Effective removal of crystal violet in the aqueous solution using magnetic composites originated from sugarcane bagasse

IF 2.2 4区 化学 Q2 Engineering
Phuong Lan Tran-Nguyen, Kim-Phung Ly, Huynh-Giao Dang, Minh-Nhut Nguyen, Van-Phat Dang, Nguyen-Phuong-Dung Tran, Shella Permatasari Santoso, Maria Yuliana, Artik Elisa Angkawijaya, Tran Thi Bich Quyen, Tran Thi Minh Thu, Vo Hoang Khang
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Abstract

This study targeted to generating composites comprised of sugarcane bagasse (SCB) and magnetic particles (MPs) under a facile and low-cost approach. Moreover, the adsorption performance of composites, treated SCB, and MPs for crystal violet (CV) was evaluated. Cellulose fibers were firstly isolated from SCB with a two-step process and employed as a matrix material to randomly adhere MPs via an in situ chemical co-precipitation method at room temperature. The properties of the composite were determined through analysis methods such as X-ray diffractometer (XRD), scanning electron microscopy with energy-dispersive X-ray analysis (EDX/SEM), Fourier transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TGA), vibrating sample magnetometer (VSM), and Brunauer–Emmett–Teller (BET). Magnetization, surface area, and pore diameter of magnetic fiber composite were 11.1 emu/g, 20 m2/g, and 0.002 cm3/g, respectively. The characteristic peaks of cellulose and MPs were found in XRD results, whereas the Fe content in composite was 27.52%. FTIR spectra also exposed the characteristic functional groups of MPs and treated SCB. Additionally, the CV removal using composites was evaluated with the adsorption efficiency and capacity of 72.09% and 77.22 mg/g, respectively, at pH 7, an adsorbent dose of 2 g/L, a CV concentration of 150 mg/L within 30 min. The adsorption process corresponded to the Sips model and the pseudo-second-order kinetic model. Besides, the mechanism of CV adsorption was primarily characterized by heterogeneous adsorption on the surface and physical sorption. In short, the obtained composite was a promising adsorbent for treating the dye-containing wastewater.

Abstract Image

利用蔗渣磁性复合材料有效去除水溶液中的结晶紫
本研究旨在以甘蔗甘蔗渣(SCB)和磁性颗粒(MPs)为原料,制备一种简单、低成本的复合材料。此外,还考察了复合材料、处理过的SCB和MPs对结晶紫(CV)的吸附性能。首先采用两步法从SCB中分离纤维素纤维,并在室温下采用原位化学共沉淀法将其作为基质材料随机粘附MPs。通过x射线衍射仪(XRD)、能量色散x射线扫描电镜(EDX/SEM)、傅里叶变换红外光谱(FTIR)、热重分析(TGA)、振动样品磁强计(VSM)和布鲁诺尔-埃米特-泰勒(BET)等分析方法对复合材料的性能进行了测定。磁性纤维复合材料的磁化强度为11.1 emu/g,比表面积为20 m2/g,孔径为0.002 cm3/g。XRD结果显示,复合材料中存在纤维素和MPs的特征峰,铁含量为27.52%。FTIR光谱还显示了MPs和处理过的SCB的特征官能团。在pH为7、吸附剂剂量为2 g/L、CV浓度为150 mg/L、吸附时间为30 min的条件下,复合材料对CV的吸附效率和容量分别为72.09%和77.22 mg/g,吸附过程符合Sips模型和拟二级动力学模型。CV吸附机理主要表现为表面非均相吸附和物理吸附。总之,该复合材料是一种很有前途的处理含染料废水的吸附剂。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Chemical Papers
Chemical Papers Chemical Engineering-General Chemical Engineering
CiteScore
3.30
自引率
4.50%
发文量
590
期刊介绍: Chemical Papers is a peer-reviewed, international journal devoted to basic and applied chemical research. It has a broad scope covering the chemical sciences, but favors interdisciplinary research and studies that bring chemistry together with other disciplines.
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