This article describes the fabrication of electrochemical devices for detection a key environmental pollutant, 4-Nitrophenol (4-NPh). 4-NPh is requirement synthesis organophosphate pesticides. These pesticides are mostly used in agricultural sector to obtain high yield products. The use field results poisonous levels this compound soil and water. Different techniques have been its transformatio...

One-pot synthesis of basic copper carbonate/AlOOH microspheres with hierarchical structure in the absence and presence of humic acid is presented. The synthesized microspheres are characterized by SEM, EDS, TEM, XRD, FT-IR and TGA data. The catalytic ability of these hierarchical structures has been evaluated with reduction of 4-nitrophenol to 4-aminophenol with excess amount of NaBH4 as a mode...

 In this paper, a novel ternary nanocomposite namely reduced graphene oxide/hydroxyapatite/silver (rGO/HAP/Ag) was prepared by a simple hydrothermal method using graphene oxide nanosheets, Ca(NO3)2, (NH4)2HPO4, and AgNO3 as starting materials. The as-prepared nanocomposite was characterized by using various photophysical techniqu...

 In this paper, a novel ternary nanocomposite namely reduced graphene oxide/hydroxyapatite/silver (rGO/HAP/Ag) was prepared by a simple hydrothermal method using graphene oxide nanosheets, Ca(NO3)2, (NH4)2HPO4, and AgNO3 as starting materials. The as-prepared nanocomposite was characterized by using various photophysical techniqu...

Gold nanoparticles were synthesized using a water extract of Artemisia capillaris (AC-AuNPs) under different extract concentrations, and their catalytic activity was evaluated in a 4-nitrophenol reduction reaction in the presence of sodium borohydride. The AC-AuNPs showed violet or wine colors with characteristic surface plasmon resonance bands at 534~543 nm that were dependent on the extract c...

Quantum clusters (QCs) of silver such as Ag7(H2MSA)7, Ag8(H2MSA)8 (H2MSA, mercaptosuccinic acid) were synthesized by the interfacial etching of Ag nanoparticle precursors and were loaded on metal oxide supports to prepare active catalysts. The supported clusters were characterized using high resolution transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectrosc...

An in-situ template formation method is reported for the synthesis of hierarchically porous carbon (PC), with La and Fe nitrates as precursors citric acid precursor. During carbonization, oxides, originated from metal nitrates, move together react each other to form LaFeO3 particles, serving hard PC. Thus, three types pores are generated in PC through (1) release gases, (2) movement oxides (3) ...