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Preparation method and application of BiVO4@carbon nanodot composite photocatalytic material

A composite material, carbon nano-dot technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., to achieve the effects of excellent degradation of oxytetracycline hydrochloride, simple and convenient preparation process, and great application prospects.

Active Publication Date: 2019-11-19
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still few reports and studies on biomaterials or biomaterial derivatives or extracts as carbon sources

Method used

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  • Preparation method and application of BiVO4@carbon nanodot composite photocatalytic material
  • Preparation method and application of BiVO4@carbon nanodot composite photocatalytic material
  • Preparation method and application of BiVO4@carbon nanodot composite photocatalytic material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Dissolve 0.1170 g ammonium metavanadate in 10 mL 2 mol / L sodium hydroxide solution to make mixed solution A, and dissolve 0.4851 g bismuth nitrate pentahydrate and 0.25 g sodium dodecylbenzenesulfonate in 10 mL Prepare mixed solution B in 4 mol / L nitric acid solution, mix mixed solution A and mixed solution B evenly, adjust pH=6 with 2 mol / L sodium hydroxide solution, and obtain BiVO 4 Precursor; 0.01 g of sodium lignosulfonate was added to the prepared BiVO 4 In the precursor, stir to completely dissolve the sodium lignosulfonate, transfer the obtained mixed solution to a reaction kettle for calcination at 200 °C for 8 hours, then centrifugally wash the obtained solid, and dry it to obtain BiVO 4 @Carbon Nanodot Composites.

[0025] Photocatalytic degradation test: the obtained BiVO 4 @Carbon nano-dot composite material was tested for photocatalytic degradation in a photochemical reaction instrument, and the BiVO 4 The degradation rate of oxytetracycline hydrochlori...

Embodiment 2

[0027] Dissolve 0.1170 g ammonium metavanadate in 10 mL 2 mol / L sodium hydroxide solution to make mixed solution A, and dissolve 0.4851 g bismuth nitrate pentahydrate and 0.25 g sodium dodecylbenzenesulfonate in 10 mL Prepare mixed solution B in 4mol / L nitric acid solution, mix mixed solution A and mixed solution B evenly, adjust pH=8 with 2mol / L sodium hydroxide solution, and obtain BiVO 4 Precursor; 0.05 g of sodium lignosulfonate was added to the prepared BiVO 4 In the precursor, stir to completely dissolve the sodium lignosulfonate, transfer the obtained mixed solution to a reaction kettle for calcination at 160 °C for 16 hours, then centrifugally wash the obtained solid, and dry it to obtain BiVO 4 @Carbon Nanodot Composites.

[0028] Photocatalytic degradation test: the obtained BiVO 4 @Carbon nano-dot composite material is placed in a photochemical reaction instrument for photocatalytic degradation test, and the BiVO 4 The degradation rate of oxytetracycline hydrochl...

Embodiment 3

[0030] Dissolve 0.1170 g ammonium metavanadate in 10 mL 2 mol / L sodium hydroxide solution to make mixed solution A, and dissolve 0.4851 g bismuth nitrate pentahydrate and 0.25 g sodium dodecylbenzenesulfonate in 10 mL Prepare mixed solution B in 4 mol / L nitric acid solution, mix mixed solution A and mixed solution B evenly, adjust pH=7 with 2 mol / L sodium hydroxide solution, and obtain BiVO 4 Precursor; Add 0.10 g of sodium lignosulfonate to the prepared BiVO 4 In the precursor, stir to completely dissolve the sodium lignosulfonate, transfer the obtained mixed solution to a reaction kettle for calcination at 160 °C for 16 hours, then centrifugally wash the obtained solid, and dry it to obtain BiVO 4 @Carbon Nanodot Composites.

[0031] Photocatalytic degradation test: the prepared BiVO 4 @Carbon nano-dot composite material is placed in a photochemical reaction instrument for photocatalytic degradation test, and the BiVO 4 The degradation rate of oxytetracycline hydrochlorid...

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Abstract

The invention belongs to the field of environmental materials, and concretely relates to a preparation method and an application of a BiVO4@carbon nanodot composite photocatalytic material. Sodium lignosulfonate, bismuth nitrate pentahydrate and ammonium metavanadate are used as raw materials, the sodium lignosulfonate is added during the hydrothermal synthesis of BiVO4, and the sodium lignosulfonate controls the morphology growth of the BiVO4 in the reaction process, and is carbonized at a high temperature under a high pressure to obtain to nanodots so as to obtain the BiVO4@carbon nanodot composite material with a carbon nanodot wrapped BiVO4particle structure. The preparation process is simple and convenient, and the BiVO4@carbon nanodot composite photocatalytic material has a better oxytetracycline hydrochloride-degrading effect than the pure phase BiVO4 material, and has a great application prospect in degradation of antibiotic wastewater. The biomaterial is used as a carbon source, so the development and utilization of the biomaterial are broadened.

Description

technical field [0001] The invention belongs to the field of environmental materials, in particular to a BiVO 4 Preparation method and application of @carbon nanodot composite photocatalytic material. Background technique [0002] Although the long-term industrial development has improved the level of human society, various resources have also been consumed in large quantities. Energy is the cornerstone of social development. In the process of energy utilization, global environmental pollution has gradually intensified, and ecological damage has been serious. How to alleviate the harm caused by pollution and ecological damage has always been a major problem that needs to be solved urgently in scientific research. Therefore, a photocatalytic technology has been widely studied. Photocatalysis refers to photochemical reactions carried out under the action of some catalysts, using the combination of catalysts and photochemistry to accelerate chemical reactions under the synerg...

Claims

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Application Information

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IPC IPC(8): B01J23/22B01J37/10B82Y30/00B82Y40/00C02F1/30C02F101/34C02F101/36C02F101/38
CPCB01J23/22B01J37/10B82Y30/00B82Y40/00C02F1/30C02F2101/34C02F2101/36C02F2101/38C02F2305/10B01J35/39
Inventor 汪涛刘锡清门秋月韩东来马长畅闫永胜霍鹏伟
Owner JIANGSU UNIV
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