Interfacial hydrophilicity induced CoAl-LDH/TiCT@PVDF Fenton-like catalytic filtration membrane for efficient anti-fouling and water decontamination.

The catalytic filtration membrane, combining the interfacial hydrophilic effect with PMS based Fenton-like oxidation processes, demonstrates great potential as an advanced solution for alleviating membrane fouling and removing contaminants. Herein, a novel type of hollow fiber CoAl-LDH/TiCT@PVDF membranes was successfully fabricated. The well-designed hybrid membrane incorporating 0.

Regulation of surface-bound radicals enhanced Fenton-like activities via radicals confined on FeO/MXenes.

The low yield and efficiency of surface-bound radicals seriously affect the Fenton-like activity of the catalyst. In this study, novel FeO/MXenes (VC and TiC) composites are designed for structural domain regulation of surface-bound radicals. The MXenes with multilayer structure enhance the adsorption energy and electron transfer of the FeO/peroxodisulfate (PDS) system.

The impact of transferred air bubble position on clinical pregnancy rate in FET cycles.

We aim to investigate the correlation of the position of the transferred air bubble with the clinical pregnancy rate (PR) in frozen-thawed embryo transfer(FET) cycles. A prospective clinical study was carried out at Reproductive medicine center of West China Second University Hospital between June 2020 and May 2021. 1159 women underwent FET were included in this study.

Efficient degradation of tetracycline by a novel nanoconfinement structure CuO/Cu@MXene composite.

In order to solve the problem of easy aggregation of copper oxides in environmental remediation, it is an effective method to confine copper oxides to suitable substrates. Herein, we design a novel CuO/Cu@MXene composite with a nanoconfinement structure, and it can effectively activate peroxymonosulfate (PMS) to produce OH for degradation tetracycline (TC). Results indicated that the MXene with extraordinary multilayer structure and surface negativity could fix the CuO/Cu nanoparticles in the layer spaces and suppress the agglomeration of nanoparticles.

Selenization governs the intrinsic activity of copper-cobalt complexes for enhanced non-radical Fenton-like oxidation toward organic contaminants.

Non-radical oxidation pathways in the Fenton-like process have a superior catalytic activity for the selective degradation of organic contaminants under complicated water matrices. Whereas the synthesis of high-performance catalysts and research on reaction mechanisms are unsatisfactory. Herein, it was the first report on copper-cobalt selenide (CuCoSe) that was well-prepared to activate hydrogen peroxide (HO) for non-radical species generation.

Enhanced peroxymonosulfate activation by hierarchical porous FeO/CoS nanosheets for efficient elimination of rhodamine B: Mechanisms, degradation pathways and toxicological analysis.

Fenton-like catalysts have usually superior catalytic activities, however, some drawbacks of ion leaching and difficult-to-recovery limit their applications. In this work, a hierarchical porous FeO/CoS catalyst was fabricated via a simple phase change reaction to overcome these shortcomings. The introduced iron cooperates with cobalt achieving high-efficiency activation of peroxymonosulfate (PMS) to eliminate Rhodamine B (RhB).

Enhanced Fenton-like degradation of sulfadiazine by single atom iron materials fixed on nitrogen-doped porous carbon.

The use of single-atom iron catalysts in heterogeneous Fenton-like reactions has demonstrated tremendous potential for antibiotic wastewater treatment. In this study, single-atom iron fixed on nitrogen-doped porous carbon materials (Fe-ISAs@CN) was synthesised using a metal organic framework (MOF) as a precursor. Fe-ISAs@CN was applied as a heterogeneous Fenton catalyst to activate HO for the degradation of sulfadiazine (SDZ) in an aqueous solution.

Bio-inspired porous helical carbon fibers with ultrahigh specific surface area for super-efficient removal of sulfamethoxazole from water.

Helical carbon fibers (HCFs) are a new kind of fascinating carbon material, and have caused much attention for their distinctive features, diversified novel properties, and applications. However, the application of HCFs still faces a series of barriers, especially in the repetitive preparation of HCFs. In this paper, we initially report the synthesis of the HCFs with ultrahigh specific surface area (3089 m g) by a bio-template process using the high purified spiral vessels (SVs) as the template.

Attitudes towards HPV self-sampling among women in Chengdu, China: A cross-sectional survey.

