Micro-nano H bubbles enhanced hydrodehalogenation of 3-chloro-4-fluoroaniline: Mass transfer and action mechanism.

3-chloro-4-fluoraniline (FCA) is an important intermediate for the synthesis of antibiotics, herbicides and insecticides, and has significant environmental health hazards. Catalytic hydrogenation technology is widely used in pretreatment of halogenated organics due to its simple process and excellent performance. However, compared with the research of high activity hydrogenation catalyst, the research of efficient utilization of hydrogen source under mild conditions is not sufficient.

A Rare Earth Chalcogenide Nonlinear Optical Crystal KLaGeS: Achieving Good Balance among Band Gap, Second Harmonic Generation Effect, and Birefringence.

Midinfrared nonlinear optical (NLO) rare earth chalcogenides have attracted extensive research interest in recent several decades. Employing charge-transfer engineering strategy in the early stage, rigid tetrahedral [GeS] was introduced into rare-earth sulfides to synthesize KYGeS, which had an enlarged band gap while maintaining a strong second harmonic generation (SHG) effect. Based on KYGeS, La was equivalently substituted to successfully synthesize KLaGeS with a stronger SHG effect ( = 1.

Optimal Design of Mid-Infrared Nonlinear-Optical Crystals: From SrZnSnSe to SrZnSiSe.

Improving the laser damage threshold (LDT) of mid-infrared nonlinear-optical (MIR NLO) crystal materials is crucial for their applications in areas such as environmental monitoring and pharmaceutical detection. This paper presents the successful synthesis of SrZnSiSe, a new MIR NLO crystal material that balances the LDT and second-harmonic-generation (SHG) effects and achieves phase matching. By replacement of Sn with Si in the existing SrZnSnSe material, the band gap of the material was increased, resulting in an LDT that is twice that of SrZnSnSe, while maintaining the 2 × AgGaS effect.

Electrocatalytic degradation of methyl orange and 4-nitrophenol on a Ti/TiO-NTA/La-PbO electrode: electrode characterization and operating parameters.

The anode material plays a crucial role in the process of electrochemical oxidation. Herein, a TiO nanotube arrays (TiO-NTA) intermediate layer and La-PbO catalytic layer were synthesized on a Ti surface by the electrochemical anodic oxidation and electrochemical deposition technology, respectively. The prepared Ti/TiO-NTA/La-PbO electrode was used as an electrocatalytic oxidation anode for pollutant degradation.

Impact of Pyrite Oxidation on the Pore-Structure Characteristics of Shale Reservoir Rocks under the Interaction of Fracturing Fluid.

Hydraulic fracturing combined with horizontal drilling is widely used to develop shale gas resources, and huge amounts of fracturing fluid are injected into shale reservoirs. However, the fracturing fluid is ineluctably retained in reservoir rocks after fracturing, resulting in the alteration of shale pore systems and further affecting the hydrocarbons production efficiency. In this work, two types of shales with different pyrite contents, namely, pyrite rich (PR, Niutitang Formation) and pyrite poor (PP, Xiamaling Formation), were emphasized to illustrate the effect of pyrite oxidation on pore structure after fracturing operation.

A Research on Delayed Thermal Depolarization, Electric Properties, and Stress in (BiNa)TiO-Based Ceramic Composites.

Depolarization behavior is one of the main shortcomings of (BiNa)TiO-based ceramics. Considering the undesirable efficiency of traditional modification methods, in this paper a series of 0-3 type ceramic composites 0.85(BiNa)TiO-0.

Degradation of Minocycline by the Adsorption-Catalysis Multifunctional PVDF-PVP-TiO Membrane: Degradation Kinetics, Photocatalytic Efficiency, and Toxicity of Products.

The photocatalytic degradation of minocycline was studied by using polyvinylidene fluoride-polyvinylpyrrolidone-TiO (PVDF-PVP-TiO) fiber mats prepared by an electrospinning technology. The influences of the TiO dosage, minocycline concentrations, inorganic anions, pH values, and dissolved organic matter (DOM) concentrations on the degradation kinetics were investigated. A mass of 97% minocycline was degraded in 45 min at 5% TiO dosage.

Breaking through the "3.0 eV wall" of energy band gap in mid-infrared nonlinear optical rare earth chalcogenides by charge-transfer engineering.

Increasing the energy band gap under the premise to maintain a large nonlinear optical (NLO) response is a challenging issue for the exploration and molecular design of mid-infrared nonlinear optical crystals. Utilizing a charge-transfer engineering method, we designed and synthesized a rare earth chalcogenide, KYGeS. With an NLO effect as large as that in AgGaS, KYGeS breaks through the limitation of energy band gap, i.

