Efficient removal of both antimonite (Sb(iii)) and antimonate (Sb(v)) from environmental water using titanate nanotubes and nanoparticles

2019 ◽  
Vol 6 (3) ◽  
pp. 834-850 ◽  
Author(s):  
Tianhui Zhao ◽  
Zhi Tang ◽  
Xiaoli Zhao ◽  
Hua Zhang ◽  
Junyu Wang ◽  
...  
Keyword(s):  
Environmental Water ◽  
Titanate Nanotubes ◽  
Efficient Removal ◽  
P Adsorption ◽  
Plane Slab

Adsorption of Sb on the surface of TiO2 NMs, and optimized TiO2 {101} plane slab models for Sb(iii) and Sb(v) absorption.

scholarly journals Rapid Removal and Efficient Recovery of Tetracycline Antibiotics in Aqueous Solution Using Layered Double Hydroxide Components in an In Situ-Adsorption Process

Crystals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 342 ◽  
Author(s):  
Kwanjira Panplado ◽  
Maliwan Subsadsana ◽  
Supalax Srijaranai ◽  
Sira Sansuk
Keyword(s):  
Aqueous Solution ◽  
Layered Double Hydroxide ◽  
Environmental Water ◽  
Efficient Removal ◽  
In Situ Adsorption ◽  
Aluminum Ions ◽  
Alkaline Conditions ◽  
Efficient Recovery ◽  
Double Hydroxide

This work demonstrates a simple approach for the efficient removal of tetracycline (TC) antibiotic from an aqueous solution. The in situ-adsorption removal method involved instant precipitation formation of mixed metal hydroxides (MMHs), which could immediately act as a sorbent for capturing TC from an aqueous solution, by employing layered double hydroxide (LDH) components including magnesium and aluminum ions in alkaline conditions. By using this approach, 100% removal of TC can be accomplished within 4 min under optimized conditions. The fast removal possibly resulted from an instantaneous adsorption of TC molecules onto the charged surface of MMHs via hydrogen bonding and electrostatically induced attraction. The results revealed that our removal technique was superior to the use of LDH as a sorbent in terms of both removal kinetics and efficiency. Moreover, the recovery of captured TC was tested under the influence of various common anions. It was found that 98% recovery could be simply achieved by using phosphate, possibly due to its highly charged density. Furthermore, this method was successful for efficient removal of TC in real environmental water samples.

A facile method of synthesizing ammonia modified graphene oxide for efficient removal of uranyl ions from aqueous medium

RSC Advances ◽  
2015 ◽  
Vol 5 (94) ◽  
pp. 77192-77203 ◽  
Author(s):  
Swati Verma ◽  
Raj Kumar Dutta
Keyword(s):  
Graphene Oxide ◽  
Aqueous Medium ◽  
Uranyl Ions ◽  
Efficient Removal ◽  
P Adsorption ◽  
Modified Graphene Oxide ◽  
Modified Graphene

Adsorption of uranyl ions on NH3 modified graphene oxide at pH 6.

Efficient Removal of Lead and Cadmium ions by Titanate Nanotubes Prepared at Different Hydrothermal Conditions

2018 ◽  
Vol 15 (2) ◽  
pp. 197-208 ◽  
Author(s):  
Maha A. Alwaili ◽  
Heba Allah M. Elbaghdady ◽  
Ayman H. Zaki ◽  
Mohammed A. Sallam
Keyword(s):  
Electron Microscopy ◽  
Removal Efficiency ◽  
Contact Time ◽  
Titanate Nanotubes ◽  
Bet Surface Area ◽  
Efficient Removal ◽  
Hydrothermal Conditions ◽  
Factors Affecting ◽  
Lead And Cadmium ◽  
Ph Range

Background: Nanotubes serve an important role in heavy metal ions for the removal from wastewater. The efficiency of these nanotubes is dependent on the nature of surface, pH, temperature setting and the hydrothermal contact time. Method: The current research sought to find out the efficiency of titanate nanotubes in the removal of Pb2+ and Cd2+ ions from wastewater. The research concentrated on mesoporosity, pH and hydrothermal contact time, as factors affecting the efficiency of titanate nanotubes in the removal of Pb2+ and Cd2+ ions. Titanate nanotubes were prepared at different hydrothermal conditions, the prepared nanotubes were used for efficient removal of Pb2+ and Cd2+. The following technologies were utilized in the research: (1). electron microscopy (FESEM), (2). X-ray diffraction (XRD), (3). highresolution transmission electron microscopy (HRTEM), (4). FTIR and BET surface area were measured by N2 adsorption using Micrometrics TriStar II. Results: The results obtained reveal that increasing the hydrothermal time improved the adsorption efficiency of the prepared material, where the Titanate nanotubes prepared at the longest time (23hr) achieved the highest removal efficiency for both Pb2+ and Cd2+ at pH 2 and pH 3, respectively. The nanotubes prepared at different conditions also showed significant activities, where the removal % exceeded 90 % for all samples at a pH range of 2 to 3. It was conducted that the factors that affected the efficiency could be set at optimum and the removal efficiency attained be increased, to more than 90%.

The post-modification of magnetic metal–organic frameworks with β-cyclodextrin for the efficient removal of fungicides from environmental water

2020 ◽  
Vol 7 (7) ◽  
pp. 2087-2101 ◽  
Author(s):  
Ibrahim Abdelhai Senosy ◽  
Zhi-Heng Lu ◽  
Talat Mahmoud Abdelrahman ◽  
Mei-Nan Ou Yang ◽  
Hao-Ming Guo ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Environmental Water ◽  
Efficient Removal ◽  
Magnetic Metal ◽  
Metal Organic ◽  
P Application ◽  
Post Modification

Application of magnetic metal-organic frameworks with β-cyclodextrin (Fe3O4@MIL-100(Fe)/β-CD) for efficient removal of fungicides from environmental water.

Amino-functionalized titanate nanotubes for highly efficient removal of anionic dye from aqueous solution

2020 ◽  
Vol 512 ◽  
pp. 145659 ◽  
Author(s):  
Thalles M.F. Marques ◽  
Débora A. Sales ◽  
Lucinaldo S. Silva ◽  
Roosevelt D.S. Bezerra ◽  
Mateus S. Silva ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Titanate Nanotubes ◽  
Efficient Removal ◽  
Anionic Dye ◽  
Highly Efficient
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