Coral-shaped copper-molybdenum-sulfur microsphere embedded graphene nano sheet and synthesis method and application thereof

A technology of graphene nanosheets and synthesis methods, which is applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of difficult removal of dyes, waste of resources, low utilization rate, etc., and achieve easy recycling, recycling, Good removal effect, high utilization rate effect

CN109647443AActive Publication Date: 2019-04-19GUANGZHOU UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-04-19

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Abstract

The invention discloses a coral-shaped copper-molybdenum-sulfur microsphere embedded graphene nano sheet and a synthesis method and application thereof. The synthesis method comprises the following steps of: synthesizing reducing graphene oxide by combining an improved Hummers method with an annealing reduction method; adding Na2MoO4 2H2O, CuCl2 2H2O and reducing graphene oxide into water, mixingand stirring, adding CH4N2S, stirring and performing ultrasonic treatment, then performing hydrothermal reaction; washing, drying and grinding the product obtained by hydrothermal reaction to obtain the coral-shaped copper-molybdenum-sulfur microsphere embedded graphene nano sheet. The coral-shaped copper-molybdenum-sulfur microsphere embedded graphene nano sheet has a good removal effect on degradation of organic pollutants which are difficult to biodegrade under a neutral room temperature condition and can be recycled, which does not need to adjust the pH value of a system to be 2-3 in the reaction process.
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Description

technical field

[0001] The invention belongs to the field of water treatment, and in particular relates to a coral-shaped copper-molybdenum-sulfur microsphere embedded with graphene nanosheets and a synthesis method and application thereof. Background technique

[0002] Dyestuff is an important chemical raw material in industrial production, and it is also an essential chemical substance in contemporary life. The release of dyes into the water environment causes serious environmental pollution, which not only changes the color of the water body, but also affects human life and health through the food chain. For example, the artificial dye rhodamine B (RhB) has been found to be carcinogenic. However, the biodegradability of artificial dyes is very low, and it is difficult to remove dyes by conventional water treatment technologies based on biological treatment. Fenton technology, as a typical advanced oxidation technology, produces a large number of hydroxyl radicals during ...

Examples

Embodiment

[0043] Example: Preparation, characterization and application experiments of coral-like copper-molybdenum-sulfur microspheres embedded with graphene nanosheets c-CuMoS-rGO NSs

[0044] 1. Preparation

[0045] In this example, the material c-CuMoS-rGO NSs of the present invention will be prepared.

[0046] Coral-like copper-molybdenum-sulfur microspheres embedded with graphene nanosheets c-CuMoS-rGO NSs were prepared according to the following steps:

[0047] (1) Slowly add 10.0 g of graphene powder into 230 mL of concentrated sulfuric acid (98 wt %) under ice bath conditions below 0° C., and stir for 10 minutes to obtain solution A. 50.0g NaNO 3 Added to solution A, stirred for 10 minutes to obtain solution B. 30.0gKMnO 4 Slowly added to solution B, the temperature of the mixed solution was raised to 38°C, and stirred for 1 hour to obtain solution C.

[0048] (2) Add 500 mL of deionized water to Solution C, raise the temperature to 98°C, and stir for 1 hour to obtain Solu...