CN107376852A - A kind of preparation method of@FP composite adsorbing materials of HKUST 1 and its application in adsorption cleaning handles lead waste water - Google Patents

A kind of preparation method of@FP composite adsorbing materials of HKUST 1 and its application in adsorption cleaning handles lead waste water Download PDF

Info

Publication number
CN107376852A
CN107376852A CN201710762533.7A CN201710762533A CN107376852A CN 107376852 A CN107376852 A CN 107376852A CN 201710762533 A CN201710762533 A CN 201710762533A CN 107376852 A CN107376852 A CN 107376852A
Authority
CN
China
Prior art keywords
hkust
solution
composite adsorbing
waste water
lead
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.)
Granted
Application number
CN201710762533.7A
Other languages
Chinese (zh)
Other versions
CN107376852B (en
Inventor
王治科
陈海天
朱韵怡
叶存玲
范顺利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Normal University
Original Assignee
Henan Normal University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henan Normal University filed Critical Henan Normal University
Priority to CN201710762533.7A priority Critical patent/CN107376852B/en
Publication of CN107376852A publication Critical patent/CN107376852A/en
Application granted granted Critical
Publication of CN107376852B publication Critical patent/CN107376852B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/223—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material containing metals, e.g. organo-metallic compounds, coordination complexes
    • B01J20/226—Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3433—Regenerating or reactivating of sorbents or filter aids other than those covered by B01J20/3408 - B01J20/3425
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
    • B01J20/3475—Regenerating or reactivating using a particular desorbing compound or mixture in the liquid phase
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Application the invention discloses a kind of preparation method of@FP composite adsorbing materials of HKUST 1 and its in adsorption cleaning handles lead waste water, first by 3.114g Cu (NO3)·3H2O, which is dissolved in 22.5mL deionized waters, obtains solution A, by the benzenetricarboxylic acid ultrasonic dissolutions of 1.5g 1,3,5 in 45mL volume ratios be 1:1 absolute ethyl alcohol and N, solution B is obtained in the mixed solution of N dimethylformamides, solution A and solution B are mixed, and 4cm × 4cm filter paper is added in above-mentioned mixed system, transfer in polytetrafluoroethyllining lining reactor and react 12h in 90 DEG C, take out filter paper after the completion of reaction, rinsed repeatedly with deionized water, finally dry and composite adsorbing material is made, and specifically disclose application of the obtained composite adsorbing material in adsorption cleaning handles lead waste water.Preparation process technique of the present invention is simple and condition is controllable, obtained composite adsorbing material can selectively from waste water adsorpting lead ion, adsorbed again with 0.2mol/L thiourea solution desorption after absorption, after 5 times recycle, composite adsorbing material still has higher absorption property to lead.

