Bismuth-doped metal sulfide nanoflower and preparation method thereof

A technology of metal sulfide and nanoflowers, which is applied in the field of composite materials, can solve the problems of complex synthesis of metal sulfide materials, single function, and limited photothermal conversion efficiency, and achieve the effects of low cost, simple reaction process, and simple preparation process

Active Publication Date: 2019-08-09
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of complex synthesis of metal sulfide materials, limited photothermal conversion efficiency and single function in the prior art, and provide a bismuth-doped metal sulfide nanoflower and its preparation method

Method used

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  • Bismuth-doped metal sulfide nanoflower and preparation method thereof
  • Bismuth-doped metal sulfide nanoflower and preparation method thereof
  • Bismuth-doped metal sulfide nanoflower and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0042] The preparation method of the metal sulfide nanoflower doped with bismuth, its specific steps are as follows:

[0043] (1) BiCl with a molar ratio of 0.9:0.9 3 with MnCl 2 4H 2 O is dissolved in deionized water together to form a solution of A with a mass concentration of 10 mg / mL; K with a molar ratio of 0.9:0.9 4 [Fe(CN) 6 ]·3H 2 O and citric acid were dissolved in deionized water to form a B solution with a mass concentration of 10 mg / mL;

[0044] (2) Heating the A solution and the B solution to 50° C., and magnetically stirring the A solution and the B solution;

[0045] (3) Add solution B to solution A drop by drop, keep the temperature and stir vigorously at a stirring speed of 600rpm. After the color of the solution gradually turns bright green, cool to room temperature naturally, wash with ethanol for 3 times, and then use deionized water Wash 3 times until the supernatant after centrifugation is colorless and clear, collect the intermediate particles by c...

Embodiment 2

[0058] The preparation method of the metal sulfide nanoflower doped with bismuth, its specific steps are as follows:

[0059] (1) BiCl with a molar ratio of 1.1:1.1 3 with MnCl 2 4H 2 O was dissolved in deionized water together to form a solution of A with a mass concentration of 15 mg / mL; K with a molar ratio of 1.1:1.1 4 [Fe(CN) 6 ]·3H 2 O and citric acid were dissolved in deionized water to form a B solution with a mass concentration of 15 mg / mL;

[0060] (2) Heating the A solution and the B solution to 80° C., and magnetically stirring the A solution and the B solution;

[0061] (3) Add solution B to solution A drop by drop, keep the temperature and stir vigorously at a stirring speed of 650rpm. After the color of the solution gradually turns bright green, cool it down to room temperature naturally, wash it with ethanol for 3 times, and then use deionized water. Wash 3 times until the supernatant after centrifugation is colorless and clear, collect the intermediate p...

Embodiment 3

[0067] The preparation method of the metal sulfide nanoflower doped with bismuth, its specific steps are as follows:

[0068] (1) BiCl with a molar ratio of 1.0:1.0 3 with MnCl 2 4H 2 O was dissolved together in deionized water to form a solution of A with a mass concentration of 12 mg / mL; K with a molar ratio of 1.0:1.0 4 [Fe(CN) 6 ]·3H 2 O and citric acid were dissolved together in deionized water to form a B solution with a mass concentration of 12 mg / mL;

[0069] (2) Heating the A solution and the B solution to 60° C., and magnetically stirring the A solution and the B solution;

[0070] (3) Add solution B to solution A drop by drop, keep the temperature and stir vigorously at a stirring speed of 700rpm. After the solution color gradually turns bright green, cool to room temperature naturally, wash with ethanol for 3 times, and then use deionized water Wash 3 times until the supernatant after centrifugation is colorless and clear, collect the intermediate particles b...

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Abstract

The invention relates to a bismuth-doped metal sulfide nanoflower and a preparation method thereof. The preparation method comprises the steps that a solution system containing both intermediate particles and ammonium thiomolybdic tetrahydrate is subjected to a solvothermal reaction to obtain the bismuth-doped metal sulfide nanoflower; the intermediate particles are generated by mixing an A solution and a B solution, wherein the A solution is mainly composed of BiCl3, MnCl2 4H2O and deionized water, and the B solution is mainly composed of K4[Fe(CN)6] 3H2O, citric acid and deionized water; thefinally prepared bismuth-doped metal sulfide nanoflower is of a nanoflower structure formed by winding and twisting nanosheets, wherein the nanosheets are doping type metal sulfide nanosheets obtained through mutual substitution and mosaicism of elemental bismuth, bismuth sulfide, manganese sulfide, ferrous sulfide and molybdenum sulfide on a two-dimensional structure. The preparation method is simple, the prepared nanoflower can achieve the effect that a single structure has multiple functions, and the photothermal conversion efficiency is higher.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a bismuth-doped metal sulfide nanoflower and a preparation method thereof, in particular to a kind of polyethylene glycol modified by elemental bismuth, bismuth sulfide, manganese sulfide, sulfide Bismuth-doped metal sulfide nanoflowers in which iron and molybdenum sulfide jointly constitute petals of nanoflowers and a preparation method thereof. Background technique [0002] The transition metal sulfide with two-dimensional structure is a compound of X-M-X type "sandwich" structure composed of transition group metal elements (M) and chalcogen nonmetal elements (X). The preparation methods generally include mechanical exfoliation, vapor deposition, Hydrothermal synthesis, intercalation exfoliation or liquid phase exfoliation, etc. Because metal sulfides, especially transition metal sulfides, have many unique physical and chemical properties, such as large specific surf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K41/00A61K31/704A61K9/51A61K47/36A61K47/10A61K47/34A61K47/69A61K47/62A61P35/00A61K49/04A61K49/22A61K49/12A61K49/18A61K49/00
CPCA61K9/5146A61K9/5161A61K31/704A61K41/0052A61K41/0057A61K49/0002A61K49/04A61K49/126A61K49/186A61K49/222A61K47/62A61K47/6935A61K47/6939A61P35/00A61K2300/00
Inventor 刘锡建任兰芳陆杰
Owner SHANGHAI UNIV OF ENG SCI
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