Nitrogen-sulfur double-doped porous carbon material catalyst and preparation method thereof

Abstract

The invention discloses a nitrogen-sulfur double-doped porous carbon material catalyst and a preparation method thereof, and relates to the technical field of carbon catalytic preparation. According to the nitrogen and sulfur double-doped porous carbon material catalyst and the preparation method thereof, the porous carbon material comprises a nitrogen and sulfur source and a carbon source with the mass ratio of 1%-50%, the carbon source is glucose, the nitrogen and sulfur source is cysteine, and a non-metal nitrogen and sulfur double-doped porous carbon material is prepared through a hydrothermal method and a high-temperature alkali activation method. The co-doping of nitrogen and sulfur not only ensures the catalytic stability of the catalyst, but also promotes the adsorption and catalytic degradation of antibiotic organic pollutants through the synergistic effect of nitrogen and sulfur, and the catalytic performance is better than that of a single element doped carbon material. The raw materials for preparing the catalyst are green, pollution-free and easy to purchase, the cost is low, the preparation process is simple, large-scale production is easy, and the catalyst can be applied to the fields of environmental organic polluted water treatment, drinking water deep purification treatment and the like.

Description

technical field [0001] The invention relates to the technical field of carbon catalytic preparation, in particular to a nitrogen-sulfur double-doped porous carbon material catalyst and a preparation method thereof. Background technique [0002] Pharmaceuticals and personal care products (referred to as PPCPs) mainly include drugs (antibiotics, hormones, etc.) and personal care products (antibacterials, disinfectants, and preservatives, etc.). Most PPCPs are water-soluble, complex in structure, can inhibit or affect the function of organisms at low concentrations, and belong to persistent refractory organic compounds. Since PPCPs are refractory organic substances, it is difficult to completely remove them by traditional physical methods (such as adsorption, sedimentation, etc.) and biological methods (such as activated sludge method). Human health and other animals and plants pose certain ecological risks. Therefore, PPCPs pollution has gradually become the focus of global ...

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Problems solved by technology

[0007] Aiming at the problems of low doping amount and small specific surface area of ​​the catalyst in the preparation method of the carbon catalyst in the prior art, the present invention proposes a nitrogen-sulfur double-doped porous carbon material catalyst and its preparation method. By adding glucose as a carbon source, the cysteine Amino acid is used as nitrogen source and sulfur source, and the non-metallic nitrogen-sulfur double-doped porous carbon material prepared by hydrothermal method and high-temperature alkali activation method has the characteristics of large specific surface area and high adsorption performance, thereby effectively improving the degradation of organic substances such as antibiotics. efficiency

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