Preparation method of C-doped BiOBr microsphere photocatalyst

Abstract

The invention relates to a preparation method of a C-doped BiOBr microsphere photocatalyst. The method comprises the following steps: under constant-temperature high-speed dispersion conditions, slowly adding a bismuth salt solution into a sodium alginate dispersion solution, and carrying out dispersing at a high speed for 5-50 minutes; slowly adding a bromine salt solution into the system under ahigh-speed dispersion condition, and carrying out high-speed dispersion for 5-50 minutes; then transferring the reaction system into a high-pressure reaction kettle for a hydrothermal reaction so asto obtain a product; and subjecting the product to suction filtration separation, repeated washing with distilled water, and drying overnight to obtain the C-doped BiOBr microsphere photocatalyst. TheC-doped BiOBr microsphere photocatalyst is synthesized through a one-step hydrothermal reaction; the method is simple in process and low in cost; and the prepared C-doped BiOBr microsphere photocatalyst has good catalytic degradation performance on TC under simulated sunlight and has good application prospects in the field of photocatalytic degradation of antibiotic wastewater.

Description

technical field [0001] The invention relates to the technical field of micro-nano materials and photocatalysis, in particular to a preparation method of C-doped BiOBr microsphere photocatalyst. Background technique [0002] Water pollution directly affects human production and life. At present, methods such as adsorption, electrocatalysis, membrane separation, and biodegradation are widely used in the treatment of water pollution. At the same time, as a new type of water pollution treatment method, photocatalytic degradation has shown excellent characteristics such as high efficiency, low energy consumption, and sustainability in the field of water treatment. The above characteristics have attracted extensive attention of relevant scholars. Among them, Bi-based semiconductor photocatalyst is a new type of photocatalytic material with excellent photocatalytic effect. Most of these catalysts have a unique layered structure and good light absorption ability. At the same tim...

AI Technical Summary

Problems solved by technology

However, the C-doping of Bi-based photocatalysts usually requires energy-intensive processes such as calcination, and relatively expensive organic solvents as the reaction environment.

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