CN107362767A - A kind of method of transient metal sulfide absorption mercury ion with broadening piece interlamellar spacing - Google Patents
A kind of method of transient metal sulfide absorption mercury ion with broadening piece interlamellar spacing Download PDFInfo
- Publication number
- CN107362767A CN107362767A CN201610318002.4A CN201610318002A CN107362767A CN 107362767 A CN107362767 A CN 107362767A CN 201610318002 A CN201610318002 A CN 201610318002A CN 107362767 A CN107362767 A CN 107362767A
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- CN
- China
- Prior art keywords
- mercury ion
- interlamellar spacing
- metal sulfide
- piece interlamellar
- transient metal
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- 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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0262—Compounds of O, S, Se, Te
- B01J20/0266—Compounds of S
-
- 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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0214—Compounds of V, Nb, Ta
-
- 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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0218—Compounds of Cr, Mo, W
-
- 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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic 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
Abstract
The present invention relates to a kind of method of the transient metal sulfide absorption mercury ion with broadening piece interlamellar spacing, belong to mercury ion adsorbent field.Solves the technical problem that conventional transition metal sulfide is difficult the absorption for being directly used in mercury ion.This method includes:Step 1, the transient metal sulfide of broadening piece interlamellar spacing is chosen as mercury ion adsorbent;The piece interlamellar spacing of the transient metal sulfide is more than the hydrated diameter of mercury ion;Step 21, the transient metal sulfide powder of the broadening piece interlamellar spacing of selection is distributed in the water containing mercury ion, stirred, absorption, go after supernatant to complete the absorption of mercury ion;Or step 22, the transient metal sulfide powder of the broadening piece interlamellar spacing of selection is loaded into pillar, adsorption column is fabricated to, then the waste water containing mercury ion is completed to the absorption of mercury ion by adsorption column.Method provided by the invention can be effectively prevented from the shortcomings that conventional transition metal sulfide so that mercury ion adsorption effect is largely increased.
Description
Technical field
The present invention relates to a kind of mercury ion adsorbent field, and in particular to a kind of transition with broadening piece interlamellar spacing
The method that metal sulfide adsorbs mercury ion.
Background technology
Efficiently remove the significant challenge that water body mercury ion is still public health and environmental protection faces.
It is presently most effective approach using adsorbent Adsorption mercury ion for mercury ion removal.When
Preceding commercialized adsorbent mainly active charcoal, zeolite, clay etc., however these adsorbents generally have it is low
Mercury ion adsorption capacity, difference selectivity, weak binding ability the shortcomings of.It is current to solve to do based on this
Method is divided into three classes:When by S be grafted onto it is many have loose structure, big specific surface area sorbing material in,
To improve mercury ion absorption property.Such as by the way that S is introduced into activated carbon, porous silica silicon materials;Second,
The synthesis porous material containing S, such as synthesize the organic metal framework material with S, contain the covalent of S in itself
Organic porous material;Third, the aerosol of synthesis precious metal, such as Pt-S aerosols etc..Nevertheless, this
A little methods generally require presoma of the synthesizing of multistep, complicated preparation process and costliness etc..
Transient metal sulfide is a kind of metal sulfide with lamellar structure, has S-M-S inside its lamella
Sandwich structure composition, sulphur atom and transition metal form close covalent bond, and are only deposited between lamella
In faint Van der Waals force.Transient metal sulfide includes substantial amounts of S elements, therefore is a kind of potential absorption
Agent.But the hydrated diameter for being smaller than mercury ion between the lamella of this sulfide, therefore transition gold
It is difficult the absorption for being directly used in mercury ion to belong to sulfide.For example, study most commonly used transition metal vulcanization molybdenum
Spacing between sheet of material only has 0.29 nanometer, less than the hydrated diameter (as shown in Figure 1) of mercury ion.
The content of the invention
It is difficult the absorption for being directly used in mercury ion the invention solves conventional transition metal sulfide in the prior art
Technical problem, there is provided it is a kind of with broadening piece interlamellar spacing transient metal sulfide absorption mercury ion method.
