搜索结果: 1-15 共查到“凹凸棒石 Cu”相关记录34条 . 查询时间(0.159 秒)
Assessment of Soil Heavy Metal Cu, Zn and Cd Pollution in Beijing, China
Beijng Cd Cu Soil Heavy Metal Pollution Zn
2011/12/21
The soil heavy metal pollution have be paid more attention because the sources of soil heavy metals become multiple and complicated with the accelerated urbanization. According to this research, the o...
Removal of Cu(II) Ions from Aqueous Solution by KH-570 Modified Attapulgite Clay
Adsorption Copper Ion Modified Attapulgite Clay (ATP) by KH-570
2011/11/15
Attapulgite clay (ATP) was modified by Silane coupling agent (KH-570) to creat more efficient sites for Cu(II) adsorption. The natural and KH-570 modified attapulgite clay were characterized by Fourie...
DTPA改性膨润土处理含Cu～（2+）废水的研究
DTPA 改性膨润土 Cu（2+）废水 研究
2011/11/3
目前,国内外对改性膨润土在废水处理领域中的应用研究主要集中在有机膨润土对废水中有机污染物的吸附去除,而关于有机膨润土对无机污染物特别是有毒重金属的吸附去除研究较少。本文对改性膨润土吸附处理含Cu~(2+)废水进行了比较系统的研究。 本论文实验所用的吸附剂是以有机螯合剂DTPA和天然膨润土为原料,研制合成的改性膨润土。以Cu~(2+)污染模拟废水为研究对象,通过单因素实验研究合成改性膨润土的最佳实验...
膨润土是我国含量丰富的一种粘土矿物,具有独特的层状结构,有很强的吸附能力。改性处理能大大提高膨润土的吸附性能,并能有效吸附水溶液中的重金属离子、有机物等污染物质。膨润土应用于废水处理,具有操作简便、效果好、成本低廉等优势。本文首先对膨润土进行了提纯,测定了膨润土的基本物化性能,对膨润土进行了改性试验研究,并利用X射线荧光光谱法、X射线衍射等手段对改性结果进行了分析。试验还对膨润土吸附水中铜离子的影...
水悬浮体系中凹凸棒石与Cu^2＋作用机理
水悬浮体系 凹凸棒石 Cu^2＋ 作用机理
2012/2/14
研究矿物吸附重金属性能和机理，对正确认识矿物吸附性质、环境矿物材料应用研究以及重金属环境化学行为具有重要理论和实际意义。凹凸棒石是重要粘土矿物之一，也是重要的环境矿物材料，其吸附净化功能潜在应用受到广泛关注。在制备凹凸棒石纯样基础上，进行了凹凸棒石吸附Cu^2+单因素实验，吸附前后溶液pH值变化观测和吸附Cu^2+后凹凸棒石表面结构高分辨透射电镜调查。结果表明，从表面来看，凹凸棒石对Cu^2+的吸...
制备了负载在Na-Y分子筛上的Fe-Cu-Mn-Y复合催化剂, 并对其在非均相UV/Fe-Cu-Mn-Y/H2O2体系中催化氧化4BS染料废水进行了研究。 结果表明, 非均相UV/Fe-Cu-Mn-Y-H2O2体系对4BS染料废水的处理具有很高的效率。 在基准条件下, 反应时间为20min时, 废水中4BS的去除率达到了93.7%。 与均相UV/Fenton体系不同, 非均相UV/Fe-Cu-Mn...
本文对以凹凸棒石为载体的银、铜抗菌剂的制备工艺及性能进行了试验研究。工艺试验研究结果表明：1、天然凹凸棒石(以下简称凹土)需通过提纯方可作为抗菌剂载体。研究形成的有效提纯方法：凹土以7：93土水比浸泡48h后高剪切分散3min，并以0.4gNaOH／100g土降粘，再离心分离。其中提高离心温度可使分离效率提高2～3倍，通常采用30～40℃的温度。实验室提纯收得率为33％～45％。2、硝酸湿法活化处...
