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Development of a Novel Photoelectrochemical Method for Ultra-sensitive and Selective Determination of Organic Pollutants. Rapidly deteriorating environmental conditions have caused worldwide fresh water shortage problems. For Australia, this is an urgent issue due to our limited fresh water resources. Globally, all levels of governments and legislative authorities have attempted to adopt stricter environmental legislation and better water resource management practice to address these urgent prob ....Development of a Novel Photoelectrochemical Method for Ultra-sensitive and Selective Determination of Organic Pollutants. Rapidly deteriorating environmental conditions have caused worldwide fresh water shortage problems. For Australia, this is an urgent issue due to our limited fresh water resources. Globally, all levels of governments and legislative authorities have attempted to adopt stricter environmental legislation and better water resource management practice to address these urgent problems. However, these priorities cannot be achieved until large scale and accurate environmental data are available. The success of the project would result in a new environmental monitoring system capable of online, real-time monitoring of environmental water quality, which will directly benefit water resource management practice in Australia. Read moreRead less
Nanostructures of Titanium Dioxide and Titanates by Wet-chemistry. One-dimensional (1D) nanoparticulates of titanium dioxide (TiO2) and titanate synthesized by wet-chemistry approaches are new advanced materials of unusual properties. This project will investigate the formation and phase transition mechanism of these 1D particulates by various techniques. With such knowledge, we can effectively control the morphology on a scale of nanometers, and tailor the energy gap of these materials. This wi ....Nanostructures of Titanium Dioxide and Titanates by Wet-chemistry. One-dimensional (1D) nanoparticulates of titanium dioxide (TiO2) and titanate synthesized by wet-chemistry approaches are new advanced materials of unusual properties. This project will investigate the formation and phase transition mechanism of these 1D particulates by various techniques. With such knowledge, we can effectively control the morphology on a scale of nanometers, and tailor the energy gap of these materials. This will significantly influence the photosemiconductive photocatalytic and lithium ions insertion behaviours of the particles so that advanced materials for solar energy conversion, photocatalysts for decomposing organic pollutants in environment, eletrode materials of lithium batteries can be developed.Read moreRead less
Efficient One-Dimensional Photocatalysts from Titanate Nanofibres and Nanotubes. This project will deliver important fundamental knowledge for the development of high-value products of titania, and thus will contribute directly to the priority goal of transforming the existing titania industry through value adding and export on the international market. This research will lead to new industries and will create employment opportunities for Australians. It will also serve to train young scientists ....Efficient One-Dimensional Photocatalysts from Titanate Nanofibres and Nanotubes. This project will deliver important fundamental knowledge for the development of high-value products of titania, and thus will contribute directly to the priority goal of transforming the existing titania industry through value adding and export on the international market. This research will lead to new industries and will create employment opportunities for Australians. It will also serve to train young scientists with a real appreciation of materials research and engineering, contributing to the overall competitiveness and productivity of Australian R&D. This project would lead to advances in important fields of clean energy, environment remediation and advanced materials processing in Australia.Read moreRead less
Reactions of Nanoparticles of Metal Oxides and Hydrous Oxides and their Applications in Photocatalysts and Electrode Materials. Australia is a world-leading producer of raw materials of many metallic elements, most of which are exported at low-values. This project will yield important knowledge in new synthetic techniques for making nanostructures of metal oxides. These tiny particles already have a large worldwide market, but the discovery of particles with superior properties or new applicatio ....Reactions of Nanoparticles of Metal Oxides and Hydrous Oxides and their Applications in Photocatalysts and Electrode Materials. Australia is a world-leading producer of raw materials of many metallic elements, most of which are exported at low-values. This project will yield important knowledge in new synthetic techniques for making nanostructures of metal oxides. These tiny particles already have a large worldwide market, but the discovery of particles with superior properties or new applications could lead to new industries and high-value exports. This project aims to devise novel photocatalysts for solar energy conversion and environmental protection, and electrode materials for lithium batteries. It will contribute to the overall competitiveness and productivity of Australian R&D by advancing scientific knowledge and training young researchers.Read moreRead less
Development of Nanostructured TiO2 Electrodes for Photoelectrocatalytic Degradation of Organic and Microbial Pollutants in Wastewater. Australia is one of the driest continents and re-use of water/wastewater has been an urgent issue. Photoelectrocatalytic oxidation processes based on nanostructured TiO2 electrode are able to mineralize common aquatic organic and microbial pollutants. The proposed technology has the advantages of strong oxidation power and cheap production cost, and it is chemi ....Development of Nanostructured TiO2 Electrodes for Photoelectrocatalytic Degradation of Organic and Microbial Pollutants in Wastewater. Australia is one of the driest continents and re-use of water/wastewater has been an urgent issue. Photoelectrocatalytic oxidation processes based on nanostructured TiO2 electrode are able to mineralize common aquatic organic and microbial pollutants. The proposed technology has the advantages of strong oxidation power and cheap production cost, and it is chemically stable, robust under UV illumination, and most importantly, environmentally friendly. The success of the project can place Australia in a leading position of developing cutting-edge TiO2 nano-material-based photoelectrochemical technologies for environmental wastewater treatment and drinking water disinfection. Read moreRead less