In order to solve the above-mentioned technical problem, technical scheme is specific as follows:
A kind of method of transient metal sulfide absorption mercury ion with broadening piece interlamellar spacing, comprises the following steps:
Step 1, the transient metal sulfide of broadening piece interlamellar spacing is chosen as mercury ion adsorbent;The broadening
The piece interlamellar spacing of the transient metal sulfide of piece interlamellar spacing is more than the hydrated diameter of mercury ion;
Step 2-1, the transient metal sulfide powder of the broadening piece interlamellar spacing of selection is distributed to containing mercury ion
Water in, stir, absorption, go after supernatant to complete the absorption of mercury ion;
Or step 2-2, the transient metal sulfide powder of the broadening piece interlamellar spacing of selection is loaded into pillar,
Adsorption column is fabricated to, then the waste water containing mercury ion is completed to the absorption of mercury ion by adsorption column.
In the above-mentioned technical solutions, the piece interlamellar spacing of the transient metal sulfide of the broadening piece interlamellar spacing is
0.35nm-1.2nm。
In the above-mentioned technical solutions, the transient metal sulfide of the broadening piece interlamellar spacing is MoS2、WS2Or
TaS2。
In the above-mentioned technical solutions, the transient metal sulfide for the broadening piece interlamellar spacing for having adsorbed mercury ion is soaked
Enter into hydrochloric acid solution, be washed with water hydrochloric acid, be repeated 3 times the above so that mercury ion removes from adsorbent.
The beneficial effects of the invention are as follows:
It is provided by the invention it is a kind of with broadening piece interlamellar spacing transient metal sulfide adsorb mercury ion method be
Using piece interlamellar spacing be more than mercury ion hydrated diameter big lamellar structure transient metal sulfide Adsorption of Mercury from
Son, when the piece interlamellar spacing of transient metal sulfide is more than the hydrated diameter of mercury ion, mercury ion can be effectively
It is be combined with each other with the S elements inside transient metal sulfide by the effect of coordination so that mercury ion can be effectively
Effectively adsorbed inside into transient metal sulfide, so that the adsorption effect of mercury ion has obtained pole
Big increase.With MoS2Exemplified by, as shown in Fig. 2 the MoS with broadening piece interlamellar spacing2Piece interlamellar spacing be
0.615 nanometer, more than mercury ion hydrated diameter, hence in so that substantial amounts of mercury ion can be adsorbed inside its lamella.
The transient metal sulfide of the broadening piece interlamellar spacing is used directly for Mercury in Water Body ion and efficiently inhaled
Attached dose, the processing for carrying out flowing water sample in corresponding pillar can also be filled into directly as carrier and adsorbent.
The mistake of broadening piece interlamellar spacing in the present invention using a series of interlamellar spacing between 0.35nm-1.2nm
Cross metal sulfide such as MoS2、WS2Or TaS2As mercury ion adsorbent, extraordinary absorption is respectively provided with
Effect.
From the point of view of carrying capacity of environment, economy, living again for mercury ion adsorbent has great importance.
The present invention is by the transient metal sulfide by the broadening piece interlamellar spacing of mercury ion has been adsorbed using hydrochloric acid cleaning
Method so that mercury ion removes from adsorbent, makes it adsorb the ability of mercury ion and is effectively recovered.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is existing MoS2Lamellar structure figure, its lamella is smaller than the hydrated diameter of mercury ion.
A-d is the MoS for widening piece interlamellar spacing in Fig. 22, e-h is the MoS for having normal lamellar structure2。
Fig. 3 handles the schematic diagram of mercurous ion waste water with the transient metal sulfide adsorption column of broadening piece interlamellar spacing.
Embodiment
Embodiment 1
By the MoS that 10mg pieces interlamellar spacing is 0.615 nanometer2Powder be distributed to 100 milliliters of mercury containing 10ppm from
In the water of son, stirring, adsorb 24 hours, remove supernatant, ICP tests are carried out to supernatant.
Embodiment 2
By the 10mg commercially available MoS with normal piece interlamellar spacing2Powder is distributed to 100 milliliters and contained
In the water of 10ppm mercury ion, stirring, adsorb 24 hours, remove supernatant, ICP tests are carried out to supernatant.
Embodiment 3
By the WS that 10mg pieces interlamellar spacing is 0.35 nanometer2Powder is distributed to 100 milliliters of mercury ions containing 10ppm
Water in, stirring, adsorb 24 hours, remove supernatant, to supernatant carry out ICP tests.
