scholarly journals Removal of Methylene Blue in Aqueous Solution by Microwave and Fly Ash Combined Process

2017 ◽  
Author(s):  
Yuheng Quan ◽  
Lan Chen
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Fly Ash ◽  
Combined Process

scholarly journals Adsorption of Methylene Blue from Aqueous Solution on High Lime Fly Ash: Kinetic, Equilibrium, and Thermodynamic Studies

2012 ◽  
Vol 33 (1) ◽  
pp. 15-23 ◽  
Author(s):  
Serkan Keleşoğlu ◽  
Mürşide Kes ◽  
Leman Sütçü ◽  
Hürriyet Polat
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Fly Ash ◽  
Thermodynamic Studies ◽  
Kinetic Equilibrium

Treatment of methylene blue in aqueous solution by electrocoagulation/micro-crystalline cellulosic adsorption combined process

2020 ◽  
Vol 203 ◽  
pp. 379-387
Author(s):  
Noshaba Noreen ◽  
Mohsin Kazmi ◽  
Nadeem Feroze ◽  
Farhan Javed ◽  
Haji Ghulam Qutab ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Combined Process

scholarly journals Adsorptive removal of methylene blue from aqueous solution using coal fly ash-derived mesoporous silica material

2019 ◽  
Vol 37 (3-4) ◽  
pp. 333-348 ◽  
Author(s):  
Ning Yuan ◽  
Hui Cai ◽  
Tian Liu ◽  
Qi Huang ◽  
Xinling Zhang
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Fly Ash ◽  
Mesoporous Silica ◽  
Coal Fly Ash ◽  
Nitrogen Adsorption ◽  
Mesoporous Silica Material ◽  
Adsorptive Removal ◽  
Silica Material ◽  
Adsorption Desorption

In the present work, coal fly ash-derived mesoporous silica material (CFA-MS) has been successfully fabricated without employing any extra silica source. The obtained CFA-MS was characterized by Fourier transform infrared spectroscopy, nitrogen adsorption–desorption measurement, powder X-ray diffraction and transmission electron microscopy. Nitrogen adsorption–desorption measurement disclosed that CFA-MS possesses Brunauer–Emmett–Teller-specific surface area of 497 m2·g−1 and pore volume of 0.49 cm3·g−1, respectively. Furthermore, CFA-MS was evaluated for the adsorptive removal of methylene blue from aqueous solution. Several influence parameters on the removal of methylene blue including contact time, pH, initial concentration and temperature were studied in detail. Moreover, Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherm models were employed for interpretation of the adsorption process, while the pseudo-first-order and pseudo-second-order kinetics equations were applied to investigate the adsorption kinetics. Results in the current work demonstrate that CFA-MS can be used as an efficient adsorbent for methylene blue removal.

Two-step modification towards enhancing the adsorption capacity of fly ash for both inorganic Cu(II) and organic methylene blue from aqueous solution

2018 ◽  
Vol 25 (36) ◽  
pp. 36449-36461 ◽  
Author(s):  
Hongqiang Jin ◽  
Yang Liu ◽  
Chunyang Wang ◽  
Xunhui Lei ◽  
Min Guo ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Fly Ash ◽  
Adsorption Capacity

Evaluation of fly ash as an adsorbent for the removal of methylene blue from its aqueous solution

2004 ◽  
Vol 2004 (6) ◽  
pp. 633-644 ◽  
Author(s):  
K. Vasanth Kumar ◽  
K. Subanandam ◽  
M. Pulikesi ◽  
S. Sivanesan ◽  
V. Ramamurthi
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Fly Ash

Adsorptive Removal of Methylene Blue in Aqueous Solution with Alkali Activated Fly Ash

2013 ◽  
Vol 726-731 ◽  
pp. 629-633 ◽  
Author(s):  
Shou Cheng Zhu ◽  
Chun Guang Miao ◽  
Yan Wu ◽  
Hong Xing Yang
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Fly Ash ◽  
Textile Industry ◽  
Common Source ◽  
Dyeing Wastewater ◽  
Printing And Dyeing Wastewater ◽  
Treatment Processes ◽  
Finishing Processes ◽  
Alkali Activated

Dyeing and finishing processes applied in the textile industry are the most common source of water pollution. The wastewater containing dyes is difficult to treat. The fly ash modified by alkali was investigated in this study to evaluate the removal efficiency of methylene blue in aqueous solution. The experimental results shown that the efficiency of adsorption could be prominent improved by alkali activated fly ash. Alkali activated fly ash could be an economical adsorbents used for printing and dyeing wastewater treatment processes.

Using of modified-bentonite as low-cost sorbent for removal of methylene blue dye from aqueous solution

2020 ◽  
Vol 27 (2) ◽  
pp. 45-54
Author(s):  
Saraa Muwafaq Ibrahim ◽  
Ziad T. Abd Ali
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Silanol Group ◽  
Infrared Spectrometry ◽  
Blue Dye ◽  
Ammonium Bromide ◽  
Vibration Band ◽  
Order Kinetic ◽  
Methylene Blue Dye ◽  
Modified Bentonite

Batch experiments have been studied to remove methylene blue dye (MB) from aqueous solution using modified bentonite. The modified bentonite was synthesized by replacing exchangeable calcium cations in natural bentonite with cationic surfactant cetyl trimethyl ammonium bromide (CTAB). The characteristics of modified bentonite were studied using different analysis such as Scanning electronic microscopy (SEM), Fourier transform infrared spectrometry (FTIR) and surface area. Where SEM shows the natural bentonite has a porous structure, a rough and uneven appearance with scattered and different block structure sizes, while the modified bentonite surface morphology was smooth and supplemented by a limited number of holes. On other hand, (FTIR) analysis that proved NH group aliphatic and aromatic group of MB and silanol group are responsible for the sorption of contaminate. The organic matter peaks at 2848 and 2930 cm-1 in the spectra of modified bentonite which are sharper than those of the natural bentonite were assigned to the CH2 scissor vibration band and the symmetrical CH3 stretching absorption band, respectively, also the 2930 cm-1 peak is assigned to CH stretching band. The batch study was provided the maximum removal efficiency (99.99 % MB) with a sorption capacity of 129.87 mg/g at specified conditions (100 mg/L, 25℃, pH 11 and 250rpm). The sorption isotherm data fitted well with the Freundlich isotherm model. The kinetic studies were revealed that the sorption follows a pseudo-second-order kinetic model which indicates chemisorption between sorbent and sorbate molecules.

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