摘要
随着社会的发展以及工业行业的崛起,有机染料、抗生素、苯酚和酚类化合物、炼油厂废水污染物以及其他一些常见的工业化学品不可避免地流入了环境中。因此,必须寻找切实有效的水处理工艺,以实现废水的妥善处理。传统的水处理方法有物理法、化学法以及生物法。物理法主要是将污染物从水体中转移出来,并没有实现污染物的降解,还有可能导致二次污染。化学法虽然比较高效,但是反应单一,且可能生成具有毒性的二次产物。生物法周期较长,且性能有待考证,生物的选择性仍然是一个难以攻克的难题。光催化技术作为高级氧化法的一种,具有成本低廉、性能高效、绿色环保,同时能够实现污染物的完全氧化等优点,因此得到了广泛的研究。本文综述了光催化技术的机理以及环境因素对催化过程的影响,为光催化技术的进一步发展提供了参考依据。
With the development of the society and the rise of the industrial sector,organic dyes,antibiotics,phenols and phenolic compounds,refinery wastewater pollutants and some other common industrial chemicals inevitably flow into the environment.Therefore,it is necessary to find effective and efficient water treatment processes to achieve proper treatment of wastewater.The traditional methods of water treatment are physical,chemical and biological.Physical methods mainly transfer pollutants from the water,however,they do not achieve degradation of pollutants.In addition,there is the possibility of secondary pollution.Chemical methods are more efficient,but the reaction is single,and may generate toxic secondary products.Biological methods have a long cycle time and their performance is yet to be proved,and biological selectivity is still a difficult problem to overcome.As a kind of advanced oxidation method,photocatalytic technology has been widely researched because of its advantages of low cost,high performance,green and environmental protection,as well as the ability to achieve the complete mineralisation of pollutants.This paper reviews the mechanism of photocatalytic technology and the influence of environmental factors on the catalytic process,which provides a reference basis for the further development of photocatalytic technology.
作者
蔡俊成
蔡长君
CAI Juncheng;CAI Changjun(Wuwei Ecological Environment Monitoring Center,Wuwei 733000,China)
出处
《山东化工》
2025年第1期131-134,共4页
Shandong Chemical Industry
基金
武威市自然科学基金项目(WW2201RPZ026)。
关键词
水处理
光催化
影响因素
应用前景
water treatment
photocatalysis
influencing factors
application prospects
