CN102205419A - Novel method for preparing load nano zero valent iron - Google Patents
Novel method for preparing load nano zero valent iron Download PDFInfo
- Publication number
- CN102205419A CN102205419A CN2011100752071A CN201110075207A CN102205419A CN 102205419 A CN102205419 A CN 102205419A CN 2011100752071 A CN2011100752071 A CN 2011100752071A CN 201110075207 A CN201110075207 A CN 201110075207A CN 102205419 A CN102205419 A CN 102205419A
- Authority
- CN
- China
- Prior art keywords
- iron
- nano zero
- zero valence
- preparation
- valence iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a novel method for preparing load nano zero valent iron. The iron source is iron-containing compounds of Fe<2+> and Fe<3+>, such as ferric oleate, ferric hydroxide oxide, ferric chloride, ferric nitrate and the like; and the loads are carbon black, active carbon, kieselguhr, zeolite and other load materials. The method is characterized in that: the iron-containing compounds on the loads are reduced into nano zero valent iron under the atmosphere condition and under the reduction action of reducing agents, such as H2, CO, and reduction carbon (such as coke, reduction coal and the like). The preparation method is environment-friendly, and simple and is low in cost; the expensive reducing agents (such as NaBH4 and the like) are avoided, and organic pollutants (such as halogenated hydrocarbon, pesticide, polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs), inorganic negative ions (such as NO<3->), and heavy metal (such as Cr<6+>, As<3+>, As<5+>, Cu<2+>, Pb<2+>) and the like can be efficiently removed effectively.
Description
Technical field
The present invention relates to a kind of preparation method of novel supported nano zero valence iron.
Background technology
Nano zero valence iron (nZVI) technology is a water body recovery technique that grows up over past ten years, is the nanometer technology that a new generation is applied to environmental area, is with a wide range of applications at surface water and underground water pollution reparation field.
The particle diameter of nano zero valence iron generally is controlled at 20-100nm, has double-decker, and the fe of internal layer is surrounded by outer ferriferous oxide, the thick about 10-20nm of shell (Ramos, 2009).The high-specific surface area of nano zero valence iron, high osmosis, high reaction activity can efficiently be removed organic pollution (as halogenated hydrocarbons, agricultural chemicals, PCBs, PAHs), and inorganic anion is (as NO
3 -), heavy metal is (as Cr
6+, As
3+, As
5+, Cu
2+, Pb
2+) wait (Ponder, 2000; Choe, 2000; Li, 2006).Aspect purifying organic, it is TCE basic realization complete dechlorination (Wang, 1997) in 1.7h of 20ml/L that consumption 2g nano zero valence iron can make 100ml concentration.Removing aspect the inorganic matter, in concentration is the nitrate solution of 400mg/L, adding the 4g/L nano zero valence iron, NO
3 -In 30min, promptly all remove (Choe, 2000).
Nano zero valence iron exists form to be divided into decentralized and support type.The preparation method of decentralized Zero-valent Iron is as follows: under the stirring condition, add Fe (II) or Fe (III) precursor body in the aqueous solution, slowly drip excessive strong reductant boron hydride such as NaHB
4, the reduced iron ion is generated nanoscale zero-valent iron, and after centrifugal filtration, sample is preserved in ethanol and is got final product (Sun, 2006; Morgada, 2009; Shahwan, 2008; Wei, 2010; Ramos, 2009).
The common-mode of nano zero valence iron carrying method is: porous carrier (as active carbon, bentonite, shitosan, polymerization macromolecule etc.) fully mixes with the Fe (II) or Fe (III) aqueous solution, and iron ion is written into absorption, enrichment, coprecipitation mode, again through NaHB
4Reduction obtains the support type Zero-valent Iron.This pattern has obtained support type nZVI nanometer or accurate nano material to a certain extent, but low, the easy reunion of load Fe content, heterogeneity and peel off easily.Aspect macromolecule loading, with resin adsorption Fe (II), again through NaHB
4Reduction has prepared resin-carried type nZVI (Ponder, 2000) the earliest.Upload one deck polypropylene amine hydrochloride and polyacrylic resin laminated film at glass ball or carbon film, immerse Fe then
2+The aqueous solution drips excessive NaHB again
4Reduction obtains a kind of film support type nZVI (Huang, 2008).Aspect the inorganic porous material load, be carrier with coal-based soccer star's active carbon, with sodium borohydride (NaBH
4) be reducing agent, divalent iron salt is mixed the back reduction obtain nZVI-AC (Zhu, 2009) with active carbon.A certain proportion of ferrous ion and kaolin are fully mixed, and sonic oscillation 30min fully disperses clay, slowly splashes into NaHB
4To BH
4 -/ Fe
2+Be about 3, ferrous ion finally change into nZVI (
2009).Aspect the ore load, utilize magnalium skin stone (acid treatment) and trivalent iron salt under the magnetic stirring apparatus effect, exchanging completely/adsorbing, centrifugal washing suspension is placed on the mixed liquor (v: v=4: 1) of second alcohol and water, and in mixed liquor, dropwise add boron hydride, results magnalium skin stone-nZVI (Forst, 2010).
