Efficient photocatalysts are crucial for degrading antibiotic pollutants in water and vital environmental remediation. In this study, an efficient carbon quantum dot (CQD)-modified BiOBr/Bi2WO6 hybrid material was prepared by a mild hydrothermal method. Meanwhile, visible-light-driven micromotor based on the photocatalyst developed. The can achieve self-propelled motion powered photocatalytic degradation reaction. It exhibited remarkable activity toward common water, such as sulfonamide,...

Transition metal carbon/nitride (MXene) holds immense potential as an innovative electrocatalyst for enhancing the overall water splitting properties. Nevertheless, re-stacking nature induced by van der Waals force remains a significant challenge. In this work, lattice tensile-strained porous V2C-MXene (named TS(24)-P(50)-V2C) is successfully constructed via rapid spray freezing method and following hydrothermal treatment. Besides, influence of strain degree microscopic pores on catalytic...

In this paper, we have synthesized the two-dimensional (2D) MXene layers and acid activated carbon (AAC) into a 3D conductive network structure, which could prevent serious aggregation of 2D layers. Two-dimensional furnishes new perspective possibility to assemble flexible electrodes without any current collector, binders, or additives when applied energy storage devices. architecture, AAC particles are enclosed by flakes enlarge interlamellar spacing considerably improve electrochemical...

Two-dimensional Ti3C2Tx flakes have been studied as nanofillers in anticorrosive coatings, but their poor dispersion and interfacial interaction coatings limit application. In this study, we report silanized Ti3C2Tx/carbon nanotube (CNT) nanocomposite a shielding layer for waterborne polyurethane (WPU) which makes the WPU enhanced anticorrosion properties. [3-(2-Aminoethylamino)-propyl] trimethoxysilane (AEAPTMS) is used to make surface electropositive, sodium dodecylbenzene sulfonate...

Cells orchestrate the motion and force of hundreds protein motors to perform various mechanical tasks over multiple length scales. However, engineering active biomimetic materials from that consume energy propel continuous micrometer-sized assembling systems remains challenging. Here, we report rotary biomolecular motor-powered supramolecular (RBMS) colloidal are hierarchically assembled a purified chromatophore membrane containing FOF1-ATP synthase molecular motors, an polyelectrolyte...

Abstract The restacking and oxidizable nature of vanadium‐based carbon/nitride (V 2 C‐MXene) poses a significant challenge. Herein, tellurium (Te)‐doped V C/V O 3 electrocatalyst is constructed via mild H oxidation calcination treatments. Especially, this work rationally exploits the inherent easy characteristic associated with MXene to alter interfacial information, thereby obtaining stable self‐generated heterointerfaces. Meanwhile, microetching effect creates numerous pores address...

A new technique of filling friction stir welding (FFSW) relying on a semiconsumable joining tool has been developed to repair the keyhole left at end (FSW) seam. The conventional non-consumable FSW was transformed, and consisting alloy steel shoulder aluminium bit designed create solid state joint. Using combined plastic deformation flow consumable wall keyhole, FFSW process is able with both metallurgical mechanical bonding characteristics, seam can be achieved without or other defects....

We report a carbonaceous nanomotor with characteristic flask-like hollow structure that can autonomously move under the propulsion of oxygen bubbles. The nanoflask (CNF) motor was fabricated by encapsulating platinum nanoparticles (Pt NPs) into cavity CNF. internally encapsulated Pt NPs act as catalysts to decompose hydrogen peroxide (H2O2) fuel generated bubbles recoil motion CNF motors. Besides, velocity motors be controlled adjusting concentration H2O2 solution. increases increase...

Schematic of the process for growth MXene/NiCo₂S₄hybrid.

For the energy supply of smart and portable equipment, high performance supercapacitor electrode materials are drawing more concerns. Conductive Ni-MOF is a class with higher conductivity compared traditional MOFs, but it continues to lack stability. Specifically, MXene (Ti

Abstract Unraveling the fundamental mechanisms of sodium ion adsorption behavior is crucial for guiding design electrode materials and enhancing performance capacitive deionization systems. Herein, optimization systematically investigated through robust d–d orbital interactions within zinc‐doped iron carbide, facilitated by a novel liquid nitrogen quenching treatment. Liquid treatment can enhance coordination number, strengthen interactions, promote electron transfer, shift d‐band center Fe...

Cardiac tissue engineering holds great promise for the treatment of myocardial infarction. However, insufficient cell migration into scaffolds used and inflammatory reactions due to scaffold biodegradation remain as issues be addressed. Engineered heart (EHT) grafts fabricated by means a encapsulation technique provide cells with tissue-like environment, thereby potentially enhancing cellular processes such migration, proliferation, differentiation, regeneration. This paper presents study on...

In the present work, 7·8 mm thick AA 2219 rolled plates were successfully joined without keyholes using semiconsumable tools by filling friction stir welding (FFSW). The shoulder further effect was performed to enhance mechanical stir, and properties enhanced effectively. results showed that bonding interface of bit keyhole is defect free. softened region on advanced side weakest part FFSW joint rather than keyhole. average ultimate tensile strength elongation are 172 MPa 11·2%, equal 90 82%...

Optical chirp chain Brillouin optical time-domain analysis (OCC-BOTDA) has the capabilities of fast measurement, high threshold, and freedom from nonlocal effect; at same time, however, it also problems introduced by transient stimulated scattering. The influence interaction is reflected as broadened asymmetric spectrum, ghost peak, frequency shift main peak. This introduces difficulty in computing fiber with good measurement accuracy. Besides, OCC modulation causes additional noise due to...

In the recent years, two-dimensional (2D) metal carbide and nitride (MXenes) materials have shown characteristics of promising electrocatalytic properties for hydrogen evolution reaction (HER). Here, by using density functional theory calculations, etching exfoliating Cr2AlC to Cr2CO2 (for HER) with without carbon defect were studied. Results show that pristine HF solutions could intend generate Cr2C MXenes O* termination, is, Cr2CO2, Cr2CF2 Cr2C(OH)2 will translate into even if they...