Description

The preparation method of a kind of HKUST-1@FP composite adsorbing materials and its at adsorption cleaning Manage the application in lead waste water
Technical field
Adsorption cleaning processing technology field the invention belongs to the synthesis of composite adsorbing material and its for lead waste water, tool Body is related to a kind of preparation method of HKUST-1@FP composite adsorbing materials and its application in adsorption cleaning handles lead waste water.
Background technology
HKUST-1 chemical formula is：Cu3(C9H3O6)2, as a member in metal-organic framework materials, by Hong Kong science and technology The Williams professors of university synthesized first in 1999.In gas storage, biomedicine, magnetic composite, catalysis Show good application prospect with fields such as fluorescence.
Filter paper（Filter Paper, FP）The filtering material common as laboratory, there are some excellent characteristics：（1） It is cheap, it is readily obtained；（2）It is biodegradable, it is easily handled；（3）Good mechanical property；（4）The inside of filter paper has countless Aperture, play a part of capillary；（5）The cellulose of composition filter paper has substantial amounts of hydroxy functional group, these high activities A variety of chemical reactions can occur for hydroxyl.Therefore, filter paper is the good carrier for preparing functional composite material.
The content of the invention
Present invention solves the technical problem that there is provided a kind of HKUST-1@FP composite adsorbing materials preparation method and its HKUST-1 is loaded on filter paper and is successfully prepared HKUST-1@FP by the application in adsorption cleaning handles lead waste water, this method Composite adsorbing material, the lead that the HKUST-1@FP composite adsorbing materials can be used in selective absorption waste water, and after regeneration Being capable of repetitive cycling use.
The present invention is to solve above-mentioned technical problem to adopt the following technical scheme that, a kind of HKUST-1@FP composite adsorbing materials Preparation method, it is characterised in that concretely comprise the following steps：First by 3.114g Cu (NO3)·3H2O, which is dissolved in 22.5mL deionized waters, to be obtained To solution A, by the benzenetricarboxylic acid ultrasonic dissolutions of 1.5g 1,3,5- in 45mL volume ratios be 1:1 absolute ethyl alcohol and N, N- dimethyl Solution B is obtained in the mixed solution of formamide, solution A and solution B are mixed, and 4cm × 4cm filter paper is added to above-mentioned mix In zoarium system, transfer in polytetrafluoroethyllining lining reactor and react 12h in 90 DEG C, take out filter paper after the completion of reaction, spend Ionized water rinses repeatedly, finally dries and HKUST-1@FP composite adsorbing materials are made.
Application of the HKUST-1@FP composite adsorbing materials of the present invention in adsorption cleaning handles lead waste water, it is special Sign is that detailed process is：Adsorption process, HKUST-1@FP composite adsorbing materials are added in lead waste water, in 30 DEG C of absorption 300min realizes the adsorption cleaning processing of lead waste water；Desorption process, the HKUST-1@FP composite adsorbing materials after absorption are added Enter in the thiourea solution for being 0.2mol/L to molar concentration, after vibration desorption 24h, take out HKUST-1@FP composite adsorbing materials warp Repetitive cycling uses after deionized water rinsing.
Preparation process technique of the present invention is simple and condition is controllable, and obtained HKUST-1@FP composite adsorbing materials can select Property from waste water Adsorption of Lead, thiourea solution that the composite adsorbing material after absorption is 0.2mol/L with molar concentration desorption inhales again Attached, after 5 times recycle, HKUST-1@FP composite adsorbing materials still have higher absorption property to lead.
Brief description of the drawings
Fig. 1 is FP, HKUST-1 and HKUST-1@FP infrared spectrum；
Fig. 2 is FP, HKUST-1 and HKUST-1@FP XRD spectra；
Fig. 3 is FP SEM figures；
Fig. 4 is HKUST-1 SEM figures；
Fig. 5 is HKUST-1@FP SEM figures；
Fig. 6 is the kinetic curve of HKUST-1@FP Adsorption of Lead；
Fig. 7 is influence curve of the initial concentration to lead clearance；
Fig. 8 is influence curves of the pH to lead adsorption.
Embodiment
The above of the present invention is described in further details by the following examples, but this should not be interpreted as to this The scope for inventing above-mentioned theme is only limitted to following embodiment, and all technologies realized based on the above of the present invention belong to this hair Bright scope.
Embodiment 1
1st, the preparation of HKUST-1@FP composite adsorbing materials：
First by 3.114g Cu (NO3)·3H2O, which is dissolved in 22.5mL deionized waters, obtains solution A, by the benzene three of 1.5g 1,3,5- Formic acid ultrasonic dissolution is 1 in 45mL volume ratios:Solution is obtained in 1 absolute ethyl alcohol and the mixed solution of N,N-dimethylformamide B, solution A and solution B are mixed, and 4cm × 4cm filter paper is added in above-mentioned mixed system, be then transferred to polytetrafluoroethyl-ne 12h is reacted in 90 DEG C in alkene liner reactor, filter paper is taken out after the completion of reaction, is rushed repeatedly with deionized water, finally drying is made HKUST-1@FP composite adsorbing materials.
2nd, characterize：
Fig. 1 is FP, HKUST-1 and HKUST-1@FP infrared spectrum.As seen from the figure, the characteristic peak of the oh group on filter paper exists 3404cm-1Place, 2899cm-1What place represented is C-H stretching vibration.HKUST-1 infrared spectrum is in 1645cm-1The feature at place What peak represented is the asymmetric stretching vibration of the carbonyl group of part carboxylic acid.And HKUST-1@FP characteristic peak had both contained filter The characteristic peak of paper also contains HKUST-1 characteristic peak, illustrates that HKUST-1 successes are immobilized and has arrived on filter paper.
Fig. 2 is FP, HKUST-1 and HKUST-1@FP XRD spectra.HKUST-1@FP XRD spectra occur with HKUST-1 corresponds to consistent characteristic diffraction peak, while consistent characteristic diffraction peak corresponding with filter paper, this explanation also occurs HKUST-1 is successfully loaded on filter paper, prepares [email protected] crystal structure is not destroyed.
Fig. 3-5 is FP, HKUST-1 and HKUST-1@FP scanning electron microscope (SEM) photograph respectively.The shape characteristic significant difference of three. Filter paper fibre is high-visible, and HKUST-1 is into bulk, and HKUST-1 FP surfaces are not it is observed that filter paper fibre, block HKUST-1 is high-visible, and this explanation HKUST-1 is successfully loaded on filter paper.
3rd, absorption property：
Fig. 6 is the kinetic curve of HKUST-1@FP Adsorption of Lead.The adsorbent is fast to the adsorption rate of lead, and experiment condition is：Lead Initial concentration is respectively 200mg/L and 100mg/L, volume 50mL, HKUST-1@FP composite adsorbing material 200mg, temperature 30 DEG C, oscillation rate 160rpm.
Fig. 7 is influence curve of the initial concentration to lead clearance.In the range of wider initial concentration, lead clearance reaches More than 96%, experiment condition is：Volume is 50mL, HKUST-1@FP composite adsorbing material 200mg, 30 DEG C of temperature, oscillation rate 160rpm, time 300min.
Fig. 8 is influence curves of the pH to lead adsorption.Experiment condition is：Lead initial concentration is 200mg/L, and volume is 50mL, HKUST-1@FP composite adsorbing material 200mg, 30 DEG C, oscillation rate 160rpm, time 300min of temperature.
Table 1 is influence of other coexistent metallic ions to HKUST-1@FP Adsorption of Lead.As seen from table：In common metal ion Under conditions of coexisting, HKUST-1@FP remain to effectively adsorb to lead.Experiment condition is：Lead initial concentration is 200mg/L, other common It is 50mg/L to deposit concentration of metal ions, volume 50mL, HKUST-1@FP composite adsorbing material 200mg, 30 DEG C of temperature, is vibrated Speed 160rpm, time 300min.
Influence of the coexistent metallic ion of table 1 to HKUST-1@FP Adsorption of Lead
The regeneration cycle of HKUST-1@FP composite adsorbing materials uses
HKUST-1@FP after adsorpting lead ion are added in 0.2mol/L thiourea solution, after vibration desorption 24h, taken out HKUST-1@FP, are then added to through deionized water rinsing in lead ion initial concentration 200mg/L solution, vibration absorption 300min, so repeatedly absorption-elution-sorption cycle 5 times again.HKUST-1@FP are followed successively by the adsorbance of lead：46.9mg/g、 46.2mg/g, 45.1mg/g, 43.6mg/g and 42.7mg/g, this illustrates the HKUST-1@FP composite adsorbing materials through 5 repetitions Still there is higher adsorption capacity after use to lead.

