Review on Calixarene Fluorescent Chemosensor Agents for Various Analytes

2021 ◽  
Author(s):  
Krisfian Tata Aneka Priyangga ◽  
Yehezkiel Steven Kurniawan ◽  
Keisuke Ohto ◽  
Jumina Jumina
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Environmental Samples ◽  
Heavy Metal Ions ◽  
The Other ◽  
Fluorescent Chemosensors ◽  
The Past ◽  
The World ◽  
Living Organisms ◽  
Detection And Quantification

Calixarenes are well-known supramolecular host molecules with versatile applications. Over the past decades, hundreds of selective and sensitive detections of several analytes have been reported by employing calixarenes as the chemosensor agent. The detection and quantification of metal ions and anions are crucial as heavy metal ions are harmful to living organisms, while monitoring anions is pivotal in the environmental samples. On the other hand, detecting and quantifying biomolecules and neutral molecules are critical due to their irreplaceable role in human health. In this review, we summarized the application of calixarenes as the supramolecular chemosensor agent for detecting metal ions, anions, biomolecules, and neutral molecules through fluorescent spectroscopy to give brief information on the design and development of the chemosensor field. This review updates the world with the application of calixarene derivatives as fluorescent chemosensors and challenges researchers to design and develop better chemosensor agents in the future.

scholarly journals Magneto-Fluorescent Hybrid Sensor CaCO3-Fe3O4-AgInS2/ZnS for the Detection of Heavy Metal Ions in Aqueous Media

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4373
Author(s):  
Danil Kurshanov ◽  
Pavel Khavlyuk ◽  
Mihail Baranov ◽  
Aliaksei Dubavik ◽  
Andrei Rybin ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Aqueous Media ◽  
Semiconductor Quantum Dots ◽  
Fluorescent Properties ◽  
Fluorescence Sensors ◽  
The Past ◽  
Porous Calcium Carbonate ◽  
Toxic Ions

Heavy metal ions are not subject to biodegradation and could cause the environmental pollution of natural resources and water. Many of the heavy metals are highly toxic and dangerous to human health, even at a minimum amount. This work considered an optical method for detecting heavy metal ions using colloidal luminescent semiconductor quantum dots (QDs). Over the past decade, QDs have been used in the development of sensitive fluorescence sensors for ions of heavy metal. In this work, we combined the fluorescent properties of AgInS2/ZnS ternary QDs and the magnetism of superparamagnetic Fe3O4 nanoparticles embedded in a matrix of porous calcium carbonate microspheres for the detection of toxic ions of heavy metal: Co2+, Ni2+, and Pb2+. We demonstrate a relationship between the level of quenching of the photoluminescence of sensors under exposure to the heavy metal ions and the concentration of these ions, allowing their detection in aqueous solutions at concentrations of Co2+, Ni2+, and Pb2+ as low as ≈0.01 ppm, ≈0.1 ppm, and ≈0.01 ppm, respectively. It also has importance for application of the ability to concentrate and extract the sensor with analytes from the solution using a magnetic field.

Cost-Effective Alumina-Polymer Nanocomposite: An Excellent Candidate for the Removal of Heavy Metal Ions from Environmental Samples

Nano Progress ◽  
2019 ◽  
Vol 1 (1) ◽  
Author(s):  
C.M. Babu ◽  
R. Balasubramanian ◽  
R. Vinodh ◽  
P. Thirukumaran ◽  
A. Shakila Parveen ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Environmental Samples ◽  
Heavy Metal Ions ◽  
Polymer Nanocomposite ◽  
Cost Effective ◽  
Excellent Candidate

Cost-Effective Alumina-Polymer Nanocomposite: An Excellent Candidate for the Removal of Heavy Metal Ions from Environmental Samples

Nano Progress ◽  
2019 ◽  
Vol 1 (1) ◽  
Author(s):  
C.M. Babu ◽  
R. Balasubramanian ◽  
R. Vinodh ◽  
P. Thirukumaran ◽  
A. Shakila Parveen ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Environmental Samples ◽  
Heavy Metal Ions ◽  
Polymer Nanocomposite ◽  
Cost Effective ◽  
Excellent Candidate