Traditional nano zero valence iron preparation method is a liquid phase reduction, utilizes sodium borohydride (NaBH
4) reduced iron ion (Fe
2+Or Fe
3+).Its advantage is that experimental implementation is simple, and feasibility is stronger, and weak point is that reagent cost is higher, the industrial 150-250 unit/kilogram that reaches, and the price of commercial nZVI is approximately 50 dollars/kilogram.The Zero-valent Iron Size Distribution scope of results is wider, and particle diameter and composition are unstable, and can not regenerate.
Summary of the invention
The purpose of this invention is to provide a kind of economy, environmental protection, particle diameter is evenly distributed, the iron load factor is high nano zero valence iron (NZVI) preparation method.
The present invention solves this technical problem the technical scheme that is adopted: the carrier of described loaded article is carbon black, active carbon, diatomite, zeolite even load material, and the activated centre of described loaded article is a nano zero valence iron.
The preparation method of nano zero valence iron (NZVI) is characterized in that: under atmospheric condition, by additional reducing agent H
2, CO, reproducibility C (as coke, go back raw coal etc.) reduction, make that the iron containing compounds on the carrier is reduced into nano zero valence iron.
Concrete steps comprise:
1) iron containing compounds is well dispersed in polarity or the non-polar solven system;
2) iron-containing liquor is dispersed on the carrier, is muddy, and evaporation or vacuum filtration are realized load, drying for standby;
3) heating load thing, continuity or the intermittent additional reducing agent that feeds, cooling back results loaded nano Zero-valent Iron.
3, the preparation method of novel supported nano zero valence iron according to claim 2, source of iron are Fe
2+Or Fe
3+Iron containing compounds (as iron oleate, iron hydroxide, iron chloride, ferric nitrate etc.).
The preparation method of described novel supported nano zero valence iron, loaded article is carbon black, active carbon, diatomite, zeolite even load material.
The preparation method of described novel supported nano zero valence iron, additional reducing agent is H
2, CO, reproducibility C (as coke, go back raw coal etc.).
The preparation method of described novel supported nano zero valence iron, loaded article is reduced under atmospheric condition.
The preparation method of described novel supported nano zero valence iron, reduction temperature is 600-1500 ℃.
The invention has the beneficial effects as follows:
The preparation method of this nano zero valence iron is different from traditional liquid phase reduction.One uses additional reducing agent H
2, CO, reproducibility C (as coke, brown coal, carbon black etc.) reduction obtain nano zero valence iron, avoided expensive borane reducing agent sodium hydride (NaBH
4) use; Its two, whole reduction process is carried out under atmospheric condition; Its three, the loaded article of being gathered in the crops can directly be preserved, and need not to clean repeatedly with organic solvents such as acetone, ethanol; Its four, the prepared nano zero valence iron Size Distribution of this method is more even, particle diameter is controlled at 20-200nm.We utilize Fe
2+Or Fe
3+Iron containing compounds (as iron oleate, iron hydroxide, iron chloride, ferric nitrate etc.) as source of iron, materials such as carbon black, active carbon, diatomite, zeolite are as loaded article, make up the dispersing composite bodies system of load matrix and iron containing compounds, by additional reducing agent H
2, CO, reproducibility C (as coke, go back raw coal etc.) reduction, under atmospheric condition, obtain the loaded nano Zero-valent Iron after the heat treated.
Specifically implement to arrange mode:
Embodiment 1:
Preparation or purchase iron oleate all are dispersed in the mixed system of non-polar solven, and iron hydroxide all is dispersed in the mixed system or the FeCl of non-polar solven
3The aqueous solution is got the solution 5ml of above a certain system, and vacuum filtration loads on it on 1.000g carbon black.Collect the residue on the filter paper, first standing over night after the weighing is handled 24h with baking oven in 60 ℃ more immediately.
