Synthesis of TiO2-incorporated activated carbon as an effective Ion electrosorption material.

Efficient, chemically stable and cheap materials are highly required as electrodes in the ions-electrosorption-based technologies such as supercapacitors and capacitive deionization desalination. Herein, facile preparation of titanium oxide-incorporated activated carbon using cheap precursors is introduced for this regard. The proposed material was synthesized using the solubility power of the subcritical water to partially dissolve titanium oxide particles to be adsorbable on the surface of the activated carbon. Typically, an aqueous suspension of commercial TiO2 particles (P25) and activated carbon was autoclaved at 180°C for 10 h. The physiochemical characterizations indicated high and uniform distribution of the inorganic material on the surface of the activated carbon. The ionic electrosorption capacity was highly improved as the specific capacitance increased from 76 to 515 F/g for the pristine and modified activated carbon, respectively at 5 mV/s in 0.5 M sodium chloride solution. However, the weight content of titanium oxide has to be adjusted; 0.01% is the optimum value. Overall, the study introduces novel and simple one-pot procedure to synthesis powerful titanium oxide-based functional materials from cheap solid titanium precursor without utilization of additional chemicals

Synthesis of TiO2-incorporated activated carbon as an effective Ion electrosorption material

Efficient, chemically stable and cheap materials are highly required as electrodes in the ions-electrosorption-based technologies such as supercapacitors and capacitive deionization desalination. Herein, facile preparation of titanium oxide-incorporated activated carbon using cheap precursors is introduced for this regard. The proposed material was synthesized using the solubility power of the subcritical water to partially dissolve titanium oxide particles to be adsorbable on the surface of the activated carbon. Typically, an aqueous suspension of commercial TiO2 particles (P25) and activated carbon was autoclaved at 180°C for 10 h. The physiochemical characterizations indicated high and uniform distribution of the inorganic material on the surface of the activated carbon. The ionic electrosorption capacity was highly improved as the specific capacitance increased from 76 to 515 F/g for the pristine and modified activated carbon, respectively at 5 mV/s in 0.5 M sodium chloride solution. However, the weight content of titanium oxide has to be adjusted; 0.01% is the optimum value. Overall, the study introduces novel and simple one-pot procedure to synthesis powerful titanium oxide-based functional materials from cheap solid titanium precursor without utilization of additional chemicals

A case for formal education in the technical, vocational education and training (TVET) sector for climate change adaptation and disaster risk reduction in the Pacific Islands region.

The Pacific Small Island Developing States (P-SIDS) are extremely vulnerable to climate change impacts and natural hazards due to their geographical location, topography and major economic sectors (agriculture, tourism and fisheries). The sustainable development and even the mere existence of these P-SIDS are under threat. Regionally, leaders are aware of this vulnerability and many related projects have been conducted on a national and regional basis by different stakeholders. Limited availability of appropriate formal training related to climate change adaptation and disaster risk reduction in the region has led to: lack of locally trained people to implement and monitor projects; use of donor funds to support foreign experts; unsuccessful projects causing maladaptation or increasing vulnerability and risk. Findings from a regional needs and gap analysis indicate that formal qualifications which account for local contexts are required to build national capacity to: accurately monitor and assess impacts of climate change and natural hazards; identify solutions to reduce these risks; and plan, manage and implement risk reduction projects to reduce damage and losses. This paper makes the case for the introduction of formal and accredited qualifications in climate change adaptation and disaster risk reduction in the technical, vocational education and training sector to support climate change adaptation and disaster risk reduction in the Pacific Islands Region (PIR). The development of regionally-specific quality assured qualifications in this context is ground breaking and is the impetus for the European Union Pacific Technical Vocational Education and Training in Sustainable Energy and Climate Change Adaptation Project (EU PacTVET). Responsive and accredited regional qualifications should ensure that the interventions managed by those having these qualifications are really supporting sustainable development

Establishing the need for and sustainability of accredited and quality assured TVET qualifications for climate change adaptation and disaster risk management in the Pacific islands region

The Pacific Small Island Developing States (P-SIDS) are extremely vulnerable to climate change impacts and natural hazards due to their geographical location, topography and major economic sectors (agriculture, tourism and fisheries). The sustainable development and even the mere existence of these P-SIDS are under threat. Regionally, leaders are aware of this vulnerability and many climate change adaptation and risk reduction projects have been conducted by different stakeholders. Limited availability of appropriate training in the region has led to: lack of locally trained people to implement and monitor projects; use of donor funds to support foreign experts; unsuccessful projects causing maladaptation or increasing vulnerability and risk. A regional needs and gap analysis has identified that formal qualifications which account for local contexts are required to build national capacity to: accurately monitor and assess impacts of climate change and natural hazards; identify solutions to reduce these risks; and plan, manage and implement risk reduction projects to reduce damage and losses. The development of regionally-specific quality assured qualifications in this context is ground breaking and is the impetus for the European Union Pacific Technical Vocational Education and Training in Sustainable Energy and Climate Change Adaptation Project (EU PacTVET). Structures for quality assurance of regional qualifications as well as the “regionalization” and mutual recognition of qualifications need to be put into place. Responsive and accredited regional qualifications should ensure that the interventions managed by those having these qualifications are really supporting sustainable development, thereby: limiting the impacts of climate change and natural hazards; empowering locals to become involved actors in their own development; and limiting maladaptation and generation of new risks

Process Optimization of <i>Tinospora cordifolia</i> Extract-Loaded Water in Oil Nanoemulsion Developed by Ultrasound-Assisted Homogenization

Nanoemulsions are gaining interest in a variety of products as a means of integrating easily degradable bioactive compounds, preserving them from oxidation, and increasing their bioavailability. However, preparing stable emulsion compositions with the desired characteristics is a difficult task. The aim of this study was to encapsulate the Tinospora cordifolia aqueous extract (TCAE) into a water in oil (W/O) nanoemulsion and identify its critical process and formulation variables, like oil (27–29.4 mL), the surfactant concentration (0.6–3 mL), and sonication amplitude (40% to 100%), using response surface methodology (RSM). The responses of this formulation were studied with an analysis of the particle size (PS), free fatty acids (FFAs), and encapsulation efficiency (EE). In between, we have studied a fishbone diagram that was used to measure risk and preliminary research. The optimized condition for the formation of a stable nanoemulsion using quality by design was surfactant (2.43 mL), oil concentration (27.61 mL), and sonication amplitude (88.6%), providing a PS of 171.62 nm, FFA content of 0.86 meq/kg oil and viscosity of 0.597 Pa.s for the blank sample compared to the enriched TCAE nanoemulsion with a PS of 243.60 nm, FFA content of 0.27 meq/kg oil and viscosity of 0.22 Pa.s. The EE increases with increasing concentrations of TCAE, from 56.88% to 85.45%. The RSM response demonstrated that both composition variables had a considerable impact on the properties of the W/O nanoemulsion. Furthermore, after the storage time, the enriched TCAE nanoemulsion showed better stability over the blank nanoemulsion, specially the FFAs, and the blank increased from 0.142 to 1.22 meq/kg oil, while TCAE showed 0.266 to 0.82 meq/kg