scholarly journals Studies on Synthesis, Characterization, and Adsorption of Cationic Dyes from Aqueous Solutions Using Magnetic Composite Material from Natural Clay in Central Kalimantan, Indonesia

Molekul ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. 63
Author(s):  
I Made Sadiana ◽  
Karelius Karelius ◽  
Retno Agnestisia ◽  
Abdul Hadjranul Fatah
Keyword(s):  
Magnetic Material ◽  
Aqueous Solution ◽  
Methylene Blue ◽  
Composite Material ◽  
Rhodamine B ◽  
Solid Phase ◽  
Magnetic Composite ◽  
Natural Clay ◽  
Central Kalimantan ◽  
Adsorption Capacities

Clay is a natural material from crystalline silicate with layered structures, has high cation exchange capacity, and large surface area. These advantages can be used as an adsorbent for the removal of contaminants in aqueous solutions, such as heavy metals and dyes. In Indonesia, clays from Java, Sulawesi, and Sumatra islands have been used as adsorbent, furniture, and construction materials. Due to limited information about basic characteristics of clay from Kalimantan, this clay has not been utilized well. Therefore, natural clay from Kalimantan, especially in Central Kalimantan, was used as adsorbent of cationic dyes in this present study. However, the clay has difficulty for separating the solid phase from aqueous solution after adsorption process. To solve this problem, combining clay with magnetic material was opted. The objectives of this study are to synthesize the magnetic composite material from natural clay by coprecipitation method and to characterize the synthesized magnetic composite material using an x-ray diffraction method, transmission electron microscopy, and vibrating sample magnetometer. The adsorption properties of the synthesized magnetic composite material were evaluated using rhodamine B and methylene blue dyes in aqueous solution. Before magnetic composite material was synthesized, the clay was previously being activated for removing impurities. The magnetic material formed in the structure of clay had magnetite with particle size of 2.75 nm and the magnetization value of 24.91emu/g. The adsorption capacities of natural clay, activated clay, and magnetic composite of clay in rhodamine B were 34.29, 76.27, and 81.46 mg/g, respectively, while in methylene blue were 30.25, 83.92, and 133.90 mg/g, respectively. These results suggested that magnetic composite of clay can increase the adsorption capacities against dyes and accelerate the separation of the adsorbent solid phase from aqueous solution with largest adsorption capacity on methylene blue dye.

scholarly journals Effect of zinc oxid on the bentonite ability for removing Methylene blue from solution

2013 ◽  
Vol 10 (2) ◽  
pp. 442-448
Author(s):  
Baghdad Science Journal
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Zinc Oxide ◽  
Solid Phase ◽  
Langmuir Model ◽  
Batch Adsorption ◽  
Adsorption System ◽  
Freundlich Model ◽  
Adsorption Capacities ◽  
Better Than

A batch adsorption system was applied to study the adsorption of methylene blue from aqueous solution by Iraqi bentonite and treated bentonite with different amount of zinc oxide (ZnO). The adsorption capacities of methylene blue onto bentonite were evaluated. The equilibrium between liquid and solid phase was described by Langmuir model better than the Freundlich model. Langmuir and Freundlich constants have been determined. The separation factor or equilibrium parameter, RL which is used to predict if an adsorption system is favourable or unfavourable was calculated for all cases.

Zeolitic imidazolate framework-8 coated Fe3O4@SiO2 composites for magnetic solid-phase extraction of bisphenols

2020 ◽  
Vol 44 (14) ◽  
pp. 5324-5332 ◽  
Author(s):  
Jinfei Liu ◽  
Huijiao Qiu ◽  
Fei Zhang ◽  
Yan Li
Keyword(s):  
Composite Material ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Magnetic Composite ◽  
Phase Extraction ◽  
Zeolitic Imidazolate Framework ◽  
Magnetic Solid ◽  
Plastic Products

A new magnetic composite material ZIF-8 coated Fe3O4@SiO2 was employed for preconcentration and detection of trace BPs in water and plastic products.

Ultra-high Rhodamine B adsorption capacities from an aqueous solution by activated carbon derived from Phragmites australis doped with organic acid by phosphoric acid activation

RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 40818-40827 ◽  
Author(s):  
Zizhang Guo ◽  
Jian Zhang ◽  
Hai Liu
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Oxalic Acid ◽  
Phosphoric Acid ◽  
Phragmites Australis ◽  
Rhodamine B ◽  
Activated Carbons ◽  
Acid Activation ◽  
Adsorption Capacities ◽  
Phosphoric Acid Activation

This study shows that oxalic acid (OA) and succinic acid (SA) were employed to modify Phragmites australis (PA)-based activated carbons (ACs) during phosphoric acid activation to improve Rhodamine B (RhB) removal from aqueous solutions.

Highly efficient simultaneous ultrasonic-assisted adsorption of methylene blue and rhodamine B onto metal organic framework MIL-68(Al): central composite design optimization

RSC Advances ◽  
2016 ◽  
Vol 6 (33) ◽  
pp. 27416-27425 ◽  
Author(s):  
Mahnaz Saghanejhad Tehrani ◽  
Rouholah Zare-Dorabei
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Rhodamine B ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Simultaneous Removal ◽  
Ultrasonic Assisted ◽  
Metal Organic ◽  
Central Composite ◽  
Organic Framework

In this work, metal organic framework (MIL-68(Al)), was synthesized by a simple, fast and low-cost process for simultaneous removal of methylene blue and Rhodamine B, regarded to be toxic and even carcinogenic, from aqueous solution.