Embodiment 2:
Get iron oleate-carbon black loadings thing 0.200g, place the tubular type atmosphere furnace thermal treatment zone.Feed N to burner hearth earlier
2, N
2Flow velocity is controlled at 200ml/min, duration 20min.Stop to feed N
2After, feed H to burner hearth
2, H
2Flow velocity is controlled at 100ml/min, duration 20min.Close H
2Gas cylinder is also opened electric furnace, is warming up to 1100 ℃, and adding up heat time heating time is 3h, and per hour the speed batch (-type) with 100ml/min feeds H
2, ventilation duration 5min.Gained loaded article sign situation is seen Fig. 1 (iron oleate-carbon black loadings thing is through the XRD figure after the hydrogen treat) and Fig. 2 (the XRD peak type match map of iron oleate-carbon black loadings thing and 01-087-0722 type α-Fe).
Embodiment 3:
Get iron oleate-activated carbon supported thing 0.200g, place the tubular type atmosphere furnace thermal treatment zone.Feed N to burner hearth earlier
2, N
2Flow velocity is controlled at 500ml/min, duration 20min.Stop to feed N
2After, feed H to burner hearth
2, H
2Flow velocity is controlled at 100ml/min, duration 20min.Close H
2Gas cylinder is also opened electric furnace, is warming up to 800 ℃, and adding up heat time heating time is 10h, and per hour the speed batch (-type) with 100ml/min feeds H
2, ventilation duration 5min.
Embodiment 4:
Get iron hydroxide-carbon black loadings thing 0.400g, place the tubular type atmosphere furnace thermal treatment zone.Feed N to burner hearth earlier
2, N
2Flow velocity is controlled at 200ml/min, duration 30min.Stop to feed N
2After, feed H to burner hearth
2, H
2Flow velocity is controlled at 200ml/min, duration 20min.Close H
2Gas cylinder is also opened electric furnace, is warming up to 1000 ℃, and adding up heat time heating time is 10h, and per hour the speed batch (-type) with 100ml/min feeds H
2, ventilation duration 5min.
Embodiment 5:
Get iron hydroxide-activated carbon supported thing 0.400g, place the tubular type atmosphere furnace thermal treatment zone.Feed N to burner hearth earlier
2, N
2Flow velocity is controlled at 500ml/min, duration 20min.Stop to feed N
2After, feed H to burner hearth
2, H
2Flow velocity is controlled at 200ml/min, duration 20min.Close H
2Gas cylinder is also opened electric furnace, is warming up to 1000 ℃, and adding up heat time heating time is 3h, and per hour the speed batch (-type) with 100ml/min feeds H
2, ventilation duration 5min.
Embodiment 6:
Get iron oleate-carbon black loadings thing 0.400g, place the tubular type atmosphere furnace thermal treatment zone.Feed N to burner hearth earlier
2, N
2Flow velocity is controlled at 200ml/min, duration 20min.Stop to feed N
2After, feed H to burner hearth
2, H
2Flow velocity is controlled at 100ml/min.Open electric furnace behind the 20min, be warming up to 1000 ℃, adding up heat time heating time is 1h.
Description of drawings: Fig. 1 is that iron oleate-carbon black loadings thing is through the XRD figure after the hydrogen treat.
Fig. 2 is the XRD peak type match map of iron oleate-carbon black loadings thing and 01-087-0722 type α-Fe.
Claims (7)
1. novel supported nano zero valence iron is characterized in that: this is the loaded nano material, and the activated centre of described loaded article is a nano zero valence iron.
2. the preparation method of a novel supported nano zero valence iron is characterized in that: under atmospheric condition, by additional reducing agent H
2, CO, reproducibility C (as coke, go back raw coal etc.) reduction, make that the iron containing compounds on the carrier is reduced into nano zero valence iron.
Concrete steps comprise:
1) iron containing compounds is well dispersed in polarity or the non-polar solven system;
2) iron-containing liquor all is dispersed on the carrier, is muddy, and evaporation or vacuum filtration are realized load, drying for standby;
3) heating load thing, continuity or the intermittent additional reducing agent that feeds, cooling back results loaded nano Zero-valent Iron.
