scholarly journals Ordered Mesoporous Carbons as Novel and Efficient Adsorbent for Dye Removal from Aqueous Solution

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Phuong T. Dang ◽  
Hoa T. H. Nguyen ◽  
Canh D. Dao ◽  
Giang H. Le ◽  
Quang K. Nguyen ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
High Surface ◽  
High Surface Area ◽  
Soft Template ◽  
Order Kinetic ◽  
Mesoporous Carbons ◽  
Hard Template ◽  
Ordered Mesoporous Carbons ◽  
Ordered Mesoporous ◽  
Mb Adsorption

Ordered mesoporous carbons (OMCs) were successfully synthesized by using hard template and soft template methods. These materials were characterized by XRD, TEM, and N2adsorption-desorption Brunauer-Emmett-Teller (BET). From the obtained results, it is revealed that the obtained OMCs samples showed high surface area (>1000 m2/g) with high pore volume, mainly mesopore volume (1.2–2.4 cm3/g). Moreover, OMCs samples had similar structure of the SBA-15 silica and exhibited high MB adsorption capacity withqmof 398 mg·g−1for OMCs synthesis with hard template and 476 mg·g−1for OMCs synthesis with soft template, respectively. From kinetics investigation, it is confirmed that MB adsorption from aqueous solution obeys the pseudo-second-order kinetic equation.

Tuned surface area and mesopore diameter of ordered mesoporous carbon: ultrahigh decontamination of di(2-ethylhexyl)phthalate

RSC Advances ◽  
2014 ◽  
Vol 4 (45) ◽  
pp. 23853-23860 ◽  
Author(s):  
Pranav K. Tripathi ◽  
Mingxian Liu ◽  
Lihua Gan
Keyword(s):  
Surface Area ◽  
Mesoporous Carbon ◽  
High Surface ◽  
High Surface Area ◽  
Mesoporous Carbons ◽  
Ordered Mesoporous Carbons ◽  
Ordered Mesoporous ◽  
Water Pollutant ◽  
Ethylhexyl Phthalate ◽  
Model Water

High surface area ordered mesoporous carbons were fabricated as superior adsorbents for ultrahigh decontamination of di(2-ethylhexyl)phthalate from a model water pollutant.

scholarly journals Synthesis of Silver-Impregnated Magnetite Mesoporous Silica Composites for Removing Iodide in Aqueous Solution

Toxics ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 175
Author(s):  
Sang-Eun Jo ◽  
Jung-Weon Choi ◽  
Sang-June Choi
Keyword(s):  
Aqueous Solution ◽  
Langmuir Isotherm ◽  
High Surface ◽  
High Surface Area ◽  
High Capacity ◽  
Maximum Adsorption Capacity ◽  
Initial Contact ◽  
Order Kinetic ◽  
Sorption Ability ◽  
High Sorption

Mag@silica-Ag composite has a high sorption ability for I− in aqueous solution due to its high surface area and strong affinity for the studied anion. The material adsorbed I− rapidly during the initial contact time (in 45 min, η = 80%) and reached adsorption equilibrium after 2 h. Moreover, mag@silica-Ag proved to selectively remove I− from a mixture of Cl−, NO3− and I−. The adsorption behavior fitted the Langmuir isotherm perfectly and the pseudo-second-order kinetic model. Based on the Langmuir isotherm, the maximum adsorption capacity of mag@silica-Ag was 0.82 mmol/g, which is significantly higher than previously developed adsorbents. This study introduces a practical application of a high-capacity adsorbent in removing radioactive I− from wastewaters.

Amino-functionalized ordered mesoporous carbon for the separation of toxic microcystin-LR

2015 ◽  
Vol 3 (37) ◽  
pp. 19168-19176 ◽  
Author(s):  
Wei Teng ◽  
Zhangxiong Wu ◽  
Jianwei Fan ◽  
Wei-xian Zhang ◽  
Dongyuan Zhao
Keyword(s):  
Mesoporous Carbon ◽  
High Surface ◽  
High Density ◽  
Ordered Mesoporous Carbon ◽  
Dynamic Adsorption ◽  
Mesoporous Carbons ◽  
Amino Groups ◽  
Ordered Mesoporous Carbons ◽  
Surface Areas ◽  
Ordered Mesoporous

Amino-functionalized ordered mesoporous carbons were prepared with high surface areas and high-density amino groups, exhibiting pre-eminent batch and dynamic adsorption capabilities (580 and 334 mg g−1, respectively) for microcystin-LR removal.

Pd nanoparticles modified rod-like nitrogen-doped ordered mesoporous carbons for effective catalytic hydrodechlorination of chlorophenols

RSC Advances ◽  
2016 ◽  
Vol 6 (33) ◽  
pp. 27313-27319 ◽  
Author(s):  
Wei Zhang ◽  
Fushan Wang ◽  
Xinlin Li ◽  
Yansheng Liu ◽  
Jiantai Ma
Keyword(s):  
Self Assembly ◽  
Pd Nanoparticles ◽  
Soft Template ◽  
Mesoporous Carbons ◽  
One Pot ◽  
Ordered Mesoporous Carbons ◽  
Catalytic Hydrodechlorination ◽  
Nitrogen Doped ◽  
Ordered Mesoporous

The preparation of rod-like nitrogen-doped ordered mesoporous carbons (NOMCs) through a facial aqueous soft-template self-assembly route in one-pot is presented in this work.

scholarly journals Adsorption Characteristics of Phenol and Reactive Dyes from Aqueous Solution onto Ordered Mesoporous Carbons Prepared via a Template Synthesis Route

2009 ◽  
Vol 27 (7) ◽  
pp. 643-659 ◽  
Author(s):  
Taihong Shi ◽  
Yinghong Wen ◽  
Chunyu Ma ◽  
Shiguo Jia ◽  
Zhuochao Wang ◽  
...  
Keyword(s):  
Mesoporous Materials ◽  
Adsorption Kinetics ◽  
Reactive Dyes ◽  
Nitrogen Adsorption ◽  
Order Kinetic ◽  
Mesoporous Carbons ◽  
Ordered Mesoporous Carbons ◽  
Adsorption Capacities ◽  
Ordered Mesoporous ◽  
The Difference

Ordered mesoporous carbons (OMCs) were prepared using SBA-15 as the template and sucrose as the precursor. Various different mesoporous materials (CMK-3-80, CMK-3-90, CMK-3-100 and CMK-Na2SiO3-3-90) were synthesized employing different conditions. The pore structures and characteristics of the OMC materials were evaluated using XRD, SEM and nitrogen adsorption studies, respectively, and their adsorption properties towards phenol and dyes were investigated. The results showed that the order of the pore diameter in the mesoporous materials followed the sequence: CMK-3-100 > CMK-3-90 > CMK-3-80 > CMK-Na2SiO3-3-90. Adsorption experiments revealed that the mesoporous carbons prepared possessed larger adsorption capacities towards phenol and the Reactive dyes Methylene Blue (MB) and Rhodamine Blue (RB) relative to commercial active carbon. Adsorption kinetics experiments showed that the rates of adsorption of MB and RB onto CMK-3 differed in line with the difference in pore size. Furthermore, the adsorption kinetics of MB and RB onto CMK-3 could be well described by the pseudo-first-order kinetic model. The adsorption isotherms indicated that the equilibrium adsorption capacities of the two dyes onto CMK-3 were not the same and could not be correlated with either the relative magnitudes of the mesopore surface areas or the mesopore volumes.

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