Objective: Cervical cancer screening participation in China remains insufficient, possibly because of embarrassment or discomfort. We assessed knowledge of HPV and its link to cervical cancer, and whether HPV self-sampling might be an acceptable alternative to clinician-based screening, among Sichuan women.

Methods: A sample of healthy women undergoing routine physical examinations in 2017 at the West China Hospital, Sichuan University, completed a questionnaire.

Nano-hybrids of needle-like MnO on graphene oxide coupled with peroxymonosulfate for enhanced degradation of norfloxacin: A comparative study and probable degradation pathway.

In this work, 1D MnO nano-needles were prepared and grown on the graphene oxide (GO) nano-sheets successfully. The morphology and structure of materials were explored. The MnO nano-needles with a length of 200-400 nm were distributed uniformly on the GO nano-sheets.

A nanoscale "yarn ball"-like heteropoly blue catalyst for extremely efficient elimination of antibiotics and dyes.

Fenton system is one of the most popular methods to eliminate antibiotics and dyes in aquatic environment. However, the existed Fenton system is limited by various factors such as potential second pollution and narrow pH range. In this study, we report that the bottlenecks for high strength antibiotics and dyes wastewater treatment at a wide pH range can be well tackled by the nanoscale "yarn ball"-like Mo/W-containing heteropoly blue (HPB) catalyst MgTiMoOSiW (1).

Distribution of high-risk HPV types among women in Sichuan province, China: a cross-sectional study.

Background: Persistent infection with high-risk human papillomavirus (HR-HPV) is a major cause of cervical intraepithelial neoplasia and invasive cervical cancer. We investigated the prevalence of HR-HPV infection and distribution of viral genotypes among women in this area.

Methods: Women in Sichuan older than 20 years were screened for cervical cancer between January 2015 and December 2016 using liquid-based cytology testing and a flow cytometry-fluorescence hybridization test for HPV-DNA.

Super rapid removal of copper, cadmium and lead ions from water by NTA-silica gel.

Copper (Cu), cadmium (Cd) and lead ions (Pb) are toxic to human beings and other organisms. In this study, a silica gel material modified with nitrilotriacetic acid (NTA-silica gel) was sensibly designed and prepared a simple amidation procedure for the removal of Cu, Cd and Pb from water. The NTA-silica gels showed rapid removal performances for the three metal ions (Pb (<2 min), Cu and Cd (<20 min)) with relatively high adsorption capacities (63.

Morphology-tunable WMoO nanowire catalysts for the extremely efficient elimination of tetracycline: kinetics, mechanisms and intermediates.

The presence of antibiotics in aquatic environments has attracted global concern. The Fenton system is one of the most popular methods for eliminating antibiotics in aquatic environments, but the existing Fenton system is limited due to the potential for secondary pollution, and the narrow pH range (∼3-5). In this study, we report that the bottlenecks for high-strength tetracycline (TC) wastewater treatment under neutral conditions can be tackled well by a class of mixed-valence W/Mo containing oxides (WMoO-x) with tunable morphologies.

Synthesis of ultra-large ZrO nanosheets as novel adsorbents for fast and efficient removal of As(III) from aqueous solutions.

Consumption of water having excessive arsenic (As) contamination can cause adverse health effects on human beings. In this study, novel ultra-large zirconium oxide (ZrO) nanosheets were successfully synthesized using graphene oxide (GO) templates and their adsorption-ability was studied for arsenite (As(III)). Owing to higher values of surface area, numbers of available hydroxyl groups and strong chemisorption binding affinity towards As(III), the synthesized novel ultra-large ZrO nanosheets showed high adsorption-ability for As(III) over a wide pH range.

EDTA-Fe(III) Fenton-like oxidation for the degradation of malachite green.

Industrial waste, urban sewage and aquaculture have led to severely increased grades of environment pollutants such as dyes, pesticides and fertilizer. The use of technologies for purifying contaminated waters can be difficult and toxic due to the anti-photolysis, anti-oxidation and anti-bio-oxidation characteristics of organic pollutants, and there is therefore a significant need for new approaches. Here, we report methods of Fenton oxidation and EDTA-Fe(III) Fenton-like oxidation which can be used to degrade malachite green (MG: a dye and antibiotic-like substance) from contaminated water.

