Biomass based hydrogel as an adsorbent for the fast removal of heavy metal ions from aqueous solutions

Zhang, Mingyue; Lee, Song; Jiang, Haifeng; Shu, Li; Shao, Yifei; Yang, Jiaqi; Li, Junfeng

doi:10.1039/c6ta10513k

Cited by 170 publications

(47 citation statements)

References 52 publications

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“…Many heavy metals have been removed by the application of plant-based materials. Recently, M. Zhang et al 2017 removed heavy metal ions namely Zn(II), Fe(III), Cu(II), and Cr(III) from water using waste biomass of soybean dregs [52]. Lingamdinne et al 2016 utilized the biomass-based material of the Lonicera japonica flower for the removal of Pb 2+ , Co 2+ , Ni 2+ , and Cu 2+ [53,54].…”

Section: Discussionmentioning

confidence: 99%

Greener Method for the Removal of Toxic Metal Ions from the Wastewater by Application of Agricultural Waste as an Adsorbent

Shaikh

Saifullah

Rehman

et al. 2018

Water

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The presence of inorganic pollutants such as metal ions (Ni2+, Pb2+, Cr6+) in water, probably by long-term geochemical changes and from the effluents of various industries, causes diseases and disorders (e.g., cancer, neurodegenerative diseases, muscular dystrophy, hepatitis, and multiple sclerosis). Conventional methods for their removal are limited by technical and economic barriers. In biosorption, low-cost and efficient biomaterials are used for this purpose. In this study, Brassica Campestris stems from the agriculture waste and has been used for the removal of Ni2+, Cr6+ and Pb2+ ions from an aqueous solution containing all the ions. Effect of different parameters, e.g., pH, contact time, metal ion initial concentration, adsorbent dose, agitation rate and temperature were analyzed and optimized. The adsorbent worked well for removal of the Pb2+ and Cr6+ as compared to Ni2+. The atomic absorption spectrophotometer (AAS) and FTIR investigation of adsorbent before and after shows a clear difference in the adsorbent capability. The highest adsorption percentage was found at 98%, 91%, and 49% respectively, under the optimized parameters. Furthermore, the Langmuir isotherm was found better in fitting to the experimental data than that of the Freundlich isotherm.

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Section: Discussionmentioning

confidence: 99%

Greener Method for the Removal of Toxic Metal Ions from the Wastewater by Application of Agricultural Waste as an Adsorbent

Shaikh

Saifullah

Rehman

et al. 2018

Water

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“…The adsorption behaviors of AFH can by described by the Langmuir and Freundlich isotherm models (Zhang et al, 2017). The Langmuir isotherm model can be represented by Equations (5) and 6:…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Ion-Induced Synthesis of Alginate Fibroid Hydrogel for Heavy Metal Ions Removal

Kong

Zhao

et al. 2020

Front. Chem.

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Design and synthesis of environmentally friendly adsorbents with high adsorption capacities are urgently needed to control pollution of water resources. In this work, a calcium ion-induced approach was used to synthesize sodium alginate fibroid hydrogel (AFH). The as-prepared AFH has certain mechanical strength, and the mechanical strength is enhanced especially after the adsorption of heavy metal ions, which is very convenient for the recovery. AFH exhibited excellent adsorption performances for Cu 2+ , Cd 2+ , and Pb 2+ ions and displayed very high saturated adsorption capacities (Qe) of 315.92 mg•g −1 (Cu 2+), 232.35 mg•g −1 (Cd 2+), and 465.22 mg•g −1 (Pb 2+) with optimized pH values (3.0-4.0) and temperature (303 K). The study of isotherms and kinetics indicated that adsorption processes of heavy metal ions fitted well with the pseudo-second-order kinetics model and the Langmuir model. Pb 2+ was found to have the strongest competitiveness among the three heavy metal ions. Thus, AFH has great application prospects in the field of heavy metal ions removing from wastewater.

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“…Reaksi gugus karboksilat (-COOH) dengan ion logam Cu (II) ditunjukkan pada bilangan gelombang 1587,45 cm -1 [30] dan 1442,75, Puncak ini dikaitkan dengan (C=O) peregangan kelompok fungsional karboksamida [31]. Kemudian gugus hidroksil (O-H) dan amida (N-H) , berdasarkan hasil karakterisasi FTIR, gugus tersebut ditunjukkan pada pita 3653,18 cm -1 sesuai dengan gugus O-H overlapping dengan N-H [32].…”

Section: Gambar 3spektrum Ftir Hsaunclassified

Absorban Ion Logam Cu (Ii) Berbasis Hidrogel Superabsorban CMC - G - Pka/Naalg Dengan Teknik Iradiasi Sinar Gamma

Putro¹,

Sulaeman²,

Erizal³

et al. 2018

Prosiding Seminar Nasional Fisika (E-Journal) Snf2018 Unj

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Hidrogel Superabsorban (HSA) CMC-g-PKA/NaAlg telah disintesis menggunakan iradiasi sinar gamma sebagai crosslinker dengan dosis 10 kGy. HSA disintesis dengan variasi massa CMC, yaitu 1,0 g, 1,5 g, 2,0 g, dan 2,5 g. Kemampuan HSA dalam menyerap ion logam Cu (II) telah dipelajari menggunakan spektrofotometer UV-Vis. Pengujian dilakukan dengan variasi konsentrasi ion logam Cu (II) yaitu, 1%, 2%, 3%, 4%, dan 5% selama 30 menit. Nilai absorbansi pada ion logam Cu (II) meningkat seiring dengan peningkatan massa CMC. Nilai absorbansi terbesar, yaitu 74% pada massa CMC 2,5 g. Pengujian FTIR mencirikan adanya interaksi antara gugus (OH) hidroksil, (NH 2) amina, dan karboksilat (COOH), terhadap ion logam Cu (II) pada bilangan gelombang 3653,18 1/cm, 1442,75 1/cm, dan 1587,42 1/cm.

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Biomass based hydrogel as an adsorbent for the fast removal of heavy metal ions from aqueous solutions

Abstract: In order to achieve the reutilization of waste biomass soybean dregs, a low-cost hydrogel, soybean dregs–poly(acrylic acid) (SESD–PAA) was prepared through a one-step reaction.

Cited by 170 publications

References 52 publications

Greener Method for the Removal of Toxic Metal Ions from the Wastewater by Application of Agricultural Waste as an Adsorbent

Greener Method for the Removal of Toxic Metal Ions from the Wastewater by Application of Agricultural Waste as an Adsorbent

Ion-Induced Synthesis of Alginate Fibroid Hydrogel for Heavy Metal Ions Removal

Absorban Ion Logam Cu (Ii) Berbasis Hidrogel Superabsorban CMC - G - Pka/Naalg Dengan Teknik Iradiasi Sinar Gamma

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