modified silica gelfluorinated silylation agentBranched-chain polyfluorosilane (monochlorodimethyl[4,4-bis(trifluoromethyl)-5,5,6,6,7,7,7-heptafluoroheptyl)-bonded silica gels were prepared. The surface properties of the silica gels modified with various organic silanes were evaluated by the ...
Experimental comparison of adsorption characteristics of silica gel and zeolite in moist airIn this work, the macro adsorption characteristic of water vapor by the allochroic silica gel and the zeolite 5A and ZSM-5 were investigated experimentally. BET analysis method presented the differenc...
Xian Wang,Rongzhou Gong,Xiangcheng Li,Yanfei He,Lingyun Liu,Peigang Li.Preparation and electromagnetic characteristics of silica coated Fe–Ni–Mo alloy flakes[J]. Journal of Materials Science: Materials in Electronics .2007(5)Wang X, Gong R Z, Li X C, et al. Preparation and electromagnetic...
The investigated characteristics are the porous structure stability, isosteric heat of adsorption, adsorption diffusion energy, adsorption isotherm, and adsorption kinetic under extended operating conditions 15–55 °C. The results showed the high affinity of silica gel towards ethanol to provide sub-zero...
Two grams of the methanol crude extract were further purified using ethyl acetate and silica gel column chromatography as described in the methods section. This approach yielded 1.57 g of ethyl acetate fraction (L-acetate, L for local propolis, and acetate for ethyl acetate). The bio-...
Preparation of Dufulin imprinted polymer on surface of silica gel and its application as solid-phase extraction sorbent. A new molecularly imprinted polymer (MIP) based on silica-gel surface was developed using Dufulin (Duf) as a template, methacrylic acid (MAA) as a function... Shan,Shan,Mi...
Using an equilibrium batch technique, we determined the extractability of 237Np, 239Pu, 241Am, and 2 H Nishita,A Wallace,EM Romney,... - 《Soil Science》 被引量: 33发表: 1981年 THE ION EXCHANGE PROPERTIES OF SILICA GEL. I. THE SORPTION OF Na$sup +$, Ca$sup 2+$, Ba$sup 2+$...
Characteristics and laser performance of Yb3+-doped silica large mode area fibers prepared by Sol-Gel method. WANG S,LOU F,WANG M,et al. Fibers . 2013Wang, S.; Lou, F.; Wang, M.; Yu, C.; Feng, S.; Zhou, Q.; Chen, D.; Hu, L. Characteristics and laser performance of Yb3+...
Silica gel thin layer chromatography reveals no unbound fluorescein upon elution with 30% methanol: chloroform. Fluoresceinated ssDNA A single stranded oligodeoxynucleotide(ssDNA) containing 5-(3-aminopropenyl)-deoxyuridine at position 13 (relative to the 5' end) is synthesized using an Applied ...
In this paper, sol-gel method and ambient pressure drying were used to prepare polyester fiber felt/silica aerogel composite thermal-insulation material. The hydrophobic properties and the microstructure of the aerogel composites were characterized. Moreover, the water-vapor transmission rate and the ...