3. the preparation method of novel supported nano zero valence iron according to claim 2, source of iron is Fe
2+Or Fe
3+Iron containing compounds (as iron oleate, iron hydroxide, iron chloride, ferric nitrate etc.).
4. the preparation method of novel supported nano zero valence iron according to claim 2, loaded article is carbon black, active carbon, diatomite, zeolite even load material.
5. the preparation method of novel supported nano zero valence iron according to claim 2, additional reducing agent is H
2, CO, reproducibility C (as coke, go back raw coal etc.).
6. the preparation method of novel supported nano zero valence iron according to claim 2, loaded article is reduced under atmospheric condition.
7. the preparation method of novel supported nano zero valence iron according to claim 2, reduction temperature is 600-1500 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100752071A CN102205419A (en) | 2011-03-28 | 2011-03-28 | Novel method for preparing load nano zero valent iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100752071A CN102205419A (en) | 2011-03-28 | 2011-03-28 | Novel method for preparing load nano zero valent iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102205419A true CN102205419A (en) | 2011-10-05 |
Family
ID=44694644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100752071A Pending CN102205419A (en) | 2011-03-28 | 2011-03-28 | Novel method for preparing load nano zero valent iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102205419A (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951718A (en) * | 2012-11-09 | 2013-03-06 | 华南理工大学 | Preparation method of modified zero-valence nano-iron suitable for underground water treatment |
| CN103316626A (en) * | 2013-07-12 | 2013-09-25 | 苏州微陶重金属过滤科技有限公司 | Filtering material having arsenic and heavy metal adsorbing and fixing functions, and use thereof |
| CN103331143A (en) * | 2013-07-12 | 2013-10-02 | 苏州微陶重金属过滤科技有限公司 | Arsenic removal filter material, preparation method of arsenic removal filter material and application of arsenic removal filter material in drinking water purification |
| CN103706805A (en) * | 2013-12-26 | 2014-04-09 | 徐剑晖 | Method for preparing carbon material carrying nanometer multi-element metal |
| CN103721715A (en) * | 2013-11-28 | 2014-04-16 | 温州大学 | Activated charcoal loaded nano zero-valent iron material |
| CN103920886A (en) * | 2014-05-06 | 2014-07-16 | 四川金沙纳米技术有限公司 | Method for producing ultra-fine iron powder |
| CN105013811A (en) * | 2015-07-02 | 2015-11-04 | 华南师范大学 | Preparation and application for heavy metal chromium contaminated soil remediation material |
| CN106378094A (en) * | 2016-11-18 | 2017-02-08 | 南京理工大学 | Preparation method of amino iron-carrying composite modified biochar |
| CN106811200A (en) * | 2017-01-13 | 2017-06-09 | 环保桥（湖南）生态环境修复有限公司 | A kind of complex repairation agent for reducing arsenic content in the crops of arsenic pollution area and preparation method thereof |
| CN106964197A (en) * | 2017-04-26 | 2017-07-21 | 吉林师范大学 | A kind of Supported On Granular Activated Carbon Nanoscale Iron composite filter element material and preparation method thereof |
| CN108160047A (en) * | 2018-01-02 | 2018-06-15 | 广东佳德环保科技有限公司 | A kind of coal-fired flue-gas goes the preparation method of the modified zeolite of the load nano zero valence iron of lead |
| CN109351321A (en) * | 2018-12-18 | 2019-02-19 | 北京服装学院 | A kind of nano fibrous membrane load nano zero valence iron composite material and preparation method |
| CN109622986A (en) * | 2018-12-26 | 2019-04-16 | 天津理工大学 | A kind of preparation method of copper-based modification infusorial earth |
| CN110153170A (en) * | 2019-05-23 | 2019-08-23 | 四川大学 | Composite material, preparation method and application for heavy metal-organic matter reparation |
| CN110451597A (en) * | 2019-07-31 | 2019-11-15 | 武汉科技大学 | A kind of nano zero valence iron@molecular sieves compound material and preparation method thereof and purposes |
| JP2020011211A (en) * | 2018-07-20 | 2020-01-23 | 株式会社フジタ | Method for producing adsorbent |
