Elaborate Designed Three-Dimensional Hierarchical Conductive MOF/LDH/CF Nanoarchitectures for Superior Capacitive Deionization.

Rational exploration of cost-effective, durable, and high-performance electrode materials is imperative for advancing the progress of capacitive deionization (CDI). The integration of multicomponent layered double hydroxides (LDHs) with conjugated conductive metal-organic frameworks (c-MOFs) to fabricate bifunctional heterostructure electrode materials is considered a complex but promising strategy. Herein, the fabrication of elaborately designed three-dimensional hierarchical conductive MOF/LDH/CF nanoarchitectures (M-CAT/LDH/CF) as CDI anodes via a controllable grafted-growth strategy is reported.

Efficient activation of persulfate by copper-coated nano zero-valent iron for degradation of nitrogenous disinfection by-products: The key role of Cu.

The essential shortcoming of rapid passivation deactivation limits the efficient application of nano zero-valent iron (nZVI) in eliminating disinfection byproducts from drinking water. Copper-coated nano zero-valent iron (Cu-nZVI) bimetallic composites were synthesized to efficiently activate persulfate (PS) to remove nitrosopyrrolidine (NPYR). By introducing Cu-coated coatings, nZVI is protected from direct contact with PS; thus, Cu-nZVI appears to activate PS efficiently and stably without rapid deactivation.

Emerging frontiers of nickel-aluminium layered double hydroxide heterojunctions for photocatalysis.

The unique benefits of nickel-aluminium layered double hydroxide (Ni-Al LDH)-based heterojunctions, including large surface area, tunable bandgap and morphology, abundant reaction sites, and high activity, selectivity, and photostability, make them extremely promising for photocatalytic applications. Given the importance and benefits of Ni-Al LDH-based heterojunctions in photocatalysis, it is necessary to provide a summary of Ni-Al LDH-based heterojunctions for photocatalytic applications. Hence, in this review, we thoroughly described the material design for Ni-Al LDH-based heterojunctions, along with their recent developments in various photocatalytic applications, , H evolution, CO reduction, and pollutant removal.

A Metal-Organic Framework-Based Colorimetric Sensor Array for Transcutaneous CO Monitoring via Lensless Imaging.

Transcutaneous carbon dioxide (TcPCO2) monitoring provides a non-invasive alternative to measuring arterial carbon dioxide (PaCO2), making it valuable for various applications, such as sleep diagnostics and neonatal care. However, traditional transcutaneous monitors are bulky, expensive, and pose risks such as skin burns. To address these limitations, we have introduced a compact, cost-effective CMOS imager-based sensor for TcPCO2 detection by utilizing colorimetric reactions with metal-organic framework (MOF)-based nano-hybrid materials.

Highly selective nitrate reduction to N by Cu-nZVI/LDH bimetallic composite: Mechanism, reaction pathway and strategy for enhanced N formation.

Due to the highly reductive capacity of nano zero-valent iron (nZVI), the reduction of nitrate (NO-N) is prone to produce ammonia (NH-N) as a by-product and has low selectivity for nitrogen gas (N). Selective conversion of NO-N to harmless N by regulating reaction pathway is the key to improve the reduction and nitrogen removal performance of nZVI-based materials. In this study, metal copper (Cu) was added to nZVI to prepare Cu-nZVI/LDH bimetallic composites.

Challenges in Photocatalytic Carbon Dioxide Reduction.

An energy crisis and significant anthropogenic CO emissions as a result of rising fossil fuel consumption have caused a rapid increase in global temperature. One of the best solutions to these two issues is thought to be the photocatalytic reduction of CO into value-added carbon-containing products. In this aspect, the main challenges mainly include the photocatalytic mechanism, reaction activity, and product selectivity, especially in ambiguous reaction pathways and product selectivity, an unclear charge transfer mechanism, and an overestimate of product yield.

Mechanical property, corrosion behavior and cytocompatibility of CoCrMo for dental application: A comparative study of cast and laser powder bed fusion.

In this work, by employing powders sourced directly from the original ingot for additive manufacturing, we enabled a comparative overview of the performance between CoCrMo manufactured via laser powder bed fusion (LPBF) and those in their original cast condition. Microstructural analysis revealed that the cast (CT) alloy predominantly consisted of coarse grains with distribution of sigma phase, while the LPBF process resulted in a refined grain structure devoid of the sigma phase. The tensile strength tests demonstrated that the LPBF-derived CoCrMo alloy had substantially greater tensile strength, and ductility compared to CT alloy.

A critical review of nitrate reduction by nano zero-valent iron-based composites for enhancing N selectivity.

Due to the highly reductive capacity of nano zero-valent iron (nZVI) nanoparticles, the reduction of nitrate (NO-N) is prone to produce ammonia nitrogen (NH-N) as a by-product and has low selectivity for nitrogen gas (N). Water and dissolved oxygen (DO) in the solution consume electrons from nZVI, decreasing the efficiency of NO-N reduction. In order to overcome the drawbacks of plain nZVI being used to remove NO-N pollution, nZVI-based multifunctional materials have been constructed to realize the selective conversion of NO-N to N as well as the efficient removal of NO-N.

