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Natural polymers-humic acid and lignin based hydrogels: In agriculture, environment and energy storage

Biopolymer GelHydrogelsChemical EngineeringEngineeringNatural PolymerEnvironmental EngineeringNatural Polymers-humic AcidSustainable PolymerBio-based MaterialEnergy StoragePolymer ChemistrySustainable Polymers