CN106315664A - Synthesis method of nano-zinc oxide photocatalyst - Google Patents

Synthesis method of nano-zinc oxide photocatalyst Download PDF

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Publication number
CN106315664A
CN106315664A CN201610655603.4A CN201610655603A CN106315664A CN 106315664 A CN106315664 A CN 106315664A CN 201610655603 A CN201610655603 A CN 201610655603A CN 106315664 A CN106315664 A CN 106315664A
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China
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nano
synthesis method
distilled water
zinc oxide
temperature
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CN201610655603.4A
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Chinese (zh)
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潘忠宁
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Individual
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G9/00—Compounds of zinc
    • C01G9/02—Oxides; Hydroxides
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)

Abstract

The invention provides a synthesis method of a nano-zinc oxide photocatalyst. The synthesis method comprises the steps that 3.3 g of Zn(Ac)2.2H2O and 0.27 g of CTAB are weighed and put into a 100-mL beaker, 30 mL of absolute ethyl alcohol and 30 mL of distilled water are added, 2 mL of H2O2 and 3.5 mL of NH3.H2O are dropwise added into the solution under vigorous stirring, and stirring is conducted for 20 min; the solution is poured into a 100-mL polytetrafluoroethylene high pressure reactor, and reacting is conducted for 18 h at the temperature of 140 DEG C to 145 DEG C; a reactant is cooled to room temperature, washed with distilled water and absolute ethyl alcohol sequentially, dried for 2.5-3.5 h at the temperature of 70 DEG C to 75 DEG C, calcined for 1-1.5 h at the temperature of 45 DEG C to 50 DEG C and ground, and then white nano-ZnO is obtained. The synthesis method has the advantages that the process is simple, calcination treatment is not needed, the cost is low, the purity is high, the crystallinity and the crystal form are good, and the shape is controllable.

Description

A kind of synthetic method of nano zinc oxide photocatalyst
Technical field
The present invention relates to material synthesis method, the synthetic method of a kind of nano zinc oxide photocatalyst.
Background technology
TiO is found since Fujishima etc.2Can be since photocatalytic hydrogen production by water decomposition, Photocatalitic Technique of Semiconductor has Solve the potentiality of energy and environment problem, it has also become a most active research in photochemistry field and field of environment protection simultaneously Field.Nano-ZnO is as typical II-VI race's semi-conducting material of one, and under room temperature, energy gap is 3.37eV, exciton confinement Can be 60meV, have nontoxic, cheap, chemical stability is good, catalytic is high and the advantage such as non-secondary pollution, at ring The aspects such as environment pollution process, photo-catalyst, photoelectricity, solaode, gas sensor have broad application prospects.? In the most numerous nano-ZnO preparation methoies, hydro-thermal method have technique simple, high without calcination processing, low cost, purity, Better crystallinity degree, crystal formation be good and the advantage such as morphology controllable and be used widely.
Summary of the invention
The technical problem to be solved is to provide the synthetic method of a kind of nano zinc oxide photocatalyst, it is provided that A kind of new synthetic method.
The synthetic method that the present invention uses, comprises the steps:
Weigh 3.3gZn(Ac)2·2H2O and 0.27gCTAB is placed in the beaker of 100mL, adds 30mL dehydrated alcohol and 30mL Distilled water, with vigorous stirring, is added dropwise over 2mLH in above-mentioned solution respectively2O2With 3.5mLNH3 H2O, stirs 20min, Pour in 100mL politef autoclave, react 18h at 140-145 DEG C, be cooled to room temperature, successively with distilled water and Absolute ethanol washing, is dried 2.5-3.5h at 70-75 DEG C, calcine 1-1.5h, grind and i.e. obtain white nanometer under the conditions of 45-50 DEG C ZnO。
The invention has the beneficial effects as follows: have technique simple, without calcination processing, low cost, purity height, better crystallinity degree, crystalline substance Type is good and the advantage such as morphology controllable.
Detailed description of the invention
Further illustrating present disclosure below in conjunction with example, as known by the technical knowledge, the present invention also can pass through other The scheme without departing from the technology of the present invention feature describe, the most all within the scope of the present invention or equivalent the scope of the invention in Change and be all included in the invention.
Embodiment 1:
Weigh 3.3gZn(Ac)2·2H2O and 0.27gCTAB is placed in the beaker of 100mL, adds 30mL dehydrated alcohol and 30mL Distilled water, with vigorous stirring, is added dropwise over 2mLH in above-mentioned solution respectively2O2With 3.5mLNH3 H2O, stirs 20min, Pour in 100mL politef autoclave, react 18h at 140 DEG C, be cooled to room temperature, successively with distilled water and anhydrous Washing with alcohol, is dried 2.5h at 70 DEG C, calcine 1h, grind and i.e. obtain white nano-ZnO under the conditions of 45 DEG C.
Embodiment 2:
Weigh 3.3gZn(Ac)2·2H2O and 0.27gCTAB is placed in the beaker of 100mL, adds 30mL dehydrated alcohol and 30mL Distilled water, with vigorous stirring, is added dropwise over 2mLH in above-mentioned solution respectively2O2With 3.5mLNH3 H2O, stirs 20min, Pour in 100mL politef autoclave, react 18h at 145 DEG C, be cooled to room temperature, successively with distilled water and anhydrous Washing with alcohol, is dried 3.5h at 75 DEG C, calcine 1.5h, grind and i.e. obtain white nano-ZnO under the conditions of 50 DEG C.
The present invention uses straightforward procedure to synthesize the flower-shaped ZnO nanorod of hexagonal crystal system, and purity is high, and good dispersion, 20 ML concentration be 10mg/L methyl orange solution in add 20mg nano-ZnO, methyl orange is in Photocatalytic Degradation Process Absorbance at maximum absorption wavelength 464nm weakens rapidly, and during illumination 100min, its photocatalytic activity reaches 83.5%, show that prepared nano-ZnO has good photocatalysis performance.Nano-ZnO has many excellent property And prospect can be widely applied, along with development and being continually striving to of numerous scientists of science and technology, it is contemplated that will be in photocatalysis, too The fields such as sun energy battery, antibacterial and antibacterial, gas sensor and biological medicine show wider application prospect.