Establishment of a Mass Concrete Strength-Monitoring Method Using Barium Titanate-Bismuth Ferrite/Polyvinylidene Fluoride Nanocomposite Piezoelectric Sensors with Temperature Stability.

Mass concrete is widely used in large-scale projects, including metro upper cover structures, water conservancy dams, and heavy equipment foundations, among others, necessitating the process of health monitoring in mass concrete construction. The development of reliable and simple strength-monitoring methods for mass concrete is challenging because the inner temperature of mass concrete is high and changes a lot. This study proposes a strength-monitoring approach for mass concrete using barium titanate-bismuth ferrite/polyvinylidene fluoride (BT-BFO/PVDF) nanocomposite piezoelectric sensors, wherein the new sensors are embedded as actuators and sensors in mass concrete.

Full life cycle green preparation of collagen-based food packaging films using Halocynthia roretzi as raw material.

The extraction of collagen for packaging films typically requires a time-consuming process and the use of substantial chemicals. Herein, we present a full life cycle green preparation method for rapidly producing collagen-based food packaging films using Halocynthia roretzi (HR), a collagen-rich marine organism, as raw material. We first prepared the micro/nano-sized collagen fibers from HR tissue by utilizing urea and sonication as effective hydrogen-bond breakers.

Impact of hydrogen sulfide on anammox and nitrate/nitrite-dependent anaerobic methane oxidation coupled technologies.

The coupling between anammox and nitrate/nitrite-dependent anaerobic methane oxidation (n-DAMO) has been considered a sustainable technology for nitrogen removal from sidestream wastewater and can be implemented in both membrane biofilm reactor (MBfR) and granular bioreactor. However, the potential influence of the accompanying hydrogen sulfide (HS) in the anaerobic digestion (AD)-related methane-containing mixture on anammox/n-DAMO remains unknown. To fill this gap, this work first constructed a model incorporating the C/N/S-related bioprocesses and evaluated/calibrated/validated the model using experimental data.

Functional UiO-66 for highly selective adsorption of -nitrosodipropylamine: adsorption performance and mechanisms.

-Nitrosodipropylamine (NDPA) is a class of nitrogenous disinfection by-products (N-DBPs) with high toxicity. Although NDPA present in water bodies is at relatively low concentrations, the potential risk is high due to its high toxicity and bioaccumulation. Metal-organic frameworks (MOFs), a new type of porous material with remarkable functionality, have shown great performance in a wide variety of applications in adsorption.

Dual green hemostatic sponges constructed by collagen fibers disintegrated from by a shortcut method.

Recently, biomacromolecules have received considerable attention in hemostatic materials. Collagen, an ideal candidate for hemostatic sponges due to its involvement in the clotting process, has been facing challenges in extraction from raw materials, which is time-consuming, expensive, and limited by cultural and religious restrictions associated with traditional livestock and poultry sources. To address these issues, this study explored a new shortcut method that using wild (HR), a marine fouling organism, as a raw material for developing HR collagen fiber sponge (HRCFs), which employed urea to disrupt hydrogen bonds between collagen fiber aggregates.

The Performance of Cellulose Composite Membranes and Their Application in Drinking Water Treatment.

Water scarcity and water pollution have become increasingly severe, and therefore, the purification of water resources has recently garnered increasing attention. Given its position as a major water resource, the efficient purification of drinking water is of crucial importance. In this study, we adopted a phase transition method to prepare ZrO/BCM (bamboo cellulose membranes), after which we developed IP-ZrO/BC-NFM (bamboo cellulose nanofiltration membranes) through interfacial polymerization using piperazine (PIP) and tricarbonyl chloride (TMC).

Correction: Critical role of hydrogen bonding between microcrystalline cellulose and g-CN enables highly efficient photocatalysis.

Correction for 'Critical role of hydrogen bonding between microcrystalline cellulose and g-CN enables highly efficient photocatalysis' by Zhaoqiang Wang , , 2024, , 204-207, https://doi.org/10.1039/D3CC04800D.

Recent Advances in LDH/g-CN Heterojunction Photocatalysts for Organic Pollutant Removal.

Environmental pollution has been decreased by using photocatalytic technology in conjunction with solar energy. An efficient method to obtain highly efficient photocatalysts is to build heterojunction photocatalysts by combining graphitic carbon nitride (g-CN) with layered double hydroxides (LDHs). In this review, recent developments in LDH/g-CN heterojunctions and their applications for organic pollutant removal are systematically exhibited.

A Review of Advanced Abdominal Wall Hernia Patch Materials.

