Synthesis, SDBS modification and phenol adsorption capability of Mg-Al hydrotalcites

2011 ◽  
Author(s):  
Zhi Yang ◽  
Xin Yuan ◽  
Senlin Tian ◽  
Yanhua Niu
Keyword(s):  
Phenol Adsorption ◽  
Adsorption Capability

Support vector regression-based model for phenol adsorption in rotating packed bed adsorber

2021 ◽  
Author(s):  
Rameez Ahmad Aftab ◽  
Sadaf Zaidi ◽  
Mohd Danish ◽  
Sayed Mohammad Adnan ◽  
Khursheed B. Ansari ◽  
...  
Keyword(s):  
Support Vector Regression ◽  
Packed Bed ◽  
Support Vector ◽  
Phenol Adsorption ◽  
Rotating Packed Bed

scholarly journals Construction of the Cellulose Nanofibers (CNFs) Aerogel Loading TiO2 NPs and Its Application in Disposal of Organic Pollutants

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1841
Author(s):  
Kang Li ◽  
Xuejie Zhang ◽  
Yan Qin ◽  
Ying Li
Keyword(s):  
High Efficiency ◽  
Sol Gel ◽  
Cellulose Nanofibers ◽  
Three Dimensional ◽  
Good Mechanical Property ◽  
Polar Groups ◽  
Dimensional Network ◽  
Natural Polysaccharide ◽  
Valuable Method ◽  
Adsorption Capability

Aerogels have been widely used in the adsorption of pollutants because of their large specific surface area. As an environmentally friendly natural polysaccharide, cellulose is a good candidate for the preparation of aerogels due to its wide sources and abundant polar groups. In this paper, an approach to construct cellulose nanofibers aerogels with both the good mechanical property and the high pollutants adsorption capability through chemical crosslinking was explored. On this basis, TiO2 nanoparticles were loaded on the aerogel through the sol-gel method followed by the hydrothermal method, thereby the enriched pollutants in the aerogel could be degraded synchronously. The chemical cross-linker not only helps build the three-dimensional network structure of aerogels, but also provides loading sites for TiO2. The degradation efficiency of pollutants by the TiO2@CNF Aerogel can reach more than 90% after 4 h, and the efficiency is still more than 70% after five cycles. The prepared TiO2@CNF Aerogels have high potential in the field of environmental management, because of the high efficiency of treating organic pollutes and the sustainability of the materials. The work also provides a choice for the functional utilization of cellulose, offering a valuable method to utilize the large amount of cellulose in nature.

scholarly journals Influence of the Presence of Different Alkali Cations and the Amount of Fe(CN)6 Vacancies on CO2 Adsorption on Copper Hexacyanoferrates

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3371 ◽  
Author(s):  
Svensson ◽  
Grins ◽  
Eklöf ◽  
Eriksson ◽  
Wardecki ◽  
...  
Keyword(s):  
Thermogravimetric Analysis ◽  
Prussian Blue ◽  
Co2 Adsorption ◽  
X Ray Diffraction ◽  
Alkali Cations ◽  
Prussian Blue Analogue ◽  
X Ray ◽  
Infra Red ◽  
Adsorption Desorption ◽  
Adsorption Capability

The CO2 adsorption on various Prussian blue analogue hexacyanoferrates was evaluated by thermogravimetric analysis. Compositions of prepared phases were verified by energy-dispersive X-ray spectroscopy, infra-red spectroscopy and powder X-ray diffraction. The influence of different alkali cations in the cubic Fm3m structures was investigated for nominal compositions A2/3Cu[Fe(CN)6]2/3 with A = vacant, Li, Na, K, Rb, Cs. The Rb and Cs compounds show the highest CO2 adsorption per unit cell, 3.3 molecules of CO2 at 20 C and 1 bar, while in terms of mmol/g the Na compound exhibits the highest adsorption capability, 3.8 mmol/g at 20 C and 1 bar. The fastest adsorption/desorption is exhibited by the A-cation free compound and the Li compound. The influence of the amount of Fe(CN)6 vacancies were assessed by determining the CO2 adsorption capabilities of Cu[Fe(CN)6]1/2 (Fm3m symmetry, nominally 50% vacancies), KCu[Fe(CN)6]3/4 (Fm3m symmetry, nominally 25% vacancies), and CsCu[Fe(CN)6] (I-4m2 symmetry, nominally 0% vacancies). Higher adsorption was, as expected, shown on compounds with higher vacancy concentrations.

Effect of activated carbons modification on porosity, surface structure and phenol adsorption

2008 ◽  
Vol 151 (2-3) ◽  
pp. 414-421 ◽  
Author(s):  
G.G. Stavropoulos ◽  
P. Samaras ◽  
G.P. Sakellaropoulos
Keyword(s):  
Surface Structure ◽  
Activated Carbons ◽  
Phenol Adsorption

Preparation of Sands Modified by Aluminous Salt and its Adsorption Capability of CD2+

2011 ◽  
Vol 130-134 ◽  
pp. 856-859
Author(s):  
Chun Sheng Ding ◽  
Yang Ping Fu ◽  
Qian Fen Zhu ◽  
Jing Fu
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Influencing Factors ◽  
Removal Efficiency ◽  
Specific Surface Area ◽  
Quartz Sand ◽  
Ph Value ◽  
Alkaline Condition ◽  
Initial Concentration ◽  
Adsorption Capability

In this experiment quartz sand was chosen as a carrier to be coated by aluminous salt under alkaline condition, and then the specific surface area was tested, and the adsorption capability and Cd2+ removal influencing factors of modified sand were studied. The investigation results showed that the specific surface area of modified sand was 75.244m2/g which was 9.38 times of that of original sand; the removal efficiency of Cd2+ by aluminous salt modified sand reached 59% contrast to 39% of original sand with pH 7.00. It was also found that the removal efficiency of Cd2+ by the aluminous salt modified sand was reduced with the increase of initial concentration of Cd2+ solution, and was enhanced with the increase of pH value, the Cd2+ removal efficiency was almost 71% with pH 9.0.

Preparation, characterization, and phenol adsorption of activated carbons from oxytetracycline bacterial residue

2012 ◽  
Vol 62 (12) ◽  
pp. 1394-1402 ◽  
Author(s):  
Baohua Zhou ◽  
Qin Gao ◽  
Honghua Wang ◽  
Erhong Duan ◽  
Bin Guo ◽  
...  
Keyword(s):  
Activated Carbons ◽  
Phenol Adsorption

Mesoporous carbonaceous materials prepared from used cigarette filters for efficient phenol adsorption and CO2 capture

RSC Advances ◽  
2015 ◽  
Vol 5 (130) ◽  
pp. 107299-107306 ◽  
Author(s):  
Aibing Chen ◽  
Yonglei Li ◽  
Yifeng Yu ◽  
Yuetong Li ◽  
Linsong Zhang ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Triblock Copolymer ◽  
Carbon Precursor ◽  
Carbonaceous Materials ◽  
Phenol Adsorption ◽  
The Matrix

Mesoporous carbonaceous materials are synthesized using resol as the carbon precursor, triblock copolymer F127 as the template and cigarette filters as the matrix scaffold, and exhibit notable phenol adsorption and CO2 capture.

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