Improved Non-Piezoelectric Electric Properties Based on La Modulated Ferroelectric-Ergodic Relaxor Transition in (BiNa)TiO-Ba(Ti, Zr)O Ceramics.

The characteristic transition from ferroelectric (FE) to ergodic relaxor (ER) state in (BiNa)TiO (BNT) based lead-free ceramics provides an efficient approach to bring a highly ordered phase back to a disordered one. It would be rational to utilize this transition to improve relevant non-piezoelectric properties based on domain decomposition. In this work, different La contents were introduced to 0.

Multifunctional, Robust, and Porous PHBV-GO/MXene Composite Membranes with Good Hydrophilicity, Antibacterial Activity, and Platelet Adsorption Performance.

The limitations of hydrophilicity, strength, antibacterial activity adsorption performance of the biobased and biocompatible polymer materials, such as polyhydroxyalkanoates (PHAs), significantly restrict their wider applications especially in medical areas. In this paper, a novel composite membrane with high antibacterial activity and platelet adsorption performance was prepared based on graphene oxide (GO), MXene and 3-hydroxybutyrate-co-hydroxyvalerate (PHBV), which are medium-chain-length-copolymers of PHA. The GO/MXene nanosheets can uniformly inset on the surface of PHBV fibre and give the PHBV-GO/MXene composite membranes superior hydrophilicity due to the presence of hydroxyl groups and terminal oxygen on the surface of nanosheets, which further provides the functional site for the free radical polymerization of ester bonds between GO/MXene and PHBV.

Chemical characterization of particulate organic matter from commercial restaurants: Alkyl PAHs as new tracers for cooking.

Cooking is one of the primary sources of particulate organic matter (POM) in urban environments. Numerous experiments have been performed to investigate the composition of POM generated during cooking. However, there still remain substantial uncertainties in our knowledge regarding the emission characteristics of alkyl polycyclic aromatic hydrocarbons (PAHs) from cooking.

The role of carbonate in sulfamethoxazole degradation by peroxymonosulfate without catalyst and the generation of carbonate racial.

Peroxymonosulfate (PMS) can be activated by various catalysts to degrade organic contaminants in wastewater treatment processes. In this research, the co-activation of PMS by sulfamethoxazole (SMX) and carbonate is investigated. The results show that SMX can be degraded in situ, and the main reactive oxygen species are singlet oxygen and carbonate radicals.

From CuFeS to BaCuFeGeS: rational band gap engineering achieves large second-harmonic-generation together with high laser damage threshold.

A new germanium-based sulfide, Ba6Cu2FeGe4S16, achieves a band-gap broadening of more than 1 eV relative to CuFeS2. Remarkably, Ba6Cu2FeGe4S16 exhibits excellent comprehensive NLO performance (SHG, 1.5 × AgGaSe2; LDT, 2 × AgGaSe2), satisfying the essential requirements of mid-IR NLO candidates.

RbZnSnS: A Chalcogenide with Large Laser Damage Threshold Improved from the Mn-Based Analogue.

In the military and civilian fields, with the development of new technologies, high-powered nonlinear optical (NLO) crystals demonstrate broad application prospects. In this work, for purposes of designing a better NLO material, a new chalcogenide RbZnSnS was successfully designed with a high temperature solid-state method on the basis of previously reported compound SrMnSnS. The experimental results indicate that RbZnSnS possesses a prominent band gap of 3.

Regeneration of porous electrospun membranes embedding alumina nanoparticles saturated with minocycline by UV radiation.

A regeneration method for porous electrospun membranes embedding alumina nanoparticles saturated with minocycline was investigated by UV-LED system. The percentage of adsorption capacities before and after regeneration were used to evaluate regeneration efficiency. The PVDF and PVDF-AlO fiber mats were prepared by electrospinning technique.

LiGaGeS: A Chalcogenide with Good Infrared Nonlinear Optical Performance and Low Melting Point.

In this work, we design and synthesize a new chalcogenide LiGaGeS on the basis of known infrared (IR) material LiGaS by partially substituting Ga with Ge. This compound possesses very strong nonlinear (NLO) response (2.5 × LiGaS) and large band gap (3.

Bio-Electron-Fenton (BEF) process driven by microbial fuel cells for triphenyltin chloride (TPTC) degradation.

