杂原子掺杂碳材料活化过硫酸盐技术的研究进展  

Research progress in the application of heteroatom-doped carbonaceous materials for persulfate activation

作　　者：李小娟[1] 叶兰妹 廖凤珍 叶梓瑜 叶礼志 LI Xiaojuan;YE Lanmei;LIAO Fengzhen;YE Ziyu;YEH Lizhi(College of Environment and Resources,Fuzhou University,Fuzhou 350108,Fujian,China;Department of Civil and Environmental Engineering,University of Kaohsiung,Kaohsiung 81148,Taiwan,China)

机构地区：[1]福州大学环境与资源学院,福建福州350108 [2]高雄大学土木与环境工程学系,台湾高雄81148

出　　处：《化工进展》2021年第1期273-281,共9页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(21407026)。

摘　　要：碳材料因其比表面积高、吸附性能佳,并且能克服加热、紫外光照射、超声等传统活化方式能耗高、金属催化材料产生二次污染的弊端而在活化过硫酸盐降解有机污染物应用中具有潜力。杂原子(N、S、B、P等)掺杂不仅能打破碳材料网络惰性、提高电导率,还能增加反应活性位点,是提升碳材料活化过硫酸盐性能的有效途径。本文介绍了碳材料活化过硫酸盐的机理,主要包括自由基途径、单线态氧途径及表面电子传递,并进一步总结了杂原子掺杂碳材料活化过硫酸盐的机理;然后综述了杂原子碳材料的种类、制备方法及其在有机污染物降解中的应用,最后指出了已有研究存在的不足,并提出杂原子掺杂碳材料稳定性及可重复利用性的提升和降解机制的深入探索是未来研究的方向。Various methods have been reported for persulfate activation including the use of heat,UV,ultrasound and transition metals.However,these methods suffer from high energy input or inevitable leaching of toxic metal from metal-based catalysts,which has limited their practical applications.Then,carbonaceous materials have attracted considerable interests as heterogeneous catalysts for persulfate activation owing to their large surface area,unique adsorption property and metal-free nature.Heteroatom(N,S,B,P,etc.)doping can not only break carbonaceous materials’network inertia to enhance the conductivity,but also can increase the reactive sites,resulting in the improvement of their performance in persulfate activation.In this paper,the persulfate activation mechanisms of carbonaceous materials were introduced,mainly involving free radical pathways,singlet oxygen pathways and surface electron transfer,and those of the heteroatom-doped carbonaceous materials were further discussed.Then,the types and fabrication methods of heteroatomic carbonaceous materials as well as their applications in degradation of organic pollutants were reviewed.Finally,it was proposed that the promotion of stability and reusability and the in-depth study of the mechanisms were the future research directions of heteroatom-doped carbonaceous materials.

关 键 词：过硫酸盐 自由基 杂原子掺杂 碳材料 活化 降解 

分 类 号：TB383[一般工业技术—材料科学与工程]