Applied Organic Chemistry Department, Chemical Industries Research Institute, National Research Centre, Scopus affiliation ID 60014618, 33 EL Buhouth St., Dokki, Giza 12622, Egypt.
Photochemistry Department, Chemical Industries Research Institute, National Research Centre, Scopus affiliation ID 60014618, 33 EL Buhouth St., Dokki, Giza 12622, Egypt.
Int J Biol Macromol. 2023 Jun 15;240:124498. doi: 10.1016/j.ijbiomac.2023.124498. Epub 2023 Apr 17.
The application of newly formulated beads from copper-benzenetricarboxylate (Cu-BTC), polyacrylonitrile (PAN), and chitosan (C), Cu-BTC@C-PAN, C-PAN, and PAN, for the removal of phenolic chemicals from water, is described in the current paper. Phenolic compounds (4-chlorophenol (4-CP) and 4-nitrophenol (4-NP)) were adsorbed using beads and the adsorption optimization looked at the effects of several experimental factors. The Langmuir and Freundlich models were used to explain the adsorption isotherms in the system. A pseudo-first and second-order equation is performed for describing the kinetics of adsorption. The obtained data fit (R = 0.999) supports the suitability of the Langmuir model and pseudo-second-order kinetic equation for the adsorption mechanism. Cu-BTC@C-PAN, C-PAN, and PAN beads' morphology and structure were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transforms infrared spectroscopy (FT-IR). According to the findings, Cu-BTC@C-PAN has very high adsorption capacities of 277.02, and 324.74 mg g, for 4-CP and 4-NP, respectively. The Cu-BTC@C-PAN beads showed 2.55 times higher adsorption capacity than PAN in the case of 4-NP, but in the case of 4-CP, it was higher by 2.64 times.
本文描述了铜苯三甲酸（Cu-BTC）、聚丙烯腈（PAN）和壳聚糖（C）新配方珠粒在水中去除酚类化学品中的应用。使用珠粒吸附酚类化合物（4-氯苯酚（4-CP）和 4-硝基苯酚（4-NP）），并考察了几个实验因素对吸附优化的影响。该体系采用 Langmuir 和 Freundlich 模型来解释吸附等温线。采用拟一级和二级方程来描述吸附动力学。获得的数据拟合（R=0.999）支持 Langmuir 模型和拟二级动力学方程适用于吸附机制。使用 X 射线衍射（XRD）、扫描电子显微镜（SEM）和傅里叶变换红外光谱（FT-IR）研究了 Cu-BTC@C-PAN、C-PAN 和 PAN 珠粒的形态和结构。研究结果表明，Cu-BTC@C-PAN 对 4-CP 和 4-NP 的吸附容量分别高达 277.02 和 324.74 mg/g。在 4-NP 的情况下，Cu-BTC@C-PAN 珠粒的吸附容量比 PAN 高 2.55 倍，而在 4-CP 的情况下，吸附容量高 2.64 倍。
