Synthesis and characterization of a novel (salep phosphate)-based hydrogel as a carrier matrix for fertilizer release

Pourjavadi, Ali; Doulabi, Malihe; Soleyman, Rouhollah; Sharif, Sepideh; Eghtesadi, Seyed Ali

doi:10.1016/j.reactfunctpolym.2012.06.010

Cited by 43 publications

(22 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In distilled water, the fertilizer‐release behaviors of collagen‐ g ‐p(AA‐ co ‐AMPS)–Fe(III) with different concentrations of iron ions and soaking times were studied and are presented in Figure (a,b), respectively. The determination of the phosphate content in the samples was done by a standard spectrophotometric method . The completion of phosphorus fertilizers from collagen‐ g ‐p(AA‐ co ‐AMPS) was released within 24 h; this was in accordance with previous research .…”

Section: Resultssupporting

confidence: 75%

“…The release of compounds from polymers involve several processes: the penetration of the release medium into the polymeric network, the dissolution of the dispersed fertilizers, and the release of compounds from the polymer under swelling conditions . When there is no concentration difference between the matrix's internal space and the aqueous solution, the active substance is no longer released.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

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

View full text Add to dashboard Cite

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.

show abstract

Section: Resultssupporting

confidence: 75%

Section: Resultsmentioning

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

View full text Add to dashboard Cite

show abstract

“…[21] Salep-based hydrogels, for the first time, were developed in 2008 by our research group. [22][23][24][25] Salep [26,27] is a multicomponent polysaccharide obtained from dried tubers of certain natural terrestrial orchids and can be referred as a good source of glucomannan (16-60%). In the present work, optimized synthesis of salep-g-poly(AAm-co-HEMA) as a novel biopolymer-based metal chelating hydrogel was carried out with a systematic method, and its application for removing Cu (II), Pb (II), Cd (II), and Cr (III) ions from aqueous solution was investigated.…”

Section: +mentioning

confidence: 99%

“…Such behaviors have been reported by us and other investigators. [22][23][24][25] Surface morphology of the hydrogel…”

Section: Effect Of Initiator Concentrationmentioning

confidence: 99%

Novel salep-based chelating hydrogel for heavy metal removal from aqueous solutions

Soleyman

Pourjavadi

Monfared

et al. 2016

Polym. Adv. Technol.

Self Cite

View full text Add to dashboard Cite

A novel optimized chelating hydrogel was synthesized via graft copolymerization of acrylamide and 2-hydroxyethyl methacrylate (as two-dentate chelating co-monomer) onto salep (a multicomponent polysaccharide obtained from dried tubers of certain natural terrestrial orchids) using N,N′-methylenebisacrylamide as a crosslinker and ammonium persulfate as an initiator. Reaction parameters (N,N′-methylenebisacrylamide and ammonium persulfate amounts as well as acrylamide/2-hydroxyethyl methacrylate weight ratio) affecting the water absorption of the chelating hydrogel were optimized using a systematic method to achieve a hydrogel with high swelling capacity as possible. Heavy metal ion adsorption capacity of the optimized hydrogel for metal ions [Cu (II), Pb (II), Cd (II), and Cr (III)] were investigated in aqueous media containing different concentrations of these ions (5-50 ppm). The results showed that the hydrogel have great potential for heavy metal removal from aqueous solutions. The hydrogel formation was confirmed by Fourier transform infrared spectroscopy, and surface morphology study of the hydrogel was performed by scanning electron microscope.

show abstract

“…[1,2] Controlled-release technology emerged to overcome these shortcomings. Depending on the method of application and climate conditions, as much as 90% of the applied agrochemicals cannot reach the target plant, resulting in the undesirable biologic responses, periodic applications, rising costs, and environmental hazards.…”

Section: Introductionmentioning

confidence: 99%

Superabsorbent nanocomposite based on maize bran with integration of water‐retaining and slow‐release NPK fertilizer

et al. 2017

View full text Add to dashboard Cite

A novel fertilizer-integrated superabsorbent nanocomposite based on maize bran (MB), acrylic acid (AA), and acrylamide (AAm) was synthesized in an aqueous solution containing montmorillonite (MMT) and NPK fertilizer compound. FTIR spectra indicated that hydroxyl group of the starch molecules in MB composition has participated in grafting reaction with acrylate-based monomers. The swelling behavior of the synthesized hydrogels in different salt and pH solutions was evaluated. Also, the N,N′-methylenebisacrylamide (MBA) and MMT contents were systematically optimized to obtain a highest swelling capacity. Fertilizer release assessments on the NPK-loaded superabsorbent nanocomposite confirmed the effective role of MMT nanolayers in slow-release property of the prepared formulation. Also, the prepared fertilizer formulation exhibited good water retention capacity in soil. As a result, this eco-friendly and economical product can effectively reduce fertilizer loss, improve water utilization efficiency, and prolong irrigation cycles which are benefit for agricultural applications, especially in drought-prone environments. K E Y W O R D Shydrogels, maize bran, nanocomposites, slow-release fertilizer formulation, swelling | 1683 OLAD et AL.How to cite this article: Olad A, Gharekhani H, Mirmohseni A, Bybordi A. Superabsorbent nanocomposite based on maize bran with integration of water-retaining and slow-release NPK fertilizer. Adv

show abstract

Synthesis and characterization of a novel (salep phosphate)-based hydrogel as a carrier matrix for fertilizer release

Cited by 43 publications

References 29 publications

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

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

Novel salep-based chelating hydrogel for heavy metal removal from aqueous solutions

Superabsorbent nanocomposite based on maize bran with integration of water‐retaining and slow‐release NPK fertilizer

Contact Info

Product

Resources

About