Claims (1)

1. the synthetic method of a nano zinc oxide photocatalyst, it is characterised in that: weigh 3.3gZn(Ac)2·2H2O and 0.27gCTAB is placed in the beaker of 100mL, adds 30mL dehydrated alcohol and 30mL distilled water, with vigorous stirring, to above-mentioned molten Liquid is added dropwise over 2mLH respectively2O2With 3.5mLNH3 H2O, stirs 20min, pours 100mL politef autoclave into In, react 18h at 140-145 DEG C, be cooled to room temperature, successively with distilled water and absolute ethanol washing, at 70-75 DEG C, be dried 2.5- Calcine 1-1.5h under the conditions of 3.5h, 45-50 DEG C, grind and i.e. obtain white nano-ZnO.
CN201610655603.4A 2016-08-11 2016-08-11 Synthesis method of nano-zinc oxide photocatalyst Pending CN106315664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610655603.4A CN106315664A (en) 2016-08-11 2016-08-11 Synthesis method of nano-zinc oxide photocatalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610655603.4A CN106315664A (en) 2016-08-11 2016-08-11 Synthesis method of nano-zinc oxide photocatalyst

Publications (1)

Publication Number Publication Date
CN106315664A true CN106315664A (en) 2017-01-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112076768A (en) * 2020-08-26 2020-12-15 广东工业大学 Lead-cesium bromide quantum dot modified zinc oxide composite photocatalyst and preparation method and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1818013A (en) * 2006-01-06 2006-08-16 扬州大学 Production of high-quality ZnO nanometer capsule with semiconductive luminescent materials
CN101591037A (en) * 2009-07-03 2009-12-02 北京化工大学 A kind of one-dimensional zinc oxide nanometer material and preparation method thereof
CN102951672A (en) * 2012-09-27 2013-03-06 清华大学 Preparation method of ZnO nanocrystals

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1818013A (en) * 2006-01-06 2006-08-16 扬州大学 Production of high-quality ZnO nanometer capsule with semiconductive luminescent materials
CN101591037A (en) * 2009-07-03 2009-12-02 北京化工大学 A kind of one-dimensional zinc oxide nanometer material and preparation method thereof
CN102951672A (en) * 2012-09-27 2013-03-06 清华大学 Preparation method of ZnO nanocrystals

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
CHANGLE WU等: "Synthesis of ZnO flowers and their photoluminescence properties", 《MATERIALS RESEARCH BULLETIN》 *
D. GEETHA等: "HYDROTHERMAL SYNTHESIS OF NANO ZnO STRUCTURES FROM CTAB", 《DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES》 *
RIZWAN WAHAB等: "Low temperature solution synthesis and characterization of ZnO nano-flowers", 《MATERIALS RESEARCH BULLETIN》 *
YAN-XIANG WANG等: "A CTAB-assisted hydrothermal and solvothermal synthesis of ZnO nanopowders", 《CERAMICS INTERNATIONAL》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112076768A (en) * 2020-08-26 2020-12-15 广东工业大学 Lead-cesium bromide quantum dot modified zinc oxide composite photocatalyst and preparation method and application thereof

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Application publication date: 20170111