@article{ART003087319},
author={Akhil Syed and Kumar Porala Jayanth and Mosali Venkata Sai Sriram and Dutt V. G. Vasavi and Kasturi Satish and Mullamuri Bhanu and Puvvada Nagaprasad and Panigrahi Pravas Kumar and Chava Rama Krishna and Chandu Basavaiah},
title={Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite},
journal={Carbon Letters},
issn={1976-4251},
year={2024},
volume={34},
number={4},
pages={1207-1218},
doi={10.1007/s42823-023-00684-z}
TY - JOUR
AU - Akhil Syed
AU - Kumar Porala Jayanth
AU - Mosali Venkata Sai Sriram
AU - Dutt V. G. Vasavi
AU - Kasturi Satish
AU - Mullamuri Bhanu
AU - Puvvada Nagaprasad
AU - Panigrahi Pravas Kumar
AU - Chava Rama Krishna
AU - Chandu Basavaiah
TI - