A systematic review on polysaccharides from fermented Cordyceps sinensis: Advances in the preparation, structural characterization, bioactivities, structure-activity relationships.

Cordyceps sinensis (Berk.) Sacc. (Ophiocordyceps sinensis) is an edible and medicinal fungus used as a natural superior tonic.

Plasma-induced, N-doped, and reduced graphene oxide-incorporated NiCo-layered double hydroxide nanowires as a high-capacity redox mediator for sustainable decoupled water electrolysis.

Although the recent emergence of decoupled water electrolysis prevents typical H/O mixing, the further development of decoupled water electrolysis has been confined by the lack of reliable redox mediator (RM) electrodes to support sustainable H production. As energy storage electrodes, layered double hydroxides (LDHs) possess inherently poor conductivity/stability, which can be improved by growing LDHs on graphene substrates in situ. The proper modification of the graphene surface structure can improve the electron transport and energy storage capacity of composite electrodes, while current methods are usually cumbersome and require high temperatures/chemical reagents.

High buffering capacity cobalt-doped nickel hydroxide electrode as redox mediator for flexible hydrogen evolution by two-step water electrolysis.

Two-step water electrolysis has been proposed to tackle the ticklish H/O mixture problems in conventional alkaline water electrolysis recently. However, low buffering capacity of pure nickel hydroxide electrode as redox mediator limited practical application of two-step water electrolysis system. A high-capacity redox mediator (RM) is urgently needed to permit consecutive operation of two-step cycles and high-efficiency hydrogen evolution.

Rosmarinic acid, the active component of Rubi Fructus, induces apoptosis of SGC-7901 and HepG2 cells through mitochondrial pathway and exerts anti-tumor effect.

Rosmarinic acid (RA) is a well-known phenolic acid widely present in over 160 species of herbal plants and known to exhibit anti-tumor effects on breast, prostate, and colon cancers in vitro. However, its effect and mechanism in gastric cancer and liver cancer are unclear. Moreover, there is no RA report yet in the chemical constituents of Rubi Fructus (RF).

Pd-doped HKUST-1 MOFs for enhanced hydrogen storage: effect of hydrogen spillover.

Extensive research has been devoted to developing metal nanoparticle (NP) doped porous materials with large hydrogen storage capacity and high hydrogen release pressure at ambient temperature. The ultra-sound assisted double-solvent approach (DSA) was applied for sample synthesis. In this study, tiny Pd NPs are confined into the pore space of HKUST-1, affording Pd@HKUST-1-DS with minimizing the aggregation of Pd NPs and subsequently the formation of Pd NPs on the external surface of HKUST-1.

Mechanisms and degradation pathways of doxycycline hydrochloride by FeO nanoparticles anchored nitrogen-doped porous carbon microspheres activated peroxymonosulfate.

Peroxymonosulfate (PMS) based advanced oxidation processes have gained widespread attention in refractory antibiotics treatment. In this study, FeO nanoparticles anchored nitrogen-doped porous carbon microspheres (FeO/NCMS) were synthesized and applied to PMS heterogeneous activation for doxycycline hydrochloride (DOX-H) degradation. Benefitting from synergy effects of porous carbon structure, nitrogen doping, and fine dispersion of FeO nanoparticles, FeO/NCMS showed excellent DOX-H degradation efficiency within 20 min via PMS activation.

Three-dimensional ordered macroporous molybdenum doped NiCoP honeycomb electrode for two-step water electrolysis.

Two-step alkaline water electrolysis is considered a safe and efficient method for producing hydrogen from renewable energy. Reversal of the current polarity in a bifunctional electrocatalyst used as a gas evolution electrode (GEE) in two-step water electrolysis can generate H/O at different times and in different spaces. The design of a bifunctional electrocatalyst with high durability and excellent activity is imperative to achieving continuous, safe, and pure H generation via two-step alkaline water electrolysis.

Volatile organic compounds degradation by nonthermal plasma: a review.