The intensive use of triphenyltin chloride (TPTC) has caused serious environmental pollution. In this study, an effective method for TPTC degradation was proposed based on the Bio-Electron-Fenton process in microbial fuel cells (MFCs). The maximum voltage of the MFC with graphite felt as electrode was 278.

Genome sequence of a microbial lipid producing fungus Cryptococcus albidus NT2002.

Cryptococcus albidus NT2002, isolated from the soil in Xinjiang, China, appeared to have the ability to accumulate microbial lipid by utilizing various carbon sources. The predominant properties make it as a potential bio-platform for biodiesel production. Here, we report the complete genome sequence of C.

K2Ln2As2Se9 (Ln = Sm, Gd): the first quaternary rare-earth selenoarsenate compounds with a 3D framework containing chairlike As2Se4 units.

The new compounds K(2)Ln(2)As(2)Se(9) (Ln = Sm, Gd) were obtained by applying the reactive flux method. The structure consists of a three-dimensional (3D) [Ln(2)As(2)Se(9)](2-) framework with K(+) ion-filling tunnels running along the b axis. The two unique Ln(3+) cations are coordinated by two Se(2)(2-) dumbbells, two AsSe(3)(3-) pyramids, and one chairlike As(2)Se(4)(2-) unit in a bicapped trigonal-prismatic geometry.

Syntheses, structures, and spectroscopic properties of K9Nd[PS4]4, K3Nd[PS4]2, Cs3Nd[PS4]2, and K3Nd3[PS4]4.

Four new quaternary alkali neodymium thiophosphates K 9Nd[PS 4] 4 ( 1), K 3Nd[PS 4] 2 ( 2), Cs 3Nd[PS 4] 2 ( 3), and K 3Nd 3[PS 4] 4 ( 4) were synthesized by reacting Nd with in situ formed fluxes of K 2S 3 or Cs 2S 3, P 2S 5 and S in appropriate molar ratios at 973 K. Their crystal structures are determined by single crystal X-ray diffraction. Crystal data: 1: space group C2/ c, a = 20.

Rb(3)Ti(3)(P(4)S(13))(PS(4))(3) and Cs(2)Ti(2)(P(2)S(8))(PS(4))(2): two polar titanium thiophosphates with complex one-dimensional tunnels.

The reactions of Ti with in situ formed polythiophosphate fluxes of A(2)S(3) (A = Rb, Cs), P(2)S(5), and S at 500 degrees C result in the formation of two new quaternary titanium thiophosphates with compositions Rb(3)Ti(3)(P(4)S(13))(PS(4))(3) (1) and Cs(2)Ti(2)(P(2)S(8))(PS(4))(2) (2). Rb(3)Ti(3)(P(4)S(13))(PS(4))(3) (1) crystallizes in the chiral hexagonal space group P6(3) (No. 173) with lattice parameters a = 18.

[Cytotoxic effect of oncolytic virus combined with mitomycin against human bladder cancer cells in vitro and in vivo].

Objective: To evaluate the effect of combined use of oncolytic virus and the chemotherapeutic agents mitomycin (MMC) in growth inhibition of human bladder cancer cell line T-24 in vitro.

Methods: Human bladder cancer cell line T-24 was infected with oncolytic virus (ONYX-015) of different multiplicity of infection, or treated with MMC in addition to ONYX-015. The changes in the cell growth, morphology, and apoptosis of cultured T-24 cells were observed by means of cell counting and fluorescence microscopy after the treatments.

K3Ln(AsS4)2 (Ln = Nd, Sm, Gd): the first rare earth thioarsenate compounds with infinite straight (1)infinity[Ln(AsS4)2]3- chains.

The structures of the novel compounds K3Ln(AsS4)2 (Ln = Nd, Sm, Gd) contain infinite straight (1)infinity[Ln(AsS4)2]3- anionic chains which are composed of interconnected LnS8 polyhedra and AsS4 tetrahedra. The compounds were synthesized via reactions of Ln metals with in-situ-formed potassium polythioarsenate fluxes.

[Expression of TFAR19(PDCD5) in normal human kidney, renal clear cell carcinoma, normal human bladder and bladder carcinoma].

Objective: To detect the expression of apoptosis gene PDCD5 in tissues of normal human kidney, renal clear cell carcinoma, normal bladder and bladder carcinoma, and explore the role of PDCD5 gene in renal clear cell carcinoma and bladder carcinoma.

Methods: Indirect immunohistochemistry was employed to detect PDCD5 expression in 63 kidney specimens and 42 bladder specimens. Positive expression rates and intensity of PDCD5 protein expression in the kidney tissue were investigated microscopically and by computerized image analysis.