Synthesis of cellulose based super absorbent and its excellent oil–water separation properties
About: This article is published in Journal of Applied Polymer Science.The article was published on 2021-11-05 and is currently open access. It has received 2 citations till now. The article focuses on the topics: Cellulose.
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TL;DR: In this article , a series of hyperbranched polyether crosslinkers were designed and employed as effective crosslinker to create feasible, high-performance superabsorbent hydrogels that are environmentally friendly.
Abstract: The fabrication of biodegradable superabsorbent hydrogels (SAHs) with a high absorption capacity and robust gel strength at an acceptable cost remains challenging. In this study, a series of hyperbranched polyether crosslinkers were designed and employed as effective crosslinkers to create feasible, high-performance superabsorbent hydrogels that are environmentally friendly. The hydrogel materials achieved greater strength compared with traditional hydrogels by using hyperbranched polyether to create a homogenous and strongly crosslinked polymer network. In addition, it was determined that the addition of modified sodium lignosulfonate improved several characteristics of traditional hydrogels, including the absorption and fixation of water, and that the produced hydrogels have good antibacterial properties. According to an analysis of the structure–activity relationship, the resultant SAHs achieve greater saturated gel strength (∼2 kPa) and swelling capacities (91.6 g/g in normal saline) compared with commercial products. This study provides a promising approach for the fabrication of biodegradable SAHs owing to its varied engineering applications, low cost, and good environmental profile.
1 citations
TL;DR: In this article , a superabsorbent resin (p-CS-HA-PAA) was obtained by plasma modification, and the optimum modification conditions were obtained, such as discharge time of 180 s, discharge power of 40 W, and discharge pressure of 20 Pa.
Abstract: This research aimed to prepare superabsorbent resin from agro-mining waste, which is important for sustainable development and practical application in agriculture and forestry. Corn stover (CS), humic acid (HA), acrylic acid (AA), and acrylamide (AM) were used as raw materials to produce CS–HA-based superabsorbent resin (p-CS-HA-PAA) by plasma modification, and the optimum modification conditions were obtained. The superabsorbent resin was characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, and contact angle analysis. The adsorption characteristics of the superabsorbent resin were analyzed by kinetic model fitting, and the performances were tested. The results showed that the water absorption capacity could reach 1106.9 g/g under the following optimal process conditions: a discharge time of 180 s, a discharge power of 40 W, and a discharge pressure of 20 Pa. The characterization confirmed that plasma modification could make the surface of the superabsorbent resin rougher, produce more and larger pores, and introduce more hydrophilic groups. The p-CS-HA-PAA conformed to the pseudo-second-order kinetic equation and non-Fickian intradiffusion process in aqueous solution. The chemical resistance, repeated liquid absorption, and water retention properties of the modified resin were better than those of the unmodified resin, which provided a viable way for industrial and agricultural applications.
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TL;DR: The heavy metal adsorption capacities for these modified cellulose materials were found to be significant and levels of uptake were comparable, in many instances, to both other naturally occurring adsorbent materials and commercial ion exchange type resins.
1,127 citations
TL;DR: This review comprises the work conducted by various researchers in the field of the removal and recovery of spilled oils using various biomasses and polymers, either in the form of sorbents or separators.
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278 citations
TL;DR: The use of cellulose fibers, nanocellulose, and cellulose derivatives as fillers or matrices in biocomposite materials is an efficient biosustainable alternative for the production of high-quality polymer composites and functional polymeric materials as discussed by the authors.
Abstract: Cellulose has attracted considerable attention as the strongest potential candidate feedstock for bio-based polymeric material production. During the past decade, significant progress in the production of biopolymers based on different cellulosic forms has been achieved. This review highlights the most recent advances and developments in the three main routes for the production of cellulose-based biopolymers, and discusses their scope and applications. The use of cellulose fibers, nanocellulose, and cellulose derivatives as fillers or matrices in biocomposite materials is an efficient biosustainable alternative for the production of high-quality polymer composites and functional polymeric materials. The use of cellulose-derived monomers (glucose and other platform chemicals) in the synthesis of sustainable biopolymers and functional polymeric materials not only provides viable replacements for most petroleum-based polymers but also enables the development of novel polymers and functional polymeric materials. The present review describes the current status of biopolymers based on various forms of cellulose and the scope of their importance and applications. Challenges, promising research trends, and methods for dealing with challenges in exploitation of the promising properties of different forms of cellulose, which are vital for the future of the global polymeric industry, are discussed. Sustainable cellulosic biopolymers have potential applications not only in the replacement of existing petroleum-based polymers but also in cellulosic functional polymeric materials for a range of applications from electrochemical and energy-storage devices to biomedical applications.
230 citations
TL;DR: This review article provides a comprehensive knowledge on the distillery wastewater pollutants, various techniques used for their analysis as well as its toxicological effects on environments, human and animal health.
216 citations