Volatile organic compounds (VOCs) have posed a severe threat on both ecosystem and human health which thus have gained much attention in recent years. Nonthermal plasma (NTP) as an alternative to traditional methods has been employed to degrade VOC in the atmosphere and wastewater for its high removal efficiency (up to 100%), mild operating conditions, and environmental friendliness. This review outlined the principles of NTP production and the applications on VOC removal in different kinds of reactors, like single/double dielectric barrier discharge, surface discharge, and gliding arc discharge reactors.

Highly Effective H/D Separation within the Stable Cu(I)Cu(II)-BTC: The Effect of Cu(I) Structure on Quantum Sieving.

Realizing ideal deuterium separation from isotopic mixtures remains a daunting challenge because of their almost identical sizes, shapes, and physicochemical properties. Using the quantum sieving effect in porous materials with suitable pore size and open metal sites (OMSs) enables efficient hydrogen isotope separation. Herein, synthetic HKUST-1-derived microporous mixed-valence Cu(I)Cu(II)-BTC (BTC = benzene-1,3,5-tricarboxylate), featuring a unique network of distinct Cu(I) and Cu(II) coordination sites, can remarkably boost the D/H isotope separation, which has a high selectivity () of 37.

Correction: Graphene oxide-iron oxide and reduced graphene oxide-iron oxide hybrid materials for the removal of organic and inorganic pollutants.

[This corrects the article DOI: 10.1039/C2RA20885G.].

Correction: Synthesis of porous FeO hollow microspheres/graphene oxide composite for Cr(VI) removal.

Correction for 'Synthesis of porous FeO hollow microspheres/graphene oxide composite for Cr(VI) removal' by Mancheng Liu , , 2013, , 14710-14717, https://doi.org/10.1039/C3DT50955A.

Efficient adsorption and reduction of Cr(VI) from aqueous solution by Santa Barbara Amorphous-15 (SBA-15) supported Fe/Ni bimetallic nanoparticles.

Nanoscale zero-valent iron (nZVI or Fe) can rapidly reduce Cr(VI) contaminants in the water environment, but the agglomeration and passivation of the Fe system have adverse effects on its application. In this study, a novel mesoporous Santa Barbara Amorphous-15 supported Fe/Ni bimetallic composite (SBA-15@Fe/Ni) is proposed to remove Cr(VI). The proposed material can enhance the stability and removal capacity of the nZVI system.

A rare potassium-rich zirconium fluorophosphonate with high Eu adsorption capacities from acidic solutions.

A novel 3D potassium-containing zirconium fluorophosphonate KZr[CH(PO)]F (SZ-8) was successfully synthesized as single crystals a solvothermal method using a mixture of nitric acid and potassium nitrate as mineralizers. SZ-8 can adsorb 110.6 and 57 mg g of Eu in pH 2 and pH 1 solutions respectively, highlighting its potential remediation for radionuclides with high charges.

Nitrate removal under low carbon to nitrogen ratio by modified corn straw bioreactor: Optimization and possible mechanism.

The removal of nitrate (NO-N) from water bodies under the conditions of poor nutrition and low carbon to nitrogen (C/N) ratio is a widespread problem. In this study, modified corn stalk (CS) was used to immobilize sp. CF6 with cellulose-degrading and denitrifying abilities.

Interconnected hierarchical nickel-carbon hybrids assembled by porous nanosheets for Cr(VI) reduction with formic acid.

Magnetic carbon materials promise distinct advantages in the decontamination of heavy metal ions. In this work, a novel interconnected hierarchical nickel-carbon (Ni@IHC) hybrid was synthesized by combining the solvothermal method with a one-step pyrolysis under argon atmosphere. Benefitting from 3D flower-like morphology, interconnected porous nanosheets, large surface area, and abundant Ni nanoparticles, Ni@IHC hybrids can remove Cr(VI) within 25 min by using formic acid (FA) as a reductant at 25 ℃.

Efficient Sr-90 removal from highly alkaline solution by an ultrastable crystalline zirconium phosphonate.

