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T Thilsing-Hansen et al.
Acta veterinaria Scandinavica. Supplementum, 97, 87-95 (2003-11-19)
This article summarizes the results obtained in 6 separate studies concerned with the effect of zeolite A supplementation in the dry period on blood calcium, magnesium and phosphorus status around calving. The experiments were conducted on 5 different farms, and
Hypercalcemic crisis due to vitamin D toxicity.
Jonathan R Genzen
Laboratory medicine, 45(2), 147-150 (2014-05-30)
Mery Montinaro et al.
Life sciences, 92(17-19), 903-910 (2013-04-09)
Oxidative stress is considered one of the main events that lead to aging and neurodegeneration. Antioxidant treatments used to counteract oxidative damage have been associated with a wide variety of side effects or at the utmost to be ineffective. The
Fronczyk Joanna et al.
Journal of environmental sciences (China), 25(9), 1764-1772 (2014-02-14)
To recognize properties of a mixture of Vistula sand (medium sand acc. to USCS) with Slovak zeolite as reactive materials suitable for permeable reactive barriers proposed for protection of groundwater environment in vicinity of old landfills comprehensive laboratory investigations were
Xingxing Gu et al.
Journal of nanoscience and nanotechnology, 14(6), 4655-4663 (2014-04-18)
In this study, hexadecyltrimethyl ammonium bromide and triblock poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) were used as co-templates and tetraethoxysilane was used as silica source to synthesize mesoporous MCM-48, which was employed to adsorb methyl violet dye from water. The prepared MCM-48
Seong-Soo Kim et al.
Journal of nanoscience and nanotechnology, 14(4), 2925-2930 (2014-04-17)
In-situ catalytic cracking of xylan, a model compound of hemicellulose, was carried out using pyrolysis-gas chromatography/mass spectrometry over mesoporous Y for the first time. Experiments were conducted at three different temperatures, 400 degrees C, 450 degrees C, and 500 degrees
Ping Ning et al.
Journal of environmental sciences (China), 25(4), 808-814 (2013-08-09)
Metal (Cu, Co, or Zn) loaded ZSM-5 and Y zeolite adsorbents were prepared for the adsorption of hydrogen cyanide (HCN) toxic gas. The results showed that the HCN breakthrough capacity was enhanced significantly when zeolites were loaded with Cu. The
Yasuyuki Takamitsu et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 48(7), 667-674 (2013-03-01)
Catalytic oxidation of volatile organic compounds (VOCs) was carried out over a composite catalyst comprising Pt/γ-Al₂O₃ and protonated beta zeolite. The conversion of several VOCs such as ethyl acetate, butyl acetate, 2-propanol, 1,2-dichloroethane, and chloroethane over the composite catalyst was
Z Ioannou et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 67(5), 1129-1136 (2013-02-19)
Zeolite, hematite, modified zeolite and commercial activated charcoal were examined for their ability to remove methylene blue (MB) and methyl red (MR) from their aqueous solutions. Modified zeolite and hematite were produced according to the Schwertmann and Cornell method while
Chi Kim Lim et al.
Environmental science and pollution research international, 20(10), 7243-7255 (2013-05-09)
In this study, the adsorption behavior of azo dye Acid Orange 7 (AO7) from aqueous solution onto macrocomposite (MC) was investigated under various experimental conditions. The adsorbent, MC, which consists of a mixture of zeolite and activated carbon, was found
Xiaobiao Zhu et al.
Applied microbiology and biotechnology, 97(19), 8767-8775 (2012-12-12)
In this study, a lab-scale anaerobic/anoxic/zeolite biofilter-membrane bioreactor (A1/A2/ZB-MBR) was designed to treat coking wastewater. The 454 pyrosequencing was used to obtain the composition and dynamics of microbial community about the treatment system. The results showed that the system yielded
Alexandra I Lupulescu et al.
Science (New York, N.Y.), 344(6185), 729-732 (2014-05-17)
The growth mechanism of silicalite-1 (MFI zeolite) is juxtaposed between classical models that postulate silica molecules as primary growth units and nonclassical pathways based on the aggregation of metastable silica nanoparticle precursors. Although experimental evidence gathered over the past two
Alireza Nezamzadeh-Ejhieh et al.
Chemosphere, 107, 136-144 (2014-05-31)
Photodegradation of tetracycline (TC) aqueous solution by FeO doped onto nano-clinoptilolite particles was investigated using a high pressure Hg lamp as radiation source. Nano-particles of clinoptilolite were prepared using ball-milling of micro crystals of zeolite. The pretreated nano-particles ion exchanged
S Weiß et al.
Applied microbiology and biotechnology, 97(7), 3225-3238 (2013-02-26)
Plant cell wall structures represent a barrier in the biodegradation process to produce biogas for combustion and energy production. Consequently, approaches concerning a more efficient de-polymerisation of cellulose and hemicellulose to monomeric sugars are required. Here, we show that natural
Eun A Kang et al.
