Toluene is a component of volatile organic compounds which need to be converted into non-poisonous one. Thus, we study the spinel-typed catalyst as NiCo2O4 for total oxidation of toluene because the advantage of spinel catalyst is multi- defective. Based on the sol-gel method, the catalysts NiCo2O4 were successfully prepared with different ratios of Ni/Co. The characteristic properties of catalysts were evaluated by XRD, BET, H2-TPR and EPR experiments. Amongst these ratios, the catalyst with ratio Ni/Co as 0.5 had the best activity in the total oxidation of toluene, as 100% conversion reached at 250 oC.
We report herein a new two-dimensional zirconium-based luminescent coordination polymer exhibiting selective fluorescence responses towards a variety of volatile organic compounds upon exposure in the vapor phase.
Novel design of optical sensor based on two-dimensional photonic crystals for the detection of volatile organic compounds that can infect human health