Portable Bulk-Water Disinfection by Live Capture of Bacteria with Divergently Branched Porous Graphite in Electric Fields.

Easy access to clean water is essential to functioning and development of modern society. However, it remains arduous to develop energy-efficient, facile, and portable water treatment systems for point-of-use (POU) applications, which is particularly imperative for the safety and resilience of society during extreme weather and critical situations. Here, we propose and validate a meritorious working scheme for water disinfection via directly capturing and removing pathogen cells from bulk water using strategically designed three-dimensional (3D) porous dendritic graphite foams (PDGFs) in a high-frequency AC field.

Portable Low-Pressure Solar Steaming-Collection Unisystem with Polypyrrole Origamis.

Solar steaming has emerged as a promising green technology that can address the global issue of scarcity of clean water. However, developing high-performance, cost-effective, and manufacturable solar-steaming materials, and portable solar steaming-collection systems for individuals remains a great challenge. Here, a one-step, low-cost, and mass-producible synthesis of polypyrrole (PPy) origami-based photothermal materials, and an original portable low-pressure controlled solar steaming-collection unisystem, offering synergetic high rates in both water evaporation and steam collection, are reported.

Printable nanostructured silicon solar cells for high-performance, large-area flexible photovoltaics.

Nanostructured forms of crystalline silicon represent an attractive materials building block for photovoltaics due to their potential benefits to significantly reduce the consumption of active materials, relax the requirement of materials purity for high performance, and hence achieve greatly improved levelized cost of energy. Despite successful demonstrations for their concepts over the past decade, however, the practical application of nanostructured silicon solar cells for large-scale implementation has been hampered by many existing challenges associated with the consumption of the entire wafer or expensive source materials, difficulties to precisely control materials properties and doping characteristics, or restrictions on substrate materials and scalability. Here we present a highly integrable materials platform of nanostructured silicon solar cells that can overcome these limitations.

Intrinsic Peroxidase Catalytic Activity of Fe S Nanowires Templated from [Fe S ]/Diethylenetriamine Hybrid Nanowires.

Iron sulfide compounds are emerging as an important family of functional materials owing to their important properties and their applications in different technical fields. Well-defined Fe S nanowires templated by thermal decomposition of [Fe S ]/diethylenetriamine hybrid nanowires under an argon atmosphere are reported. As-prepared Fe S nanowires show typical Michaelis-Menten kinetics and good affinity to both H O and 3,3',5,5'-tetramethylbenzidine.