MgIn₂S₄/UiO-66-NH₂ MOF-Based Heterostructure: Visible-Light-Responsive Z-Scheme-Mediated Synergistically Enhanced Photocatalytic Performance toward Hydrogen and Oxygen Evolution

Langmuir, Journal Year: 2023, Volume and Issue: 39(21), P. 7294 - 7306

Published: May 15, 2023

Hydrogen and oxygen evolution via photocatalytic water splitting remains the quintessential alternative to fossil fuels. Photocatalysts must be sufficiently robust, competent, productive toward harnessing sunlight in order utilize solar spectrum for maximal output. Herein, we have fabricated MgIn2S4/UiO-66-NH2 composite a facile solvothermal route determined its efficacy light-induced H2 O2 generation reactions through with aid of different sacrificial agents. Initially, formation pristine materials was ascertained by PXRD, FTIR, etc. Moreover, sophisticated morphological characterization techniques (FESEM HRTEM), intricate interaction between MgIn2S4 UiO-66-NH2 revealed. Additionally, XPS studies suggested effective individual components binding energy shifting suggesting transfer electrons from Zr-MOF MgIn2S4. The PL electrochemical aspects supported photogenerated charge segregation prepared leading superior outputs. Amidst composites (3, 5, 7 wt %) MgIn2S4/UiO-66-NH2, 5 % or UM-2 displays optimal performances 493.8 258.6 μmol h-1 (4-fold greater than UiO-66-NH2), respectively. nanocomposite's enhanced performance is indeed consequence coadjuvant among that transpires Z-scheme-mediated enabling exciton channelization. inherited remarkable framework stability parent Zr-MOF, insertion had negligible impact on integrity. This work will offer valuable model developing robust Zr-MOF-based nanocomposite photocatalysts evaluating their redox reactions.

Language: Английский

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Synthesis of Bi-Metallic-Sulphides/MOF-5@graphene Oxide Nanocomposites for the Removal of Hazardous Moxifloxacin

Catalysts, Journal Year: 2023, Volume and Issue: 13(6), P. 984 - 984

Published: June 8, 2023

The development of new and advanced materials for various environmental energy applications is a prerequisite the future. In this research, removal hazardous moxifloxacin (MOX) accomplished by synthesizing hybrids MOF-5 i.e., Ni/Mo.S2/MOF-5/GO, Ni.S2/MOF-5/GO, Mo.S2/MOF-5/GO, Ni/Mo.S2/MOF-5 nanocomposites using metal-organic framework (MOF-5) graphene oxide (GO) as precursor. introduction NixMoxS2 facilitates unique interfacial charge transfer at heterojunction, demonstrating significant improvement in separation effectiveness photochemical electron-hole pairs. To evaluate equilibrium adsorption capacity, time, pH, concentration organic pollutants were used experimental parameters. kinetics data reveals pseudo-first-order (R2 = 0.965) when Ni/Mo.S2/MOF-5/GO photocatalyst was irradiated under light 90 min against MOX degradation. This led to narrow band gap (2.06 eV compared 2.30 Ni/Mo.S2/MOF-5), well excellent photocatalytic activity photodegradation (MOX), listed order: (95%) > Ni.S2/MOF-5/GO (93%) Mo.S2/MOF5/GO (90%) (86%) concentrations up 2.0 mgL−1, caused production superoxide (O2•−) hydroxide (OH•) radicals, which encouraged effective activities heterostructure. After five successive tests its mechanical stability, impressive recyclability results revealed only tiny variation efficiency from 95% (for first three runs) 93% (in fourth run) 90% fifth run). These findings show that heterostructure an heterojunction quick elimination aqueous media.

Language: Английский

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Pore-engineered nanoarchitectonics for cancer therapy

NPG Asia Materials, Journal Year: 2023, Volume and Issue: 15(1)

Published: March 31, 2023

Abstract Nanoarchitectonics describes the integration of nanotechnology with other fields as a postnanotechnology concept that elevates it to material science. Based on this fundamental principle, we address pore-engineered nanoarchitectonics application targets for cancer therapy by combining basic descriptions and exemplifying applications in review. The initial two sections briefly summarize basics according classification based (i) porosity (ii) composition. Afterward, main application-oriented section—designing mesoporous therapy—is presented. Various types drug delivery systems, including nanoparticles nanocarriers, endogenous stimuli-responsive delivery, exogenous targeted are described. Importantly, clinical translation materials is further discussed. Mesoporous unique offer network cavities vehicles nanocarriers. Regarding developments allow be broadly used settings, there several challenges should solved their application. From perspective, tremendous processes development materials.