Embodiment 4
By the 10mg commercially available WS with normal piece interlamellar spacing2Powder is distributed to 100 milliliters and contained
In the water of 10ppm mercury ion, stirring, adsorb 24 hours, remove supernatant, ICP tests are carried out to supernatant.
Embodiment 5
By the TaS that 10mg pieces interlamellar spacing is 1.2 nanometers2Powder is distributed to 100 milliliters of mercury ions containing 10ppm
Water in, stirring, adsorb 24 hours, remove supernatant, to supernatant carry out ICP tests.
Embodiment 6
By the 10mg commercially available TaS with normal piece interlamellar spacing2Powder is distributed to 100 milliliters and contained
In the water of 10ppm mercury ion, stirring, adsorb 24 hours, remove supernatant, ICP tests are carried out to supernatant.
Embodiment 7
Calculating (the K of coefficient is allocated to embodiment 1-6 by following formuladValue),
V represents the volume of solution, and m represents the weight of adsorbent, CiRepresent initial ion concentration of mercury, CeTable
Show concentration during final adsorption equilibrium.KdIt is as shown in table 1 to be worth result.Transition metal with broadening piece interlamellar spacing
Sulfide (MoS2、WS2、TaS2) the high 4-5 number of transient metal sulfide with than normal piece interlamellar spacing
The K of magnitudedValue.
Table 1
Embodiment | KdValue |
Embodiment 1 | 3.53X108 |
Embodiment 2 | 4.35X103 |
Embodiment 3 | 1.22X108 |
Embodiment 4 | 6.12X102 |
Embodiment 5 | 7.68X107 |
Embodiment 6 | 3.92X102 |
Embodiment 8
It is 0.615 nanometer of MoS directly by piece interlamellar spacing2Powder is loaded into pillar, is fabricated to adsorption column,
Waste water containing mercury ion is passed through into pillar (shown in Fig. 3).
Embodiment 9
It is 0.35 nanometer of WS directly by piece interlamellar spacing2Powder is loaded into pillar, is fabricated to adsorption column, will
Waste water containing mercury ion passes through pillar.
Embodiment 10
It is 1.2 nanometers of TaS directly by piece interlamellar spacing2Powder is loaded into pillar, is fabricated to adsorption column, will
Waste water containing mercury ion passes through pillar.
Embodiment 11
By the waste water handled by embodiment 8-10, ICP tests are carried out, to check the mistake with broadening piece interlamellar spacing
Cross disposal ability of the adsorption column to mercurous ion waste water of metal sulfide loading.As shown in table 2, these have
The transient metal sulfide adsorption column for widening piece interlamellar spacing can be effectively by mercury-containing waste water processing to meeting drinking water
Standard.
Table 2
Adsorbent is lived again
Embodiment 12
The MoS for being 0.615 nanometer by the piece interlamellar spacing for having adsorbed mercury ion2Powder, immerse hydrochloric acid solution
2 hours in (0.1M-12M), hydrochloric acid is then washed with water, is repeated 3 times.
Embodiment 13
The WS for being 0.35 nanometer by the piece interlamellar spacing for having adsorbed mercury ion2Powder, immerse hydrochloric acid solution
2 hours in (0.1M-12M), hydrochloric acid is then washed with water, is repeated 3 times.
Embodiment 14
The TaS for being 1.2 nanometers by the piece interlamellar spacing for having adsorbed mercury ion2Powder, immerse hydrochloric acid solution
2 hours in (0.1M-12M), hydrochloric acid is then washed with water, is repeated 3 times.
Embodiment 15
The adsorbent that embodiment 12-14 is lived again carries out KdValue test, gained KdValue (such as table 3) shows it
Absorption property is recovered.
Table 3
Embodiment | Original KdValue | K after living againdValue |
Embodiment 12 | 3.53X108 | 2.88X108 |
Embodiment 13 | 1.22X108 | 1.05X108 |
Embodiment 14 | 7.68X107 | 6.68X107 |
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to embodiment
Limit.For those of ordinary skill in the field, it can also be made on the basis of the above description
Its various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And by
Among this obvious changes or variations extended out is still in the protection domain of the invention.