Knowledge of HPV and acceptability of HPV vaccine among women in western China: a cross-sectional survey.

Background: Since most cervical cancer cases are caused by persistent high-risk human papillomavirus (HR-HPV) infection, knowledge of HPV among women is essential for the prevent of cervical cancer. This study was aimed to assess knowledge among women in western China about HPV and its association with cervical cancer, and to assess their acceptance of HPV vaccination.

Methods: A sample of healthy women undergoing routine physical examinations in the Health Management Center of West China Hospital, Sichuan University between January and December 2014 completed a questionnaire.

Administration of fentanyl via a slow intravenous fluid line compared with rapid bolus alleviates fentanyl-induced cough during general anesthesia induction.

Objective: Fentanyl-induced cough (FIC) is a common complication with a reported incidence from 18.0% to 74.4% during general anesthesia induction.

Facile synthesis of novel calcined magnetic orange peel composites for efficient removal of arsenite through simultaneous oxidation and adsorption.

Increasing exposure to arsenic (As) contaminated ground water has become a global health hazard to humanity. Suitable adsorbent for As removal from water, especially for As(III) than As(V), is an urgent but still a challenging task. In this study, waste orange peel (OP) was modified with magnetic nanoparticles followed by calcination as a novel adsorbent and investigated for instantaneous oxidation and adsorption of As(III) from aqueous solutions.

Study on the removal of organic micropollutants from aqueous and ethanol solutions by HAP membranes with tunable hydrophilicity and hydrophobicity.

A biocompatible and uniquely defined hydroxyapatite (HAP) adsorption membrane with a sandwich structure was developed for the removal of organic micropollutants for the first time. Both the adsorption and membrane technique were used for the removal of organic micropollutants. The hydrophilicity and hydrophobicity of the HAP adsorbent and membrane were tunable by controlling the surface structure of HAP.

Removal of cadmium and lead ions from water by sulfonated magnetic nanoparticle adsorbents.

A new adsorbent, FeO sulfonated magnetic nanoparticle (FeO-SOH MNP), was developed for heavy metal ions removal from water, which could be effectively separated from the solution owing to the superparamagnetic property. The nanoparticles can be used to remove heavy metal ions due to the additional active site, "sulfo-group", introduced by the AMPS branches grafted onto the iron oxide. The as-synthesized materials were characterized by SEM, TEM, FT-IR and BET.

A 2D-g-CN nanosheet as an eco-friendly adsorbent for various environmental pollutants in water.

A novel graphitic carbon nitride (g-CN) nanosheet adsorbent with a large surface area, remarkable hydrophilicity and high adsorption capacity, was presented for the removal of cadmium ions (Cd) and methylene blue (MB) from aqueous solution. Adsorption measurements were conducted systematically to study the influences of the contact time, initial concentrations of Cd and MB, temperature, and pH value. The maximum adsorption capacities of g-CN towards Cd and MB were 94.

A biocompatible and novelly-defined Al-HAP adsorption membrane for highly effective removal of fluoride from drinking water.

A biocompatible and novelly-defined adsorption membrane for rapid removal of fluoride was prepared. Both adsorption and membrane techniques were used in this research. Al(OH) nanoparticles modified hydroxyapatite (Al-HAP) nanowires were developed and made into Al-HAP membrane.

Performance of a novelly-defined zirconium metal-organic frameworks adsorption membrane in fluoride removal.

A novelly-defined adsorption membrane for rapid removal of fluoride from drinking water was prepared. Both zirconium metal-organic frameworks (Zr-MOFs) adsorbent and membrane with large specific surface area of 740.28m/g were used for fluoride removal for the first time.

Development of a nanosphere adsorbent for the removal of fluoride from water.

A new uniform-sized CeCO3OH nanosphere adsorbent was developed, and tested to establish its efficiency, using kinetic and thermodynamic studies, for fluoride removal. The results demonstrated that the CeCO3OH nanospheres exhibited much high adsorption capacities for fluoride anions due to electrostatic interactions and exchange of the carbonate and hydroxyl groups on the adsorbent surface with fluoride anions. Adsorption kinetics was fitted well by the pseudo-second-order model as compared to a pseudo-first-order rate expression, and adsorption isotherm data were well described by Langmuir model with max adsorption capacity of 45mg/g at pH 7.