Language: Английский

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Advancements in adsorption and photodegradation technologies for Rhodamine B dye wastewater treatment: fundamentals, applications, and future directions

Green Chemical Engineering, Journal Year: 2023, Volume and Issue: 5(4), P. 440 - 460

Published: Dec. 30, 2023

Organic dye pollutants present in wastewater pose a significant global challenge. Among pollutants, the synthetic Rhodamine B (RB) stands out due to its non-biodegradable nature and associated neurotoxic, carcinogenic, respiratory irritant properties. Extensive research has been conducted on efficacy of adsorption photodegradation techniques for removal RB from wastewater. While advanced oxidation processes (AOPs) have gained considerable attention their effectiveness recent years, underlying behaviors mechanisms these technologies remain incompletely understood. Therefore, comprehensive summary progress this domain is imperative clarify basics up-to-date achievements. This review provides an in-depth exploration fundamentals, advancements, future trajectories treatment technologies, mainly encompassing photodegradation. work starts with general introduction outlining sources, toxicity, diverse applicable strategies. Subsequently, it thoroughly examines crucial within non-photochemical, photochemical, such as UV light-assisted AOP, catalyst-assisted ozonation, Fenton systems, electrochemical technology. The primary objective furnish broad overview techniques, elucidating effectiveness, limitations, applicability. Following this, encapsulates state-of-the-art computational simulations pertaining interactions clays other adsorbents. Lastly, delves into column dye, elucidates various influencing factors, including bed height, feed concentration, pollutant feeding or flow rate, regeneration. panoramic aims provide valuable insights suitable gaps, applicability containing dye.

Language: Английский

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A review on development and modification strategies of MOFs Z-scheme heterojunction for photocatalytic wastewater treatment, water splitting, and DFT calculations

Heliyon, Journal Year: 2024, Volume and Issue: 10(13), P. e32861 - e32861

Published: June 13, 2024

Increasing water pollution and decreasing energy reserves have emerged as growing concerns for the environment. These pollutions are due to dangerous effects of numerous pollutants on humans aquatic organisms, such hydrocarbons, biphenyls, pesticides, dyes, pharmaceuticals, metal ions. On other hand, need a clean environment, finding alternatives fossil renewable fuels is very important. Hydrogen (H2) regarded viable promising substitute fuels, range methodologies been devised generate this particular source energy. Metal-organic frameworks (MOFs) new generation nanoporous coordination polymers whose crystal structure composed juxtaposition organic inorganic constituent units. Due their flexible nature, regular structure, high surface area, these materials attracted much attention removing various from wastewater, splitting. MOFs Z-scheme heterojunctions identified an economical eco-friendly method eliminating wastewater systems, produce H2. Their low-cost synthesis unique properties increase application in environment fields. The possess diverse properties, exceptional making them ideal degradation separation. development formulation photocatalytic system using MOFs, which stable potent redox capability, has successful approach addressing environmental shortages recent times. Through utilization benefits offered by photocatalysts, efficient separation migration charge carriers, extensive spectrum light absorption, among advantages, notable enhancements can be attained. This review encompasses techniques, heterojunctions, use treating wastewaters, including heavy metals, Also, it provides overview mechanisms, pathways, theoretical practical aspects heterojunctions. Finally, thoroughly assesses existing challenges suggests further research applications industrial-scale treatment.

Language: Английский

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Recent advances on synthesis and photocatalytic applications of MOF-derived carbon materials: A review

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 510, P. 215834 - 215834

Published: April 5, 2024

Language: Английский

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Tuning the local coordination environment of single-atom catalysts for enhanced electrocatalytic activity

EnergyChem, Journal Year: 2024, Volume and Issue: 6(2), P. 100119 - 100119

Published: Feb. 17, 2024

Language: Английский

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Unconventional mechanical and thermal behaviours of MOF CALF-20

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: April 16, 2024

Abstract CALF-20 was recently identified as a benchmark sorbent for CO 2 capture at the industrial scale, however comprehensive atomistic insight into its mechanical/thermal properties under working conditions is still lacking. In this study, we developed general-purpose machine-learned potential (MLP) MOF framework that predicts thermodynamic and mechanical of structure finite temperatures within first-principles accuracy. Interestingly, demonstrated to exhibit both negative area compression thermal expansion. Most strikingly, upon application tensile strain along [001] direction, shown display distinct two-step elastic deformation behaviour, unlike typical MOFs undergo plastic after elasticity. Furthermore, fracture up 27% direction room temperature comparable glasses. These abnormal make attractive material flexible stretchable electronics sensors.

Language: Английский

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Metal-organic frameworks for carbon-neutral catalysis: State of the art, challenges, and opportunities

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 506, P. 215726 - 215726

Published: Feb. 26, 2024

Language: Английский

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Machine learning potential for modelling H₂ adsorption/diffusion in MOFs with open metal sites

Chemical Science, Journal Year: 2024, Volume and Issue: 15(14), P. 5294 - 5302

Published: Jan. 1, 2024

Machine learning potential is required to accurately describe the interactions between challenging H 2 molecules and metal organic frameworks containing open sites.

Language: Английский

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