Claims (4)
1. a kind of method of transient metal sulfide absorption mercury ion with broadening piece interlamellar spacing, it is characterised in that
Comprise the following steps:
Step 1, the transient metal sulfide of broadening piece interlamellar spacing is chosen as mercury ion adsorbent;The broadening
The piece interlamellar spacing of the transient metal sulfide of piece interlamellar spacing is more than the hydrated diameter of mercury ion;
Step 2-1, the transient metal sulfide powder of the broadening piece interlamellar spacing of selection is distributed to containing mercury ion
Water in, stir, absorption, go after supernatant to complete the absorption of mercury ion;
Or step 2-2, the transient metal sulfide powder of the broadening piece interlamellar spacing of selection is loaded into pillar,
Adsorption column is fabricated to, then the waste water containing mercury ion is completed to the absorption of mercury ion by adsorption column.
2. the transient metal sulfide absorption mercury ion according to claim 1 with broadening piece interlamellar spacing
Method, it is characterised in that the piece interlamellar spacing of transient metal sulfide of the broadening piece interlamellar spacing is
0.35nm-1.2nm。
3. the transient metal sulfide absorption mercury ion according to claim 1 with broadening piece interlamellar spacing
Method, it is characterised in that the transient metal sulfide of the broadening piece interlamellar spacing is MoS2、WS2Or TaS2。
4. the transient metal sulfide with broadening piece interlamellar spacing according to claim 1-3 any one adsorbs
The method of mercury ion, it is characterised in that vulcanize the transition metal for the broadening piece interlamellar spacing for having adsorbed mercury ion
Thing is immersed in hydrochloric acid solution, is washed with water hydrochloric acid, is repeated 3 times the above so that mercury ion is from adsorbent
Remove.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108187451A (en) * | 2018-01-29 | 2018-06-22 | 中南大学 | A kind of method of nanometer of material molybdenum sulfide wet method removing gaseous elemental mercury |
CN109115764A (en) * | 2018-07-30 | 2019-01-01 | 深圳瑞达生物股份有限公司 | Environment-friendly type urine oxybenzene derivative detection reagent and preparation method thereof |
CN115463638A (en) * | 2022-07-11 | 2022-12-13 | 景德镇学院 | (002) interplanar spacing broadening and multi-defect MoS 2 Preparation method of adsorbent, product and application thereof |
Citations (1)
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CN103623771A (en) * | 2013-12-02 | 2014-03-12 | 上海交通大学 | Waste solution mercury removal adsorbent, preparation method and application method thereof |
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2016
- 2016-05-13 CN CN201610318002.4A patent/CN107362767A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103623771A (en) * | 2013-12-02 | 2014-03-12 | 上海交通大学 | Waste solution mercury removal adsorbent, preparation method and application method thereof |
Non-Patent Citations (1)
Title |
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HAESUK HWANG等: ""MoS2 Nanoplates Consisting of Disordered Graphene-like Layers for High Rate Lithium Battery Anode Materials"", 《NANO LETT.》 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108187451A (en) * | 2018-01-29 | 2018-06-22 | 中南大学 | A kind of method of nanometer of material molybdenum sulfide wet method removing gaseous elemental mercury |
CN108187451B (en) * | 2018-01-29 | 2020-06-26 | 中南大学 | Method for removing gaseous elementary mercury from nano molybdenum sulfide material by wet method |
CN109115764A (en) * | 2018-07-30 | 2019-01-01 | 深圳瑞达生物股份有限公司 | Environment-friendly type urine oxybenzene derivative detection reagent and preparation method thereof |
CN109115764B (en) * | 2018-07-30 | 2021-06-15 | 深圳瑞达生物股份有限公司 | Environment-friendly urine hydroxyphenyl derivative detection reagent and preparation method thereof |
CN115463638A (en) * | 2022-07-11 | 2022-12-13 | 景德镇学院 | (002) interplanar spacing broadening and multi-defect MoS 2 Preparation method of adsorbent, product and application thereof |
CN115463638B (en) * | 2022-07-11 | 2023-11-14 | 景德镇学院 | (002) interplanar spacing broadening and multi-defect MoS 2 Preparation method of adsorbent, and product and application thereof |
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Application publication date: 20171121 |