Cattail fibers as source of cellulose to prepare a novel type of composite aerogel adsorbent for the removal of enrofloxacin in wastewater

Cui, Fengjiao; Li, Huidong; Chen, Chen; Wang, Zhixia; Liu, Xinxin; Jiang, Gang; Cheng, Tianjia; Bai, Runying; Song, Lei

doi:10.1016/j.ijbiomac.2021.09.022

Cited by 60 publications

(21 citation statements)

References 56 publications

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“…In the third region (between 60% and 80% strain), a dramatic increase in the stress can be observed due to the densification caused by the bending or damage of the mesopores as well as the compression and breakage of the covalent bonds between the fibers [ 63 , 64 , 65 ]. This type of behavior in compression analysis has been reported by other authors [ 56 , 57 , 66 ]. The stress–strain curves show that the strength values increased considerably when consistencies were higher than 0.4%, obtaining the best results at the highest consistency.…”

Section: Resultssupporting

confidence: 82%

“…The crystalline structure of the different CNFs and LCNFs was analyzed by XRD. As shown in Figure 2 , two crystallinity peaks were obtained at 2θ = 16° and 22.5°, which were typical cellulose I peaks [ 56 , 57 ]. It can be observed that the crystallinity index (CI) of cellulose nanofibers from bleached fibers was higher than that obtained from unbleached fibers, due to the reduction in or elimination of the amorphous non-cellulosic compounds (hemicellulose and lignin) present in the fibers as a result of the bleaching treatments, as confirmed by both the chemical characterization and the FTIR analysis.…”

Section: Resultsmentioning

confidence: 99%

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Cellulose Nanofiber-Based Aerogels from Wheat Straw: Influence of Surface Load and Lignin Content on Their Properties and Dye Removal Capacity

et al. 2022

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Water pollution is one of the most serious problems worldwide. Nanocellulose-based aerogels usually show excellent adsorption capacities due to their high aspect ratio, specific surface area and surface charge, making them ideal for water purification. In this work, (ligno)cellulose nanofibers (LCNFs/CNFs) from wheat straw residues were obtained using two types of pre-treatments: mechanical (Mec) and TEMPO-mediated oxidization (TO), to obtain different consistency (0.2, 0.4, 0.6 and 0.8) bioaerogels, and their adsorption capacities as dye removers were further studied. The materials were characterized in terms of density, porosity and mechanical properties. An inversely proportional relationship was observed between the consistencies of the aerogels and their achieved densities. Despite the increase in density, all samples showed porosities above 99%. In terms of mechanical properties, the best results were obtained for the 0.8% consistency LCNF and CNF-Mec aerogels, reaching 67.87 kPa and 64.6 kPa for tensile strength and Young’s modulus, respectively. In contrast, the adsorption capacity of the aerogels was better for TEMPO-oxidized aerogels, reaching removal rates of almost 100% for the CNF-TO5 samples. Furthermore, the residual lignin content in LCNF-Mec aerogels showed a great improvement in the removal capacity, reaching rates higher than 80%, further improving the cost efficiency of the samples due to the reduction in chemical treatments.

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Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Cellulose Nanofiber-Based Aerogels from Wheat Straw: Influence of Surface Load and Lignin Content on Their Properties and Dye Removal Capacity

et al. 2022

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“…In particular, they are great sources for producing energies such as bio-oils, biodiesels, and biogases (Van Meerbeek et al 2015). In terms of generating materials, this biomass could be converted into biochars (Feng et al 2021), activated carbons (Bouhamidi et al 2017;Al-Musawi et al 2021), nanoparticles (Durairaj et al 2019;Davarnejad et al 2020), composites (Wang et al 2020a;Ren et al 2021a), and aerogels (Yang et al 2018;Cui et al 2021). The use of waste biomass from invasive species as adsorbent materials for the removal of pollutants from aqueous streams could decrease their threat, in harmony with the circular economy.…”

Section: Perspectivementioning

confidence: 99%

“…Recently, Feng et al (2021) have summarized the potential of exotic plants for biochar productions and their added value. Several other adsorbents for pollutants removal from invasive species were well reported such as activated carbons (Bouhamidi et al 2017;Al-Musawi et al 2021), nanoparticles (Durairaj et al 2019;Davarnejad et al 2020), composites (Wang et al 2020a;Ren et al 2021a), and aerogels (Yang et al 2018;Cui et al 2021). Although these materials are quite efficient, they necessitate so further preparations, chemicals, time, and energy that they are relatively not suitable for large-scale applications.…”