Claims (2)

1. a kind of preparation method of HKUST-1@FP composite adsorbing materials, it is characterised in that concretely comprise the following steps：First by 3.114g Cu(NO3)·3H2O, which is dissolved in 22.5mL deionized waters, obtains solution A, by the benzenetricarboxylic acid ultrasonic dissolutions of 1.5g 1,3,5- in 45mL Volume ratio is 1:Solution B is obtained in 1 absolute ethyl alcohol and the mixed solution of DMF, solution A and solution B are mixed Close, and 4cm × 4cm filter paper is added in above-mentioned mixed system, transfer in polytetrafluoroethyllining lining reactor in 90 DEG C reaction 12h, takes out filter paper after the completion of reaction, is rinsed repeatedly with deionized water, finally dry and HKUST-1 FP compound suctions are made Enclosure material.
2. HKUST-1@FP composite adsorbing materials made from the method according to claim 11 are leaded useless in adsorption cleaning processing Application in water, it is characterised in that detailed process is：Adsorption process, HKUST-1@FP composite adsorbing materials are added to leaded useless In water, the adsorption cleaning processing that 300min realizes lead waste water is adsorbed in 30 DEG C；Desorption process, by the HKUST-1@FP after absorption Composite adsorbing material is added in the thiourea solution that molar concentration is 0.2mol/L, after vibration desorption 24h, takes out HKUST-1@FP Composite adsorbing material repetitive cycling after deionized water rinsing uses.
CN201710762533.7A 2017-08-30 2017-08-30 Preparation method of HKUST-1@ FP composite adsorption material and application of adsorption material in adsorption and purification treatment of lead-containing wastewater Expired - Fee Related CN107376852B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710762533.7A CN107376852B (en) 2017-08-30 2017-08-30 Preparation method of HKUST-1@ FP composite adsorption material and application of adsorption material in adsorption and purification treatment of lead-containing wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710762533.7A CN107376852B (en) 2017-08-30 2017-08-30 Preparation method of HKUST-1@ FP composite adsorption material and application of adsorption material in adsorption and purification treatment of lead-containing wastewater

