Water pollution, such as marine oil spill and organic chemicals pollution, is a worldwide challenge. To advance this emerging field, Janus membranes with asymmetric wettability, for oil–water separation, similitude of diode in electrocircuit, are fabricated by leveraging the buoyancy of poly(vinylidene fluoride) nanofiber on water/air interface. ZnO nanowires are in situ grown on the surface of nanofibers immersed in the solution, mimicking a nanoscale Setaria viridis structure. Such Janus membrane shows a good hydrophilicity/underwater oleophobicity on ZnO nanowires modified side and exhibits opposite hydrophobicity on the other side. Due to the side‐specific morphologies, this membrane can work either as “water‐removing” type or “oil‐removing” type filter as a diode in fluid. The membrane shows excellent permeability with the water and oil flux up to 1210 and 7653 L m−2 h−1, respectively, only driven by gravity. The durability of functional membrane is excellent and separation efficiency is higher than 97.24% after ten cycling tests. Furthermore, the hydrophilic side demonstrates an excellent photocatalytic performance over the degradation of rhodamine B dye, as self‐cleaning properties. This Janus membrane is to be an excellent candidate for wastewater remediation, both oil/water separation and organic pollutant decomposition.

In this study, polyacrylonitrile-amidoxime nanofibers were prepared by combining the technique of electrospinning and chemical modification with hydroxylamine chloride. Before modified the Polyacrylonitrile (PAN) nanofibers were bonded with two layers Ethylene-Propylene Side By Side (ES) thermal bonded nonwovens to improve its mechanical strength. Subsequently, they were applied to adsorb copper ions. The results of FT-IR spectra and scanning electron microscope indicated that nitrile groups in PAN were partly converted into amidoxime groups and there were no serious cracks on the surface of PAN-amidoxime nanofibers. The adsorption data of Cu (II) ions was fitted roughly with the Langmuir isotherm. The maximal adsorption capacities of Cu (II) ions reached 176 mg/g.

In China, many kinds of natural products extracted from plant and animal were used to treat cancer. Flavonoids extracted from tartary buckwheat and skin peptide purified from rufous-spotted torrent frog had respectively been proved to have anti-tumor activity. In present study, both tartary buckwheat flavonoids and amphibian frog peptides were applied for cell proliferation inhibitory activity against human gastric cancer MGC 80-3 cells using MTT assay. According to the data, the buckwheat flavonoids exhibited much stronger anti-tumor activity than amphibian peptides, and the complex mixture of this two kinds of bioactive compounds still possess anti-tumor activity.

In this research, a kind of nonwoven composite used for the absorption of heavy mental ions has been made. The composite was made of two layers of ES thermal bonded nonwovens as the protective layers and the PAN-amidoxime nanofibers which are prepared through the modification of electrospun PAN nanofibers as the interlayer. The composition was achieved by the ultrasonic bonding method. After the composition the PAN nanofibers were modified by grafting the amidoxime group to PAN. The results of FT-IR spectra and FE-SEM indicated that nitrile groups in PAN were partly converted into amidoxime groups and there were no serious cracks on the surface of PAN-amidoxime nanofibers. The results show that the amidoxime groups have been proved to be grafted to the PAN nanofibers with the percent grafting of 81.6%.