Section: Introductionmentioning

confidence: 99%

Invasive plants as biosorbents for environmental remediation: a review

et al. 2022

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Water contamination is an environmental burden for the next generations, calling for advanced methods such as adsorption to remove pollutants. For instance, unwanted biowaste and invasive plants can be converted into biosorbents for environmental remediation. This would partly solve the negative effects of invasive plants, estimated at 120 billion dollars in the USA.Here we review the distribution, impact, and use of invasive plants for water treatment, with emphasis on the preparation of biosorbents and removal of pollutants such as cadmium, lead, copper, zinc, nickel, mercury, chromate, synthetic dyes, and fossil fuels. Those biosorbents can remove 90-99% heavy metals from aqueous solutions. High adsorption capacities of 476.190 mg/g for synthetic dyes and 211 g/g for diesel oils have been observed. We also discuss the regeneration of these biosorbents.

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“…In recent years, the low cost adsorbents based on natural bers have been recognized as e cient, cost-effective, and environmental friendly for contamination removal purposes (Candido et al,2021). Owing to small ber diameter and excellent osmotic stability, the plant based cellulose bers have been widely investigated for the adsorption of pollutants, including radionuclides (Bai et al, 2020;Li et al, 2020), heavy metals (Huang et al, 2021;Pang et al, 2020), humic acid (Du et al, 2019), phosphate (Du et al, 2019), dyes (Shao et al, 2021), gold ions (Mostofa et al, 2021) and oil/water separation (Meng et al, 2020;Liu et al,2018) et al Plant-based cellulose bers such as sisal, jute, hemp, coir, kapok, cattail, and cotton linter display lots of advantages over synthetic bers like low-cost, low density, biodegradability, recyclability, environment friendly, and less hazardous over synthetic bers (Chokshi et al, 2020;Cui et al, 2021;Zheng et al, 2020;Silva et al, 2020). Among them, sisal ber (SF) is a most noteworthy and industrially promising bers have attracted particular interest due to its fairly coarse, moderate high speci c strength and stiffness, durability, and resistance to deterioration in saltwater (Tesfamariam et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Quaternized Sisal Fiber by Electron Beam Radiation and its Effective Adsorption for Indigo Carmine from Aqueous Solution

Fan

Dong

et al. 2022

Preprint

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The removal of Indigo carmine (IC) from the aquatic environment is necessary due to its high toxicity. In this study, methacryloxy ethyltrimethyl ammonium chloride (DMC) modified sisal fiber (SF-DMC) was prepared by a one-step process using radiation induced grafting polymerization. The adsorption performance of SF-DMC toward IC dye was investigated by batch adsorption experiments. The adsorption kinetic studies shows that adsorption equilibrium reached within 30 min, and it can be well described by pseudo-second-order model. The adsorption isotherms are well described by Langmuir model, and the theoretical maximum adsorption capacity are 709.22 to 892.86 mg/g at different temperature. The adsorption of IC onto SF-DMC is a spontaneous and exothermic reaction and low temperature is favorable for adsorption. Besides, SF-DMC has good selective adsorption for IC in the mixed anionic dyes and in high-salt solution. The dyes on SF-DMC can be desorbed by 2mol/L HCl solution. Therefore, the SF-DMC exhibits excellent adsorption performance, which is suitable for IC removal from high-salt wastewater.

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Cattail fibers as source of cellulose to prepare a novel type of composite aerogel adsorbent for the removal of enrofloxacin in wastewater

Cited by 60 publications

References 56 publications

Cellulose Nanofiber-Based Aerogels from Wheat Straw: Influence of Surface Load and Lignin Content on Their Properties and Dye Removal Capacity

Cellulose Nanofiber-Based Aerogels from Wheat Straw: Influence of Surface Load and Lignin Content on Their Properties and Dye Removal Capacity

Invasive plants as biosorbents for environmental remediation: a review

Facile Fabrication of Quaternized Sisal Fiber by Electron Beam Radiation and its Effective Adsorption for Indigo Carmine from Aqueous Solution

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