Publications (2)

Publication Number Publication Date
CN107376852A true CN107376852A (en) 2017-11-24
CN107376852B CN107376852B (en) 2020-08-04

Family

ID=60348182

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710762533.7A Expired - Fee Related CN107376852B (en) 2017-08-30 2017-08-30 Preparation method of HKUST-1@ FP composite adsorption material and application of adsorption material in adsorption and purification treatment of lead-containing wastewater

Country Status (1)

Country Link
CN (1) CN107376852B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107880278A (en) * 2017-12-07 2018-04-06 宁波诺丁汉新材料研究院有限公司 A kind of porous level metal-organic framework material HKUST 1 preparation method
CN108786758A (en) * 2018-06-08 2018-11-13 河南师范大学 A kind of preparation method and applications of HKUST-1@PS compound adsorbents for selective absorption methylene blue
CN108854995A (en) * 2018-06-08 2018-11-23 河南师范大学 The preparation method and applications of HKUST-1@PMMA composite material of the one kind for adsorbing Pb (II)
CN110787778A (en) * 2019-11-01 2020-02-14 中国工程物理研究院材料研究所 Modified fiber ball filtering and adsorbing material and preparation method and application thereof
CN113368839A (en) * 2021-06-16 2021-09-10 南京工业大学 Polyaniline-modified organic metal framework heavy metal adsorbing material and preparation method thereof
CN115501862A (en) * 2022-09-20 2022-12-23 河南大学 Preparation method of wheat bran/HKUST-1 aerogel in aqueous solution

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103143331A (en) * 2013-03-12 2013-06-12 复旦大学 Synthetic method for magnetic metal organic framework composite material coated by [Cu3(btc)2] on surfaces of ferroferric oxide microspheres and application of composite material
CN103221126A (en) * 2011-03-31 2013-07-24 科学与工业研究委员会 Activated carbon-metal organic framework composite materials with enhanced gas adsorption capacity and process for the preparation thereof
CN103338858A (en) * 2010-08-25 2013-10-02 康奈尔大学 Metal organic framework modified materials, methods of making and methods of using same
CN104959116A (en) * 2015-06-12 2015-10-07 华南理工大学 MOFs (metal-organic frameworks) pulp fiber composite and forming and preparing method thereof
CN106622139A (en) * 2015-11-03 2017-05-10 中国石油化工股份有限公司 Metal organic framework material and preparation method and application thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103338858A (en) * 2010-08-25 2013-10-02 康奈尔大学 Metal organic framework modified materials, methods of making and methods of using same
CN103221126A (en) * 2011-03-31 2013-07-24 科学与工业研究委员会 Activated carbon-metal organic framework composite materials with enhanced gas adsorption capacity and process for the preparation thereof
CN103143331A (en) * 2013-03-12 2013-06-12 复旦大学 Synthetic method for magnetic metal organic framework composite material coated by [Cu3(btc)2] on surfaces of ferroferric oxide microspheres and application of composite material
CN104959116A (en) * 2015-06-12 2015-10-07 华南理工大学 MOFs (metal-organic frameworks) pulp fiber composite and forming and preparing method thereof
CN106622139A (en) * 2015-11-03 2017-05-10 中国石油化工股份有限公司 Metal organic framework material and preparation method and application thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EBRAHIM GHORBANI-KALHOR等: "A metal-organic framework nanocomposite made from functionalized magnetite nanoparticles and HKUST-1 (MOF-199) for preconcentration of Cd(II), Pb(II), and Ni(II)", 《MICROCHIM ACTA》 *
MARCIA DA SILVA PINTO等: "In situ synthesis of a Cu-BTC metal–organic framework (MOF 199) onto cellulosic fibrous substrates: cotton", 《CELLULOSE》 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107880278A (en) * 2017-12-07 2018-04-06 宁波诺丁汉新材料研究院有限公司 A kind of porous level metal-organic framework material HKUST 1 preparation method
CN107880278B (en) * 2017-12-07 2021-01-15 宁波诺丁汉新材料研究院有限公司 Preparation method of porous metal organic framework material HKUST-1
CN108786758A (en) * 2018-06-08 2018-11-13 河南师范大学 A kind of preparation method and applications of HKUST-1@PS compound adsorbents for selective absorption methylene blue
CN108854995A (en) * 2018-06-08 2018-11-23 河南师范大学 The preparation method and applications of HKUST-1@PMMA composite material of the one kind for adsorbing Pb (II)
CN110787778A (en) * 2019-11-01 2020-02-14 中国工程物理研究院材料研究所 Modified fiber ball filtering and adsorbing material and preparation method and application thereof
CN113368839A (en) * 2021-06-16 2021-09-10 南京工业大学 Polyaniline-modified organic metal framework heavy metal adsorbing material and preparation method thereof
CN115501862A (en) * 2022-09-20 2022-12-23 河南大学 Preparation method of wheat bran/HKUST-1 aerogel in aqueous solution
CN115501862B (en) * 2022-09-20 2023-11-21 河南大学 Preparation method of wheat bran/HKUST-1 aerogel in aqueous solution