Coprecipitates of Cd, Cu, Pb and Zn in Iron Oxides: Solid Phase Transformation and Metal Solubility after Aging and Thermal Treatment
Aging Study Coprecipitation Electron Microprobe Analysis Ferrihydrite Transformation Metal Solubility Rate of Titration Thermal Treatment
2011/12/8
Abstract: Solid phase transformation and metal solubility were monitored after coprecipitation of Cd2+, Cu2+, Pb2+ and Zn2+ with Fe3+ to form ferrihydrite by titration to pH 6. The (co)precipitates we...
Sorosite, Cu(Sn,Sb), a new mineral from the Baimka placer deposit, western Chukotka, Russian Far East
Sorosite Cu(Sn,Sb) Baimka placer deposit
2012/4/1
Sorosite, ideally Cu(Sn,Sb), is a new mineral species from the Baimka gold-platinum-group mineral placer deposit, Chukotka, Russian Far East. It occurs as large subhedral to euhedral crystals (0.1–0.4...
Description and crystal structure of Yvonite, Cu(AsO3OH)2H2O
Description crystal structure Yvonite Cu(AsO3OH)2H2O
2012/3/31
Yvonite, Cu(AsO3OH)2H2O, was found in the Salsigne mine near Carcassone (Aude,France). It forms aggregates or radiating spherules consisting of individual crystals (maximal size 0.3 3 0.15 3 0.06 mm) ...
Brazilian Red Latosol a Typic Soil as an Exchanger: A Thermodynamic Study Involving Cu, Zn, Cd, Hg, Pb, Ca and Na
Adsorption Ionic Exchange Isotherm Langmuir Method Red Latosol Soil
2011/12/9
Abstract: The thermodynamic cationic exchange process involving divalent (Cu, Zn, Cd, Hg, Pb and Ca) and monovalent (Na) cations in Brazilian red Latosol soil was studied. Using a batchwise method, th...
Structure of synthetic Li2(Mg,Cu)Cu2[Si2O6]2: A unique chain silicate related to pyroxene
Structure synthetic Li2(Mg,Cu)Cu2[Si2O6]2 unique chain silicate pyroxene
2012/4/1
A unique Cu-bearing chain silicate, Li2(Mg,Cu)Cuz[Si206b was synthesized, and the
structure was determined by single-cry~tal X-ray diffraction techniques. The structure was5.7068(7), b =
found to be...
Polymerization of Benzene and Aniline on Cu(II)-Exchanged Hectorite Clay Films: A Scanning Force Microscope Study
Aniline Benzene Hectorite Scanning Force Microscopy
2011/12/27
The technique of scanning force microscopy (SFM) was used to study the nanometer-scale structure of Cu(II)-exchanged hectorite thin films. Supporting data were also obtained from Electron Spin Resonan...
Medenbachite, Bi2Fe(Cu,Fe)(O,OH)2(OH)2(AsO4)2, a new mineral species: Its description and crystal structure
Medenbachite Bi2Fe(Cu,Fe)(O,OH)2(OH)2(AsO4)2 mineral species crystal structure
2012/4/5
Medenbachite occurs in association withmixite, preisingerite, alunite, goethite, reichen-bachite, and malachite in a silicified barite vein from Reichenbach near Bensheim, Oden-wald, Hesse, Germany. I...
Bechererite, (Zn,Cu)6Zn2(OH)13[(Si,S)(O,OH)4]2, a novel mineral species from the Tonopah-Belmont mine, Arizona
Bechererite (Zn,Cu)6Zn2(OH)13[(Si,S)(O,OH)4]2 Tonopah-Belmont mine
2012/4/5
Bechererite is a new mineral found ondump material from the Tonopah-Belmont mine, Maricopa County, Arizona, U.S.A. It occurs as thin elongated crystals, commonly in hemispherical aggregates, and it is...