掺磷非晶氧化钛负载铂用于高效催化氧化挥发性有机化合物  

Removal of Volatile Organic Compounds Driven by Platinum Supported on Amorphous Phosphated Titanium Oxide

作　　者：黄谢意 王鹏 尹国恒[1] 张绍宁 赵伟 王东[1] 毕庆员[1] 黄富强 HUANG Xieyi;WANG Peng;YIN Guoheng;ZHANG Shaoning;ZHAO Wei;WANG Dong;BI Qingyuan;HUANG Fuqiang(State Key Laboratory of High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Physical Science and Technology,ShanghaiTech University,Shanghai 200031,China;State Key Laboratory of Rare Earth Materials Chemistry and Applications,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China)

机构地区：[1]中国科学院上海硅酸盐研究所,高性能陶瓷和超微结构国家重点实验室,上海200050 [2]中国科学院大学,北京100049 [3]上海科技大学物理科学与技术学院,上海200050 [4]北京大学化学与分子工程学院,稀土材料化学及应用国家重点实验室,北京100871

出　　处：《无机材料学报》2020年第4期482-490,I0001,共10页Journal of Inorganic Materials

基　　金：National Key Research and Development Program of China(2016YFB0901600);National Natural Science Foundation of China(21872166);Science&Technology Commission of Shanghai(16ZR1440400,16JC1401700);The Key Research Program of Chinese Academy of Sciences(QYZDJ-SSW-JSC013 and KGZD-EW-T06)。

摘　　要：高活性催化剂是挥发性有机化合物(VOCs)催化氧化消除的关键因素。本研究通过简单的共沉淀法成功制备了具有高比表面积的非晶介孔磷掺杂氧化钛负载铂催化剂(Pt/ATO-P)。通过P掺杂,既可获得非晶介孔结构,又可获得高ATO-P比表面积(可达278.9m2·g-1)。非晶介孔Pt/ATO-P催化剂显示出优异的VOCs催化氧化性能和良好的热稳定性。Pt/ATO-P样品在空速为36000m L·h-1·g-1、甲苯浓度为10000m L·m-3的反应条件下,对甲苯催化氧化的T50和T90(实现50%和90%转化率所需的温度)分别为130℃和140℃,明显优于无磷催化剂Pt/TiO2。这些发现可以为拓展非晶介孔磷化材料在环境净化和能源转化等领域的应用提供重要参考。Development of high efficiency catalyst is the key factor to catalytic combustion of volatile organic compounds(VOCs). Herein, amorphous mesoporous phosphated TiO2(ATO-P) with high specific surface area supported platinum catalyst was successfully fabricated. P-dopant can increase the surface area(up to 278.9 m2·g-1) of ATO-P, which is 21 times higher than that of pristine TiO2, and make the amorphous titanium oxide structure. The supported Pt catalyst with amorphous mesoporous feature shows impressive performance and excellent thermostability for VOCs oxidation. The Pt/ATO-P catalyst exhibits outstanding catalytic efficiency, the T50 and T90(temperatures required for achieving conversions of 50% and 90%) are respectively 130 ℃ and 140 ℃, for toluene oxidation under high gas hourly space velocity(GHSV) of 36000 m L·h-1·g-1 and toluene concentration of 10000 m L·m-3. The performance is superior to the reference Pt/TiO2 and comparable with the state-of-the-art catalysts. These findings can make a significant contribution on the new applications of amorphous mesoporous phosphated materials in VOCs removal.

关 键 词：非晶介孔材料 磷掺杂非晶氧化钛 铂纳米颗粒 甲苯催化氧化 VOCs消除 

分 类 号：O782[理学—晶体学]