Two complementary design strategies, isomorphous ligand replacement and heterocycle doping, have been applied to iteratively enhance the proton conductivity of a metal–organic framework, β-PCMOF2. The resulting materials, PCMOF21/2(Pz) PCMOF21/2(Tz) (Pz = 1H-pyrazole, Tz 1H-1,2,4-triazole), their conduction raised almost 2 orders magnitude compared bulk conductivities these materials are over 10–1 S cm–1 at 85 °C 90% relative humidity (RH), while maintaining parent MOF structure. A solid...

Photocatalytic CO2 reduction has been known to be one of the most potential technologies for sustaining development human society. However, rapid recombination photoexcited charges in semiconductors often gets way photocatalytic reaction and annoyingly suppresses performance. Here, amine-modified step-scheme (S-scheme) porous graphite carbon nitride (g-C3N4)/CdSe–diethylenetriamine (A-PCN/CdSe–DETA) was fabricated via a simple one-step microwave hydrothermal method. The presence amine...

Rational design of Pt single-atom catalysts provides a promising strategy to significantly improve the electrocatalytic activity for hydrogen evolution reaction. In this work, we presented novel and efficient utilizing low electron-density region substrate effectively trap confine high metal atoms. The catalyst supported by nickel selenide with rich vacancies was prepared via hydrothermal-impregnation stepwise approach. Through experimental testation DFT theoretical calculation, confirm that...

Cyrene, a green bioderived solvent from waste cellulose, was applied into the synthesis of metal–organic frameworks (MOFs). The MOF, HKUST-1, exhibited an even better Brunauer–Emmett–Teller surface area than HKUST-1 synthesized with DMF. Four additional archetypal MOFs were also to verify universal application Cyrene in MOF manufacturing. However, BET areas lower DMF-made MOFs. It observed that aldol-condensation product two molecules addition trapped within pores are responsible for...

We developed a new dansyl phthalimide-based fluorescent chemosensor for hydrazine detection. Upon Gabriel type-based hydrazinolysis of phthalimide (DPI) in the presence mixture HEPES buffer (pH 7.0, 20 mM) and DMSO (1/9, v/v) at room temperature, produces dansyl-NH2 with maximum emission wavelength changed from 475 nm to 512 along color change yellow colorless, allowing colorimetric detection by naked eye. DPI can selectively detect over other environmentally abundant ions. Moreover, coated...

Four new phosphonate MOFs were prepared with cationic dimethylbipiperdinium units: [La2(H2L)1.5(AcO)2Br·3.25H2O], α-PCMOF-21-Br; [La2(H2L)1.5(AcO)Cl2·5.25H2O], α-PCMOF-21-Cl; [La(H2L) (AcO)Br0.5·4.93H2O(HBr)1.11], β-PCMOF-21-Br; and (AcO)0.5Cl·5.42H2O(HCl)1.79], β-PCMOF-21-Cl. All frameworks have the same La network structure but differ in secondary anions (acetate, bromide, chloride), both coordinated free. showed ability to dehydrate reversibly. Different phases result from very subtle...

Cognitive impairments following post-stroke significantly hinder neurological recovery and exacerbate patient morbidity, underscoring urgent need for effective therapeutic strategies. Vortioxetine (VTX), a prominent Selective Serotonin Reuptake Inhibitor (SSRI), boasts notable antidepressant, cognition-enhancing, anti-inflammatory properties. This investigation delves into VTX’s influence on motor skills, spatial learning-memory capabilities, depressive behaviors in Middle Cerebral Artery...

The development of metal-organic frameworks (MOFs) for heavy metals removal from water faces ongoing challenge related to balancing performance with cost-effective synthesis. In this work, we report the first application Calgary Framework 20 (CALF-20), a zinc-based MOF synthesized via low-cost method, efficient adsorption Cu(II) and Pb(II) ions aqueous solutions. Synthesized at room temperature using commercially available, inexpensive reagents green solvents, CALF-20 represents highly...

A lanthanum(iii) metal-organic framework, PCMOF21-AcO [La2(H2L)1.5(AcO)3·(H2O)5.59], with a 3-D network linked by dicationic bis(dimethylphosphonato)bipiperidinium units and both coordinated free acetate counter anions is reported. was water stable showed very good proton conductivity >10-3 S cm-1 at 85 °C 95% relative humidity. also bimodal particle size distribution so further examined as function of size. Large (≥220 μm), intermediate (125 ≤x < 180 μm) small (<38 particles were sieved...

