Synthesis of lignin-modified silica nanoparticles from black liquor of rice straw pulping

Zhang, Xiaojun; Zhao, Zhongwei; Ran, Guangjun; Liu, Yan; Liu, Shuang; Zhou, Bing; Wang, Zichen

doi:10.1016/j.powtec.2013.06.034

Cited by 65 publications

(27 citation statements)

References 21 publications

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“…Xiong et al 21 adopted co-precipitation process to prepare hydrophobic lignin-based silica composite submicronparticles via the hydrogen bonding interaction between the hydroxyl groups in lignin and silica. Zhang et al 22 used rice straw black liquor as raw material and CO 2 as acid precipitator to prepare ligninmodied silica nanoparticles by in situ composite method; Thulluri et al 23 summarized the synthesis and development prospect of lignin-based nanocomposites. Saad et al 24 prepared lignin/silica nanocomposites with lignin silylated by triethoxychlorosilane and nanosized silica.…”

Section: 17-19mentioning

confidence: 99%

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Preparation, characterization and the adsorption characteristics of lignin/silica nanocomposites from cellulosic ethanol residue

Tian

Zhou

et al. 2017

RSC Adv.

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The preparation, characterization, and adsorption characteristics of lignin/silica nanocomposites are described. The nanocomposites were obtained from cellulosic ethanol residue (CER) by an in situ method. The lignin was used as a structure directing reagent, and sulfuric acid as precipitating reagent during the synthesis of lignin/silica nanocomposites. The effects of pH on the properties of the nanocomposites have been investigated in detail. The prepared nanocomposites were characterized by the FT-IR, SEM, TG-TGA, XPS and low-temperature nitrogen sorption methods. Adsorption capacities and adsorption behaviors of selected lignin/silica nanocomposite, lignin, and silica for Methylene Blue (MB) were also studied, respectively. The results indicated that the lignin/silica nanocomposite is a good candidate for a biosorbent, providing a potential route for the high value-added utilization of CER.

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Section: 17-19mentioning

confidence: 99%

“…Sulfuric acid was used as a precipitating reagent to form silica colloidal in the solution. 21,22 Aer stirring for 2 h, the ask was taken out from the water bath. Then aging was started.…”

Section: Preparation Of Lignin/silica Nanocompositementioning

confidence: 99%

Preparation, characterization and the adsorption characteristics of lignin/silica nanocomposites from cellulosic ethanol residue

Tian

Zhou

et al. 2017

RSC Adv.

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“…Compared with other components like ash, xylan, and fines, SiO2 must have a greater impact on viscosity. In a wet colloid, surface of the silica particles contains silanol groups (Si-O-H) and silica particles and lignin molecules are connected to form hydrogen bonds (Zhang et al 2013). As the content of SiO2 increased, the number of the colloid groups increased, which made the viscosity of BL increase rapidly.…”

Section: Fig 5 Apparent Viscosity Of Bl At Various Total Solid Concmentioning

confidence: 99%

Effects of pH and Suspended Matter on the Physico-Chemical Properties of Black Liquor from Alkali-Oxygen Pulping of Rice Straw

Zhang¹

2016

BioResources

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Black liquor (BL) can be regarded as the energy and alkali resource of the pulping mill. In this work, the effects of the characteristics of black liquor derived from the alkali-oxygen pulping of rice straw were studied. Through analyses of the chemical and physical properties, especially the thermodynamics properties, which depend on suspended matter and alkalinity, it was shown that the removal of the suspended matter from the black liquor could effectively improve its thermodynamic properties, particularly in making its solids content reach up to more than 56% at the turning point of its viscosity. Moreover, sodium salt played an important role in the presence of macromolecules and silica in the BL. When the BL was adjusted to pH = 11 with NaOH, the filtered BL had the lowest silica content, the highest volumetric isothermal expansivity (VIE), was more susceptibility to thermal cracking, and was more suitable for processing for alkali recovery.

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“…Inorganic membranes show a number of advantageous properties, which make them attractive to filtration tasks. [1][2][3][4] . A flat electrical double layer is created by a charged plane in contact with an electrolyte solution composed of solvent molecules, counter-ions and co-ions.…”

Section: Introductionmentioning

confidence: 99%

Electrical Double Layer Capacitance And Impedance Characteristics of Inorganic Precipitate Membranes

Jadon¹

2017

juc

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To understand the mechanism of ionic diffusion through membranes the membrane resistance, capacitance and impedance of parchment supported Iron phosphate, cupric phosphate and complex ironcupric phosphate membranes have been analyzed. The electrical resistance (R x ), and capacitance(C x ) developed across these membranes have been measured at different electrolyte concentrations and oscillator frequencies.The obtained the values of membrane resistance(R m ), membrane capacitance(C m ), impedance(Z) were found to dependent on the concentration of the electrolyte and on the applied oscillator frequency at isothermal temperature (25±0.1°C). The electrical double-layer at the membrane-electrolyte interface was influenced and controlled by the transport of ions. An increase in concentration of electrolyte solution causes the counter ions in the form of double-layer inside the membranes makes membrane more conductive. Different model-equivalent electrical circuits against to membranes have been analyzed using the experimental data. There is a deviation from theoretical predictions in Membrane resistance, capacitance and impedance due to roughness and non homogeneity of the membranes used in present investigation.

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Synthesis of lignin-modified silica nanoparticles from black liquor of rice straw pulping

Cited by 65 publications

References 21 publications

Preparation, characterization and the adsorption characteristics of lignin/silica nanocomposites from cellulosic ethanol residue

Preparation, characterization and the adsorption characteristics of lignin/silica nanocomposites from cellulosic ethanol residue

Effects of pH and Suspended Matter on the Physico-Chemical Properties of Black Liquor from Alkali-Oxygen Pulping of Rice Straw

Electrical Double Layer Capacitance And Impedance Characteristics of Inorganic Precipitate Membranes

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