https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Mesoporous Biopolymer Architecture Enhanced the Adsorption and Selectivity of Aqueous Heavy-Metal Ions https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45366 Cu (∼95.01 to 90.53%) > Cd (∼92.5 to 55.25%) > Ni (∼80.85 to 50.6%), even in the presence of 0.01/0.001 M of CaCl2 and Na2SO4 as background electrolytes and charged organic molecule under an environmentally relevant concentration (200 μg/L). The maximum adsorption capacities of Ni, Cd, Cu, and Pb were calculated as 2.85 ± 0.08, 6.96 ± 0.31, 16.87 ± 1.50, and 26.49 ± 2.04 mg/g, respectively. HNT-BC@Alg has fast sorption kinetics and maximum adsorption capacity within a short contact time (∼2 h). Energy-dispersive X-ray spectroscopy (EDS) elemental mapping exhibited that adsorbed heavy metals co-distributed with Ca, Si, and Al. The reduction of surface area, pore volume, and pore area of HNT-BC@Alg (after sorption of heavy metals) confirms that mesoporous surface (2–18 nm) supports diffusion, infiltration, and interaction. However, a lower range of mesoporous diameter of the adsorbent is more suitable for the adsorption of heavy-metal ions. The adsorption isotherm and kinetics fitted well with the Langmuir isotherm and the pseudo-second-order kinetic models, demonstrating the monolayer formation of heavy-metal ions through both the physical sorption and chemical sorption, including pore filling, ion exchange, and electrostatic interaction.]]> Wed 20 Mar 2024 15:10:50 AEDT ]]> Availability of arsenic in human milk in women and its correlation with arsenic in urine of breastfed children living in arsenic contaminated areas in Bangladesh https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:16780 Wed 11 Apr 2018 09:14:25 AEST ]]> In-situ detection of LiMn₂O₄ dissolution during electrochemical cycling by https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48889 Mon 29 Jan 2024 18:53:21 AEDT ]]> Gas atmosphere effects over the anode compartment of a tubular direct carbon fuel cell module https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46626 2 atmosphere when compared with a N₂atmosphere, where mass transport limitations in the anode compartment and the additional two-electron oxidation pathway from CO contribute. This hypothesis is verified by comparing the slurry arrangement to a solid working anode where mass transport is not required. In order to maximize the carbon utilization efficiency, operating below the thermodynamic temperature limit for reverse Boudouard gasification (700 °C) is recommended with agitation in slurry-based systems. For a maximum power output, operating under CO₂ at higher temperatures (>800 °C) and passing the CO containing flue gas over an oxygen reduction cathode achieve optimal results.]]> Mon 28 Nov 2022 13:29:36 AEDT ]]>