含氧化钴蜂窝状介孔纳米反应器的可控合成及其在染料降解中的应用  

Controlled Synthesis of Cellular Mesoporous Nanoreactors Containing Cobalt Oxide and Their Application in Dye Degradation

作　　者：冯浩洋 李凯杰 尹宏峰[2] Feng Haoyang;Li Kaijie;Yin Hongfeng(School of Materials Science and Chemical Engineering,Ningbo University,Ningbo,315211;Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo,315201)

机构地区：[1]宁波大学材料科学与化学工程学院,宁波315211 [2]中国科学院宁波材料技术与工程研究所,宁波315201

出　　处：《化学通报》2024年第9期1119-1124,共6页Chemistry

基　　金：国家自然科学基金项目(61971405)资助。

摘　　要：以CTAB和十二硫醇在水相中形成的胶束为模板,一步法合成含氧化钴的蜂窝状介孔纳米反应器(Co_(x)O_(y)@CMSNs)。研究了Co_(x)O_(y)@CMSNs和负载型催化剂(Co_(x)O_(y)/SiO_(2))对不同类型染料的降解效果,同时考察了合成条件和催化反应参数对降解效果的影响,并对最优效果的催化剂进行了稳定性测试。结果表明,相比于负载型催化剂,Co_(x)O_(y)@CMSNs展现出了优异的催化活性、稳定性和染料适用性,这主要归因于Co_(x)O_(y)@CMSNs中高度分散的Co_(x)O_(y)、丰富的孔结构、高比表面积和独特的蜂窝状结构。Cellular mesoporous silica nanoreactors containing cobalt oxide(Co_(x)O_(y)@CMSNs)were prepared by one-step method using micelles formed by CTAB and 1-dodecanethiol in water as templates.The degradation effect of different types of dyes by Co_(x)O_(y)@CMSNs and Co_(x)O_(y)/SiO_(2) were studied.The effects of synthetic conditions and the catalytic parameters for degradation of dyes on the degradation efficiency for Co_(x)O_(y)@CMSNs were investigated,and the stability of the nanoreactor with the best catalytic effect was studied.Compared with the supported catalyst,Co_(x)O_(y)@CMSNs has shown excellent catalytic activity,stability,and dye suitability,mainly attributed to highly dispersed Co_(x)O_(y),rich pore structure,high specific surface area,and unique cellular structure of Co_(x)O_(y)@CMSNs.

关 键 词：蜂窝结构 软模板法 纳米反应器 氧化钴 染料降解 

分 类 号：X703[环境科学与工程—环境工程] O643.36[理学—物理化学]