Researchers developed a light-responsive spiropyran and multi-walled carbon nanotube hybrid that accelerated Bisphenol A degradation under simulated solar irradiation and generated reactive oxygen species linked to pollutant breakdown. The catalyst also reduced cytotoxicity in MCF-7 cell tests and retained its crystalline structure across four reuse cycles, though its degradation efficiency declined gradually.
Researchers developed an n-type, scaffolded Si–ZnxMg1-xO photocatalyst that produced hydrogen from water without sacrificial electron donors under 100 W tungsten-lamp irradiation. By tuning the Zn/Mg ratio and associated defect states, the best-performing Si–Zn0.3Mg0.7O composition reached a hydrogen evolution rate of 1,954 µmol h?¹ cm?² and an apparent quantum yield of 36.47% at 600 nm.
A research team has developed a fluorescent probe that changes from red to green as it detects uranyl ions, a form of uranium that can contaminate water. Made from europium, zinc and an organic ligand, the probe measured uranyl concentrations down to 51 nanomolar in laboratory tests. A smartphone camera could also read the color change, suggesting a route toward portable water monitoring where laboratory instruments are unavailable. Tests with lake water and seawater showed promising accuracy, although broader testing in complex environmental samples is still needed.
A team co-led by researchers at the University of California San Diego has developed a new way to make perovskite solar cells — a promising next-generation solar technology — more efficient and durable.
Uranium monitoring is essential for managing nuclear materials and assessing contamination in aquatic environments.
A Cambridge co-operative that has developed technology to help lettuces grow in space is celebrating a major anniversary in style.
Hydrogen is a promising low-carbon energy carrier, but its low volumetric energy density makes storage and transportation difficult. Methanol offers an attractive alternative because it is liquid under ambient conditions, contains 12.5 wt% hydrogen and can be transported using existing fuel infrastructure.
A UNSW project with Sydney Water and Pacific Bio is exploring whether algae that has already helped clean wastewater can be put to work again, this time giving discarded textiles a new life.
The study models light-duty EV and PHEV batteries across Europe through 2045, linking vehicle adoption, operating lifetimes, used-vehicle trade, evolving chemistries, second-life storage, and recycling efficiencies to estimate the recoverable amounts of lithium, cobalt, nickel, and manganese. It projects a sharp rise in recoverable material from the late 2020s, but recycled-content targets remain difficult to meet, especially for cobalt, and high reuse reduces the cumulative material available for recycling by about 20%–25% over the study period.
This study models how India’s expanding electric vehicle fleet could change demand for and requirements of lithium, nickel, cobalt, manganese, and graphite through 2060 under several deployment and battery-chemistry scenarios. Under the baseline scenario, EV battery demand reaches about 965 GWh by 2060, while recycling could reduce cumulative lithium demand by up to 54% and offset much of the demand for cobalt and manganese.
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