Non-noble metal g-C3N4/Ni(OH)2 photocatalyst was successfully synthesized by a wet-chemical method. The morphology, structure and photocatalytic hydrogen evolution of g-C3N4/Ni(OH)2 were researched. The experiments showed that the best photocatalytic hydrogen evolution of g-C3N4/Ni(OH)2 was 21 μmolg-1h-1, which was about 105 folds than that of pure g-C3N4. And that the apparent quantum efficiency (AQE)

The single crystal of CaBi2B2O7 was obtained by recrystallization in solid-state and studied by single-crystal X-ray diffraction. Its crystal structure was refined in the centrosymmetric orthorhombic space group Pnma with a = 8.5556(8) Å, b = 5.1569(5) Å, c = 9.6677(7) Å, Z = 4. The structure is based upon parallel (010) {CaBi2B2O7}∞ layers from BO3 triangles, ψ-tetrahedral BiO3 groups, and CaO6 triangular

Two isomorphic 3D MOFs [Cd(2-bpeb)(sdba)] (1) and [Zn(2-bpeb)(sdba)] derived from the π-conjugated pro-ligand 2-(4-((E)-2-(pyridine-2-yl)vinyl)styryl)pyridine (2-bpeb) and 4,4’-sulfonyldibenzoate (H2sdba) were synthesized and characterized. Complexes 1 and 2 exhibit striking fluorescence properties and can function as chemical sensors via rapid luminescence quenching in the presence of Fe3+and Cr2O72-

A series of eight rare-earth substituted antimony tungstates with the formulae [((RE)4(H2O)6Sb6O4)(SbW10O37)2(SbW8O31)2]22- [(RE)III = Y(1), Gd(2), Tb(3), Dy(4), Ho(5), Er(6), Tm(7), Yb(8)] has been synthesized under ambient conditions. The compounds were isolated using rare-earth salts and Na9[B-α-SbW9O33]•19.5 H2O as precursors along with sodium dihydrogen phosphate in 1 M NaCl solution. The addition

High performance electrode materials have always been the key of supercapacitor research. Herein, we have prepared a kind of Ni(OH)2/g-C3N4/RGO nanosheet composite with petal-like structure, which was prepared by a simple hydrothermal method. The growth of Ni(OH)2 based on g-C3N4/RGO nanosheets owning to a more loose structure between the layers, which provided a sufficient electron transfer region

Propagation of a H2-added strained laminar CH4/air flame in a rich-to-lean stratified mixture is numerically studied. The back-support effect, which is known to enhance the consumption speed of a flame propagating into a leaner mixture compared to that into a homogeneous mixture, is evaluated. A new method is devised to characterize unsteady reactant-to-reactant counterflow flames under transiently

The soot formation processes in three different turbulent prevaporized non-premixed toluene jet flames stabilized on a jet-in-hot-coflow (JHC) burner were investigated in this study. The jet Reynolds number and the stoichiometric mixture fraction were varied in order to manipulate the flow time scales and the chemistry, respectively. Time-resolved laser-induced incandescence (TiRe-LII), non-linear

The Eulerian Stochastic Fields (ESF) Monte Carlo method to solve the transported PDF (TPDF) equation is extended to account for differential diffusion effects by incorporating species individual molecular diffusivities. The method has been applied in Large Eddy simulation (LES) to non-piloted oxy-fuel jet flames at different Reynolds numbers experimentally investigated by Sevault et al. [1]. Due to

The single or co-combustion experiments of high-Ca pyrolyzed biochar and high-Si coal were carried out on a drop tube furnace (DTF) at 1300 °C under air and oxyfuel (CO2:O2=50:50, oxy50) conditions. The produced PM10 (of an aerodynamic diameter of 10 µm or less) was analyzed to investigate the interactions during co-combustion. Due to the characteristics of the selected samples (low S and Cl), the

Elucidating the chemical evolution of various functional groups in polycyclic aromatic hydrocarbons (PAH) and soot aids in understanding soot formation chemistry. In this work, the chemical evolution of various functional groups, including aromatic CH, aliphatic CH, C=O, COH and COC bonds, was experimentally investigated online, rather than with offline diagnostics. Oxidation was performed in a jet-stirred

We present recent results toward the quantification of spray characteristics at engine conditions for an eight-hole counter-bored (stepped) GDI injector – Spray G in the ECN denomination. This computational study is characterized by two novel features: the detailed description of a real injector's internal surfaces via tomographic reconstruction; and a general equation of state that represents the

A sparse-Lagrangian particle implementation of the multiple mapping conditioning / large-eddy simulation (MMC-LES) model for two-phase flows is developed with the aid of carrier-phase direct numerical simulation (CP-DNS) of a droplet-laden temporally evolving reacting double shear layer. In sparse-Lagrangian MMC for spray combustion, the liquid fuel droplets are represented by a first set of Lagrangian

An improved version of the Lagrangian multiple mapping conditioning model coupled with large eddy simulation (MMC-LES) is applied to compute the structure of a range of turbulent mixed-mode flames stabilised on the Sydney piloted burner with compositionally inhomogeneous inlet. The calculations are compared with detailed measurements. While premixed MMC-LES models are yet to be developed, the most

The use of transported probability density function (TPDF) models to predict soot has the strong advantage that the effects of turbulent fluctuations on soot source terms can be rigorously accounted for. However, soot processes are closely coupled to gas-phase composition. Among the open issues for gas-phase micro-mixing is the species-dependence of mixing timescales. The objective is to carry out

The present study investigates experimentally flame lengths in the two directions underneath a horizontal ceiling (x-direction: parallel to the longer side of the burner; y-direction: perpendicular to the longer side of the burner) produced by line-source fire. It is noted that the previous classical equations are limited for axi-symmetrical sources where only one-dimensional radial flame length is

