In-situ growing ZIF-8 on cellulose nanofibers to form gas separation membrane for CO2 separation

Jia, Mingjun; Zhang, Xiongfei; Feng, Yi; Zhou, Yichen; Yao, Jianfeng

doi:10.1016/j.memsci.2019.117579

Cited by 125 publications

(27 citation statements)

References 32 publications

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“…It can be speculated that the reduction of the energy required in the process of water evaporation was attributed to the interactions between ZIF‐8 particles and cellulose, thereby accelerating water evaporation. [ 21 ] The evaporation rates can be calculated using the following equation [ 22 ]

v_{normale} = \frac{d m_{normale}}{A \cdot d t}

where m e is the loss weight of water under 1 sun irradiation, A is the evaporation projected area, t is evaporation time. Meanwhile, the evaporation efficiency ( η ) also can be calculated by using v e .

η = \frac{v_{normale} h_{LV}}{P_{sun}}

…”

Section: Resultsmentioning

confidence: 99%

Integrating a Metal–Organic Framework into Natural Spruce Wood for Efficient Solar‐Powered Water Evaporation

et al. 2022

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With the increase in water consumption and pollution resulting from the rising world population and industrial development, severe fresh water shortage has been regarded as one of the critical problems facing the world. Solar‐driven water purification is an environment friendly and promising technology to address the problem. However, low photothermal conversion efficiency impedes its practical application. Herein, a natural spruce wood‐based solar evaporator functionalized with zeolitic imidazolate framework (ZIF‐8) nanoparticles and polydopamine (PDA) layers is designed, which significantly reduces the equivalent evaporation enthalpy and substantially boosts solar evaporation efficiency. The evaporation rate of the optimized wood‐based evaporator reached 2.28 kg m−2 h−1 with a high evaporation efficiency of 87.5% under 1.0 sun. Furthermore, the integrated spruce wood/ZIF‐8/PDA hybrids can remove organic pollutants after solar evaporation. Notably, the constructed multifunctional solar evaporator takes advantage of sustainable solar energy, low‐cost biomass, and ZIF‐8/PDA nanostructures to acquire desirable performance in water evaporation and sewage purification.

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v_{normale} = \frac{d m_{normale}}{A \cdot d t}

η = \frac{v_{normale} h_{LV}}{P_{sun}}

…”

Section: Resultsmentioning

confidence: 99%

Integrating a Metal–Organic Framework into Natural Spruce Wood for Efficient Solar‐Powered Water Evaporation

et al. 2022

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“…The exible membranes showed optical transparency and CO 2 / N 2 selectivity of 6 with 25 to 50 wt% ZIF-8 loadings. 164 In the studies of Yao et al, a series of membranes of cellulose nanobrils with added Zn and Ca cations, 165 Zn-ZIF (ZIF-8), 166 and amine-modied Zr-ZIF (UiO-66-NH 2 ) 167 were developed for CO 2 separation. For instance, Jia et al prepared ZIF-8 with TOCNF using different concentrations of MOF salt (10-90 wt%).…”

Section: Hybrid Materials For Separation Applicationsmentioning

confidence: 99%

On the mineralization of nanocellulose to produce functional hybrid materials

Valencia¹,

Handa

Monti

et al. 2022

J. Mater. Chem. A

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“…In-situ growth of nanofiller within polymer has become a more popular approach in recent years to mitigate the issues related to agglomeration and gravitational settling of the nanofiller in the dope solution [129,130]. One way to in-situ grow nanofillers is during the precipitation of the membrane where in-situ chemical reduction is performed in the coagulation bath to transform the precursor to the nanofiller [131].…”

Section: Surface Modifications Of Nanomaterials-the Motivationsmentioning

confidence: 99%

Surface Modifications of Nanofillers for Carbon Dioxide Separation Nanocomposite Membrane

et al. 2020

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CO2 separation is an important process for a wide spectrum of industries including petrochemical, refinery and coal-fired power plant industries. The membrane-based process is a promising operation for CO2 separation owing to its fundamental engineering and economic benefits over the conventionally used separation processes. Asymmetric polymer–inorganic nanocomposite membranes are endowed with interesting properties for gas separation processes. The presence of nanosized inorganic nanofiller has offered unprecedented opportunities to address the issues of conventionally used polymeric membranes. Surface modification of nanofillers has become an important strategy to address the shortcomings of nanocomposite membranes in terms of nanofiller agglomeration and poor dispersion and polymer–nanofiller incompatibility. In the context of CO2 gas separation, surface modification of nanofiller is also accomplished to render additional CO2 sorption capacity and facilitated transport properties. This article focuses on the current strategies employed for the surface modification of nanofillers used in the development of CO2 separation nanocomposite membranes. A review based on the recent progresses made in physical and chemical modifications of nanofiller using various techniques and modifying agents is presented. The effectiveness of each strategy and the correlation between the surface modified nanofiller and the CO2 separation performance of the resultant nanocomposite membranes are thoroughly discussed.

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In-situ growing ZIF-8 on cellulose nanofibers to form gas separation membrane for CO2 separation

Cited by 125 publications

References 32 publications

Integrating a Metal–Organic Framework into Natural Spruce Wood for Efficient Solar‐Powered Water Evaporation

Integrating a Metal–Organic Framework into Natural Spruce Wood for Efficient Solar‐Powered Water Evaporation

On the mineralization of nanocellulose to produce functional hybrid materials

Surface Modifications of Nanofillers for Carbon Dioxide Separation Nanocomposite Membrane

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