热重分析
吸附
材料科学
傅里叶变换红外光谱
亚甲蓝
化学工程
羧甲基纤维素
复合数
水溶液
核化学
壳聚糖
纳米颗粒
催化作用
化学
有机化学
纳米技术
复合材料
光催化
钠
工程类
冶金
作者
Aisha Javed,M.U. Islam,Youssef O. Al‐Ghamdi,Mudassir Iqbal,Marwah Aljohani,Saima Sohni,Syed Shoaib Ahmad Shah,Shahid Ali Khan
标识
DOI:10.1016/j.ijbiomac.2023.128363
摘要
The cationic methylene blue (MB) dye sequestration was studied by using oxidized carboxymethyl cellulose-chitosan (OCMC-CS) and its composite films with silicon carbide (OCMC-CS-SiC), and silica-coated SiC nanoparticles (OCMC-CS-SiC@SiO2). The resulting composite films were characterized through various analytical techniques, including Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Thermogravimetric analysis (TGA), Field emission scanning electron microscopy (FESEM), and energy-dispersive X-ray spectroscopy (EDS). The dye adsorption properties of the synthesized composite films were comprehensively investigated in batch experiments and the effects of parameters such as contact time, initial dye concentration, catalyst dosages, temperature, and pH were systematically evaluated. The results indicated that the film's adsorption efficiency was increased by increasing the contact time, catalyst amount, and temperature, and with a decreased initial concentration of dye solution. The adsorption efficiency was highest at neutral pH. The experimental results demonstrated that OCMC-CS films have high dye adsorption capabilities as compared to OCMC-CS-SiC, and OCMC-CS-SiC@SiO2. Additionally, the desorption investigation suggested that the adsorbents are successfully regenerate. Overall, this study contributes to the development of sustainable and effective adsorbent materials for dye removal applications. These films present a promising and environmentally friendly approach to mitigate dye pollution from aqueous systems.
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