Modified cellulose membrane prepared from corn stalk for adsorption of methyl blue

Wu, Lishun; Sun, Jiatong; Wu, Mengting

doi:10.1007/s10570-017-1523-3

Cited by 33 publications

(13 citation statements)

References 44 publications

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“…The values of qmax acquired from Langmuir equation were 98.3 mg•g -1 , 108.9 mg•g -1 and 110.9 mg•g -1 at different temperatures, respectively. They were closer to the maximum adsorption capacity obtained experimentally and comparable of the previous studies for various adsorbents, such as multiwall carbon nanotube (335.7 mg•g -1 ) [41], discarded tyres activated carbon (137.1 mg•g -1 ) [42], peanut husk (51.02 mg•g -1 ) [43] and corn stalk cellulose (9.06 mg•g -1 ) [44]. From Tab.…”

Section: Adsorption Of Methyl Blue In Water By Cga and Pcgasupporting

confidence: 90%

Study on the Preparation and Adsorption Property of Polyvinyl alcohol/Cellulose Nanocrystal/Graphene Composite Aerogels (PCGAs)

Wu¹,

Wu²,

Yang³

et al. 2019

Journal of Renewable Materials

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The cellulose nanocrystals/graphene composite aerogel (CGA) and polyvinyl alcohol/cellulose nanocrystals/graphene composite aerogel (PCGA) were prepared by suspension titration, tert-butanol solution replacement and freeze-drying successively. The removal rates of methyl blue (MB) from water by CGA and PCGA were evaluated and the effects of additions, adsorption time, reaction temperature and pH value of CGA and PCGA on MB removal rate were discussed. It was found that the optimal concentrations of both CGA and PCGA were 2 g•L-1 in the adsorption reaction process and the adsorption equilibrium was reached within 120 min. The higher the initial pH value of MB solution is, the better the removal effect will be. The adsorption kinetics conformed to the pseudosecond-order kinetic model. The langmuir isothermal adsorption equation showed the maximum adsorption capacities of CGA and PCGA were 125 mg•g-1 and 110.9 mg•g-1 , respectively. Under the conditions of adsorption time of 120 min, reaction temperature of 323 K, and initial MB solution pH value of 11, both CGA and PCGA had higher removal rates of MB, reaching more than 98%.

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Section: Adsorption Of Methyl Blue In Water By Cga and Pcgasupporting

confidence: 90%

Study on the Preparation and Adsorption Property of Polyvinyl alcohol/Cellulose Nanocrystal/Graphene Composite Aerogels (PCGAs)

Wu¹,

Wu²,

Yang³

et al. 2019

Journal of Renewable Materials

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“…In addition to the filtration efficiency, the adsorption ability of dyes and heavy-metal ions in water is also vital for the filter paper. 10,13 As shown in Figure 10 S2 in the Supporting Information. The linear regression coefficient (R 2 ) of the Langmuir equation is higher than that of the Freundlich equation, which means that the Langmuir adsorption model provides a better explanation for methyl blue adsorption of the HAPNW/CF filter paper.…”

Section: Resultsmentioning

confidence: 99%

“…9 For example, Wu et al prepared an amino-functionalized cellulose membrane with a tensile strength to adsorb methyl blue (MB) in aqueous solution with a high water flux. 10 Heydarifard et al developed a foam-formed cellulose filter paper for drinking water treatment, and the cellulose foam paper showed a stable wet strength performance and excellent antimicrobial properties. 11 In addition, the cellulose fiber paper could effectively reject nanoparticles and oil, along with a specific adsorption capacity on heavy-metal ions in water.…”

Section: Introductionmentioning

confidence: 99%

Ultralong Hydroxyapatite Nanowire-Based Filter Paper for High-Performance Water Purification

