Carboxy-methyl tamarind kernel gum based bio-hydrogel for sustainable agronomy

Malik, Ritu; Warkar, Sudhir G.; Saxena, Reena

doi:10.1016/j.mtcomm.2023.105473

Cited by 10 publications

(6 citation statements)

References 43 publications

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“…The synthesis of CMTKG/PSMA hydrogel is reported earlier [35] . Initially, fixed amount of CMTKG was dissolved in 10 mL distilled water and stirred continuously at 600 rpm until complete solubilization.…”

Section: Methodsmentioning

confidence: 99%

“…The synthesis of CMTKG/PSMA hydrogel is reported earlier. [35] Initially, fixed amount of CMTKG was dissolved in 10 mL distilled water and stirred continuously at 600 rpm until complete solubilization. Then, fixed volume of methacrylic acid was added to 5 mL of sodium hydroxide and the resulting solution was mixed with the reaction mixture containing CMTKG.…”

Section: Methodsmentioning

confidence: 99%

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Removal of Cationic Crystal Violet dye using Zeolite‐ Embedded Carboxymethyl Tamarind Kernel Gum (CMTKG) based Hydrogel Adsorbents

2023

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In this research paper, various formulations of zeolite‐loaded carboxymethyl tamarind kernel gum (CMTKG) based hydrogels were synthesized and utilized as a potential adsorbent for the removal of crystal violet (CV) dye. The swelling capacity of all the synthesized hydrogels was investigated and the composition of hydrogel which exhibited maximum swelling was used for the characterization and dye removal experiment. The CV dye was chosen as a model dye for the dye removal experiment. The structure of zeolite and zeolite embedded hydrogel was elucidated by XRD, FTIR, FE‐SEM, EDX and elemental papping techniques. The adsorption experiment was investigated by varying the CV concentration, amount of hydrogel adsorbent, temperature, pH of the dye solution, adsorption time, and ionic strength. The Langmuir and Freundlich isotherm models were used to fit the adsorption data and it was observed that the data fitted well with the Langmuir model. Moreover, hydrogel‘s maximum dye adsorption efficiency was found at 123.60 mg g−1. The adsorption kinetic studies were followed by pseudo‐ first‐order and intraparticle diffusion kinetic models. In addition, regeneration studies were performed for the best adsorbent hydrogel using ethanol solvent and the result concluded the desorption efficiency of hydrogel (82 %) over four desorption cycles.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Removal of Cationic Crystal Violet dye using Zeolite‐ Embedded Carboxymethyl Tamarind Kernel Gum (CMTKG) based Hydrogel Adsorbents

2023

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“…TKG/PSA hydrogels were formed by a free radical chain mechanism . [25] Here, sulfate radicals are produced by the decomposition of free radical initiator KPS. The generated radicals developed a chain by the removal of the hydrogen atom of the À OH group present in the TKG polymer and reacted with the vinyl bond present in the N, N ' -MBA cross-linker.…”

Section: Mechanism Of Synthesis Of Dox-embedded Tkg/psa Hydrogelmentioning

confidence: 99%

A Silver Nanoparticle‐Embedded Tamarind Kernel Gum/Poly (Sodium Acrylate) Nanocomposite for Sustainable Release of Doxycycline

Rani,

Warkar,

Kumar

2024

ChemistrySelect

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The current work describes an eco‐friendly novel synthesis of silver (Ag) nanoparticles (NPs)/Tamarind kernel gum (TKG)/Poly (sodium acrylate) (PSA) nanocomposite without the use of any toxic materials. It is a one‐step route synthesis of silver nanocomposite hydrogel in which TKG and PSA are cross‐linked using methylene bisacrylamide (MBA) cross‐linker. The developed hydrogels were characterized using XRD, FTIR, UV‐visible, FE‐SEM, and TEM techniques. Doxycycline (dox) was chosen as a model drug for release studies using TKG/PSA and Ag/TKG/PSA nanocomposite. The observation is that Ag NP/TKG/PSA nanocomposite showed a pH‐dependent swelling which is higher at pH 7.4 than at pH 1.2. Similarly, the cumulative drug release percentage (CDR %) using silver nanocomposite is higher at pH 7.4 than at pH 1.2. Also, the presence of Ag NPs decreased the swelling ratio (SR) of TKG/PSA hydrogel, which controls the rate of release of the dox drug. In addition, the dox release kinetics were studied using the Korsmeyer‐Peppas and Higuchi model. It has been found that drug release data was fitted in the Korsmeyer‐Peppas model with a higher value of regression coefficient (R2). Thus, Ag/TKG/PSA nanocomposite showed satisfactory results for sustainable release of doxycycline drug.

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“…SEM is a common and powerful technique that provides valuable information about sample surface morphology, microstructural features and elemental composition (Bo et al, 2012;Li et al, 2020;Huang et al, 2021;Sarkar et al, 2023). Although SEM has been widely used to investigate SAPs and (micro)plastics in environmental research (Bo et al, 2012;Buchmann and Schaumann, 2017;Brax et al, 2019;Malik et al, 2023), it involves several limitations. These include altering structures during sample preparation and the restrictions of in situ measurements.…”

Section: Techniques To Assess Saps and Their Transformationmentioning

confidence: 99%

Superabsorbent polymers in soil: The new microplastics?

Buchmann,

Neff,

Meyer

et al. 2024

Camb. prisms Plast.

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The extensive use of synthetic polymers in our everyday lives has resulted in significant plastic pollution. Superabsorbent polymers (SAPs) are yet another class of anthropogenic materials with uncertain environmental implications. SAPs, like polyacrylates (PAA) or polyacrylamides (PAM), find applications in personal care products, construction, wastewater treatment, agriculture and soil remediation. However, when SAPs enter the soil, weathering may change their intended properties, potentially forming plastic-like solid residues over time. This review aims to evaluate the current scientific understanding of the application and environmental fate of SAPs in soil, focusing on the processes driving their potential transformation into solid residues. We explore analytical techniques for the qualitative and quantitative characterization of SAPs and solid SAP residues. Our research provides first insights into the potential mechanisms and conditions governing SAP aging and transformation, advancing our understanding of the fate of SAPs in soil and their impact on soil properties and functioning. There are specific knowledge gaps regarding the influence of climate change on the application and transformation of SAPs in soil. To facilitate future research, we suggest scrutinizing relevant processes of SAP transformation in the field, critically (re)evaluating SAP application to the soil and establishing robust monitoring methods.

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Carboxy-methyl tamarind kernel gum based bio-hydrogel for sustainable agronomy

Cited by 10 publications

References 43 publications

Removal of Cationic Crystal Violet dye using Zeolite‐ Embedded Carboxymethyl Tamarind Kernel Gum (CMTKG) based Hydrogel Adsorbents

Removal of Cationic Crystal Violet dye using Zeolite‐ Embedded Carboxymethyl Tamarind Kernel Gum (CMTKG) based Hydrogel Adsorbents

A Silver Nanoparticle‐Embedded Tamarind Kernel Gum/Poly (Sodium Acrylate) Nanocomposite for Sustainable Release of Doxycycline

Superabsorbent polymers in soil: The new microplastics?

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