Preparation of amine group-containing chelating fiber for thorough removal of mercury ions

Ma, Nianfang; Yang, Ying; Chen, Shuixia; Zhang, Qikun

doi:10.1016/j.jhazmat.2009.06.001

Cited by 63 publications

(27 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The experimental adsorption capacities, calculated by Langmuir equations basing on the experimental isotherms presented in Figure 8, are 769.2, 833.3, and 917.4 mg/g, respectively. And those of theoretical values were calculated according to the nitrogen content by elemental analysis (EA), basing on two amine chelating with one mercury ion 31. And element analysis shows the nitrogen percentages of the three different grafting degrees AB are 10.73, 11.35, and 13.31%, respectively, so theoretical adsorption capacity are 766.4, 810.7, and 950.7 mg/g, respectively.…”

Section: Resultsmentioning

confidence: 99%

Preparation of an aminated bagasse fiber and its mercury adsorption behavior

Chen

Liu

et al. 2010

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

An aminated bagasse (AB) with highadsorption capacity for mercury ions was prepared by grafting copolymerization of acrylonitrile onto sugarcane bagasse, followed by aminating with chelating molecule diethylenetriamine. Effects of grafting conditions such as irradiation dosage, acrylonitrile concentration, and solvents on the grafting yield were investigated. The adsorption performance for mercury ions were evaluated by batch adsorption experiments and kinetic experiments. The results show that AB is effective for the removal of mercury over a wide range of pH > 5. Adsorption isotherms of mercury ions on the modified bagasse can be well described by Langmuir equation. The equilibrium adsorption amount could be as high as 917.4 mg/g, and the removal percent of mercury ions can achieve 99%. The kinetic adsorption results indicate that AB could remove 80% of mercury ions in 2 h and 24 more hours are needed to achieve adsorption equilibrium. Regeneration experiments show that the adsorption capacity of recycled AB still can reach the level of 96% after four cycles.

show abstract

Section: Resultsmentioning

confidence: 99%

Preparation of an aminated bagasse fiber and its mercury adsorption behavior

Chen

Liu

et al. 2010

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…Natural flake graphite (average particle diameter of 40 GO was depicted in the section of "Optimization of PAH loading on GO") was added.…”

Section: Methodsmentioning

confidence: 99%

“…As we all known, adsorption properties of an adsorbent depend on the functional groups on its surfaces. It has been found that an adsorbent containing nitrogen-based ligands (such as, amino, amidoxime, imidazole, and hydrazine groups) was effective in forming complexation with metal ions [39,40]. Poly(allylamine hydrochloride) (PAH) is a kind of well water-soluble polyamine and known for its metal chelation properties due to the presence of a large number of primary amine groups in the molecule (14.6mmol/g in free amine form [41]).…”

Section: Introductionmentioning

confidence: 99%

NH2-rich polymer/graphene oxide use as a novel adsorbent for removal of Cu(II) from aqueous solution

Xing

Chen

Sun

et al. 2015

Chemical Engineering Journal

129

View full text Add to dashboard Cite

“…Then, the conical flask was exposed in c-rays from a 60 Co source with an irradiation dose of 0.837 kGy/h for 48 h to graft St onto ACF. 22 The grafting copolymer product (ACF-St) was then extracted with toluene for 24 h to remove residual styrene monomers and polystyrene homopolymers.…”

Section: B Catalyst Preparationmentioning

confidence: 99%

Preparation of a sulfonated activated carbon fiber catalyst with γ-irradiation-induced grafting method

Chen

Zhuang

et al. 2012

J. Mater. Res.

Self Cite

View full text Add to dashboard Cite

A sulfonated activated carbon fiber catalyst (SACF) was prepared through c-irradiation-induced grafting of styrene onto the surface of activated carbon fiber (ACF) with an irradiation dose of 0.837 kGy/h for 48 h that was then sulfonated with chlorosulfonic acid under mild reaction conditions. Scanning electron microscopy observation showed that the ACF was wrapped by a thin layer of copolymer, and Fourier transfer infrared spectroscopy analysis indicated that sulfonic acid groups were successfully introduced onto the ACF. Pore structure analysis based on nitrogen adsorption isotherms at 77 K demonstrated that pore parameters of ACF were well maintained after the process of grafting and sulfonation modification. Proper conditions for the SACF preparation were sulfonated at 80°C for 1.5 h in the 20% mass percentage of chlorosulfonic acid solution using ACF precursor, whose acid density could reach 1.47 mmol/g. The sulfonated ACF was used as catalyst for the esterification of acetic acid and ethanol. Evaluation of the catalytic activity of SACF showed evident advantages over other typical catalyst, with a turnover frequency value of 0.780 min À1 , about five times higher than Nafion.

show abstract

Preparation of amine group-containing chelating fiber for thorough removal of mercury ions

Cited by 63 publications

References 25 publications

Preparation of an aminated bagasse fiber and its mercury adsorption behavior

Preparation of an aminated bagasse fiber and its mercury adsorption behavior

NH2-rich polymer/graphene oxide use as a novel adsorbent for removal of Cu(II) from aqueous solution

Preparation of a sulfonated activated carbon fiber catalyst with γ-irradiation-induced grafting method

Contact Info

Product

Resources

About