Sodium silicate is widely used as a coagulation accelerator for oil-well cement. However, the existing experimental results show that the addition of sodium silicate can significantly delay the setting of cement paste with retarder. This study investigated the effects of addition of sodium silic...

This work investigated the synergistic impact of silicate- and MgO-reactivity on the performance of Mg-silicate-based cement. Ceramic waste (CW) and glass waste (GW) as two silicate sources were used. Different decarbonation temperatures (800 and 1200 °C) were applied on magnesium carbonate to ...

In this study, mesoporous CuFe/silicate catalysts were obtained from a simultaneously mixing the NaOH and metal-ion solution to sodium silicate solution and a hydrothermal treatment under alkaline condition without using any organic template. During hydrothermally reaction, the amorphous metal-s...

Thermal conductivities of alkali–silicate (R2O–SiO2 (R = Li, Na, K)) and calcium–alkali–silicate (CaO–R2O–SiO2 (R = Li, Na, K)) melts were evaluated by combining their thermal effusivities measured using the front-heating front-detection laser flash method with their density and specific h...

Silicate clinker was used to modify flue gas desulfurization (FGD) gypsum. Then the effects of the amount and particle size of silicate clinker on the mechanical properties, softening coefficient and water absorption of modified FGD gypsum materials were studied. The results show that adding a p...

This paper aims at a comparison of the stability and catalytic performance of niobium- and titanium-containing mesoporous silicates prepared by evaporation-induced self-assembly (EISA) in selective oxidations with hydrogen peroxide. The catalysts comprised evenly dispersed dimeric and/or small o...

Relative stability between manganese hydroxide (H2O)2(OH)4Mn(IV)OH (1) and manganese oxo (H2O)3(OH)3Mn(IV)O (2) species were investigated by coupled cluster (CC) SD and SD(T), DMRG CASCI, CASSCF, CASPT2 and CASDFT methods. The DMRG CASCI and DMRG CASSCF based on thirteen active orbitals and thir...

Iron hydroxide/manganese dioxide doped straw activated carbon was synthesized for As(III) adsorption. The Fe-Mn-SAc adsorbent has two advantages, on the one hand, the straw active carbon has a large surface area (1360.99 m2 g−1) for FeOOH and MnO2 deposition, on the other hand, the manganese dio...

A three-dimensional (3D) hierarchically MXene-derived carbon/nickel‑manganese layered double hydroxide nanosheets composite (MDC/NiMn-LDH) is constructed by a facile in situ growth route. Such unique 3D structure could provide fast and short pathway for electron and ion transfer, but also suffic...

In this work, amorphous nickel–cobalt–manganese hydroxide (NiCoMn–OH) was hydrothermally synthesized using a mixed solvent strategy and used as positive electrode materials for supercapacitor-battery hybrid energy storage system. The experimental results show that the mixed solvent is indispe...

Constructing high specific area and porous micro-nano frameworks is suitable for fast electrons/ions transport, which motivates us to design hollow polyhedra with multi-order structure. However, the synthesis route of hollow polyhedra is still restricted due largely to the complexity and high co...

Lanthanum-doped titanium-zirconium-molybdenum (La-TZM) alloy with high strength and high toughness was prepared by powder metallurgy and rolling process. The influence of OH− concentrations (5%, 7% and 10%) on the electrochemical behaviors of La-TZM alloys was investigated by potentiodynamic pol...

The present work focuses on the fabrication of Lead Zirconium Titanate (PZT) thin film based multifunctional energy harvester for power generation using mechanical vibrations and magnetic energy. To realize the harvesters, single phase PZT thin films are deposited using pulsed laser deposition (...

This research describes the possibility of ultra-high dose deep titanium ion implantation for surface modification of zirconium alloy Zr-1Nb. The developed method based on repetitively pulsed high intensity low energy titanium ion implantation was used to modify the surface layer. The DC vacuum ...

The 1.0 wt% La - doped molybdenum - 0.6 wt% titanium - 0.11 wt% zirconium (La-TZM) alloy has a maximum tensile strength of 1350 MPa and elongation to failure of 7.5%, at room temperature. In this paper, the fracture behavior of this La-TZM alloy was studied. The La2Ti2O7 phase produces micro-cra...

A host-guest based colorant was synthesized by intercalating indigo molecules into the nanochannels of zeolite L (ZL). Reductive washing thereby ensured the efficient and selective removal of non-intercalated indigo molecules. The UV-vis diffuse reflectance spectrum of the product after intercal...

Zinc layered hydroxide salt was intercalated with indigo carmine (IC) anions, transforming a soluble dye into an insoluble pigment. The obtained material was characterized by X ray powder diffraction, where a basal distance of 19.07 Å was obtained. DFT simulation showed that the groups of the in...

A novel high-efficiency method based on microwave irradiation roasting has been proposed to extract valuable metals from minerals. In this study, we employed microwave irradiation and conventional roasting for extracting vanadium and chromium from high‑chromium vanadium slag (HCVS) with the addi...

In this study, a new and efficient analytical method was developed to determine hexavalent chromium, Cr (VI), in water by flame atomic absorption spectrometry (FAAS). This method consists on the simultaneous selective extraction and preconcentration of Cr (VI) in water by dispersive solid phase ...

Waste water pollution containing heavy metal ions has raised wide concern in environmental sustainability, calling for the development of high-efficiency and low-cost materials for waste water treating. Herein, a series of carbon fiber/Co-Al layered double hydroxide/zeolitic imidazolate framewor...