Tension-free abdominal wall hernia patch materials (AWHPMs) play an important role in the repair of abdominal wall defects (AWDs), which have a recurrence rate of <1%. Nevertheless, there are still significant challenges in the development of tailored, biomimetic, and extracellular matrix (ECM)-like AWHPMs that satisfy the clinical demands of abdominal wall repair (AWR) while effectively handling post-operative complications associated with abdominal hernias, such as intra-abdominal visceral adhesion and abnormal healing. This extensive review presents a comprehensive guide to the high-end fabrication and the precise selection of these advanced AWHPMs.

Critical role of hydrogen bonding between microcrystalline cellulose and g-CN enables highly efficient photocatalysis.

Developing a highly efficient photocatalyst for energy and environmental applications is urgently required. Herein, graphitic carbon nitride (CN) coupled with microcrystalline cellulose (MCC) (denoted as MCC-X/CN) shows excellent photocatalytic performance for tetracycline (TC) degradation and H evolution. And the optimized MCC-0.

Synergistic effect and mechanism of nZVI/LDH composites adsorption coupled reduction of nitrate in micro-polluted water.

In this study, nZVI/LDH composites were prepared by loading nano zero-valent iron (nZVI) on layered double hydroxide (LDH) surface for adsorption coupled reduction of nitrate (NO-N). The results showed that the removal of NO-N and total nitrogen (TN) by the nZVI/LDH composites was 88.64% and 77.

Enhancing electricity-driven methanogenesis by assembling biotic-abiotic hybrid system in anaerobic membrane bioreactor.

Biotic-abiotic hybrid systems are promising technologies to enhance methane production in anaerobic wastewater treatment. However, the dense structure of the extracellular polymeric substances (EPS) present in anaerobic granular sludge (AGS) poses challenges with respect to the implementation of hybrid systems and efficient interspecies electron transfer. In this study, the use of AGS with a Ni/Fe layered double hydroxide@activated carbon (Ni/Fe LDH@C-AGS) was investigated in an anaerobic membrane bioreactor (AnMBR).

Aerosol exchange between pressure-equilibrium rooms induced by door motion and human movement.

It is now widely recognised that aerosol transport is major vector for transmission of diseases such as COVID-19, and quantification of aerosol transport in the built environment is critical to risk analysis and management. Understanding the effects of door motion and human movement on the dispersion of virus-laden aerosols under pressure-equilibrium conditions is of great significance to the evaluation of infection risks and development of mitigation strategies. This study uses novel numerical simulation techniques to quantify the impact of these motions upon aerosol transport and provides valuable insights into the wake dynamics of swinging doors and human movement.

A porous metal-organic cage liquid for sustainable CO conversion reactions.

Porous liquids are fluids with the permanent porosity, which can overcome the poor gas solubility limitations of conventional porous solid materials for three phase gas-liquid-solid reactions. However, preparation of porous liquids still requires the complicated and tedious use of porous hosts and bulky liquids. Herein, we develop a facile method to produce a porous metal-organic cage (MOC) liquid (Im-PL-Cage) by self-assembly of long polyethylene glycol (PEG)-imidazolium chain functional linkers, calixarene molecules and Zn ions.

Kinetically and Thermodynamically Favorable Ni-Al Layered Double Hydroxide/Ni-Doped ZnCdS S-Scheme Heterojunction Triggering Photocatalytic H Evolution.

Layered double hydroxide (LDH)-based photocatalysts have attracted more attention in photocatalysis due to their low cost, wide band gaps, and adjustable photocatalytic active sites; however, their low photogenerated carrier separation efficiency limits their photocatalytic efficiency. Herein, a NiAl-LDH/Ni-doped ZnCdS (LDH/Ni-ZCS) S-scheme heterojunction is rationally designed and constructed from kinetically and thermodynamically favorable angles. The 15% LDH/1% Ni-ZCS displays comparable photocatalytic hydrogen evolution (PHE) activity with a rate of 6584.

Governing the aggregation of type I collagen mediated through β-cyclodextrin.

The effect of carbohydrates on collagen self-assembly behavior has been widely investigated because of their regulation on collagen fibrogenesis in vivo. In this paper, β-cyclodextrin (β-CD) was selected as an external disturbance to explore its intrinsic regulating mechanism on collagen self-assembly. The results of fibrogenesis kinetics indicated that β-CD had a bilateral regulation on collagen self-aggregation process, which was closely related to the content of β-CD: collagen protofibrils with low β-CD content were less aggregated compared to collagen protofibrils with high β-CD content.

Aqueous rechargeable ammonium ion batteries based on MoS/MXene with a ball-flower morphology as an anode and NHVO with a layered structure as a cathode.

Due to the small hydrated ionic radius and light molar mass of ammonium ions, aqueous ammonium ion batteries attract much attention, providing high security, environmental friendliness and low cost. However, the lack of suitable electrode materials with high specific capacity is a big challenge for practical application. Therefore, in view of this problem, we fabricated an anode applying a MoS material with a ball-flower morphology anchored to MXene nanoflakes, and it shows excellent rate capability in a novel aqueous ammonium ion battery.