Removal of cadmium(II) from aqueous solution by corn stalk graft copolymers

Zheng, Liuchun; Dang, Zhi; Zhu, Chaofei; Yi, Xiaoyun; Zhang, Hui; Liu, Cong‐Qiang

doi:10.1016/j.biortech.2010.03.013

Cited by 73 publications

(24 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…3 showed the XRD patterns for RCS and XMCS. 2θ diffraction peaks at 15.5 and 22.5°are considered to be the amorphous and crystalline domain of cellulose structure [9]. RCS showed the higher intensity of the peaks and crystallinities, implying the cellulose molecules are arranged in ordered lattice [20] and -OH groups were bonded by hydrogen bonds (C-H-O) [14].…”

Section: Ftirmentioning

confidence: 99%

“…Fortunately, chemical modification can be carried out to destroy these hydrogen bonds, in order to make -OH groups at C-6, C-2 and C-3 become more reactive to attach other functional groups, and vary better adsorptive properties [6]. In our previous research, we have focused on modified corn stalk to produce several useful adsorbents for Cd (II), such as corn stalk modified by acrylonitrile [11], corn stalk grafted with acrylonitrile [9], and cellulose isolated from corn stalk [4]. Recently, some researches have been done for cellulose xanthates prepared from Eichhornia crassipes, showing more promising for the removal of Pb (II) [12], and Cu (II) [13], which provides a tentative method for the modification of corn stalk.…”

Section: Introductionmentioning

confidence: 99%

“…Corn stalk is traditionally used for forage, baled for animal bedding [7], or directly burned. Actually, chemical reactivity of the hydroxyl groups (-OH) in cellulose is another important function [8], and leads to possess certain adsorption capacity for corn stalk [9]. But in fact, the adsorption capacity of raw corn stalk is generally lower, owing to -OH groups involved in intermolecular hydrogen bonds of cellulose [10].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Preparation, characterization of corn stalk xanthates and its feasibility for Cd (II) removal from aqueous solution

Zheng

Meng

2016

Journal of the Taiwan Institute of Chemical Engineers

Self Cite

View full text Add to dashboard Cite

Section: Ftirmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation, characterization of corn stalk xanthates and its feasibility for Cd (II) removal from aqueous solution

Zheng

Meng

2016

Journal of the Taiwan Institute of Chemical Engineers

Self Cite

View full text Add to dashboard Cite

“…The other adsorption at 2,920 cm −1 relates to the C-H stretching. The peak observed at 797 cm −1 in raw RS corresponds to the glycoside linkages deforming with ring vibration and OH bending [22]. The absorption bands at 1,800-1,300 cm −1 are the characteristics of C=C in aromatics ring [23].…”

Section: Ftir Spectral Analysismentioning

confidence: 99%

Anionic surfactant-modified rice straw for removal of methylene blue from aqueous solution

Pirbazari

Kisom

Khararoodi

2015

Desalination and Water Treatment

View full text Add to dashboard Cite

A B S T R A C TThis research reports on the development of organo-modified rice straw (RS) adsorbent prepared using sodium dodecyl sulfate (SDS) for removing methylene blue (MB), a model cationic dye, from aqueous solution. The natural and modified samples were characterized by scanning electron microscopy, nitrogen physisorption, and Fourier transform infrared spectroscopy. Batch adsorption experiments were carried out to remove MB from its aqueous solutions using SDS-modified RS (SMRS). The different parameters affecting the adsorption capacity such as pH of the solution, initial dye concentration, and contact time have been investigated. Analysis of adsorption results obtained at different temperatures showed that the adsorption pattern on the SMRS can be described perfectly with the Langmuir isotherm model compared with the Freundlich isotherm model, and the characteristic parameters for each adsorption isotherm were also determined, and the Langmuir adsorption capacity, Q max , was found to be 296 mg/g for SMRS and 145 mg/g for RS at 303 K, respectively. The adsorption kinetic followed the pseudo-second-order kinetic model. Desorption studies suggest that MB adsorption onto the SMRS should be mainly controlled by the hydrophobic interaction mechanism, along with a considerable contribution of the cationic exchange mechanism.

show abstract

“…There are several major advantages of using biosorption for removal of heavy metals: effectiveness, low cost, minimization of chemical sludge, regeneration, no additional nutrients, and possibility for commercial metal recovery. The least expensive source of lignocellulosic materials is the plant wastes, such as sawdust from wood industry [1]- [3], bark [4], [5], rice husk [6], [7], straw [8], corn stalk [9].…”

Section: Introductionmentioning

confidence: 99%

Removal of Heavy Metals From Water by Wood-Based Lignocellulocis Materials

Pešić¹

2017

WIT Transactions on Ecology and the Environment

View full text Add to dashboard Cite

Drinking water, particularly mine and industrial waters, may contain concentrations of heavy metals above the limits defined by the intended use. Therefore, hazardous heavy metals must be removed by water treatment, which in turn must satisfy the key criteria: to be efficient and inexpensive. The simplest method for treatment of mine and industrial waters is by chemical precipitation in the form of metal hydroxides. For treatment of drinking water, characterized by very low concentration of heavy metals, the adsorption on a solid support, such as activated carbon, is a common practice. The major deficiency of using activated carbon is the slow kinetics, low loading capacity, and high costs. For that reason, substantial research efforts are directed toward the use of natural sorbents, such as cellulose from wood. In this paper, the results will discuss the use of cellulose from wood for removal of cadmium from water of similar characteristics as drinking water. The other results will point to the treatment of water characterized with much higher concentrations of heavy metals, as found in mine waters. The adsorption studies were performed as a function of typical parameters: pH, concentration, temperature, etc. To enhance the sorption capacity and kinetics, the cellulose molecules were modified by esterification, which was found highly beneficial. Regarding the source of cellulose, several wood species were examined. Among these, cottonwood consistently showed superior performance.

show abstract

Removal of cadmium(II) from aqueous solution by corn stalk graft copolymers

Cited by 73 publications

References 32 publications

Preparation, characterization of corn stalk xanthates and its feasibility for Cd (II) removal from aqueous solution

Preparation, characterization of corn stalk xanthates and its feasibility for Cd (II) removal from aqueous solution

Anionic surfactant-modified rice straw for removal of methylene blue from aqueous solution

Removal of Heavy Metals From Water by Wood-Based Lignocellulocis Materials

Contact Info

Product

Resources

About