Journal of nanoscience and nanotechnology, 13(11), 7498-7503 (2013-11-20)
Mesoporous SAPO-34 zeolites were synthesized by using as-prepared mesoporous silica material as both silica source and mesopore tailor. The mesoporous SAPO-34 zeolite materials thus obtained are characterized by a series of different techniques, including poweder X-ray diffraction pattern, nitrogen physisorption
Iu F Chekov
Aviakosmicheskaia i ekologicheskaia meditsina = Aerospace and environmental medicine, 43(2), 37-45 (2009-07-23)
The author describes a zeolite system for carbon dioxide removal integrated into a closed air regeneration cycle aboard spacecraft. The continuous operation of a double-adsorbent regeneration system with pCO2-dependable productivity is maintained through programmable setting of adsorption (desorption) semicycle time.
Wei-yu Shi et al.
Journal of hazardous materials, 170(1), 1-6 (2009-05-26)
Hazardous heavy metal pollution of soils is an increasingly urgent problem all over the world. The zeolite as a natural amendment has been studied extensively for the remediation of hazardous heavy metal-polluted soils with recycling. But its theory and application
M Kasperkowiak et al.
Journal of chromatography. A, 1288, 101-104 (2013-03-26)
Sorbents that potentially can be used for separation of the products of biotechnological conversion of glycerol were examined. Properties of Zeolite 5A, resins: Amberlite, Diaion and their samples impregnated with an aqueous solutions of 1,2,3-propanetriol, 1,3-propanediol, 2,3-butanediol, acetic acid, succinic
Danny Verboekend et al.
Chimia, 67(5), 327-332 (2013-07-19)
This review emphasizes key recent accomplishments towards the industrial exploitation of hierarchically structured zeolites in catalytic processes. A major milestone comprises the demonstration that affordable post-synthetic modifications enable the transformation of any conventional zeolite into hierarchical analogues with tunable porosity
Ke Zhang et al.
Chemical communications (Cambridge, England), 49(31), 3245-3247 (2013-03-15)
Alcohol (methanol, ethanol, 1-propanol, 2-propanol and 1-butanol) and water vapor adsorption in zeolitic imidazolate frameworks (ZIF-8, ZIF-71 and ZIF-90) with similar crystal sizes was systematically studied. The feasibility of applying these ZIF materials to the recovery of bio-alcohols is evaluated
David Lesthaeghe et al.
Physical chemistry chemical physics : PCCP, 11(26), 5222-5226 (2009-06-25)
Zeolites provide a unique setting for heterogeneous Brønsted acid catalysis, because the effects of the surrounding framework on fundamental reaction kinetics go well beyond what would be expected for a mere reaction flask. This aspect becomes very pronounced when bulky
Otilia Bizerea Spiridon et al.
Environmental science and pollution research international, 20(9), 6367-6381 (2013-04-17)
It is well known that adsorption is an efficient method of removal of various pollutants from wastewater. The present study examines the phenol removal from water by adsorption on a new material, based on zeolitic volcanic tuff. This compound contains
Materials science. Imaging crystallization.
Preshit Dandekar et al.
Science (New York, N.Y.), 344(6185), 705-706 (2014-05-17)
Stanisław Chałupnik et al.
Environmental science and pollution research international, 20(11), 7900-7906 (2013-07-25)
For removal of radium from saline waters in Upper Silesian mines, several methods of purification have been developed. The most efficient one is based on application of barium chloride, which was implemented in full technical scale in two Polish coal
S Malamis et al.
Journal of hazardous materials, 252-253, 428-461 (2013-05-07)
Adsorption and ion exchange can be effectively employed for the treatment of metal-contaminated wastewater streams. The use of low-cost materials as sorbents increases the competitive advantage of the process. Natural and modified minerals have been extensively employed for the removal
Kengo Sakaguchi et al.
Applied microbiology and biotechnology, 67(3), 306-311 (2005-01-20)
The purpose of this short review is to introduce applications of inorganic composites, zeolites, in biotechnology. Although inorganic chemistry is generally considered distant from biotechnology, the two could be harmoniously integrated for biopolymer chromatography. New chromatographic carriers have been developed
Liling Zhang et al.
Journal of the American Chemical Society, 135(9), 3722-3728 (2013-02-22)
A new force field and a hybrid Monte Carlo/molecular dynamics simulation method are developed to investigate the structural transition of zeolitic imidazolate framework-8 (ZIF-8) induced by N2 sorption. At a high loading (approximately 50 N2 molecules per unit cell), ZIF-8
Leonardo Vinícius Monteiro de Assis et al.
Biochimica et biophysica acta, 1845(2), 232-247 (2014-02-05)
Malignant Mesothelioma (MM) is a very aggressive cancer with low survival rates and often diagnosed at an advanced stage. Several players have been implicated in the development of this cancer, such as asbestos, erionite and the simian virus 40 (SV40).
Irina I Ivanova et al.
Chemical Society reviews, 42(9), 3671-3688 (2012-12-12)
The review covers the recent developments in the field of novel micro-mesoporous materials obtained by zeolite recrystallization. The materials are classified into three distinctly different groups depending on the degree of recrystallization: (i) coated mesoporous zeolites (RZEO-1); (ii) micro-mesoporous nanocomposites
Steam-stable aluminosilicate mesostructures assembled from zeolite type Y seeds
Liu Y, et al.
Journal of the American Chemical Society, 122(36), 8791-8792 (2000)
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