光催化反应器-旋转盘反应器应用于降解2,4-二氯苯氧乙酸

除草剂废水是农业和林业生产中常见的污染物，其中2,4-二氯苯氧乙酸（2，4-D）作为一种典型的苯氧羧酸类除草剂，其排放对水体环境造成了严重污染。为了解决这一问题，光催化技术作为一种高级氧化技术，受到了广泛关注。光催化材料在太阳能的驱动下，能够产生光生载流子，进而引发一系列氧化还原反应，实现对有机污染物的降解。

Herbicide wastewater is a common pollutant in agricultural and forestry production. Among them, 2,4-dichlorophenoxyacetic acid (2,4-D), as a typical phenoxycarboxylic acid herbicide, has a negative impact on the water environment. serious pollution. In order to solve this problem, photocatalysis technology, as an advanced oxidation technology, has received widespread attention. Driven by solar energy, photocatalytic materials can generate photogenerated carriers, which in turn trigger a series of redox reactions and achieve the degradation of organic pollutants.

溴氧化铋作为一种高效的光催化材料，在除草剂废水处理中展现出了优异的性能。其独特的电子结构和光吸收特性使得它能够在可见光甚至近红外光的照射下产生光生电子和空穴。这些光生载流子能够与水体中的2，4-D等有机污染物发生反应，将其分解为无害的小分子物质。

Bismuth oxybromide, as an efficient photocatalytic material, has shown excellent performance in herbicide wastewater treatment. Its unique electronic structure and light absorption properties enable it to generate photogenerated electrons and holes under the irradiation of visible light or even near-infrared light. These photogenerated carriers can react with organic pollutants such as 2,4-D in water and decompose them into harmless small molecular substances.

为了进一步提高溴氧化铋的光催化性能，研究者们还通过构建异质结、引入固溶体等方式对其进行改性。异质结的构建能够拓宽光吸收范围，提高光生载流子的分离效率，从而增强光催化活性。而固溶体的引入则能够调节材料的能带结构，优化其氧化还原能力，使得光催化反应更为高效。

In order to further improve the photocatalytic performance of bismuth oxybromide, researchers also modified it by constructing heterojunctions and introducing solid solutions. The construction of heterojunction can broaden the light absorption range and improve the separation efficiency of photogenerated carriers, 

此外，类石墨相氮化碳（g-C3N4）等辅助催化剂的加入也能够显著提升溴氧化铋的光催化性能。这些辅助催化剂能够与溴氧化铋形成复合体系，通过协同作用提高光生载流子的利用率，进一步加速有机污染物的降解过程。

In addition, the addition of auxiliary catalysts such as graphite-like carbon nitride (g-C3N4) can also significantly improve the photocatalytic performance of bismuth oxybromide. These auxiliary catalysts can form a composite system with bismuth oxybromide, which can improve the utilization of photogenerated carriers through synergistic effects and further accelerate the degradation process of organic pollutants.

在光催化降解2，4-D的过程中，除了直接的光氧化反应外，还可能涉及到还原金属离子等间接反应。这些反应能够进一步拓宽光催化技术的应用范围，实现对多种污染物的协同处理。

In the process of photocatalytic degradation of 2,4-D, in addition to direct photooxidation reactions, indirect reactions such as reduction of metal ions may also be involved. These reactions can further broaden the application scope of photocatalytic technology and achieve coordinated treatment of multiple pollutants.

农业和林业生产中产生的除草剂废水对水体环境造成了严重污染，而光催化技术作为一种高效、环保的高级氧化技术，为解决这一问题提供了有效的途径。溴氧化铋等光催化材料在除草剂废水处理中展现出了优异的性能，通过构建异质结、引入固溶体以及加入辅助催化剂等方式，可以进一步提高其光催化活性。随着研究的深入和技术的不断完善，光催化技术有望在农业和林业废水处理领域发挥更大的作用，为环境保护和可持续发展做出更大的贡献。

Herbicide wastewater generated in agricultural and forestry production has caused serious pollution to the water environment. Photocatalytic technology, as an efficient and environmentally friendly advanced oxidation technology, provides an effective way to solve this problem. Photocatalytic materials such as bismuth oxybromide have shown excellent performance in herbicide wastewater treatment. Their photocatalytic activity can be further improved by constructing heterojunctions, introducing solid solutions, and adding auxiliary catalysts. With the deepening of research and the continuous improvement of technology, photocatalytic technology is expected to play a greater role in the field of agricultural and forestry wastewater treatment and make greater contributions to environmental protection and sustainable development.

