https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:49070 Wed 28 Feb 2024 14:49:35 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:47170 Wed 14 Dec 2022 15:48:51 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42988 Wed 13 Mar 2024 11:24:24 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:34454 Wed 13 Mar 2019 13:12:16 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:32892 Wed 08 Aug 2018 09:58:30 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29971 Wed 04 Sep 2019 10:24:35 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:41493 Tue 25 Oct 2022 10:36:41 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:43353 400 nm) and solar light irradiation. The role of hydrogen peroxide to enhance the catalyst’s efficiency was examined. The reaction pathway of complete mineralization was investigated by monitoring the temporal evolution of reaction intermediates and low molecular weight organic acids (LMWOA) as final products in solution. These LMWOAs are oxidized eventually to inorganic ions such a nitrate, sulfate, oxalate etc, which are confirmed using GC–MS, UV–Vis and Ion Chromatographic analyses. The optimized conditions of photocatalytic degradation were obtained for degradation under different light source. The Fe-doped TiO2 showed high dye degradation efficiency under both UV (100%), visible (100%) and solar light (90%) which distinguishes Fe-doped TiO2 from materials in literature that are only efficient in particular light source for dye degradation. Furthermore, the Fe doped titania photocatalysts are stable and can maintain performance up to 6 recycle use. Reaction kinetics for UV and solar light induced degradation followed first order reaction whereas visible light degradation followed a zero-order reaction.]]> Thu 15 Sep 2022 15:32:33 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:43347 Thu 15 Sep 2022 15:25:54 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:30285 Thu 09 Dec 2021 11:02:06 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:51476 Thu 07 Sep 2023 10:45:46 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29810 Pb > Zn. There is a negative correlation between the concentration of NaCl and adsorption capacity of ATHP, yet ATHP still exhibited excellent adsorption having an adsorption capacity of 19.35, 15.16, 6.425 mg/g when the concentration of NaCl was 0.6 mol/L. The free energy (E) was 12.33, 10.70, and 14.74 kJ/mol for Pb(II), Cu(II), and Zn(II), respectively. An adsorption mechanism based on ion exchange between heavy metal ions and H⁺ in the ATHP is proposed. Furthermore, the used ATHP was regenerated by HCl solution and the adsorbent was used repeatedly.]]> Sat 24 Mar 2018 07:40:51 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29268 Sat 24 Mar 2018 07:39:17 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:30122 Sat 24 Mar 2018 07:37:58 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29557 Sat 24 Mar 2018 07:33:11 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29775 80%) samples found above BIS and WHO permissible limit, while 28% samples exceeded the previous WHO drinking water guideline (400 µg/L) for manganese (Mn). In dietary food grains As followed the sequence as rice > wheat > maize. The estimated daily intake by individual of As, Mn, Ni, Cd, Co, Pb, Zn and Cr from drinking water and dietary food grains were 169,14582, 474, 19, 26, 1449, 12955 and 882 µg/ kg. The Health Risk Index (HRI) were >1 for As in drinking water, vegetables and rice indicated the potential health risk to the residents of the study area. However, HRI <1 for wheat and maize indicate a relative absence of health risks associated with their ingestion.]]> Sat 24 Mar 2018 07:30:31 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26714 Pseudomonas sp., Pseudomonas putida TPHK-1 and Pseudomonas aeruginosa TPHK-4, were more efficient in degrading high concentrations of the hydrocarbons than the other two strains, Stenotrophomonas maltophilia TPHK-2 and Acenitobacter sp. TPHK-3. P. putida TPHK-1 exhibited tolerance to very high concentrations of heavy metals such as cadmium, lead, zinc and copper. The innate ability of P. putida TPHK-1, as evidenced by the amplified genes alkB1 and alkB2 that encode alkane hydroxylases, and cat12o and cat23o coding for catechol dioxygenase, in degrading diesel oil in the presence of heavy metals is far greater than that of the strains reported in the literature. Heavy metal tolerance coupled with rapid degradation of hydrocarbons, even at high concentrations, suggests that P. putida TPHK-1 has a great potential in remediating soils contaminated with mixtures of hydrocarbons and heavy metals.]]> Sat 24 Mar 2018 07:26:23 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:24551 via an assembly of dye-FS-AgNP-GO. Using this assembly, we successfully detected FSs including pentadecafluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), and 1H,1H,2H,2H-perfluorooctanesulfonic acid (6:2FTS), with a limit-of-detection (LOD) of ~50 ppb (~120 nM) for PFOA.]]> Sat 24 Mar 2018 07:11:30 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:24004 Sat 24 Mar 2018 07:10:21 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:30571 Mon 23 Sep 2019 10:29:19 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:44591 Mon 17 Oct 2022 14:25:35 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45759 Fri 04 Nov 2022 11:02:02 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29587 Fri 01 Sep 2017 12:27:49 AEST ]]>