The synthesis of metal nanoparticles through a green method is a rapid biogenic and offers few advantages over the common chemical and physical procedures, as it is an easy and fast, eco-friendly and does not involve any costly chemicals as well as hazardous chemicals. In this study, we report synthesis of CuO NPs by using Drypetes sepiaria Leaf extract (DSLE). The synthesized CuO NPs was characterization using different technique such as UV, IR, XRD, and TEM. The formation of CuO NPs was confirmed by Surface Plasmon Resonance (SRP) at 298 nm using UV-Vis spectroscopy. Crystallinity of CuO NPs was confirmed by powder XRD and the characteristic functional groups of synthesised CuO NPs were identified by FTIR spectroscopy. The size and shape of the synthesized CuO NPs was determined by transmission electron microscopy (TEM). In addition, we performed photocatalytic activity to examine the photocatalytic degradation efficiency of CuO NPs to Congo Red. The colloidal solutions of CuO NPs showed good catalytic activity. © Published under licence by IOP Publishing Ltd.

Badal Kumar Mandal

Department of Chemistry

School of Advanced Sciences

Vellore Campus

Narasaiah P

Sarada N.C.

Fulltext

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

&nbsp;

&nbsp;

VIT University

Biosynthesis of Copper Oxide nanoparticles from Drypetes sepiaria Leaf extract and their catalytic activity to dye degradation

IOP Conference Series: Materials Science and Engineering

Research on Chemical Intermediates

ZnS nanoparticles capped with watermelon rind extract and their potential application in dye degradation

Biogenic silver nanoparticles (AgNPs) synthesized by Sterculia acuminata fruit extract was characterized by UV-vis spectroscopy, XRD, TEM, FTIR, PSA, and Zeta potential studies. Formation of AgNPs is initially confirmed by UV-vis spectroscopic studies with the characteristic band at 426 nm. TEM and XRD reports revealed that AgNPs are highly crystalline and spherical in shape with average particle size of ∼10 nm. PSA studies revealed that average particle size of AgNPs is 10.3 nm which is in close agreement with TEM reports. FTIR studies indicated the presence of different functional groups on the surface of the AgNPs indicating the stability of AgNPs by capping of biomolecules onto the surface which is further supported by zeta potential studies with the negative zeta potential value of -39.2 mV. Further catalytic efficiency synthesized AgNPs was evaluated for the reduction/degradation of various organic dyes such as 4-nitrophenol (4-NP), methylene blue (MB), methyl orange (MO), phenol red (PR) and direct blue 24 (DB24). It was found that degradation of MB and DB24 was faster than that of other dyes. This is the first report on degradation of organic dyes PR and DB24 using NaBH4 as reducing agent in the presence of catalytic amount of AgNPs. © 2015 Elsevier Ltd. All rights reserved.

Journal of Environmental Chemical Engineering

Biofabricated silver nanoparticles as green catalyst in the degradation of different textile dyes

The availability of S− groups with varying volume and pH of diastase tunes the size of AuNPs.

RSC Advances

Diastase assisted green synthesis of size-controllable gold nanoparticles

Water Science

Removal of methylene blue and rhodamine B from water by zirconium oxide/graphene

Journal	Data powered by TypesetIOP Conference Series: Materials Science and Engineering
Publisher	Data powered by TypesetIOP Publishing
ISSN	1757-8981
Open Access	Yes