Zhang

Zhu

et al. 2019

ACS Appl. Mater. Interfaces

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A new kind of environmentally friendly filter paper based on ultralong hydroxyapatite nanowires (HAPNWs) and cellulose fibers (CFs) with excellent filtration and adsorption properties has been developed for the application in high-performance water purification. The use of polyamidoamine-epichlorohydrin (PAE) resin increases the wet mechanical strength of the as-prepared HAPNW/CF filter paper. The addition of CFs enhances the mechanical strength of the HAPNW/CF filter paper. Owing to the porous structure and superhydrophilicity of the as-prepared HAPNW/CF filter paper, the pure water flux is as high as 287.28 L m −2 h −1 bar −1 under cross-flow conditions, which is about 3200 times higher than that of the cellulose fiber paper with addition of PAE. More importantly, the as-prepared HAPNW/CF filter paper shows superior performance in the removal of TiO 2 nanoparticles (>98.61%) and bacteria (up to 100%) in water by the size exclusion and blocking effect. In addition, the HAPNW/CF filter paper also exhibits high adsorption capacities for methyl blue (273.97 mg g −1 ) and Pb 2+ ions (508.16 mg g −1 ). The adsorption mechanism of the HAPNW/CF filter paper is investigated. The as-prepared environmentally friendly HAPNW/CF filter paper with both excellent filtration and adsorption properties has promising application in high-performance water purification to tackle the worldwide water scarcity problem.

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“…Azo dyes such as AB93 are widely used in a number of industrial and biological applications, and among other dyes, they attribute most detrimental environmental impacts. , In this study, AB93 was selected as representative of azo dye to investigate the CNFs, CS, and their aerogel ability to adsorb pollutants from the aqueous system.…”

Section: Results and Discussionmentioning

confidence: 99%

“…Furthermore, Langmuir, Freundlich, and Dubinin–Radushkevich (D–R) adsorption isotherms, pseudo-first- and pseudo-second-order kinetics models, and thermodynamics parameters were evaluated to describe the adsorption of AB93 from the aqueous medium on the prepared CS/CNF aerogel. To the best of our knowledge, the removal of acid blue 93 dye as representative of azo dyes using cross-linked cellulose/CS aerogels has not been reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Highly Porous Cellulose Nanofibrils/Chitosan Aerogel for Acid Blue 93 Adsorption: Kinetics, Isotherms, and Thermodynamics Analysis

et al. 2021

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A novel biobased and highly porous aerogel was fabricated by cross-linking between chitosan (CS) and cellulose nanofibrils (CNFs). The structural and chemical characteristics of the produced CS/CNF aerogel were investigated using several techniques and the adsorption potential of the CS/CNF aerogel was determined by adsorption of acid blue 93 dye (AB93) under different conditions and the isotherm, kinetic, and thermodynamic characteristics of AB93 dye adsorption were analyzed. The investigations showed that the CS/CNF aerogel with a highly connected porous structure and large specific surface area has been successfully fabricated. The isotherm study indicated that the absorption of AB93 with the CS/CNF aerogel obeyed the Langmuir adsorption isotherm with a maximum uptake capacity of 1428.7 (mg g −1 ) at 308 K, which was higher than those reported recently for various absorbents. Overall results of adsorption indicated that the CS/CNF aerogel was a promising material for rapid and efficient adsorption of anionic dyes.

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Modified cellulose membrane prepared from corn stalk for adsorption of methyl blue

Cited by 33 publications

References 44 publications

Study on the Preparation and Adsorption Property of Polyvinyl alcohol/Cellulose Nanocrystal/Graphene Composite Aerogels (PCGAs)

Study on the Preparation and Adsorption Property of Polyvinyl alcohol/Cellulose Nanocrystal/Graphene Composite Aerogels (PCGAs)

Ultralong Hydroxyapatite Nanowire-Based Filter Paper for High-Performance Water Purification

Preparation and Characterization of Highly Porous Cellulose Nanofibrils/Chitosan Aerogel for Acid Blue 93 Adsorption: Kinetics, Isotherms, and Thermodynamics Analysis

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