摘要：进入21世纪以来，人类面临着人口，能源，资源和环境问题的严峻挑战，而其中能源短缺，环境污染最为严重。随着科学技术不断的发展，人类环境保护的意识愈发的强烈，寻找新型技术解决环境污染问题就迫在眉睫了。在近年来，人们发现光催化氧化技术对于水污染问题方面有着巨大的作用，并且与其他方法相比较光催化氧化技术有着更大的优势。它是一种新兴的治理环境污染技术，能够直接利用太阳光将有机污染物降解，不产生二次污染，并且成本低、能耗少等，对于研究人员来说这是个极具发展可行的环保技术。虽然光催化氧化技术发展前景很好，但是目前光催化氧化技术还存在着很多缺陷（如，量子效率比较低，可见光的利用效率低等等），阻碍了光催化氧化技术的快速发展。为了深入了解光催化技术在实际应用中的作用，及其催化效率，本次实验将以此进行探讨与研究。首先制备出BiOCl催化剂，然后与C点进行复合，得出结构，形貌方面都可控的高活性碳量子点/BiOCl复合光催化材料。81972

关键词：光催化，复合材料，碳量子，BiOCl

Study on Degradation of Pollutants by CQDs / BiOCl Composite Photocatalyst

Abstract：Since the beginning of the 21st century, mankind is facing severe challenges in population, energy, resources and environmental problems, with energy shortages and environmental pollution being the most serious。 With the continuous development of science and technology, the awareness of human environmental protection increasingly strong, looking for new technology to solve the problem of environmental pollution is imminent。 In recent years, it has been found that photocatalytic oxidation technology has a great effect on water pollution problems, and compared with other methods of photocatalytic oxidation technology has a greater advantage。 It is a new environmental pollution control technology, can directly use the sun to reduce the degradation of organic pollutants, does not produce secondary pollution, and low cost, low energy consumption, for the researchers this is a highly viable environmental technology。 Although the development trend of photocatalytic oxidation technology is very good, but there are many defects in photocatalytic oxidation technology (such as low quantum efficiency, low utilization efficiency of visible light, etc。), hindering the rapid development of photocatalytic oxidation technology。 In order to understand the role of photocatalytic technology in practical application, and its catalytic efficiency, this experiment will be discussed and studied。 First, the BiOCl catalyst was prepared and then recombined with point C。 The high active carbon quantum dots / BiOCl composite photocatalytic materials were obtained。

Key Words：Photocatalysis; composite; carbon quantum dots; BiOCl

目录

1。文献综述 5

1。1研究背景 5

1。2半导体光催化的基本原理 6

1。3主要的光催化剂类型 7

1。4光催化剂的制备方法 8

1。4。1水热合成法 8

1。4。2 液相沉淀法 8

1。4。3水解法 8

1。4。4溶剂热法 8

1。5影响光催化性能强度的主要因素 8

1。6光催化技术的研究目的和意义 9

1。7实验原料的介绍 10

1。7。1硝酸铋的介绍：