摘要
将催化氧化法分为热催化、光催化、电催化和PMS活化催化4类,总结其在脱除甲苯方面的应用,发现近年来如Pt、Au、Ag、CeO 2等贵金属及金属氧化物在催化剂中的应用越来越广泛,其在不同材料表面的负载能够显著影响其催化剂成品的强度、孔隙率等物理性质,进而影响其对工况的适应范围和经济效益。详细分析了催化材料和反应条件对脱除甲苯效率的影响,阐明了不同类型脱除甲苯反应的本质。根据各个类型的反应温度和研究时间指出催化氧化法必然向着反应条件更加温和的方向发展,且有自由基参与的催化氧化方法因其节能且高效的特质,必然会受到更多关注与应用。最后,指出了当前研究难以应用于工程且反应机理探究不足的问题,并提出了发展建议。
The catalytic oxidation methods are divided into four categories:thermal catalysis,photocatalysis,electrocatalysis and PMS activated catalysis,and their applications in the removal of toluene are summarized.It is found that the application of precious metals and metal oxides such as Pt,Au,Ag and CeO 2 in catalysts has become more and more extensive in recent years.The load on the surface of different materials can significantly affect the physical properties of the finished catalyst such as strength and porosity,and then affect its adaptability to the working conditions and economic benefits.Then,the effects of catalytic materials and reaction conditions on the efficiency of toluene removal were analyzed in detail,and the nature of different types of toluene removal reactions was explained.In addition,according to the different types of reaction temperatures and research time,it is pointed out that catalytic oxidation methods are bound to develop in the direction of more moderate reaction conditions,and catalytic oxidation methods involving free radicals are bound to receive more attention and application because of their energy-saving and efficient characteristics.Finally,it is pointed out that the current research is difficult to apply to engineering and the research of reaction mechanism is insufficient,and the development suggestions are put forward.
作者
毛俞敏
宋云畅
郝润龙
MAO Yu-min;SONG Yun-chang;HAO Run-long(Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control,Department of Environmental Science and Engineering,North China Electric Power University,Baoding 071003,China)
出处
《应用化工》
CAS
CSCD
北大核心
2024年第1期161-166,共6页
Applied Chemical Industry
基金
国家自然科学基金青年项目(52000067)。
关键词
高级氧化法
自由基
催化
脱除甲苯
advanced oxidation method
free radicals
catalysis
toluene removal
