当前位置：
X-MOL 学术
›
J. Photochem. Photobiol. B Biol.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Immobilization of Cu3(btc)2 on graphene oxide-chitosan hybrid composite for the adsorption and photocatalytic degradation of methylene blue.
Journal of Photochemistry and Photobiology B: Biology ( IF 3.9 ) Pub Date : 2020-01-27 , DOI: 10.1016/j.jphotobiol.2020.111809 Melvin S Samuel 1 , Swati Suman 2 , Venkateshkannan 3 , Ethiraj Selvarajan 4 , Thangavel Mathimani 5 , Arivalagan Pugazhendhi 6
Journal of Photochemistry and Photobiology B: Biology ( IF 3.9 ) Pub Date : 2020-01-27 , DOI: 10.1016/j.jphotobiol.2020.111809 Melvin S Samuel 1 , Swati Suman 2 , Venkateshkannan 3 , Ethiraj Selvarajan 4 , Thangavel Mathimani 5 , Arivalagan Pugazhendhi 6
Affiliation
|
The graphene oxide (GO)-based materials are appealing channels for water treatment, their separation from water for recycle remains a task. The Cu3(btc)2 (btc = benzene-1,3,5-tricarboxylic acid) metal organic framework (MOF) was covalently immobilized onto chitosan (CS)/graphene oxide (GO) to form a catalyst material, which was subjected to characterization by XRD, FTIR, SEM, TEM, BET, and UV-vis diffusive reflectance spectra. MOFs are permeable crystalline compounds consisting of metal ions and polyfunctional organic ligands. The structural characterization revealed that the Cu3(btc)2 and chitosan were incorporated into the graphene oxide structure. The adsorption of MB by GO-CS@Cu3(btc)2 catalyst was clearly defined by Langmuir isotherm and pseudosecond order kinetic model. GO-CS@Cu3(btc)2 was found to possess an adsorption capacity of ~357.15 mg/g. The findings displayed the probability of reusing the catalyst material for several photocatalytic processes. The GO-CS@Cu3(btc)2 catalyst material exhibited 98% degradation of MB within 60 min under UV irradiation. The obtained MB degradation results were fitted onto a Langmuir-Hinshelwood (L-H) plot. The GO-CS@Cu3(btc)2 catalyst material exhibited high degradation efficiencies at neutral pH conditions. The results have shown that the GO-CS@Cu3(btc)2 catalyst material can be used as a catalyst for adsorption and as a photocatalyst for the efficient degradation of methylene blue from aqueous solutions.
中文翻译：
Cu3（btc）2固定在氧化石墨烯-壳聚糖杂化复合材料上用于亚甲基蓝的吸附和光催化降解。
基于氧化石墨烯（GO）的材料是水处理的诱人渠道，将其与水分离以进行回收仍然是一项任务。将Cu3（btc）2（btc =苯-1,3,5-三羧酸苯）金属有机骨架（MOF）共价固定在壳聚糖（CS）/氧化石墨烯（GO）上以形成催化剂材料，然后对其进行处理通过XRD，FTIR，SEM，TEM，BET和UV-vis漫反射光谱进行表征。MOF是由金属离子和多官能有机配体组成的可渗透晶体化合物。结构表征表明，Cu3（btc）2和壳聚糖被掺入氧化石墨烯结构中。Langmuir等温线和拟二级动力学模型清楚地定义了GO-CS @ Cu3（btc）2催化剂对MB的吸附。发现GO-CS @ Cu3（btc）2具有〜357的吸附容量。15毫克/克。研究结果显示了将催化剂材料重新用于几种光催化过程的可能性。在紫外线照射下，GO-CS @ Cu3（btc）2催化剂材料在60分钟内MB降解98％。将获得的MB降解结果拟合到Langmuir-Hinshelwood（LH）图上。GO-CS @ Cu3（btc）2催化剂材料在中性pH条件下显示出高降解效率。结果表明，GO-CS @ Cu3（btc）2催化剂材料可用作吸附催化剂和光催化剂，可有效地从水溶液中降解亚甲基蓝。将获得的MB降解结果拟合到Langmuir-Hinshelwood（LH）图上。GO-CS @ Cu3（btc）2催化剂材料在中性pH条件下显示出高降解效率。结果表明，GO-CS @ Cu3（btc）2催化剂材料可用作吸附催化剂和光催化剂，可有效地从水溶液中降解亚甲基蓝。将获得的MB降解结果拟合到Langmuir-Hinshelwood（LH）图上。GO-CS @ Cu3（btc）2催化剂材料在中性pH条件下显示出高降解效率。结果表明，GO-CS @ Cu3（btc）2催化剂材料可用作吸附催化剂和光催化剂，可有效地从水溶液中降解亚甲基蓝。
更新日期：2020-01-27
中文翻译：
Cu3（btc）2固定在氧化石墨烯-壳聚糖杂化复合材料上用于亚甲基蓝的吸附和光催化降解。
基于氧化石墨烯（GO）的材料是水处理的诱人渠道，将其与水分离以进行回收仍然是一项任务。将Cu3（btc）2（btc =苯-1,3,5-三羧酸苯）金属有机骨架（MOF）共价固定在壳聚糖（CS）/氧化石墨烯（GO）上以形成催化剂材料，然后对其进行处理通过XRD，FTIR，SEM，TEM，BET和UV-vis漫反射光谱进行表征。MOF是由金属离子和多官能有机配体组成的可渗透晶体化合物。结构表征表明，Cu3（btc）2和壳聚糖被掺入氧化石墨烯结构中。Langmuir等温线和拟二级动力学模型清楚地定义了GO-CS @ Cu3（btc）2催化剂对MB的吸附。发现GO-CS @ Cu3（btc）2具有〜357的吸附容量。15毫克/克。研究结果显示了将催化剂材料重新用于几种光催化过程的可能性。在紫外线照射下，GO-CS @ Cu3（btc）2催化剂材料在60分钟内MB降解98％。将获得的MB降解结果拟合到Langmuir-Hinshelwood（LH）图上。GO-CS @ Cu3（btc）2催化剂材料在中性pH条件下显示出高降解效率。结果表明，GO-CS @ Cu3（btc）2催化剂材料可用作吸附催化剂和光催化剂，可有效地从水溶液中降解亚甲基蓝。将获得的MB降解结果拟合到Langmuir-Hinshelwood（LH）图上。GO-CS @ Cu3（btc）2催化剂材料在中性pH条件下显示出高降解效率。结果表明，GO-CS @ Cu3（btc）2催化剂材料可用作吸附催化剂和光催化剂，可有效地从水溶液中降解亚甲基蓝。将获得的MB降解结果拟合到Langmuir-Hinshelwood（LH）图上。GO-CS @ Cu3（btc）2催化剂材料在中性pH条件下显示出高降解效率。结果表明，GO-CS @ Cu3（btc）2催化剂材料可用作吸附催化剂和光催化剂，可有效地从水溶液中降解亚甲基蓝。
京公网安备 11010802027423号