Photocatalysis water-treating material as well as preparation method and application thereof

Abstract

The invention discloses a photocatalysis water-treating material as well as a preparation method and an application thereof. The preparation method of the material comprises the following steps of: (1) preparing an OH-Fe pillar supporting liquid; (2) preparing the mixed liquid of bentonite and a cationic surfactant; (3) dropwise dropping the OH-Fe pillar supporting liquid prepared in the step (1) into the mixed liquid prepared in the step (2) and stirring; (4) after the stirring is completed, applying ultrasonic wave and microwave irradiation to the mixed liquid, and then aging at room temperature; and (5) then pouring a supernate, washing, drying the precipitates, and then grinding and calcining the dried precipitates. The prepared photocatalysis water-treating material can use the visible light (such as sunlight) to excite and assist the catalytic oxidation in the catalytic process and lower the cost.

Description

technical field

[0001] The invention belongs to the field of water treatment, and relates to a photocatalytic water treatment material and its preparation method and application, in particular to a photocatalytic material for treating organic waste water, its preparation method and its application. Background technique

[0002] At present, with the rapid development of industrial technology, the water resources that human beings rely on for survival are polluted to varying degrees, and water resource pollution has become an urgent problem that countries all over the world are facing. Pollutants in water, especially toxic organic pollutants, not only cause environmental pollution and ecological damage, but also seriously endanger human health. These organic pollutants include polycyclic aromatic hydrocarbons, polychlorinated biphenyls, pesticides, environmental interferons, dyes, etc.

[0003] Fenton's reagent generally refers to Fe 2+ and H 2 o 2 The oxidation system con...