Polymer Chemistry Laboratory, Department of Applied Chemistry, Indian School of Mines, Dhanbad, India.
Bioresour Technol. 2013 Sep;144:485-91. doi: 10.1016/j.biortech.2013.06.108. Epub 2013 Jul 4.
The aim of this work is to study the feasibility of XG-g-PAM/SiO2 nanocomposite towards its potential application as high performance adsorbent for removal of Congo red (CR) dye from aqueous solution. The surface area, average pore size and total pore volume of the developed nanocomposite has been determined. The efficiency of CR dye adsorption depends on various factors like pH, temperature of the solution, equilibrium time of adsorption, agitation speed, initial concentration of dye and adsorbent dosage. It has been observed that the nanocomposite is having excellent CR dye adsorption capacity (Q0=209.205 mg g(-1)), which is considerably high. The dye adsorption process is controlled by pseudo-second order and intraparticle diffusion kinetic models. The adsorption equilibrium data correlates well with Langmuir isotherm. Desorption study indicates the efficient regeneration ability of the dye loaded nanocomposite.
本工作旨在研究 XG-g-PAM/SiO2 纳米复合材料作为高效吸附剂从水溶液中去除刚果红（CR）染料的应用潜力。已确定所开发的纳米复合材料的表面积、平均孔径和总孔体积。CR 染料吸附的效率取决于各种因素，如 pH 值、溶液温度、吸附平衡时间、搅拌速度、染料初始浓度和吸附剂用量。结果表明，纳米复合材料具有出色的 CR 染料吸附能力（Q0=209.205 mg g(-1)），这是相当高的。染料吸附过程受伪二级和内扩散动力学模型控制。吸附平衡数据与 Langmuir 等温线很好地相关。解吸研究表明，负载染料的纳米复合材料具有有效的再生能力。