| CN110734134A (en) * | 2019-11-06 | 2020-01-31 | 合肥学院 | nanometer iron-nickel composite biological porous ceramsite, and preparation method and application thereof |
| CN110902770A (en) * | 2019-11-05 | 2020-03-24 | 东华大学 | Fe based on carbon cloth3O4/C, Fe/C, preparation and application thereof |
| CN111019669A (en) * | 2019-12-30 | 2020-04-17 | 华南理工大学 | Humic acid iron-based composite nano material and application thereof in chromium-contaminated soil remediation |
| CN111233071A (en) * | 2020-01-20 | 2020-06-05 | 中新曜昂环境修复(江苏)有限公司 | Composite PRB and method for treating heavy metal and organic pollutants in underground water |
| CN112456597A (en) * | 2020-10-21 | 2021-03-09 | 北京工业大学 | Method for removing hexavalent chromium in underground water by loading nano zero-valent iron on modified cellulose filter paper |
| CN112934176A (en) * | 2021-02-02 | 2021-06-11 | 暨南大学 | Zero-valent iron-manganese composite modified activated carbon and preparation method and application thereof |
| CN113634760A (en) * | 2021-07-22 | 2021-11-12 | 辽宁科技大学 | Production method and application for preparing activated carbon loaded nano zero-valent pure iron powder |
| CN115121806A (en) * | 2022-08-30 | 2022-09-30 | 华南理工大学 | Iron-based material and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537489A (en) * | 2008-03-20 | 2009-09-23 | 南开大学 | Nanometer zero-valent iron particle capable of stably existing in air, and preparation method thereof |
| CN101579745A (en) * | 2008-05-15 | 2009-11-18 | 南开大学 | Cladding nanometer iron stable in air and preparation method thereof |
| WO2009140694A2 (en) * | 2008-05-16 | 2009-11-19 | Verutek Technologies, Inc. | Green synthesis of nanometals using plant extracts and use thereof |
| CN101637718A (en) * | 2009-05-06 | 2010-02-03 | 福建师范大学 | Method for preparing kaoline loaded with nano-iron and application thereof |
| CN101648276A (en) * | 2009-08-31 | 2010-02-17 | 合肥工业大学 | Method for preparing nano iron by taking iron oxide as raw material and application of nano iron |
| CN101767206A (en) * | 2008-12-31 | 2010-07-07 | 中国科学院合肥物质科学研究院 | Method for synthetizing micro-nano zero-valent iron in accumulation medium |
-
2011
- 2011-03-28 CN CN2011100752071A patent/CN102205419A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537489A (en) * | 2008-03-20 | 2009-09-23 | 南开大学 | Nanometer zero-valent iron particle capable of stably existing in air, and preparation method thereof |
| CN101579745A (en) * | 2008-05-15 | 2009-11-18 | 南开大学 | Cladding nanometer iron stable in air and preparation method thereof |
| WO2009140694A2 (en) * | 2008-05-16 | 2009-11-19 | Verutek Technologies, Inc. | Green synthesis of nanometals using plant extracts and use thereof |
| CN101767206A (en) * | 2008-12-31 | 2010-07-07 | 中国科学院合肥物质科学研究院 | Method for synthetizing micro-nano zero-valent iron in accumulation medium |
| CN101637718A (en) * | 2009-05-06 | 2010-02-03 | 福建师范大学 | Method for preparing kaoline loaded with nano-iron and application thereof |
| CN101648276A (en) * | 2009-08-31 | 2010-02-17 | 合肥工业大学 | Method for preparing nano iron by taking iron oxide as raw material and application of nano iron |
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951718A (en) * | 2012-11-09 | 2013-03-06 | 华南理工大学 | Preparation method of modified zero-valence nano-iron suitable for underground water treatment |
| US9988285B2 (en) | 2013-07-12 | 2018-06-05 | Suzhou Micro Ceramics Heavy Metal Filter Technology Co., Ltd. | Filter material having a function of adsorbing and fixing arsenic and heavy metals |
| RU2619320C1 (en) * | 2013-07-12 | 2017-05-15 | Сучжоу Микро Керамикс Хеви Метал Филтер Текнолоджи Ко., Лтд. | Filtering material with arsenic and heavy metals adsorption and fixation function |
| WO2015003428A1 (en) * | 2013-07-12 | 2015-01-15 | 苏州微陶重金属过滤科技有限公司 | Filtering material having arsenic and heavy metal adsorbing and fixing functions, and application thereof and preparation method therefor |