然而，尽管光催化技术在处理除草剂废水方面取得了显著进展，但仍存在一些挑战和问题需要解决。首先，光催化材料的稳定性和寿命是限制其实际应用的重要因素。在实际生产过程中，光催化材料可能会受到水中杂质、pH值变化等因素的影响，导致其催化性能下降。因此，开发具有高稳定性和长寿命的光催化材料是未来的研究重点之一。

However, although photocatalytic technology has made significant progress in treating herbicide wastewater, there are still some challenges and issues that need to be resolved. First, the stability and lifetime of photocatalytic materials are important factors limiting their practical applications. In the actual production process, photocatalytic materials may be affected by impurities in water, pH changes and other factors, resulting in a decrease in their catalytic performance. Therefore, the development of photocatalytic materials with high stability and long life is one of the focuses of future research.

其次，光催化技术的处理效率和处理成本也是需要考虑的问题。虽然光催化技术具有高效、环保等优点，但其处理效率可能受到光源强度、反应时间等因素的影响。同时，光催化材料的制备和反应器的建设也需要一定的成本投入。因此，在推广光催化技术时，需要综合考虑其处理效率和经济性，寻求最优化的解决方案。

Secondly, the treatment efficiency and treatment cost of photocatalytic technology are also issues that need to be considered. Although photocatalytic technology has the advantages of high efficiency and environmental protection, its processing efficiency may be affected by factors such as light source intensity and reaction time. At the same time, the preparation of photocatalytic materials and the construction of reactors also require a certain cost investment. Therefore, when promoting photocatalytic technology, it is necessary to comprehensively consider its treatment efficiency and economy and seek the optimal solution.

此外，针对不同类型和浓度的除草剂废水，可能需要采用不同的光催化材料和反应条件。因此，在实际应用中，需要根据具体情况进行选择和调整，以达到最佳的处理效果。

In addition, different photocatalytic materials and reaction conditions may be required for different types and concentrations of herbicide wastewater. Therefore, in practical applications, selection and adjustment need to be made according to specific conditions to achieve the best processing effect.

光催化技术在处理除草剂废水方面具有广阔的应用前景和重要的实际意义。通过不断优化光催化材料和反应条件，解决其在实际应用中面临的挑战和问题，相信光催化技术将为农业和林业废水处理领域带来革命性的变革，为环境保护和可持续发展做出更大的贡献。

Photocatalytic technology has broad application prospects and important practical significance in treating herbicide wastewater. By continuously optimizing photocatalytic materials and reaction conditions and solving the challenges and problems faced in practical applications, it is believed that photocatalytic technology will bring revolutionary changes to the field of agricultural and forestry wastewater treatment and make contributions to environmental protection and sustainable development. greater contribution.

案例介绍

光催化反应器-旋转盘反应器应用于降解2,4-二氯苯氧乙酸

Application case of built-in photocatalytic reactor: methylene blue photocatalytic degradation

通过固溶体和异质结这两种改性手段相结合， 制备出两种经济高效、绿色稳定的复合光催化剂， 实现水中2,4D农药污染物的高效去除。图1为光催化反应装置示意图。

By combining solid solution and heterojunction modification methods, two economically efficient, green and stable composite photocatalysts were prepared to achieve efficient removal of 2,4D pesticide pollutants in water. Figure 1 is a schematic diagram of the photocatalytic reaction device.

图 1光催化反应装置示意图

Figure 1 Schematic diagram of photocatalytic reaction device

滤光片和300Ｗ氙灯作为灯源，光源距溶液液面300px。

在可见光120min作用下， 双策略改性BiOBr对2,4-D的降解效率可达89.1%。

The filter and 300W xenon lamp are used as the lamp source, and the light source is 300px away from the solution liquid surface.

Under visible light for 120 minutes, the degradation efficiency of 2,4-D by dual strategy modified BiOBr can reach 89.1%.

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Jiangsu Hangye Energy Technology Co., Ltd. customizes photocatalytic reaction vessels and photocatalytic fluidized bed reactors for you. Welcome to inquire.