Kumar Vaneet, Bhatt Diksha, Pandey Sadanand, Ghfar Ayman A
Department of Biotechnology, CT Institute of Pharmaceutical Sciences (CTIPS), CT Group of Institutions Shahpur Campus Jalandhar Punjab India.
School of Natural Science, CT University Ludhiana Punjab India
RSC Adv. 2023 Mar 14;13(12):8409-8419. doi: 10.1039/d2ra03885d. eCollection 2023 Mar 8.
The present work describes the synthesis of a cellulose and gelatin based hydrogel by the grafting of poly(acrylic acid) using ammonium persulphate (APS)-glutaraldehyde as the initiator-crosslinker system. The structure of the hydrogel was studied through scanning electron microscopy (SEM) and FTIR. The maximum swelling rate of C-G-g-poly(AA) was found to be 92 g g at pH 10. The size and structure of the prepared silver nanoparticles (AgNPs) were studied through TEM and zeta potential, and it was found that the synthesized AgNPs were spherical and the size range was 11-30 nm. The reduction process followed pseudo 1st order kinetics. EtBr and eosin dye degradation were more than 4 times faster, when AgNPs were used with sodium borohydride. Thus, it can be concluded that the synthesized C-G-g-poly(AA) AgNPs hybrid hydrogel is effective for the reduction and degradation of carcinogenic dyes in wastewater.
本研究描述了以过硫酸铵（APS）-戊二醛为引发剂-交联剂体系，通过接枝聚丙烯酸合成纤维素和明胶基水凝胶的过程。通过扫描电子显微镜（SEM）和傅里叶变换红外光谱（FTIR）研究了水凝胶的结构。发现C-G-g-聚（AA）在pH值为10时的最大溶胀率为92 gg。通过透射电子显微镜（TEM）和zeta电位研究了制备的银纳米颗粒（AgNPs）的尺寸和结构，发现合成的AgNPs呈球形，尺寸范围为11-30 nm。还原过程遵循准一级动力学。当AgNPs与硼氢化钠一起使用时，溴化乙锭和曙红染料的降解速度加快了4倍以上。因此，可以得出结论，合成的C-G-g-聚（AA）/AgNPs杂化水凝胶对废水中致癌染料的还原和降解是有效的。