Separation of Trace Heavy Metal Ions from Leaching Liquor of Low-Grade Pyrolusite with Pyrite and H2SO4

2014 ◽  
Vol 893 ◽  
pp. 457-460
Author(s):  
Xing Zou ◽  
Xiao Dan Qiu
Keyword(s):  
Heavy Metal ◽  
Reaction Time ◽  
Ternary System ◽  
Equilibrium State ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
The Other ◽  
Low Grade ◽  
Original Solution ◽  
Quaternary Systems

Separation of trace heavy metal ions with BaS from solutions of five kinds of systems was studied. One was prepared with the solution (called as original solution here) leached from pyrolusite with pyrite and H2SO4, and the other four kinds of systems were prepared in the laboratory according to the composition of the original solution. They are respectively: a ternary system of NiSO4CoSO4ZnSO4; two quaternary systems of (NH4)2SO4NiSO4CoSO4ZnSO4 and MnSO4NiSO4CoSO4ZnSO4; a quintuple system of MnSO4(NH4)2SO4NiSO4CoSO4ZnSO4. The experiments have researched the effect of reaction time and dosage of BaS on the separation of heavy metal ions. According to the results, it took the five systems 10minutes to reach the equilibrium state and re-dissolution was found in the results. As the increasing of BaS dosage, the residual heavy metal ions would reduce, but the results of five systems were different when the same BaS was used.

scholarly journals HEAVY METALS (Pb+2, Ni+2, Zn+2) REMOVAL FROM WASTEWATER USING LOW COST ADSORBENTS: A REVIEW

2021 ◽  
Vol 25 (Special) ◽  
pp. 3-88-3-96
Author(s):  
Hibatallah J. Shamkhi ◽  
◽  
Tamara K. Hussein ◽  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Membrane Separation ◽  
Low Cost ◽  
Chemical Separation ◽  
Skin Contact ◽  
Lead Zinc ◽  
Living Organisms

Pollution with heavy metal ions lead, zinc and nickel resulting from industrial wastewater for various industries such as electroplating industry, batteries, metal refining mines and other factories which discharge into the environment causing damage and pollution to the environment, living organisms, and the majority of heavy metals carcinogenic due to its high toxicity and its containment of dangerous chemicals. Potential danger to human health in all forms by ingestion, inhalation, or skin contact pose by heavy metals ions such as lead, nickel, zinc, and others. To prevent hazards, they must be removed before disposal by different methods such as ion- exchange, chemical separation, filtration, membrane separation, and adsorption. The purpose of this research is to review different low cost adsorbent materials to remove heavy metal ions lead, zinc and nickel from wastewater.

scholarly journals Photocatalytic Heavy Metal Detoxification from Water Systems

2021 ◽  
pp. 57-76
Author(s):  
P.S. Kumar
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Circulatory System ◽  
Toxic Metal ◽  
Electrochemical Treatment ◽  
Aqueous System ◽  
Human Beings ◽  
Heavy Metal Detoxification ◽  
Living Organisms

Heavy metals are one of the greatest elevating threat to mankind and other living organisms and it is released into the environment due to increasing dumpsites, transports, and industrial sectors. The industrial wastewater containing heavy metal ions easily enters into the food chain through the air, water, and soil; it results in bioaccumulation and biomagnifications of metal ions in human beings. It causes severe chronic health disorders affecting the nervous system, circulatory system, digestive system and other sensitive organs of the human body. Many conventional techniques such as adsorption, coagulation, flocculation, electrochemical treatment, and biological treatment are used for the reduction of heavy metal ions in the aqueous system. The photocatalysis method is one of the emerging effective ways for eliminating the toxic metal ions from the aqueous solution. This chapter elaborates the principle, mechanism and various methods utilized in the photocatalytic reduction of heavy metal ions from the wastewater.

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