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1. 发明申请

WO2007001309A3 PREPARATION AND APPLICATIONS OF STABILIZED METAL NANOPARTICLES FOR DECHLORINATION OF CHLORINATED HYDROCARBONS IN SOILS, SEDIMENTS AND GROUNDWATER 审中-公开
标题翻译：稳定化金属纳米粒子在土壤，硫化物和地下水中氯化石油醚脱氯的制备与应用
公开(公告)号：WO2007001309A3
公开(公告)日：2007-06-14
申请号：PCT/US2005023384
申请日：2005-06-30
申请人： UNIV AUBURN , ZHAO DONGYE , HE FENG
发明人： ZHAO DONGYE , HE FENG
IPC分类号： B32B5/16 , B05D7/00 , C02F1/70
CPC分类号： C02F1/705 , B09C1/002 , B09C1/08 , C02F2101/36 , C02F2103/06 , Y10T428/12028
摘要： Stabilized, chemically reactive, metallic nano-material effective for degradation of chlorinated organic compounds in soils, sediments and groundwater. The nano-material is composed of a magnetic metal nanoparticle and a carbohydrate stabilizer bound to the nanoparticle. The preferred metal nanoparticle is iron and the preferred carbohydrate stabilizer is either a starch or a water soluble cellulose such as sodium carboxymethyl cellulose. The nanoparticle may be either mono-metallic, bi-metallic or multi-metallic in nature, but is preferably bi-metallic wherein it is coated with a secondary catalytic metal coating, preferably palladium. A method of making the metallic nano-material is further disclosed wherein a solution of the metal nanoparticle and carbohydrate stabilizer is prepared, and the nanoparticle is then reduced under inert conditions. A process for reductive dechlorination of chlorinated organic compounds is also disclosed wherein the reduced magnetic metal nanoparticle is prepared, and then contacted with a chlorinated organic compound to dechlorinate the compound. Preferably, the nano-material is injected into a site such as oil subsurface or groundwater contaminated with a chlorinated organic compound to provide in-situ dechlorination.
摘要翻译：稳定化学反应的金属纳米材料有效降解土壤，沉积物和地下水中的氯化有机化合物。纳米材料由磁性金属纳米颗粒和与纳米颗粒结合的碳水化合物稳定剂组成。优选的金属纳米颗粒是铁，优选的碳水化合物稳定剂是淀粉或水溶性纤维素如羧甲基纤维素钠。纳米颗粒本质上可以是单金属的，双金属的或多金属的，但优选是双金属的，其中涂覆有次级催化金属涂层，优选钯。进一步公开了制备金属纳米材料的方法，其中制备金属纳米颗粒和碳水化合物稳定剂的溶液，然后在惰性条件下还原纳米颗粒。还公开了氯化有机化合物的还原脱氯方法，其中制备还原的磁性金属纳米颗粒，然后与氯化有机化合物接触以使化合物脱氯。优选地，将纳米材料注入到被氯化有机化合物污染的地下水或地下水等地点以提供原位脱氯。

2. 发明申请

WO2007115189A3 IN SITU REMEDIATION OF INORGANIC CONTAMINANTS USING STABILIZED ZERO-VALENT IRON NANOPATICLES 审中-公开
标题翻译：使用稳定的零价铁纳米粒子对无机污染物的现场补救
公开(公告)号：WO2007115189A3
公开(公告)日：2008-10-23
申请号：PCT/US2007065664
申请日：2007-03-30
申请人： UNIV AUBURN , ZHAO DONGYE , XU YINHUI
发明人： ZHAO DONGYE , XU YINHUI
IPC分类号： B09C1/02 , B09C1/08 , B09C1/10 , C02F1/70
CPC分类号： B09C1/08 , B09C1/02
摘要： A method for preparing highly stabilized and dispersible zero valent iron nanoparticles and using the nanoparticles as a remediation technology against inorganic chemical toxins in contaminated sites. The method employs a composition containing select polysaccharides (starch or cellulose) as a stabilizer for the iron nanoparticles in a liquid carrier, and results in suspensions of iron nanoparticles of desired size and mobility in water, brine, soils or sediments. The stabilizer facilitates controlling the dispersibility of the iron nanoparticles in the liquid carrier. An effective amount of the composition is delivered to a contaminated site so that the zero valent iron nanoparticles can remediate one or more toxins such as an arsenate, a nitrate, a chromate, or a perchlorate in the contaminated site.
摘要翻译：一种制备高度稳定和分散的零价铁纳米颗粒的方法，并使用纳米颗粒作为抗污染场所的无机化学毒素的修复技术。该方法使用含有选择性多糖（淀粉或纤维素）作为液体载体中铁纳米颗粒的稳定剂的组合物，并且导致在水，盐水，土壤或沉积物中具有所需尺寸和迁移率的铁纳米颗粒的悬浮液。稳定剂有助于控制铁纳米颗粒在液体载体中的分散性。将有效量的组合物输送到污染部位，使得零价铁纳米颗粒可以修复污染部位中的一种或多种毒素，例如砷酸盐，硝酸盐，铬酸盐或高氯酸盐。

3. 发明申请

WO2007101253A3 IN-SITU IMMOBILIZATION OF METALS IN CONTAMINATED SITES USING STABILIZED NANOPARTICLES 审中-公开
标题翻译：使用稳定的纳米粒子在污染场所中金属的原位固定
公开(公告)号：WO2007101253A3
公开(公告)日：2007-12-27
申请号：PCT/US2007062985
申请日：2007-02-28
申请人： AUBURN UNIVERSTITY , ZHAO DONGYE , XIONG ZHONG , BARNETT MARK , LIU RUIQIANG , FENG HE , HARPER WILLIE F
发明人： ZHAO DONGYE , XIONG ZHONG , BARNETT MARK , LIU RUIQIANG , FENG HE , HARPER WILLIE F
IPC分类号： B09B3/00 , A62D3/33 , B09C1/00 , B09C1/08 , C01G49/00 , C01G49/12 , C02F1/52
CPC分类号： C01G13/00 , B09C1/002 , B09C1/08 , B09C1/10 , B82Y30/00 , C01G49/12 , C02F1/281 , C02F1/5263 , C02F2101/20 , C02F2103/007 , C02F2103/06 , C02F2305/08 , C22B3/0097 , C22B13/00 , C22B43/00 , Y02P10/234
摘要： A method for preparing a class of highly stabilized and soil-dispersible nanoparticles and using the nanoparticles as a remediation technology for immobilizing toxic metals at toxic metal contaminated sites. The method employs a composition containing select polysaccharides (starch or cellulose) as a stabilizer for the nanoparticles in a liquid carrier, and results in suspensions of nanoparticles of desired size and mobility in water, soils or sediments. The stabilizer can facilitate controlling the dispersibility of the nanoparticles in the liquid carrier. An effective amount of the composition is delivered to a contaminated site so that the nanoparticles can immobilize one or more toxic metals of the contaminated site.
摘要翻译：一种用于制备一类高度稳定的和土壤可分散的纳米颗粒的方法，并且使用该纳米颗粒作为用于将有毒金属固定在毒性金属污染位点的修复技术。该方法采用含有选择的多糖（淀粉或纤维素）作为液体载体中的纳米颗粒的稳定剂的组合物，并且导致纳米颗粒在水，土壤或沉积物中具有所需尺寸和流动性的悬浮液。稳定剂可以促进控制纳米颗粒在液体载体中的分散性。将有效量的组合物递送至受污染的部位，使得纳米颗粒可以固定受污染部位的一种或多种有毒金属。

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