Ultraviolet-induced polymerization of superabsorbent composites based on sodium humate and its urea release behavior

Liu, Lan; Sawut, Amatjan; Abliz, Shawket; Nurulla, Ismayil; Dolat, Banugul; Yimit, Mamatjan

doi:10.1039/c6ra21911j

Cited by 14 publications

(17 citation statements)

References 44 publications

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“…Compared with U, the relative abundance of Gram-positive bacteria (Actinobacteriaa nd Firmicutes) in the soil samples with U-FS(16 %) decreased, whereas that of Gram-negative bacteria, such as Proteobacteria,A cidobacteria, Bacteroidetes, andN itrospirae, increased to different extents ( Figure 6). [26] Both Ua nd U-FS(16 %) exerted little influence on the cellular viability (Figure 7a and b). Acidobacteriaa re the dominant rhizosphere bacteria able to contributet ot he degradation of plant residues, [23] the iron cycle, [24] and photosynthesis.…”

Section: Field Testmentioning

confidence: 96%

“…Therein, ATP( [(Mg,Al) 4 (Si) 8 26 ]·n H 2 O), at ype of nanoclay formed by nanorods with average dimensions of 800-2000 nm (length) and 30-40 nm (width)] formed an anonetwork under the effect of PAM. Therein, ATP( [(Mg,Al) 4 (Si) 8 26 ]·n H 2 O), at ype of nanoclay formed by nanorods with average dimensions of 800-2000 nm (length) and 30-40 nm (width)] formed an anonetwork under the effect of PAM.…”

Section: Introductionmentioning

confidence: 99%

“…In this work, as odium humate (SH)-ATP-PAM nanocomposite was fabricated and used as an excellent fertilizer synergist (FS). Therein, ATP( [(Mg,Al) 4 (Si) 8 (O,OH,H 2 O) 26 ]·n H 2 O), at ype of nanoclay formed by nanorods with average dimensions of 800-2000 nm (length) and 30-40 nm (width)] formed an anonetwork under the effect of PAM. Then, SH wasa dded to the nanonetwork to form an anocomposite FS.…”

Section: Introductionmentioning

confidence: 99%

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Controlling the Hydrolysis and Loss of Nitrogen Fertilizer (Urea) by using a Nanocomposite Favors Plant Growth

Zhou

Zhao

et al. 2017

ChemSusChem

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Urea tends to be hydrolyzed by urease and then migrate into the environment, which results in a low utilization efficiency and severe environmental contamination. To solve this problem, a network-structured nanocomposite (sodium humate-attapulgite-polyacrylamide) was fabricated and used as an excellent fertilizer synergist (FS) that could effectively inhibit the hydrolysis, reduce the loss, and enhance the utilization efficiency of nitrogen. Additionally, the FS exerted significant positive effects on the expression of several nitrogen-uptake-related genes, ion flux in maize roots, the growth of crops, and the organic matter in soil. The FS could modify the microbial community in the soil and increase the number of bacteria involved in nitrogen metabolism, organic matter degradation, the iron cycle, and photosynthesis. Importantly, this technology displayed a high biosafety and has a great potential to reduce nonpoint agricultural pollution. Therefore, this work provides a promising approach to manage nitrogen and to promote the sustainable development of agriculture and the environment.

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Section: Field Testmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Controlling the Hydrolysis and Loss of Nitrogen Fertilizer (Urea) by using a Nanocomposite Favors Plant Growth

Zhou

Zhao

et al. 2017

ChemSusChem

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“…The effective use of fertilizers is an important factor in the development of agriculture; it can ensure efficiency, a high yield, and high quality in agricultural and sideline products. However, the low utilization efficiency of fertilizers hinders their application in agriculture . In particular, phosphorus is a limiting and indispensable nutrient for the growth of organisms and plants and is an indicator of surface water quality.…”

Section: Introductionmentioning

confidence: 99%

Characterization of slow‐release collagen‐g‐poly(acrylic acid‐co‐2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid)–iron(III) superabsorbent polymer containing fertilizer

