Xuzhou Institute of Technology

About: Xuzhou Institute of Technology is a education organization based out in Xuzhou, China. It is known for research contribution in the topics: Catalysis & Computer science. The organization has 1696 authors who have published 1521 publications receiving 13541 citations.

Fuel ethanol production from corncob using dilute acid pretreatment and separated saccharification and fermentation by fed-batch strategy

Abstract: The aim of this study was to achieve the optimum process parameters for fuel ethanol production from corncob. After the optimization of orthogonal experiment, the process configuration including dilute acid pretreatment and separated saccharification and fermentation (SHF) by fed-batch strategy was obtained. The optimum conditions of pretreatment were that corncob was treated with 1.1% sulphuric acid and solid-to-liquid ratio=l:8 at 120°C for 3hours. After delignification with alkaline, water insoluble solid of 180g·L^-1 were hydrolyzed with cellulase loading of FPA (IU·mL^-1): CBA (IU·mL^-1)=20:7 to per gram substrate at 48 °C and initial pH5.0. The maximum ethanol concentration from enzymatic hydrolysates fermented by Zymomonas mobilis at 35°C for 48hours reached 57.8g·L^-1.

Nanocrystals of Co2+‐Doped MgGa2O4: Preparation by a Low‐Temperature Combustion Method and Optical Properties

Abstract: Co 2+ -doped MgGa 2 O 4 nanocrystals were prepared at 500 °C by a low-temperature combustion method without any further calcination. Powder X-ray diffraction (XRD) indicated that the only crystalline phase in the product was MgGa 2 O 4 with a grain size of 33-36 nm. Scanning electron microscopy (SEM) showed that the products contained pores formed by the gases evolved during the combustion reaction. The excitation and emission spectra of the nanocrystalline powders in the visible and near infrared regions were characteristic of tetrahedral Co 2+ ions, suggesting that Co 2+ ions replaced tetrahedral Mg 2+ ions in the MgGa 2 0 4 crystals. We assigned the visible and near infrared luminescent bands to the spin-allowed 4 T 1 ( 4 P) → 4 A 2 ( 4 F) and 4 T 1 ( 4 P) → 4 T 2 ( 4 F) transitions.

Active multiple plasmon-induced transparencies with detuned asymmetric multi-rectangle resonators

Abstract: The phenomenon of plasmon-induced transparency (PIT) is realized in surface plasmon polariton waveguide at the visible and near-infrared ranges. By adding one and two resonant cavities, the PIT peak(s) was (were) achieved due to destructive interference between the side-coupled rectangle cavity and the bus waveguide. The proposed structures were demonstrated by the finite element method. The simulation results showed that for three rectangle resonators system, not only can we manipulate each single PIT window, but also the double PIT windows simultaneously by adjusting one of the geometrical parameters of the system; for four rectangle resonators system, by changing the widths, the lengths and the refractive index of three cavities simultaneously, we would realize treble PIT peaks and induce an off-to-on PIT optical response. Our novel plasmonic structures and the findings pave the way for new design and engineering of highly integrated optical circuit such as nanoscale optical switching, nanosensor and wavelength-selecting nanostructure.

Preparation and Recognition Performance of Molecularly Imprinted Polymers for Cadmium with Surface-Imprinting Technique

Abstract: A new Cd (II) ion-imprinted polymer (Cd (II)-IIP), which can be used for selective adsorption of Cd (II) from aqueous solutions, was successfully prepared based on silica gel particles with the help of surface molecular imprinting technology. The adsorption kinetic curve, adsorption isotherm and selective adsorption were measured by static method. The adsorption kinetics of IIPs for Cd (II) reached the equilibrium at about 10 min. The maximum adsorption capacity was 29.36 mg/g, and the IIPs had much higher adsorption quantity than NIPs. Competitive adsorption studies showed that Cd (II)-IIP offers the advantages of selectivity toward targeted Cd (II) compared with NIP in the presence other metal ions. The results showed that the IIPs possessed good specific adsorption capacity and selectivity for Cd (II).