| CN103331143B (en) * | 2013-07-12 | 2014-12-17 | 苏州微陶重金属过滤科技有限公司 | Arsenic removal filter material, preparation method of arsenic removal filter material and application of arsenic removal filter material in drinking water purification |
| CN103316626A (en) * | 2013-07-12 | 2013-09-25 | 苏州微陶重金属过滤科技有限公司 | Filtering material having arsenic and heavy metal adsorbing and fixing functions, and use thereof |
| CN103316626B (en) * | 2013-07-12 | 2015-01-21 | 苏州微陶重金属过滤科技有限公司 | Filtering material having arsenic and heavy metal adsorbing and fixing functions, and use thereof |
| CN103331143A (en) * | 2013-07-12 | 2013-10-02 | 苏州微陶重金属过滤科技有限公司 | Arsenic removal filter material, preparation method of arsenic removal filter material and application of arsenic removal filter material in drinking water purification |
| CN103721715A (en) * | 2013-11-28 | 2014-04-16 | 温州大学 | Activated charcoal loaded nano zero-valent iron material |
| CN103721715B (en) * | 2013-11-28 | 2016-02-03 | 温州大学 | A kind of load type active carbon zero-valent iron material |
| CN103706805A (en) * | 2013-12-26 | 2014-04-09 | 徐剑晖 | Method for preparing carbon material carrying nanometer multi-element metal |
| CN103920886A (en) * | 2014-05-06 | 2014-07-16 | 四川金沙纳米技术有限公司 | Method for producing ultra-fine iron powder |
| CN103920886B (en) * | 2014-05-06 | 2016-08-24 | 四川金沙纳米技术有限公司 | The production method of superfine iron powder |
| CN105013811A (en) * | 2015-07-02 | 2015-11-04 | 华南师范大学 | Preparation and application for heavy metal chromium contaminated soil remediation material |
| CN106378094A (en) * | 2016-11-18 | 2017-02-08 | 南京理工大学 | Preparation method of amino iron-carrying composite modified biochar |
| CN106811200A (en) * | 2017-01-13 | 2017-06-09 | 环保桥（湖南）生态环境修复有限公司 | A kind of complex repairation agent for reducing arsenic content in the crops of arsenic pollution area and preparation method thereof |
| CN106811200B (en) * | 2017-01-13 | 2020-04-24 | 环保桥（湖南）生态环境修复有限公司 | Composite repairing agent for reducing arsenic content in crops in arsenic-polluted area and preparation method thereof |
| CN106964197A (en) * | 2017-04-26 | 2017-07-21 | 吉林师范大学 | A kind of Supported On Granular Activated Carbon Nanoscale Iron composite filter element material and preparation method thereof |
| CN108160047A (en) * | 2018-01-02 | 2018-06-15 | 广东佳德环保科技有限公司 | A kind of coal-fired flue-gas goes the preparation method of the modified zeolite of the load nano zero valence iron of lead |
| JP7290401B2 (en) | 2018-07-20 | 2023-06-13 | 株式会社フジタ | Adsorbent manufacturing method |
| JP2020011211A (en) * | 2018-07-20 | 2020-01-23 | 株式会社フジタ | Method for producing adsorbent |
| CN109351321A (en) * | 2018-12-18 | 2019-02-19 | 北京服装学院 | A kind of nano fibrous membrane load nano zero valence iron composite material and preparation method |
| CN109622986A (en) * | 2018-12-26 | 2019-04-16 | 天津理工大学 | A kind of preparation method of copper-based modification infusorial earth |
| CN110153170A (en) * | 2019-05-23 | 2019-08-23 | 四川大学 | Composite material, preparation method and application for heavy metal-organic matter reparation |
| CN110451597A (en) * | 2019-07-31 | 2019-11-15 | 武汉科技大学 | A kind of nano zero valence iron@molecular sieves compound material and preparation method thereof and purposes |
| CN110902770A (en) * | 2019-11-05 | 2020-03-24 | 东华大学 | Fe based on carbon cloth3O4/C, Fe/C, preparation and application thereof |
| CN110734134A (en) * | 2019-11-06 | 2020-01-31 | 合肥学院 | nanometer iron-nickel composite biological porous ceramsite, and preparation method and application thereof |
| CN111019669A (en) * | 2019-12-30 | 2020-04-17 | 华南理工大学 | Humic acid iron-based composite nano material and application thereof in chromium-contaminated soil remediation |
| CN111233071A (en) * | 2020-01-20 | 2020-06-05 | 中新曜昂环境修复(江苏)有限公司 | Composite PRB and method for treating heavy metal and organic pollutants in underground water |
| CN112456597A (en) * | 2020-10-21 | 2021-03-09 | 北京工业大学 | Method for removing hexavalent chromium in underground water by loading nano zero-valent iron on modified cellulose filter paper |
