燃油光催化氧化脱硫催化剂的研究进展(上)  

Research progress of photocatalytic oxidation desulfurization catalyst in fuel oil

作　　者：柳月 田景芝[1] 郝欣 付佳琦 帅昱彤 单丹阳 Liu Yue;Tian Jingzhi;Hao Xin;Fu Jiaqi;Shuai Yutong;Shan Danyang(College of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar Heilongjiang 161000,China)

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161000

出　　处：《石油化工》2021年第4期381-388,共8页Petrochemical Technology

基　　金：黑龙江省教育厅基本业务项目(135309109);黑龙江省大学生创新创业训练项目(202010232071)。

摘　　要：光催化氧化脱硫(PODS)技术因反应条件温和及成本低廉等特点被视为目前最具发展前景的脱硫技术之一。PODS技术的核心是高效催化剂的开发,纳米级TiO2因低廉的成本和优异的稳定性成为研究最为广泛的PODS催化剂之一,但纳米级TiO2存在的自身易团聚、可见光利用效率低和光生载流子复合几率高等问题限制了它的PODS效率,对其进行改性成为必然。从添加载体、掺杂元素和构建异质结三个方面综述了不同改性方法对纳米级TiO2的PODS效率的影响,展望了新型PODS催化剂的研究趋势,指出在PODS过程中避免添加氧化剂是未来的发展方向。Photocatalytic oxidation desulfurization(PODS)technology is regarded as one of the most promising desulfurization technologies due to its mild reaction conditions and low cost.As the core of PODS technology,many efforts have been made to develop high-efficiency PODS catalysts.Nano-sized TiO2 has become one of the most widely studied PODS catalysts because of its low cost and excellent stability.However,nano-sized TiO2 has problems such as easy self-agglomeration,low visible light utilization efficiency and high recombination probability of photogenerated carriers,which limit the PODS efficiency.Therefore,modification of nano-sized TiO2 has become an inevitable choice.This article reviewed the research progress of modified nano-sized TiO2 from three aspects including adding support,doping elements and constructing heterojunction,and the research trend of new PODS catalysts was prospected.Besides,it also pointed out that avoiding the addition of oxidants in the PODS process would need to be concerned in the future.

关 键 词：燃油 脱硫 光催化氧化 纳米级二氧化钛 

分 类 号：TQ426[化学工程]