Composite Mesoporous Solids of TiO2 Nano-Crystals and Silicate as Photo-catalysts for Degradation of Organic Contaminants in Water. TiO2 photo-catalysis is a promising advanced technique for breaking down organic contaminants and bacteria in water and air. This project will develop a novel class of photo-catalysts, the composite meosporous compounds of anatase and layered clay, by combining templated synthesis and pillaring techniques. They will exhibit a high photo-catalytic efficiency with sup ....Composite Mesoporous Solids of TiO2 Nano-Crystals and Silicate as Photo-catalysts for Degradation of Organic Contaminants in Water. TiO2 photo-catalysis is a promising advanced technique for breaking down organic contaminants and bacteria in water and air. This project will develop a novel class of photo-catalysts, the composite meosporous compounds of anatase and layered clay, by combining templated synthesis and pillaring techniques. They will exhibit a high photo-catalytic efficiency with superior properties for practical operations because of the framework of large porosity arising from the arrangement of discrete anatase nano-particles within the silicate layers. The project involves mostly fundamental research into material synthesis, colloid and surface chemistry and photo-catalysis, and aims to develop advanced techniques for water treatment.Read moreRead less
Organophosphate pesticide degradation: evolved enzymes and biomimetics for bioremediation and medicine. Organophosphate (OP) pesticides are an indispensable part of modern agriculture - their use results in dramatically increased crop yields. However, they are toxic and can damage the environment and cause significant health problems. Enzymes are currently being used to treat runoff water that is contaminated with OPs. The same enzymes also have the potential to aid in the treatment of OP poison ....Organophosphate pesticide degradation: evolved enzymes and biomimetics for bioremediation and medicine. Organophosphate (OP) pesticides are an indispensable part of modern agriculture - their use results in dramatically increased crop yields. However, they are toxic and can damage the environment and cause significant health problems. Enzymes are currently being used to treat runoff water that is contaminated with OPs. The same enzymes also have the potential to aid in the treatment of OP poisoning. However, OP degrading enzymes could be improved in many ways - we will evolve these enzymes to enhance their catalytic properties - to enable them to act more efficiently on an increased number of OPs. Read moreRead less
Darwin Harbour corals as environmental data archives and bio-monitors. The forecast rapid population growth and industrial development of the Darwin Harbour catchment necessitates research into novel environmental monitoring techniques to aid the sustainable management of the Harbours resources. This project will develop a powerful and cost-effective bio-monitoring system by using chemical data stored in yearly growth bands of coral skeletons stretching back at least two centuries. Such data wil ....Darwin Harbour corals as environmental data archives and bio-monitors. The forecast rapid population growth and industrial development of the Darwin Harbour catchment necessitates research into novel environmental monitoring techniques to aid the sustainable management of the Harbours resources. This project will develop a powerful and cost-effective bio-monitoring system by using chemical data stored in yearly growth bands of coral skeletons stretching back at least two centuries. Such data will form a comparative baseline against which present and future coral data on pollutants released by urban, industrial and other developments can be assessed.Read moreRead less
Effect of cane sugar juice composition on scaling rate and scale composition in sugar mills. The Australia sugar industry produces 1100 GWh of renewable electricity annually, abating ~1.1 M tonnes of CO2-equivalent of greenhouse gases. This can be increased if the juice evaporation performance, which largely determines the energy efficiency of the sugar factory, can be improved through reduced fouling of evaporators. This project will investigate the effect of juice composition on fouling of sug ....Effect of cane sugar juice composition on scaling rate and scale composition in sugar mills. The Australia sugar industry produces 1100 GWh of renewable electricity annually, abating ~1.1 M tonnes of CO2-equivalent of greenhouse gases. This can be increased if the juice evaporation performance, which largely determines the energy efficiency of the sugar factory, can be improved through reduced fouling of evaporators. This project will investigate the effect of juice composition on fouling of sugar factory evaporators so that a model to predict scale type and scale propensity can be developed. This will enable the development of better scale control strategies, resulting in reduced energy usage and reduced usage of the hazardous and polluting chemicals required to remove scale.Read moreRead less
Developing a new approach to aquatic pollutant assessment combining time integrated sampling with toxicity testing. Present approaches for monitoring risk of aquatic pollutants are limited to grab sample analysis for specific pollutants using target values and/or ecotoxicological assessment of population biomarkers. This collaborative research, involving 3 universities and 10 industry partners, aims to develop and evaluate a novel approach combining extraction of pollutants using time integrated ....Developing a new approach to aquatic pollutant assessment combining time integrated sampling with toxicity testing. Present approaches for monitoring risk of aquatic pollutants are limited to grab sample analysis for specific pollutants using target values and/or ecotoxicological assessment of population biomarkers. This collaborative research, involving 3 universities and 10 industry partners, aims to develop and evaluate a novel approach combining extraction of pollutants using time integrated passive samplers and toxicological evaluation of extracts using a range of rapid in-vitro and in-vivo assays. The project will produce cost-effective tools for highly sensitive assessment of pollutant effects and ultimately facilitate intervention guidelines based on mixture toxicity.Read moreRead less