Borax cross-linked guar gum hydrogels as potential adsorbents for water purification

Thombare, Nandkishore; Jha, Usha; Mishra, Sumit; Siddiqui, Mahtab Z.

doi:10.1016/j.carbpol.2017.03.086

Cited by 126 publications

(83 citation statements)

References 27 publications

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“…Guar gum is now being considered as one of the most promising potential candidate to explore better outcomes in possible adsorption techniques and can act as preferred choice for different areas of research interests. Reprinted with permission from [67]. Copyright 2017 Elsevier.…”

Section: Discussionmentioning

confidence: 99%

“…One of the possible mechanisms followed in water purification is adsorption. For this, numbers of fillers and chemical modifications have been investigated to achieve required application in water remediation program [64], [65], [66], [67], [68], [69], [70], [71], [72]. Table 1 shows (Figure 2a).…”

Section: Guar Gum Based Hydrogels For Water Purificationmentioning

confidence: 99%

“…Thombare et al developed hydrogel of guar gum cross linked with borax (GG-cl-B) at different concentrations [67]. The developed hydrogel was applied for the adsorption of aniline blue (AB) dye from water.…”

Section: Guar Gum Based Hydrogels For Water Purificationmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Recent approaches in guar gum hydrogel synthesis for water purification

Thakur

Sharma

Verma

et al. 2018

International Journal of Polymer Analysis and Characterization

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Guar gum based hydrogels have evoked great attention in research as well as in industry for exploring miscellaneous applications in the field of water purification, medicine, agriculture, explosives, cosmetics, textile, paper and food to name a few. In this article, latest modifications for developing guar gum based hydrogels and composite materials for water purification application are extensively reviewed. Regenerative nature of Guar gum hydrogels makes it a better choice for treating waste water as well as other value added applications. Moreover, non-ionic nature makes guar gum an acceptable material for further modifications. In this article, we also presents brief discussion on structure and properties of guar gum.

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Section: Discussionmentioning

confidence: 99%

Section: Guar Gum Based Hydrogels For Water Purificationmentioning

confidence: 99%

Section: Guar Gum Based Hydrogels For Water Purificationmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Recent approaches in guar gum hydrogel synthesis for water purification

Thakur

Sharma

Verma

et al. 2018

International Journal of Polymer Analysis and Characterization

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“…This strategy has the following strength: a) All of the raw materials are commercially available at cheap price, rather than the phenylboronic acid group‐functionalized materials prepared by complicated synthetic methods in previous works; b) the shape fixity ratios and efficiency can be continuously adjusted by exposing to aqueous borax solutions of different concentrations. Large density of temporary borate ester bond crosslinks can be easily produced by treating the hydrogels in high‐concentration borax solutions, which is favorable for high shape memory fixity; c) because of the multiresponsive nature of the boronate ester bonds, the shape recovery process of our hydrogel could be triggered by diverse stimuli such as acid, monosaccharides, leading to multiresponsive SSMH system.…”

Section: Introductionmentioning

confidence: 99%

An “Off‐the‐Shelf” Shape Memory Hydrogel Based on the Dynamic Borax‐Diol Ester Bonds

Zhang

Lü

et al. 2018

Macro Materials & Eng

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An “off‐the‐shelf” hydrogel with high‐efficiency shape memory property is designed on the basis of the dynamic borax‐diol chemistry. The system is facilely prepared from only several unmodified commercially available components: acrylamide (AAm), bis‐acrylamide (Bis), poly(vinyl alcohol) (PVA), and borax. The chemically crosslinked poly(acrylamide) network works to fix the permanent shapes of the hydrogel, while the dynamic PVA–borax boronate ester bonds serve as the reversible crosslinks to memorize the deformed temporary shapes. Retreatment of the hydrogel in acid/glucose solutions dissipates the PVA–borax ester bonds to recover its permanent shape. Because of the highly invertible nature of borax‐diol chemistry, the developed hydrogel system is characterized by high shape memory/recovery ratios, continuously adjusted shape memory/recovery rates, thus having a wealth of potential applications.

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Hydrogels

Ray

2022

Kirk-Othmer Encyclopedia of Chemical Technology

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Hydrogels are prepared by physical or chemical cross‐linking of water‐soluble polymers. Natural, semisynthetic, and synthetic polymers may be cross‐linked physically or by a cross‐linker to produce the network structure of a hydrogel. Because of cross‐linking these polymers are not soluble in water. However, hydrogels can absorb huge amount of water, resulting in significant swelling of their three‐dimensional network structure. The swelling of a responsive and smart hydrogel strongly depends on external stimuli such as pH, temperature, salt concentration, light, and magnetic and electric fields. Hydrogels are widely reported for various applications. In fact, in recent years the research on hydrogel has been found to increase at an exponential rate, with around 8000 publications in 2021. In this article, the origin, history, theoretical modeling, synthesis, properties, classifications, characterization, and new applications of hydrogels have been discussed in detail with the citation of references till 2021.

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Borax cross-linked guar gum hydrogels as potential adsorbents for water purification

Cited by 126 publications

References 27 publications

Recent approaches in guar gum hydrogel synthesis for water purification

Recent approaches in guar gum hydrogel synthesis for water purification

An “Off‐the‐Shelf” Shape Memory Hydrogel Based on the Dynamic Borax‐Diol Ester Bonds

Hydrogels

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