A Review of the Extraction Procedure and Analytical Methods for the Determination of Methylene Blue, Rhodamine B and Crystal Violet

2020 ◽  
Vol 17 ◽  
Author(s):  
Afnan A.H. Hakami ◽  
Saikh M. Wabaidur ◽  
Moonis A. Khan ◽  
Zeid A. AlOthman ◽  
Masoom R. Siddiqui
Keyword(s):  
Methylene Blue ◽  
Crystal Violet ◽  
Rhodamine B ◽  
Analytical Methods ◽  
Solid Phase ◽  
Extraction Procedure ◽  
Cost Effective ◽  
Review Article ◽  
Sorbent Materials

Background:: Dyes have been a blessing to the mankind owing to its numerous applications in several industries ranging from the textile, food, pharmaceuticals, paper, leather and many more. Al the same time these dye poses a problem for mankind if they exceed their limit. This review is all about the determination and extraction of dyes in different matrices. Introduction:: Methylene blue, rhodamine B and crystal violet are the three dyes discussed in this review article. All the three discussed dyes are cationic in nature and poses a threat to the human health if not detected and proper remediation step be taken if exceeding the limit. Methods:: The review article mentioned different analytical methods and different extraction techniques involved in the determination of dyes. Results:: Almost all the analytical methods reported involve proper extraction of the analyte which too finds a place in this review article. Spectrophotometric and electrochemical methods are cost effective method although the former is less sensitive than the later. LC method and LC MS method are capable of simultaneously determining a number of dyes Conclusion:: This review article also offers a compilation of different mobile phase combinations that has been used for the quantitative analysis of these three dyes. The article also contains listing of different solvents for the liquid-liquid extraction and different types of the sorbent materials used during solid phase extraction of the reviewed dyes.

Removal of Methylene Blue from Aqueous Solution by a Novel PAA@Fe-Si Composite Material

2014 ◽  
Vol 665 ◽  
pp. 479-482
Author(s):  
Chao Shuai ◽  
Yun Wen Liao ◽  
He Jun Gao ◽  
Luan Luan Zhang
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Composite Material ◽  
Contact Time ◽  
Maximum Adsorption Capacity ◽  
Cationic Dye ◽  
Solution Ph ◽  
Mb Adsorption ◽  
Scanning Electron ◽  
Better Than

A novel organic-inorganic PAA@Fe-Si composite material was synthesized by acrylic acid and mesoporous iron-incorporated material and used as an efficient and specific adsorbent for the removal of methylene blue (MB), a cationic dye from aqueous solution. The properties of the composite material were characterized by scanning electron microscopy, Fourier transform infrared and thermogravimetric. The effects of initial solution pH, adsorbent dosage, and contact time on MB adsorption and temperature have been investigated. The results showed that the maximum adsorption capacity of PAA@Fe-Si reached 587mg/g at 298 K, which was much better than pure Fe-Si adsorbent.

scholarly journals The preparation of novel mineral-based mesoporous microsphere by microencapsulation technology and its application in the adsorption of dye contaminants

2020 ◽  
Vol 81 (5) ◽  
pp. 985-999
Author(s):  
Wei Chen ◽  
Jingde Luan ◽  
Xiaokun Yu ◽  
Xueqin Wang
Keyword(s):  
Methylene Blue ◽  
Calcination Temperature ◽  
Rhodamine B ◽  
Driving Forces ◽  
Hollow Structure ◽  
Infrared Spectrometry ◽  
Initial Concentration ◽  
Adsorption Capacities ◽  
Before And After ◽  
Water Field

Abstract Microencapsulation technology was adopted to prepare the novel mineral-based mesoporous microsphere (MBMM) for the removal of dye contaminants from water. Field emission scanning electron microscopy, energy dispersive spectrometry, Brunauer–Emmett–Teller zeta potential analysis, and Fourier transform infrared spectrometry were used to investigate the microstructure characteristics of MBMM and its changes in the functional groups before and after adsorption. Batch experiments were carried out to investigate the effect of calcination temperature, initial concentration, pH, contact temperature, and time on the adsorption behavior of rhodamine B and methylene blue onto MBMM. The results indicated that the prepared MBMM had a hollow structure and mesoporous surface, which was beneficial to improving its adsorption capacity. The maximum adsorption capacities of rhodamine B and methylene blue onto MBMM prepared at calcination temperature 500 °C were 57.79 mg g−1 and 55.94 mg g−1 under the conditions of initial concentration 300 mg L−1, dosage 0.1 g, pH 7.0, adsorption temperature 55 °C, and adsorption time 7 h. The results showed that the calcining treatment was beneficial to the formation of mesoporous microspheres, improving their adsorption capacities. The adsorption process was endothermic reaction, and electrostatic attraction and hydrogen bonding were the driving forces of the reaction.

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