National Research Centre (NRC, Scopus affiliation ID 60014618), Textile Research and Technology Institute (TRTI), Dyeing, Printing and Textile Intermediate Department (DPTID), El-Behouth St. (former El-Tahrir str.), Dokki, P.O. 12622 Giza, Egypt.
National Research Centre (NRC, Scopus affiliation ID 60014618), Textile Research and Technology Institute (TRTI), Pre-treatment and Finishing of Cellulose-based Fibers Department (PFCFD), El-Behouth St. (former El-Tahrir str.), Dokki, P.O. 12622 Giza, Egypt.
Int J Biol Macromol. 2023 Sep 1;248:125940. doi: 10.1016/j.ijbiomac.2023.125940. Epub 2023 Jul 21.
Rice straw waste was used to extract natural cellulose fibers, which was then chemically converted to cellulose gel. Both extracted cellulose and modified cellulose (gel) were characterized using different techniques and used for biosorption of b+arium, manganese, cobalt, nickel, copper, zinc, and cadmium. Both celluloses' chemical compositions were investigated. The FT-IR, XRD, TEM, and SEM results all support the success of the proposed chemical modification. Because of the increase in pore size within the gel composition, the metal sorption capability of the final chelating material (gel) was greater than that of extracted cellulose. The experimental data were fit to the sorption isotherm models of Langmuir, Freundlich, and Temkin. This new modified biopolymer's behaviour suggested that it could be used as a promising sorbent for cation removal from polluted dye baths and waste water. Furthermore, this modified cellulose was prepared as cheap material extracted from the rise waste which helping in protection of the environment and it was confirm excellent behaviour in the removal heavy metals from their aqueous solution compared to the previous materials reported before.
稻草废料被用于提取天然纤维素纤维，然后将其化学转化为纤维素凝胶。提取的纤维素和改性纤维素（凝胶）都使用不同的技术进行了表征，并用于吸附钡、锰、钴、镍、铜、锌和镉。两种纤维素的化学成分都进行了研究。FT-IR、XRD、TEM 和 SEM 结果都支持所提出的化学改性的成功。由于凝胶成分内孔径的增加，最终螯合材料（凝胶）的金属吸附能力大于提取的纤维素。实验数据符合 Langmuir、Freundlich 和 Temkin 吸附等温线模型。这种新型改性生物聚合物的行为表明，它可以用作从污染的染料浴和废水中去除阳离子的有前途的吸附剂。此外，这种改性纤维素是由上升废料中提取的廉价材料制备而成，有助于保护环境，并且在去除其水溶液中的重金属方面表现出优异的性能，优于之前报道的材料。
