vacuum (UHV) is essential to many surface characterization techniques and is often applied with the intention of reducing exposure to airborne contaminants. Surface contamination under UHV is not well-understood, however, and introduces uncertainty in surface elemental characterization or hinders surface-sensitive manufacturing approaches. In this work, we investigated the time-dependen ...
adsorption, etc ; 2,4-dichlorophenol; absorption; 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 ...
adsorption, etc ; X-ray diffraction; X-ray photoelectron spectroscopy; catalysts; catalytic activity; dielectric spectroscopy; pH; rhodamines; surface area; transmission electron microscopy; ultrasonics; vibration; China; Show all 13 Subjects
Abstract:
... This paper synthesized a new type of ternary piezoelectric catalyst MoOₓ/ZnS/ZnO (MZZ) by a one-step method. The catalytic degradation of Rhodamine B (RhB) solution (10 μg/g, pH = 7.0) shows that the composite catalyst has excellent piezoelectric catalytic activity under ultrasonic vibration (40 kHz). The piezoelectric degradation rate of the optimal sample reached 0.054 min⁻¹, which was about 2.5 ...
... Using the dispersion-corrected density functional theory (DFT-D3) method, we systematically studied the adsorption of 15 kinds of transition-metal (TM) clusters on pristine graphene (Gr) and N-doped graphene (N-Gr). It has been found that TMₙ (n = 1–4) clusters adsorbed on the N-Gr surface are much stronger than those on the pristine Gr surface, while 3d series clusters present similar geometries ...
adsorption, etc ; catalysts; green chemistry; nicotinamide; Show all 4 Subjects
Abstract:
... H₂-Driven NADH regeneration has long suffered from low selectivity when non-enzymatic, particularly heterogeneous catalysts, are used. In addition to the unselective nature of the catalysts, the typically unmeasured NAD⁺ conversion has inevitably hindered catalyst development. Here we report Sn-doped Pt/SiO₂ catalysts for the selective regeneration of NADH and show that doping Pt/SiO₂ with 10 at% ...