Taguchi Optimization Study for Efficient Removal of Phenolic Pollutants from Wastewater Using Cu-Alanine Functionalized Graphene Oxide and Their Grafted Alginate Microbeads: Isotherm Modeling

2021 ◽  
Author(s):  
Esraa M. El-Fawal ◽  
T. Zaki
Keyword(s):  
Graphene Oxide ◽  
Functionalized Graphene ◽  
Efficient Removal ◽  
Taguchi Optimization ◽  
Functionalized Graphene Oxide ◽  
Isotherm Modeling ◽  
Phenolic Pollutants ◽  
Optimization Study

scholarly journals Electrochemical Detection of 4-Nitrophenol by Using Graphene Based Nanocomposite Modified Glassy Carbon Electrodes: A Mini Review

2021 ◽  
pp. 61-87
Author(s):  
E. Prabakaran ◽  
Kriveshini Pillay
Keyword(s):  
Graphene Oxide ◽  
Glassy Carbon ◽  
Metallic Nanoparticles ◽  
Agricultural Sector ◽  
Chemical Degradation ◽  
High Yield ◽  
Functionalized Graphene ◽  
Agricultural Field ◽  
Functionalized Graphene Oxide ◽  
Phenolic Pollutants

This article describes the fabrication of electrochemical devices for the detection of a key environmental pollutant, 4-Nitrophenol (4-NPh). 4-NPh is a requirement for the synthesis of organophosphate pesticides. These pesticides are mostly used in the agricultural sector to obtain a high yield of agricultural products. The use of 4-NPh in the agricultural field results in poisonous levels of this compound in the soil and water. Different techniques have been used for its transformation by biological and chemical degradation. However, these strategies not only created highly toxic pollutant but also need fast operation and time consuming processes. In this background, we have reported a broad and efficient review of the electrochemical reduction of 4-NPh as a feasible alternate method. In this review paper, graphene oxide (GO), reduced graphene oxide (rGO), N-doped graphene oxide, functionalized graphene oxide, metallic nanoparticles coated graphene oxide, metal oxides covered on rGO, polymer functionalized graphene oxide and hybrids materials functionalized with graphene oxide (hydroxyl apatite and β-cyclodextrin) which have been fabricated on a glassy carbon electrode (GCE) to enhance the electrocatalytic reduction and increase the sensor activity of 4-NPh are discussed. We have also described the effects of a few interfering phenolic pollutants such as aminophenol, hydroquinone, o-nitrophenol (o-NPh), trinitrotoluene, trinitrophenol, 2, 4-dinitrophenol (4-DNPh) and nitrobenzene. In the paper, easy and more effective electrochemical methods for the detection of 4-NPh with graphene- based nanocomposites modified on GCE for 4-NPh detection are summarized and discussed.

One-step synthesis of SnO2-reduced graphene oxide (SOG) composites for efficient removal of organic dyes from wastewater

RSC Advances ◽  
2016 ◽  
Vol 6 (102) ◽  
pp. 100636-100642 ◽  
Author(s):  
Wenzhu Yin ◽  
Huaqiang Cao
Keyword(s):  
Graphene Oxide ◽  
Organic Dyes ◽  
Functionalized Graphene ◽  
High Adsorption ◽  
Efficient Removal ◽  
Functionalized Graphene Oxide ◽  
Adsorption Capacities ◽  
Reduced Graphene ◽  
One Step ◽  
Adsorption Rates

In this work, SnO2 functionalized graphene oxide was shown to possess high adsorption capacities and fast adsorption rates for organic dyes over wide pH ranges. Additionally, the adsorbent could be easily regenerated by washing with ethanol.

Efficient Removal of Cobalt(II) and Strontium(II) Metals from Water using Ethylene Diamine Tetra-acetic Acid Functionalized Graphene Oxide

2017 ◽  
Vol 643 (22) ◽  
pp. 1776-1784 ◽  
Author(s):  
Hany Amer ◽  
Wafaa M. Moustafa ◽  
Ahmed A. Farghali ◽  
Waleed M. A. El Rouby ◽  
Waleed F. Khalil
Keyword(s):  
Acetic Acid ◽  
Graphene Oxide ◽  
Ethylene Diamine ◽  
Functionalized Graphene ◽  
Efficient Removal ◽  
Functionalized Graphene Oxide

Polymer Functionalized Graphene Oxide: A Versatile Nanoplatform for Drug/Gene Delivery

2015 ◽  
Vol 19 (18) ◽  
pp. 1828-1837 ◽  
Author(s):  
George V. Theodosopoulos ◽  
Panayiotis Bilalis ◽  
Georgios Sakellariou
Keyword(s):  
Graphene Oxide ◽  
Gene Delivery ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide
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