We report here a distinct case of strontium removal under 1 M NaOH solution by an ultrastable crystalline zirconium phosphonate framework (SZ-7) with high adsorption capacity (183 mg g) and in-depth removal performance (K = 3.9 × 10 mL g), demonstrating the potential application of SZ-7 for Sr removal in highly alkaline nuclear waste.

Pseudomonas stutzeri GF2 augmented the denitrification of low carbon to nitrogen ratio: Possibility for sewage wastewater treatment.

A denitrifying strain with high efficiency at low carbon to nitrogen (C/N) ratio of 2.0 was isolated and characterized. It belongs to the genus Pseudomonas.

Role of porous polymer carriers and iron-carbon bioreactor combined micro-electrolysis and biological denitrification in efficient removal of nitrate from wastewater under low carbon to nitrogen ratio.

In the current research, a novel bioreactor composed of porous polymer carriers and iron-carbon (PPC@FeC) was established through bacterial immobilized technology. The influence of key factors was studied on the nitrate removal performance of the PPC@FeC bioreactor. The experimental results showed that the highest removal rate of nitrate (7.

Three dimensional flower-like magnetic polyethyleneimine@MoS composites for highly efficient removal of Cr(VI) and Pb(II) ions.

Magnetic FeO nanoparticles were coated by polyethyleneimine (PEI), and then FeO@PEI was further modified with MoS by the hydrothermal method to fabricate 3D flower-like structured magnetic polyethyleneimine@MoS (MP@MoS) composites, and the composites were served as efficient adsorbents to capture Cr(VI) and Pb(II) from aqueous solution. The effects of temperature, pH, shaking time and environmental conditions on adsorption performance of MP@MoS towards Cr(VI) and Pb(II) have been conducted by batch adsorption experiments. The prepared MP@MoS exhibited high adsorption capacities (192.

Solvent-free engineering of Fe/FeC nanoparticles encased in nitrogen-doped carbon nanoshell materials for highly efficient removal of uranyl ions from acidic solution.

In this work, nitrogen-doped carbon nanoshell structure with the encased Fe/FeC nanoparticles (Fe@NC) was synthesized with a solvent-free method via direct carbonizing the ground mixture of dicyandiamide and ferric chloride hexahydrate. The morphology, structure, and surface properties of as-synthesized Fe@NC were characterized systematically, and the removal performance of Fe@NC towards U(VI) was studied in detail. The results manifested that the Fe@NC possessed large surface area (127.

Retraction: Enhanced adsorption of Eu(iii) on mesoporous AlO/expanded graphite composites investigated by macroscopic and microscopic techniques.

Retraction of 'Enhanced adsorption of Eu(iii) on mesoporous AlO/expanded graphite composites investigated by macroscopic and microscopic techniques' by Yubing Sun et al., Dalton Trans., 2012, 41, 13388-13394.

Retraction: Enhanced adsorption of ionizable aromatic compounds on humic acid-coated carbonaceous adsorbents.

[This retracts the article DOI: 10.1039/C2RA21713A.].

Magnetic metal organic frameworks/graphene oxide adsorbent for the removal of U(VI) from aqueous solution.

A well-defined magnetic metal organic frameworks (MOFs)/graphene oxide (FeO@HKUST-1/GO) consisting of magnetic FeO nanoparticles, HKUST-1 nanocrystal and GO was synthesized through a simple and environmentally friendly approach. Characterizations of FeO@HKUST-1/GO adsorbing U(VI) with high-resolution transmission electron microscopy suggested that the FeO@HKUST-1/GO possessed good stability. The introduction of GO enhanced the ability of particles to uptake U(VI) from aqueous solution.

Colloidal Behaviors of Two-Dimensional Titanium Carbide in Natural Surface Waters: The Role of Solution Chemistry.

Although two-dimensional titanium carbide (TiCT MXene) has emerged as a shining star material in various communities, its environmental behaviors and fate remain unknown. Herein, the colloidal properties and stability of TiCT MXene are explored in aquatic systems for the first time, considering the roles of solution chemistry conditions (e.g.