Inorganic matter modified water-based copolymer prepared by chitosan-starch-CMC-Na-PVAL as an environment-friendly coating material

Han, Yanyu; Chen, Songling; Han, Yachun; Zou, Hongtao

doi:10.1016/j.carbpol.2020.115925

Cited by 17 publications

(13 citation statements)

References 39 publications

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“…Composite fertilizers are composed of various materials containing one or more nutrients that have been developed to take advantage of material synergy and improve essential plant nutrition [ 24 , 32 ]. Based on material properties, organic and inorganic coating materials (including granules and hydrophobic or hydrophilic materials [matrix or gel]) and inorganic compounds with low solubility are commonly used for coating or mixing fertilizers [ 24 , 33 , 34 , 35 , 36 , 37 ].…”

Section: Smart Fertilizer Typesmentioning

confidence: 99%

Silicon as a Smart Fertilizer for Sustainability and Crop Improvement

et al. 2022

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Silicon (Si), despite being abundant in nature, is still not considered a necessary element for plants. Si supplementation in plants has been extensively studied over the last two decades, and the role of Si in alleviating biotic and abiotic stress has been well documented. Owing to the noncorrosive nature and sustainability of elemental Si, Si fertilization in agricultural practices has gained more attention. In this review, we provide an overview of different smart fertilizer types, application of Si fertilizers in agriculture, availability of Si fertilizers, and experiments conducted in greenhouses, growth chambers, and open fields. We also discuss the prospects of promoting Si as a smart fertilizer among farmers and the research community for sustainable agriculture and yield improvement. Literature review and empirical studies have suggested that the application of Si-based fertilizers is expected to increase in the future. With the potential of nanotechnology, new nanoSi (NSi) fertilizer applications may further increase the use and efficiency of Si fertilizers. However, the general awareness and scientific investigation of NSi need to be thoughtfully considered. Thus, we believe this review can provide insight for further research into Si fertilizers as well as promote Si as a smart fertilizer for sustainability and crop improvement.

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Section: Smart Fertilizer Typesmentioning

confidence: 99%

Silicon as a Smart Fertilizer for Sustainability and Crop Improvement

et al. 2022

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“… 61 The third step is related to the polymer cleavage above 400 °C. 61 − 64 The TGA results indicate that the presence of OCT-MMT nanoparticles improves the thermal stability of the polymer matrix. The effect of OCT-MMT is more significant in the last stage of degradation, where polymer cleavage occurs.…”

Section: Resultsmentioning

confidence: 99%

“…Dehydration reactions and the evaporation of volatile components lead to eliminating hydroxyl and amine functional groups of chitosan and PVA degradation . The third step is related to the polymer cleavage above 400 °C. − The TGA results indicate that the presence of OCT-MMT nanoparticles improves the thermal stability of the polymer matrix. The effect of OCT-MMT is more significant in the last stage of degradation, where polymer cleavage occurs.…”

Section: Resultsmentioning

confidence: 99%

Green Electrospun Membranes Based on Chitosan/Amino-Functionalized Nanoclay Composite Fibers for Cationic Dye Removal: Synthesis and Kinetic Studies

et al. 2021

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Chitosan/poly(vinyl alcohol)/amino-functionalized montmorillonite nanocomposite electrospun membranes with enhanced adsorption capacity and thermomechanical properties were fabricated and utilized for the removal of a model cationic dye (Basic Blue 41). Effects of nanofiller concentrations (up to 3.0 wt %) on the morphology and size of the nanofibers as well as the porosity and thermomechanical properties of the nanocomposite membranes are studied. It is shown that the incorporation of the nanoclay particles with ∼10 nm lateral sizes into the polymer increases the size of the pores by about 80%. To demonstrate the efficiency of the adsorbents, the dye removal rate is investigated as a function of pH, adsorbent dosage, dye concentration, and nanofiller loading. The highest and fastest dye removal occurs for the nanofibrous membranes containing 2 wt % nanofiller, where about 80% of the cationic dye is removed after 15 min. This performance is at least 20% better than the pristine chitosan/poly(vinyl alcohol) membrane. The thermal stability and compression resistance of the nanocomposite membranes are found to be higher than those of the pristine membrane. In addition, reusability studies show that the dye removal performance of this nanocomposite membrane reduces by only about 5% over four cycles. The adsorption kinetics is explained by the Langmuir isotherm model and is expressed by a pseudo-second-order kinetic mechanism that determines a spontaneous chemisorption process. The results of this study provide a valuable perspective on the fabrication of high-performance, reusable, and efficient electrospun fibrous nanocomposite adsorbents.

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“…The composite fertilizers are usually made up of organic and inorganic coatings materials (coated granules), hydrophobic matrix material, hydrophilic hydrogel, or inorganic compounds with low solubility (Chen et al, 2018;Treinyte et al, 2018;Zhou et al, 2018;Ramli, 2019;Han et al, 2020).…”

Section: Composite Materials Descriptionmentioning

confidence: 99%

Smart fertilizers: What should we mean and where should we go?

et al. 2021

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Highlights- A smart fertilizer allows to control the rate, timing and duration of nutrients release.- Nanofertilizers are powder or liquid formulations which involve the synthesis, design and use of materials at the nanoscale level.- Composite fertilizers are formulations containing nutrients mixed or coated with one or more materials that exploit synergy among materials.- Bioformulations are fertilizers containing active or dormant microorganisms capable to trigger physiological growth responses in plants.- Limited information is available for smart fertilizers on herbaceous crops in open field conditions. Abstract The current agricultural system faces several challenges, the most important being the ability to feed the increasing world population and mitigate climate change. In this context, the improvement of fertilizers’ agronomic efficiency while reducing their cost and environmental impact is one of the biggest tasks. Available literature shows that many efforts have been made to develop innovative fertilizers defined as "smart fertilizers", for which, different interpretations and definitions have been used. This paper aims to define, classify, and describe the new frontier of the so-called smart fertilizers with a particular focus on field-scale studies on herbaceous species. Most of the analyzed papers associate the "smart" concept to the controlled and/or slow release of nutrients, using both terms as synonymous. Some others broadened the concept, including the controlled release of nutrients to reduce the environmental impact. Based on our critical analysis of the available literature, we conclude that a fertilizer can be considered "smart" whenapplied to the soil, it allows control over the rate, timing, and duration of nutrients release. Our new definition is: ‘Smart fertilizer is any single or composed (sub)nanomaterial, multi-component, and/or bioformulation containing one or more nutrients that, through physical, chemical, and/or biological processes, can adapt the timing of nutrient release to the plant nutrient demand, enhancing the agronomic yields and reducing the environmental impact at sustainable costs when compared to conventional fertilizers’.

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Inorganic matter modified water-based copolymer prepared by chitosan-starch-CMC-Na-PVAL as an environment-friendly coating material

Cited by 17 publications

References 39 publications

Silicon as a Smart Fertilizer for Sustainability and Crop Improvement

Silicon as a Smart Fertilizer for Sustainability and Crop Improvement

Green Electrospun Membranes Based on Chitosan/Amino-Functionalized Nanoclay Composite Fibers for Cationic Dye Removal: Synthesis and Kinetic Studies

Smart fertilizers: What should we mean and where should we go?

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