Also Published As

Publication number Publication date
CN107376852B (en) 2020-08-04

Similar Documents

Publication Publication Date Title
CN107376852A (en) A kind of preparation method of@FP composite adsorbing materials of HKUST 1 and its application in adsorption cleaning handles lead waste water
He et al. Thiol-ene click chemistry synthesis of a novel magnetic mesoporous silica/chitosan composite for selective Hg (II) capture and high catalytic activity of spent Hg (II) adsorbent
Li et al. Synthesis and adsorption performance of La@ ZIF-8 composite metal–organic frameworks
Goyal et al. Nanostructured chitosan/molecular sieve-4A an emergent material for the synergistic adsorption of radioactive major pollutants cesium and strontium
Ahmad et al. A membrane‐supported bifunctional poly (amidoxime‐ethyleneimine) network for enhanced uranium extraction from seawater and wastewater
Qian et al. Synthesis of surface ion-imprinted magnetic microspheres by locating polymerization for rapid and selective separation of uranium (VI)
CN110237820B (en) Preparation method and application of microwave-assisted magnetic hollow Zn/Co zeolite imidazole nanocage material
CN105709690A (en) Adsorbent capable of preferentially adsorbing gold and preparing method and application thereof
CN102553523A (en) Nano zero-valent iron-supported activated carbon fiber, and preparation method and application thereof
Xiong et al. Microwave hydrothermal synthesis of gallotannin/carbon nanotube composites for the recovery of gallium ion
CN105597686B (en) Fe3O4@MIL-100（Fe）Preparation method and applications
CN109174034A (en) A kind of copper ion blotting chitosan/sodium carboxymethylcellulose compound adsorbent and preparation method thereof
CN109261141A (en) A kind of ZIF-8 is nanocrystalline and its preparation method and application
Wang et al. Highly effective and selective adsorption of Au (III) from aqueous solution by poly (ethylene sulfide) functionalized chitosan: Kinetics, isothermal adsorption and thermodynamics
CN104307481A (en) Magnetic MOFs solid-phase extractant, and preparation method and application thereof
CN112934164A (en) Magnetic phosphorus removal adsorbent and preparation method and application thereof
Cui et al. Microwave-assisted one-pot rapid synthesis of mesoporous silica-chitosan composites for efficient recovery of rhenium (Ⅶ)
CN103272553A (en) Preparation method of magnetic nanometer iron oxide adsorbent for removing arsenic from water
Qu et al. Adsorption of Ni 2+ and Pb 2+ from water using diethylenetriamine-grafted Spirodela polyrhiza: behavior and mechanism studies
CN102350307B (en) Preparation method of hybrid nano film
CN109621910A (en) Nano zero valence iron-metal organic frame core-shell material preparation method and applications
CN103638907B (en) A kind of magnetic biological adsorption agent for anionic dyes in water
CN107413366A (en) A kind of preparation method of phenol hydrogenation catalyst
Song et al. Synthesis of novel diol modified chitosan and their enhanced selective adsorption behavior for germanium (Ⅳ)
Mehdi et al. Adsorption of cadmium ions on silica coated metal organic framework

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200804

Termination date: 20210830