Comparison of Structure and Adsorption Properties of Mesoporous Silica Functionalized with Aminopropyl Groups by the Co-Condensation and the Post Grafting Methods.
Comparison of Structure and Adsorption Properties of Mesoporous Silica Functionalized with Aminopropyl Groups by the Co-Condensation and the Post Grafting Methods.
复制标题
DOI：
10.3390/ma14030628
复制
发表时间：
2021-01-29
期刊：
影响因子：
--
通讯作者：
Almásy L
中科院分区：
文献类型：
--
作者：
Putz AM;Ciopec M;Negrea A;Grad O;Ianăşi C;Ivankov OI;Milanović M;Stijepović I;Almásy L
评估了通过共缩合和后接枝方法获得的氨丙基官能化介孔二氧化硅材料的吸附潜力。氮吸附、小角中子和 X 射线散射（SANS 和 SAXS）证明了其高表面积和有序的六边形孔隙结构，适合用作废水中金属的吸附剂。对不同功能化方法制备的材料的 Cr(VI) 吸附性能进行了比较。所得结果证明了由于铬离子与氨基的亲和力而产生的吸附能力，并表明与氨丙基后合成接枝到介孔二氧化硅颗粒上相比，四乙氧基硅烷（TEOS）和3-氨基丙基三乙氧基硅烷（APTES）的共缩合导致材料具有更高的金属吸附能力。
The adsorptive potential has been evaluated for the aminopropyl functionalized mesoporous silica materials obtained by co-condensation and post grafting methods. Nitrogen sorption, small angle neutron and X-ray scattering (SANS and SAXS) demonstrated high surface area and well-ordered hexagonal pore structure suitable for applications as adsorbents of metals from waste waters. A comparison of Cr(VI) adsorption properties of the materials prepared by different functionalization methods has been performed. The obtained results demonstrated the adsorption capacity due to the affinity of the chromium ions to the amino groups, and showed that co-condensation of tetraethoxysilane (TEOS) and 3-aminopropyl triethoxysilane (APTES) resulted in higher metal sorption capacity of the materials compared to post-synthesis grafting of aminopropyl groups onto the mesoporous silica particles.
登录
查看更多内容
通过PEI-SILICA纳米复合材料从水溶液中去除铬。
影响因子：
4.6
作者：
Choi K;Lee S;Park JO;Park JA;Cho SH;Lee SY;Lee JH;Choi JW
通讯作者：
Choi JW
影响因子：
9.9
作者：
Ahmad, A. L.;Mustafa, N. N. N.
通讯作者：
Mustafa, N. N. N.
DOI：
10.1016/j.chemolab.2019.03.014
发表时间：
2019-06-15
影响因子：
3.9
作者：
Ben Khalifa, E.;Rzig, B.;Hamrouni, B.
通讯作者：
Hamrouni, B.
影响因子：
5.2
作者：
Kamarudin, N. H. N.;Jalil, A. A.;Ahmad, A.
通讯作者：
Ahmad, A.
影响因子：
2.9
作者：
Ciopec, Mihaela;Davidescu, Corneliu Mircea;Lupa, Lavinia
通讯作者：
Lupa, Lavinia