In this study, an expansive ultra-high performance concrete (UHPC) was prepared by combining use of lightweight aggregate (LWA) and CaO-expansive agent (EA) for concrete-filled steel tube applications. The coupled effects of LWA and EA on the volume stability, mechanical properties and microstructure of UHPC were systematically evaluated. The expansive stress of the outer wall of UHPC-filled steel

In order to improve the durability of concrete structures, silicate-based impregnant have been used, but the chemical interaction mechanism is not clear. Silicate-based impregnant react with calcium hydroxide, which is formed during the process of cement hydration, and form compounds similar to a calcium silicate hydrate (C–S–H). This paper performs reaction experiments by Ca/Si ratio, and solid state

The use of ordinary Portland cement (PC) as the principal binder in concrete brings with it significant environmental challenges through the consumption of fossil fuels and emission of carbon dioxide (CO2) during cement production. Concrete specimens made with an alkali activated cementitious material (AACM) produced from an alternative binder and conventional Portland cement concrete were exposed

Conventional treatment modes like chemotherapy, thermal and radiations aimed at cancerous cells eradication are marked by destruction pointing the employment of nanomaterials as sustainable and auspicious materials for saving human lives. Cancer has been deemed as the second leading cause of death on a global scale. Nanomaterials employment in cancer treatment is based on the utilization of their inherent

The complexity of boron species in aqueous solution becomes the bottleneck in development of boron resources from brine. The concentrations of different boron species and transformation mechanism among boron species are mainly affected with the total boron concentration, temperatures, pH of the solution, and cations in the solution. The change trends for concentration of total boron in the complicated

We report a series of redox-active bis(pincer) Pd(II) complexes in which the redox active units are based on either a diarylamido or a carbazolide framework. Compounds 1 and 2 contain two full diarylamido/bis(pincer) PNP units connected either via an Ar-O-Ar linker (1) or an Ar-Ar bond (2). Compound 3 is a fused bis(pincer) where the two PNP units share an aromatic ring. Compound 4 is built around

One 8-hydroxyquinolinate-based metal-organic framework [Zn(L)]•2MeOH•H2O (1) was first synthesized by treating a novel 8-hydroxyquinolinate ligand H2L involving two carboxylate groups with zinc salt. Based on a single-crystal X-ray analysis, the Zn-MOF exhibits a porous framework assembled from interlinked nanotubes that are constructed from three 43 helices. Complex 1 possesses excellent stability

The exploration of novel electrochemical energy conversion and storage devices has been extensively studied in recent decades for their specific advantages. Therefore, the design of highly efficient, stable, and noble‐metal‐free electrocatalysts for oxygen-related reactions (OER) is critical but challenging, which is still worth improving. Herein, a facile and controllable synthesis strategy for bimetallic

An original approach never tackled so far allowed correlating the basicity and hydrophilic character of clay catalysts with surface interaction with 17α-Ethinylestradiol (EE2) during ozonation in water. The clay catalysts were found to behave specifically according to their silica/alumina ratio like soils in natural oxidative processes. Acid-activated bentonites (HMt) and ion-exchanged montmorillonite

This perspective presents design, synthesis and crystal structures of a large number of architectures constructed using assorted metalloligands of pyridine-2,6-dicarboxamide based ligands. The metalloligands offered various appended functional groups whereas design strategies included varying both their position and number. A combination of these parameters resulted in the development of assorted architectures

A set of three new Ru(II) polypyridyl complexes decorated with 5-aryl tetrazolato ligands (R-CN4)-, (D series, namely D1, D3 and D4), is presented herein. Whereas complex D1 represents the pyrazinyl tetrazolato analogue of a previously reported Ru(II) complex (D2) with general formula cis-[(dcbpy)2Ru(N^N)]+, in which dcbpy is 2,2'-bipyridine-4,4'-dicarboxylic acid and N^N is the chelating 2-pyridyl

Al(III) complexes are extensively studied as [18F]fluoride carriers in positron emission tomography. However, our limited knowledge on their thermodynamic and kinetic properties has hindered efforts to easily prepare radiochemically pure compounds while simultaneously reducing the overall labeling time. Thus, to improve our understanding of fluoride binding to coordinatively unsaturated Al(III) complexes

Pyridinyl- and phosphano-guanidino complexes of formula [(η6-p-cymene)OsCl(H2L)][SbF6] (cymene = MeC6H4iPr; H2L = N,N’-bis(p-Tolyl)-N’’-(2-pyridinylmethyl)guanidine, H2L1 (1) and N,N’-bis(p-Tolyl)-N’’-(2-diphenylphosphanoethyl)guanidine, H2L2 (2)) have been prepared from the dimer [{(η6-p-cymene)OsCl}2(μ-Cl)2] and H2L in the presence of NaSbF6. Treatment of complex 2 with HCl renders the phosphano-guanidinium

Density Functional Theory-based methods have been exploited to look into the structural, vibrational and electronic properties of antenna ligands, all of them crucial points for a reliable design of customized luminescent lanthanide (Ln3+) complexes. X-ray structures, UV-Vis absorption spectra and triplet (T1) energies of three novel β-diketone ligands with a thienyl group and naphthyl (L1), phenanthryl

Nickel oxide (NiOx) as a hole transport layer has been vastly investigated in perovskite solar cells (PSCs) due to the nature of p-type doping, high transparent materials, and deep-lying valence band. In this paper, a new phase based on trivalent Ni2O3 is synthesized by the solution-processed low temperature of mixed nickel (acetate/nitrate). In comparison, high-temperature solution-processed divalent