نتایج جستجو برای: fast adsorption

تعداد نتایج: 282543  

2015
Imed GhIloUFI

Partial carbonized nanoporous resin (PCNR-150), based on organic xerogel compounds, was prepared at 150 oC by sol–gel method from pyrogallol and formaldehyde mixtures in water using perchloric acid as catalyst. The PCNR-150 was characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transformed infrared spectroscopy (FTIR) and nitrogen porosim...

Journal: :Nanoscale 2013
Irene Emmanuelawati Jie Yang Jun Zhang Hongwei Zhang Liang Zhou Chengzhong Yu

A facile spray drying technique has been developed for large-scale and template-free production of nanoporous silica with controlled morphology, large pore size, and high pore volume, using commercially available fumed silica, Aerosil 200, as a sole precursor. This approach can be applied to the preparation of functional nanoporous materials, in this study, lanthanum oxide functionalised silica...

Journal: :Biomedical and environmental sciences : BES 2010
Yi Huang Shu-Ying Zhang Ming-Ji Lv Shu-Guang Xie

OBJECTIVE To investigate the potential of Gomphidius viscidus, a kind of ectomycorrhizal fungi, for phytoremediation of anthracene in soil. METHODS Absorptioe changes of micro-habitat were studied in detail. CONCLUSION Ectomycorrhizal plants have a strong potential for remediation of polycyclic aromatic hydrocarn characteristics of both active and inactivated mycelia. RESULTS A high calcu...

2011
Danling L. Wang Antao T. Chen Qifeng F. Zhang Guozhong Z. Cao

Semiconducting nanowires were synthesized and their chemical sensor performance was studied. It was found that the nanowires exhibited a large and reversible change in electrical resistivity when exposed to trace vapor of nitroaromatic and nitroamine explosives. The sensor showed high sensitivity and fast response at room temperature. The chemiresistive effect was attributed to the adsorption o...

2013
Hongxu Guo Yingchang Ke Dongfeng Wang Kaili Lin Ruxiang Shen Jianhua Chen Wen Weng

NiS nanoparticles (NiS NPs) have been hydrothermally prepared and characterized by the methods of X-ray diffraction, scanning electronic microscope, X-ray photoelectron spectroscopy, UV-Vis diffuse reflectance spectra, photoluminescence, and thermogravimetric analysis. NiS NPs exhibit fast adsorption in the removal of Congo red (CR) in aqueous solution, in which the pseudo-second-order model wa...

Journal: :Science 2006
Maria Flytzani-Stephanopoulos Mann Sakbodin Zheng Wang

Sorbent materials that allow for high-temperature, regenerative desulfurization of fuel gas streams for the anode of a solid oxide fuel cell have been developed. Reversible adsorption of H2S on cerium and lanthanum oxide surfaces is demonstrated over many cycles at temperatures as high as 800 degrees C, on both fresh or presulfided sorbents, and at very high space velocities. The adsorption and...

Journal: :Nanoscale 2014
Yun-Pei Zhu Ya-Lu Liu Tie-Zhen Ren Zhong-Yong Yuan

Hollow manganese phosphonate microspheres of an inorganic-organic hybrid with hierarchically porous shells were prepared through a template-free hydrothermal method using ethylene diamine tetra(methylene phosphonic acid) as the coupling molecule. The hollow structures with hierarchical porosity were confirmed by SEM, TEM and N2 sorption. FT-IR, XPS and TG-DSC measurements revealed that the orga...

2017
C. F. Martín S. Brandani

This work presents an economic and simple method to manufacture low cost, but effective adsorbents for CO2 capture through impregnating DETA to a low cost, porous silica gel. The results have demonstrated that the low cost silica gel impregnated by low molecular-weight amine is stable and work very well at a temperature up to 130 C. The developed adsorbent has a fast adsorption kinetics and can...

Journal: :ACS applied materials & interfaces 2012
Yong Wang Jie He Jiwei Chen Lianbing Ren Biwang Jiang Jing Zhao

We report a preparation method for the synthesis of monodisperse magnetic polymer/silica hybrid microspheres using polymer microspheres incorporated with magnetic nanoparticles as a novel template. Monodisperse, hierarchically mesoporous, silica microspheres embedded with magnetic nanoparticles were successfully fabricated after the calcination of the hybrid microspheres. The magnetic nanoparti...

2009
Sean X. Liu

The study of protein adsorption on the membrane surface is of great importance to cheese-making processors that use polymeric membrane-based processes to recover whey protein from the process waste streams. Quartz crystal microbalance with dissipation (QCM-D) is a lab-scale, fast analytical technique that can precisely monitor and quantify the amount of proteins adsorbed onto the polymer surfac...

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