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History

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IWAACE 2017 was successfully taken place on March 10-12, 2017 in Bangkok, Thailand.



Keynote Speeches


Prof.Sivakumar Manickam
 University Of Nottingham, Malaysia

 

Title: Greener Energy-Efficient Cavitation Technology for Thegeneration of Nanomaterials and Nanoemulsions Speech

Abstract: Much effort is currently being devoted to the study of nanomaterials mainly due to their wide variety of applications. Particularly, nanoparticles have generated a large research effort because of their properties which differ markedly from those of their bulk counterpart. Many different approaches have been applied to the fabrication of nano-entity, such as co-precipitation, microemulsion, supercritical sol-gel processing, hydrothermal synthesis, or high energy ball milling. Directed to the problems of these conventional methods, new synthetic methods have received increased attention in recent years. Cavitation, an approach for synthesizing a variety of compounds at milder conditions is already the rage in materials engineering. The major advantage of this new method is that it affords a reliable and facile route for the control of both the synthetic process and nanostructure in advanced materials. Also, this process provides chemical homogeneity and reactivity through atomic level mixing within the precursor system, and phase pure crystalline materials can be prepared by annealing at reduced temperatures. Various advanced materials have been developed and tested for activities using this technology. This presentation will give an overview about the advantages of both ultrasonic and hydrodynamic cavitation in the generation of a diverse range of technologically important nanomaterials and nanoemulsions. With the possibility of large scale and continuous ultrasonic and hydrodynamic cavitational reactors, it is believed to be a promising and a fruitful green process engineering techniques for the generation of nanomaterials and nanoemulsions.


 


Prof.Fusaomi Nagata
Tokyo University of Science, Japan

Title: Preprocessor with Spline Interpolation for Converting Stereolithography into Cutter Location Source Data for Smart Robotic Machining System Speech

Abstract: The developed robotic CAM system provided a simple and effective interface without the need to use any robot language between operators and the machining robot. In this paper, a preprocessor for generating Cutter Location Source data (CLS data) from Stereolithography (STL data) is first proposed for robotic machining. The preprocessor enables to control the machining robot directly using STL data without using any commercially provided CAM system. The STL deals with a triangular representation for a curved surface geometry. The preprocessor allows machining robots to be controlled through a zigzag or spiral path directly calculated from STL data. Then, a smart spline interpolation method is proposed and implemented for smoothing coarse CLS data. The effectiveness and potential of the developed approaches are demonstrated through experiments on actual machining and interpolation.
 


Dr.Diana Iruretagoyena Ferrer
Imperial College London, United Kingdom

 
Title: Carbon supported hydrotalcites as efficient catalysts and adsorbents Speech

Abstract: The high surface area and porosity of some forms of carbons such as graphene and carbon nanotubes have awakened interest on their use as supports in adsorption and heterogeneous catalysis. Additionally, the dispersion of the active phase is relatively easy compared to other supports and they offer the possibility to improve diffusion due to larger intraparticle voids. Among intense research in many disciplines, the utilization of these carbon nanostructures as support frameworks for inorganic particles such as hydrotalcites has emerged as a promising research area. Hydrotalcites (HTs) show great potential as adsorbents for the removal of contaminants such as CO2 and sulphur compounds and also as catalysts mainly due to their basic properties. However, their commercial application requires improvements in capacity/activity and cycle stability/ re-usability. Recently, we have reported that the adsorptive and catalytic properties of HTs can be enhanced significantly by supporting them on multi-walled carbon nanotubes (MWCNTs) and graphene oxide (GO). Unsupported HTs and HT/carbon hybrids were prepared via a co-precipitation technique and the materials were characterised by a range of physicochemical techniques including BET, CO2-TPD, XRD, ICP, STEM and SEM. Our work shows that MWCNTs and GO are efficient supports for HTs, enhancing significantly their adsorption and catalytic properties due to their dispersion in charge-complementary supports, leading to increases in effective HT surface area. This work is particularly relevant for the application of carbon nanostructured based adsorbents/catalysts for pre-combustion CO2 capture processes, desulfurization of liquid and gas streams and condensation reactions such as the self-condensation of acetone.



Prof. Dongfang Yang
Guizhou Minzu University, China
 
Title: Spatial-temporal changes of Cr sources in Jiaozhou Bay Speech

Abstract: Cr pollution in marine bay is one of the environmental issues in many countries and regions, and the understanding of the spatial-temporal variation of Cr sources in marine bay is essential to pollution control. Based on investigation on Cr in surface waters, this paper analyzed distributions and spatial-temporal variations of Cr sources in Jiaozhou Bay, eastern China during 1979-1983. Results showed that for spatial variations, the strong Cr sources were in estuaries of the major inflow rivers (i.e. Haibo River, Licun River and Loushan River), and the source strengths were 4.17-112.30 μg L-1. For temporal variations, the source strengths were changing from moderate stage (1979-1981) to slight stage (1982-1983),whose source strengths were 32.32-112.30 μg L-1 and 4.17-19.76 μg L-1, respectively. In general, the spatial-temporal variations of Cr sources in Jiaozhou Bay were significant, which should be taken into account for the countermeasures for pollution control.

 
Oral Presentation