| CN112934176A (en) * | 2021-02-02 | 2021-06-11 | 暨南大学 | Zero-valent iron-manganese composite modified activated carbon and preparation method and application thereof |
| CN113634760A (en) * | 2021-07-22 | 2021-11-12 | 辽宁科技大学 | Production method and application for preparing activated carbon loaded nano zero-valent pure iron powder |
| CN115121806A (en) * | 2022-08-30 | 2022-09-30 | 华南理工大学 | Iron-based material and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102205419A (en) | Novel method for preparing load nano zero valent iron | |
| Qu et al. | Applications of functionalized magnetic biochar in environmental remediation: A review | |
| Zubair et al. | Sustainable wastewater treatment by biochar/layered double hydroxide composites: Progress, challenges, and outlook | |
| Han et al. | Adsorbent materials for ammonium and ammonia removal: A review | |
| Qu et al. | Magnetic porous biochar with high specific surface area derived from microwave-assisted hydrothermal and pyrolysis treatments of water hyacinth for Cr (Ⅵ) and tetracycline adsorption from water | |
| Guo et al. | Reutilization of iron sludge as heterogeneous Fenton catalyst for the degradation of rhodamine B: Role of sulfur and mesoporous structure | |
| Sriram et al. | Ceria decorated porous diatom-xerogel as an effective adsorbent for the efficient removal of Eriochrome Black T | |
| Zhu et al. | Green sustainable and highly efficient hematite nanoparticles modified biochar-clay granular composite for Cr (VI) removal and related mechanism | |
| Yi et al. | Key role of FeO in the reduction of Cr (VI) by magnetic biochar synthesised using steel pickling waste liquor and sugarcane bagasse | |
| Liu et al. | Removal of Pb (II) and Cr (VI) from aqueous solutions using the fly ash-based adsorbent material-supported zero-valent iron | |
| Abd El-Monaem et al. | Zero-valent iron supported-lemon derived biochar for ultra-fast adsorption of methylene blue | |
| Wu et al. | Synthesis of polyethyleneimine modified CoFe2O4-loaded porous biochar for selective adsorption properties towards dyes and exploration of interaction mechanisms | |
| Li et al. | Simultaneous carbonization, activation, and magnetization for producing tea waste biochar and its application in tetracycline removal from the aquatic environment | |
| Sharma et al. | Utilization of Ag2O–Al2O3–ZrO2 decorated onto rGO as adsorbent for the removal of Congo red from aqueous solution | |
| Wang et al. | Rapid and efficient recovery of silver with nanoscale zerovalent iron supported on high performance activated carbon derived from straw biomass | |
| Tang et al. | Insights into enhanced removal of U (VI) by melamine sponge supported sulfurized nanoscale zero-valent iron | |
| Li et al. | Novel ball-milled biochar-vermiculite nanocomposites effectively adsorb aqueous As (Ⅴ) | |
| Zhang et al. | The tetracyclines removal by MgAl layered double oxide in the presence of phosphate or nitrate: Behaviors and mechanism exploration | |
| Pan et al. | One-step synthesis of easily-recoverable carboxylated biogas residues for efficient removal of heavy metal ions from synthetic wastewater | |
| He et al. | Removal of vanadium from vanadium-containing wastewater by amino modified municipal sludge derived ceramic | |
| Wang et al. | Biocrystal-encased manganese ferrite coupling with peroxydisulfate: synergistic mechanism of adsorption and catalysis towards tetracycline removal | |
| Sharma et al. | Reductive-co-precipitated cellulose immobilized zerovalent iron nanoparticles in ionic liquid/water for Cr (VI) adsorption | |
| Hu et al. | Self-cleaning MnZn ferrite/biochar adsorbents for effective removal of tetracycline | |
| Sun et al. | Facile preparation of hydroxyl‑rich mesoporous magnesium silicate with excellent adsorption performance | |
| Sha et al. | Removal of fluoride using platanus acerifoli leaves biochar–an efficient and low-cost application in wastewater treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111005 |