The aim of this research was to estimate the adsorption performance water-insoluble starch sulfate (SS) for cationic dyes. Toluidine blue (TB), as a model dye, used prepare an adsorbate solution. effects time, initial TB concentration, temperature, and pH on by SS were studied, kinetics equilibrium process investigated using nonlinear analysis method. results showed that can effectively remove from aqueous kinetic data correlate well with pseudofirst-order model. Langmuir, Freundlich, Toth,...

Abstract Rational design of Pt single‐atom catalysts provides a promising strategy to significantly improve the electrocatalytic activity for hydrogen evolution reaction. In this work, we presented novel and efficient utilizing low electron‐density region substrate effectively trap confine high metal atoms. The catalyst supported by nickel selenide with rich vacancies was prepared via hydrothermal‐impregnation stepwise approach. Through experimental testation DFT theoretical calculation,...

Zr-containing SBA-15 zeolite (Zr-SBA-15) catalysts show good catalytic performance toward xylose conversion to methyl lactate (ML). Here, we report our study on the mechanisms for of β-xylopyranose and methanol ML, glycolaldehyde, water (1) over modeled −(SiO)3Zr(OH) ([Zr-1]) −(SiO)2Zr(OH)2 ([Zr-2]) active sites Zr-SBA-15. The gross reaction mainly involves two kinds stages, that is, aldose–ketose or ketose–aldose tautomerization retro-aldol condensation reaction. For (1), rate-determining...

A highly crystalline one-dimensional zirconium phosphate, (NH4)2[ZrF(PO4)(HPO4)] (ZrP-3), was facilely synthesized by the ionothermal method. The robust structure and rich hydrogen-bonded network make ZrP-3 an excellent proton conductor having a conductivity higher than 10-2 S cm-1 at 90 °C 95% RH. remarkable stability makes promising solid electrolyte material for exchange membrane fuel cells.

A two-phase hollow fiber liquid-phase microextraction (HF-LPME) pretreatment technique was developed for simultaneously screening multiple β-blockers.

g-C3N4/Ag-ZnO (CAZ) composite photocatalysts were synthesized successfully by the hydrothermal method. The photocatalytic performance of was assessed through experiments measuring both hydrogen (H2) production and degradation methylene blue (MB). H2 rate 60% CAZ reached 2.450 mmol·g–1·h–1, which 8.5 times that g-C3N4. 25% degraded 99.14% MB dye within 40 min, its constant 12.4 have good synergistic properties in exhibit better performance. A Z-scheme system mechanism has been proposed for...

We introduce a novel procedure to synthesize CO2 adsorbent from waste printed circuit boards. This innovative technique enables the production of nitrogen-rich porous carbon adsorbents at low activation temperatures, ranging 400 500°C, compared traditional processes that require temperatures exceeding 600°C when using KOH. By fine-tuning temperature and modifying proportion reactants, namely, NaNH2, nonmetallic fractions, it is possible customize both pore architecture nitrogen levels in...

Noble metal Pt catalyst has been identified as excellent electrocatalysts for the ammonia oxidation reaction (AOR). However, Pt’s scarcity, expensiveness, and toxicity hinder its large-scale commercial application. Herein, we report a facile surfactant-free electrochemical synthesis method production of PtIr nanocubes. The nanocubes were in situ synthesized on carbon paper, no organic additives used at any stage catalyst. formation was attributed to synergy electro-adsorption/desorption...

A highly sensitive ultra-high-performance liquid chromatographic–tandem mass spectrometry (UPLC/MS/MS) method was developed for the quantification of synthetic peptide drug exenatide in monkey plasma. Sample preparation carried out by solid-phase extraction (SPE), and bivalirudin used as internal standard (IS). An excellent chromatographic separation obtained on a reversed-phase C18 column with gradient elution. Detection utilized Qtrap 5500 system operated positive ion mode multiple...

UiO-66 and a muconic acid functionalized derivative of (UiO-66-MA) were synthesized via the solvothermal method to determine if could undergo cheletropic reaction in presence sulfur dioxide inside metal-organic framework (MOF). Both MOFs exposed constant flow dioxide, UiO-66-MA was observed take up three times more than unfunctionalized UiO-66. Despite improved uptake UiO-66-MA, NMR IR data indicate that no chemical change occurred indicating did not occur. We thus propose increased...