In this research, the potential of chitosan/Fe3O4/graphene oxide (CS/Fe3O4/GO) nanocomposite for ... more In this research, the potential of chitosan/Fe3O4/graphene oxide (CS/Fe3O4/GO) nanocomposite for efficient removal of Fe(III) a cationic metal ion from aqueous solutions was investigated. The synthesized CS/Fe3O4/GO was characterized by XRD, VSM and SEM techniques. Also, the various parameters affecting Fe3+ removal were investigated. Fe(III) adsorption equilibrium data were fitted well to the Langmuir isotherm and the maximum monolayer capacity (qmax), was calculated from the Langmuir as 6.5 mg.g-1. The results show that, CS/Fe3O4/GO nanocomposite, can be used as a cheap and efficient adsorbent for removal of heavy metal ions from aqueous solutions.
Antimony-doped tin oxide (ATO) nanoparticles (NPs) (Sb-doped content 3%, 10%, and 15%) were synth... more Antimony-doped tin oxide (ATO) nanoparticles (NPs) (Sb-doped content 3%, 10%, and 15%) were synthesized by the (2 l autoclave, medium-scale) solvothermal method followed by sintering at various temperatures (500°C, 800°C, 900°C and 1000°C) so they would crystallize. The particle size increased from several to tens of nanometers with the increase of sintered temperature from 500°C to 1000°C, sharply from 800°C to 1000 °C; ~30 g of final product was received for each experiment. More interestingly, the crystallinity of the as-synthesized ATO was also increased with the increasing Sb doped content from 3% to 15%. The ATO NPs were coated onto glass substrates and then sintered at 500°C, which effectively prevented transmittance of infrared (IR) wavelengths (>800 nm) with 10% wt Sb-doped content, which is useful for thermal insulated glass coating application.
With the rise of the internet, there came the rise of online advertising. It in turn has been pla... more With the rise of the internet, there came the rise of online advertising. It in turn has been playing a growing part in shaping and supporting the development of the Web. In contextual advertising, ad messages are displayed related to the content of the target page. It leads to the problem in information retrieval community: how to select the most matching ad messages given the content of a web page. While retrieval algorithms, such as determining the similarities by calculating overlapping words, can propose somewhat related ad messages, the problem of contextual matching requires a higher precision. As words can have multiple meanings and there are many unrelated words in a web page, it can lead to the miss-match. To deal with this problem, we propose another approach to contextual advertising by taking advantage of large scale external datasets. Using a hidden topic analysis model, we add analyzed topics to each web page and ad message. By expanding them with hidden topics, we ha...
In this research, the potential of chitosan/Fe3O4/graphene oxide (CS/Fe3O4/GO) nanocomposite for ... more In this research, the potential of chitosan/Fe3O4/graphene oxide (CS/Fe3O4/GO) nanocomposite for efficient removal of Fe(III) a cationic metal ion from aqueous solutions was investigated. The synthesized CS/Fe3O4/GO was characterized by XRD, VSM and SEM techniques. Also, the various parameters affecting Fe3+ removal were investigated. Fe(III) adsorption equilibrium data were fitted well to the Langmuir isotherm and the maximum monolayer capacity (qmax), was calculated from the Langmuir as 6.5 mg.g-1. The results show that, CS/Fe3O4/GO nanocomposite, can be used as a cheap and efficient adsorbent for removal of heavy metal ions from aqueous solutions.
Antimony-doped tin oxide (ATO) nanoparticles (NPs) (Sb-doped content 3%, 10%, and 15%) were synth... more Antimony-doped tin oxide (ATO) nanoparticles (NPs) (Sb-doped content 3%, 10%, and 15%) were synthesized by the (2 l autoclave, medium-scale) solvothermal method followed by sintering at various temperatures (500°C, 800°C, 900°C and 1000°C) so they would crystallize. The particle size increased from several to tens of nanometers with the increase of sintered temperature from 500°C to 1000°C, sharply from 800°C to 1000 °C; ~30 g of final product was received for each experiment. More interestingly, the crystallinity of the as-synthesized ATO was also increased with the increasing Sb doped content from 3% to 15%. The ATO NPs were coated onto glass substrates and then sintered at 500°C, which effectively prevented transmittance of infrared (IR) wavelengths (>800 nm) with 10% wt Sb-doped content, which is useful for thermal insulated glass coating application.
With the rise of the internet, there came the rise of online advertising. It in turn has been pla... more With the rise of the internet, there came the rise of online advertising. It in turn has been playing a growing part in shaping and supporting the development of the Web. In contextual advertising, ad messages are displayed related to the content of the target page. It leads to the problem in information retrieval community: how to select the most matching ad messages given the content of a web page. While retrieval algorithms, such as determining the similarities by calculating overlapping words, can propose somewhat related ad messages, the problem of contextual matching requires a higher precision. As words can have multiple meanings and there are many unrelated words in a web page, it can lead to the miss-match. To deal with this problem, we propose another approach to contextual advertising by taking advantage of large scale external datasets. Using a hidden topic analysis model, we add analyzed topics to each web page and ad message. By expanding them with hidden topics, we ha...
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