Wang

et al. 2018

J of Applied Polymer Sci

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A novel, slow‐release polymer containing phosphorous fertilizer was synthesized by the rapid coordination of iron ions with polymers after the microwave radiation polymerization of collagen, 2‐acrylamido‐2‐methyl‐1‐propanesulfonic acid, and acrylic acid. We obtained an optimized collagen‐g‐poly(acrylic acid‐co‐2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid) collagen‐g‐p(AA‐co‐AMPS)–Fe(III) polymer with great equilibrium swelling capacities of 2595 g/g in distilled water and 121 g/g in 0.9 wt % NaCl solution and an excellent sustained fertilizer release of about 30 days. In addition, for the collagen‐g‐p(AA‐co‐AMPS)–Fe(III) polymer, the effect of cations on its swelling followed the order K+ > Na+ > Mg2+ > Ca2+. The structure and morphology were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy. Moreover, the collagen‐g‐p(AA‐co‐AMPS)–Fe(III) polymers emancipated the nutrients in a more controlled manner than collagen‐g‐p(AA‐co‐AMPS). The thermal stability, water absorbency, and good slow‐release of fertilizer provide the collagen‐g‐p(AA‐co‐AMPS)–Fe(III) polymer with great potential as a fertilizer‐carrying vehicle and an aquasorb to be applied in agriculture and horticulture. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47178.

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“…reported that chitosan‐g‐poly(acrylic acid) (CTS‐PAA)/SH SAR has good biodegradable and eco‐friendly propertiesand Liu et al . reported that superabsorbent composites containing SH could be used to release fertilizer …”

Section: Introductionmentioning

confidence: 99%

Sodium humate modified superabsorbent resin with higher salt‐tolerating and moisture‐resisting capacities

Guan

Yong

Fan

et al. 2018

J of Applied Polymer Sci

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The superabsorbent resin (SAR) containing sodium humate (SH) has been synthesized by free‐radical graft copolymerization with acrylic acid, 2‐acrylamido‐2‐methylpropane sulfonic acid, and SH as monomers in aqueous solution, using N,N′‐methylenebisacrylamide as crosslinking reagent and potassium persulfate as initiator. The structure and morphology of the as‐prepared SARs were fully characterized by Fourier transform infrared , scanning electron microscopy and thermogravimetric analysis, respectively. Meanwhile, the effects of crosslinking reagent, initiator, SH, and neutralization degree on the water absorbency of SAR were studied. The results showed that the adding of SH in the SAR enhanced the salt‐tolerating and moisture‐resisting capacities obviously. The SAR without SH [poly(acrylic acid) (PAA)/2‐acrylamido‐2‐methyl‐1‐propanesulfonic (AMPS)] showed a maximum water absorbency of 600 g g−1 in distilled water and 60 g g−1 in 0.9 wt % NaCl solution, while SAR modified by SH (PAA/AMPS/SH) exhibited the maximum water absorbency of 1380 g g−1 in distilled water and 117 g g−1 in 0.9 wt % NaCl solution. Furthermore, the moisture‐resisting capacity of PAA/AMPS/SH decreases to 8 wt % compared with PAA/AMPS. PAA/AMPS/SH also has better water absorbency in different cation solutions. The results indicated that the introduction of SH could enhance the performance of SAR obviously. The possible reasons with this enhancement were also investigated. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46892.

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Ultraviolet-induced polymerization of superabsorbent composites based on sodium humate and its urea release behavior

Abstract: This study was carried out to develop a superabsorbent composite for agriculture application, which is based on acrylic acid and sodium humate and prepared by ultraviolet-induced polymerization in the presence of crosslinker and composite initiator.

Cited by 14 publications

References 44 publications

Controlling the Hydrolysis and Loss of Nitrogen Fertilizer (Urea) by using a Nanocomposite Favors Plant Growth

Controlling the Hydrolysis and Loss of Nitrogen Fertilizer (Urea) by using a Nanocomposite Favors Plant Growth

Characterization of slow‐release collagen‐g‐poly(acrylic acid‐co‐2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid)–iron(III) superabsorbent polymer containing fertilizer

Sodium humate modified superabsorbent resin with higher salt‐tolerating and moisture‐resisting capacities

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