Preparation and application of thiol wheat straw as sorbent for removing mercury ion from aqueous solution

Gong, Renmin; Cai, Wentao; Li, Na; Chen, Jian; Liang, Jingjing; Cao, Jin-Xiu

doi:10.5004/dwt.2010.1574

Cited by 13 publications

(5 citation statements)

References 28 publications

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“…Modified rice husk [24], soda lignin [25], shells (walnut, hazelnut and almond) [26], and rubber leaf powder [27] have been reported as low-cost adsorbents for removal of Cu(II) from wastewater. Removal of Hg(II) and Cr(VI) using wheat straw [28] and wool [29], respectively, have also been reported.…”

Section: Introductionmentioning

confidence: 94%

Adsorption study of lead(II) onto xanthated date palm trunk: kinetics, isotherm and mechanism

Yadav¹,

Singh²,

Sinha³

2013

Desalination and Water Treatment

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A B S T R A C TThe adsorption of lead(II) onto xanthated date palm trunk (XDPT) from aqueous solutions was studied in a batch adsorption system. Factors influencing lead(II) adsorption such as initial Pb(II) concentration (25.8-207.0 mg/l), pH (1-6), contact time (5-240 min), and adsorbent dosage (0.625-6.0 g/l) were investigated. The adsorption process was relatively fast and equilibrium was established within 120 min. Maximum adsorption of Pb(II) occurred at pH $ 5. A comparison of the kinetic models on the overall adsorption rate showed that the adsorption system can be best described by the pseudo-second-order kinetics. The adsorption equilibrium data obeyed Langmuir isotherm and the monolayer adsorption capacity of Pb(II) was found to be 53.48 mg/g. The adsorption mechanism has been suggested to be due to the complexation of lead(II) ions with sulfur donors present in XDPT.

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Section: Introductionmentioning

confidence: 94%

Adsorption study of lead(II) onto xanthated date palm trunk: kinetics, isotherm and mechanism

Yadav¹,

Singh²,

Sinha³

2013

Desalination and Water Treatment

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“…Diverse types of cellulose‐based biomass such as wood sawdust, buckwheat hull, [101] spent grain (SG), [102] wheat straw [103] and beet pulp [104] have been thiolated by esterification with thioglycolic acid to fabricate biosorbents for metals removal. However, in this section, we mainly discuss derivatives obtained directly from pure forms of cellulose including cotton, cellulose powder, and cellulose nanofiber.…”

Section: Thiolated Cellulosesmentioning

confidence: 99%

Thiomers of Chitosan and Cellulose: Effective Biosorbents for Detection, Removal and Recovery of Metal Ions from Aqueous Medium

Seidi

Saeb

Huang

et al. 2021

The Chemical Record

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Removal of toxic metal ions using adsorbents is a well‐known strategy for water treatment. While chitosan and cellulose can adsorb weakly some types of metals, incorporating thiols as metal chelating agents can improve their sorption behaviors significantly. Presented in this review are the various chemical modification strategies applicable for thiolation of chitosan and cellulose in the forms of mercaptans, xanthates and dithiocarbamates. Moreover, much attention has been paid to the specific strategies for controlling the thiolation degree and characterization approaches for establishing the structure‐property relationship. Also, the kinetics and isotherm models that elucidate the adsorption processes and mechanisms induced by the thiomers have been explained. These thiomers have found great potentials in the applications associated with metal removal, metal recovery and metal detection.

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“…So, an extremely low concentration of Pb(II) in water is highly toxic and noxious [6]. Various methods have been used to treat and remove heavy metals from water and wastewater sources; including, ion exchange, reverse osmosis, chemical precipitation, electrodialysis, electrolysis and membrane filtration [7][8][9][10]. The used methods have disadvantages, for instance, time consuming, high cost, and secondary waste [11].…”

Section: Introductionmentioning

confidence: 99%

NiFe2O4 coated sand as a nano-adsorbent for removal of Pb (II) from aqueous solutions

Asl

Mohseni‐Shahri

Moeinpour

2019

Eurasian Chem. Commun.

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In this study, NiFe2O4 magnetic nanoparticles as an adsorbent for lead (Pb) removal were coated on sand particles. Adsorption studies were conducted to investigate the efficacy of contact time, pH, adsorbent dosage and initial lead ion concentration on the removal efficiency. To choose the most fitting kinetic model, the pseudo-first order and pseudo-second order models were compared and the most suitable kinetic model was selected by the pseudo-second order. Langmuir and Freundlich isotherms were evaluated and the most suitable isotherm was observed as the Freundlich model. In addition, the NiFe2O4 coated sand can simply be removed by an ordinary filtration process.

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Preparation and application of thiol wheat straw as sorbent for removing mercury ion from aqueous solution

Cited by 13 publications

References 28 publications

Adsorption study of lead(II) onto xanthated date palm trunk: kinetics, isotherm and mechanism

Adsorption study of lead(II) onto xanthated date palm trunk: kinetics, isotherm and mechanism

Thiomers of Chitosan and Cellulose: Effective Biosorbents for Detection, Removal and Recovery of Metal Ions from Aqueous Medium

NiFe2O4 coated sand as a nano-adsorbent for removal of Pb (II) from aqueous solutions

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