DOE-based synthesis of gellan gum-acrylic acid-based biodegradable hydrogels: screening of significant process variables and <i>in situ</i> field studies

Choudhary, Sonal; Sharma, Kashma; Bhatti, Manpreet S.; Sharma, Vishal; Kumar, Vijay

doi:10.1039/d1ra08786j

Cited by 20 publications

(14 citation statements)

References 75 publications

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“…The spectral peaks for the GG and acrylic acid grafted GG-cl-poly(AA) hydrogels were addressed in earlier findings. 17 After the adsorption of MG/MB onto the GG-clpoly(AA) hydrogel, the peaks shifted toward a higher 2θ angle i.e. 2θ = 20.06°and 2θ = 20.14°, which might be due to the diffusion of dye molecules.…”

Section: The Influence Of Ionic Concentrationmentioning

confidence: 95%

“…The GG-cl-poly(AA) hydrogel was synthesized using a previously described method. 17 The synthesized hydrogel was then dehydrated overnight in a hot oven at 60 °C and was further utilized for the adsorption studies. The dye adsorption onto the adsorbent surface was monitored by visible spectroscopy as a function of time, up to 120 min.…”

Section: Process Of Synthesis and Adsorptionmentioning

confidence: 99%

“…The GG-cl-poly(AA) hydrogel was synthesized using a previously described method . The synthesized hydrogel was then dehydrated overnight in a hot oven at 60 °C and was further utilized for the adsorption studies.…”

Section: Experimental Workmentioning

confidence: 99%

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Performance Evaluation of Gum Gellan-Based Hydrogel as a Novel Adsorbent for the Removal of Cationic Dyes: Linear Regression Models

Choudhary

Sharma²,

Sharma

et al. 2023

ACS Appl. Mater. Interfaces

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In this work, the suitability and efficacy of the previously reported biodegradable gellan gum (GG)-based hydrogel have been thoroughly investigated with respect to the adsorption mechanisms of malachite green (MG) and methylene blue (MB) dyes. The dyes' removal from aqueous solutions using GG-clpoly(AA) as an adsorbent material has been studied in a discontinuous system with respect to contact time, dose, pH, and temperature. The synthesized hydrogel was characterized by FT-IR, TGA, XRD, 1 H NMR, and FE-SEM. The adsorption capacity of GG-cl-poly(AA) hydrogel was investigated at different pH solutions (3, 7, and 10), and it was found that neutralized charge plays a crucial role in the enhancement of dye removal. To better understand the behavior of the GG-cl-poly(AA) hydrogel in adsorbing model dyes, adsorption kinetics, isotherms, and thermodynamics were also investigated. The values of qmax for MG and MB were obtained to be 552.48 and 531.9 mg g −1 . In addition, the influence of NaCl concentration on adsorption efficiency was investigated, and it was found that as the ion concentration increased, the effectiveness of the adsorption process dropped. Moreover, the synthesized hydrogel's potential application in the adsorption and separation of dyes from wastewater is enhanced by the reusability investigations conducted in convenient conditions. As a result, it is possible to conclude that reusing GG-cl-poly(AA) hydrogel as a low-cost, easy-to-handle, nontoxic material in an industrial wastewater treatment plant's adsorption process can provide a number of advantages, including high efficiency for MG and MB removal and cost savings on overall treatment plant operations.

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Section: The Influence Of Ionic Concentrationmentioning

confidence: 95%

Section: Process Of Synthesis and Adsorptionmentioning

confidence: 99%

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Performance Evaluation of Gum Gellan-Based Hydrogel as a Novel Adsorbent for the Removal of Cationic Dyes: Linear Regression Models

Choudhary

Sharma²,

Sharma

et al. 2023

ACS Appl. Mater. Interfaces

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“…For SAPs prepared in [ 106 ], a square root dependence of boron release on time was found, while for SAPs studied in [ 107 ], the time required to release 50% of boron (t50) from the boron-loaded SAP was estimated as 96 days, which is almost triple as compared to commercial B fertilizer, boronated single super phosphate (33 days). Gellan gum-containing polyacrylic acid hydrogels significantly improved the moisture properties of plant growth media (clay, sandy, and clay-soil combination), implying that it has great potential in moisture stress agriculture [ 108 ]. In [ 109 ], a hydrogel was synthesized by grafting Guar gum with methyl methacrylate and crosslinking with polyethylene glycol.…”

Section: Superabsorbent Polymer Hydrogelsmentioning

confidence: 99%

Agricultural Applications of Superabsorbent Polymer Hydrogels

Краснопеева

Панова

Yakimansky

2022

IJMS

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This review presents data from the past five years on the use of polymeric superabsorbent hydrogels in agriculture as water and nutrient storage and retention materials, as well as additives that improve soil properties. The use of synthetic and natural polymeric hydrogels for these purposes is considered. Although natural polymers, such as various polysaccharides, have undoubted advantages related to their biocompatibility, biodegradability, and low cost, they are inferior to synthetic polymers in terms of water absorption and water retention properties. In this regard, the most promising are semi-synthetic polymeric superabsorbents based on natural polymers modified with additives or grafted chains of synthetic polymers, which can combine the advantages of natural and synthetic polymeric hydrogels without their disadvantages. Such semi-synthetic polymers are of great interest for agricultural applications, especially in dry regions, also because they can be used to create systems for the slow release of nutrients into the soil, which are necessary to increase crop yields using environmentally friendly technologies.

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“…The DoE technique has been used extensively in several fields, such as chemistry, 24–29 agriculture, 30,31 engineering, 32,33 industry 34,35 (in particular food industry 36–38 ), and even in non-scientific aspects, such as predicting sports results, 39 especially soccer and basketball. DoE can be used in other disciplines, such as energy 40–44 and sensors optimization.…”

Section: Introductionmentioning

confidence: 99%

Experimentally designed chemometric models for the assay of toxic adulterants in turmeric powder

et al. 2022

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DOE-based synthesis of gellan gum-acrylic acid-based biodegradable hydrogels: screening of significant process variables and in situ field studies

Abstract: We use free radical graft copolymerization of acrylic acid as a monomer, N,N-methylene-bis-(acrylamide) as a crosslinker and ammonium persulfate as an initiator to synthesise GG-cl-poly(AA) hydrogels based on gellan gum utilising response surface methodology.

Cited by 20 publications

References 75 publications

Performance Evaluation of Gum Gellan-Based Hydrogel as a Novel Adsorbent for the Removal of Cationic Dyes: Linear Regression Models

Performance Evaluation of Gum Gellan-Based Hydrogel as a Novel Adsorbent for the Removal of Cationic Dyes: Linear Regression Models

Agricultural Applications of Superabsorbent Polymer Hydrogels

Experimentally designed chemometric models for the assay of toxic adulterants in turmeric powder

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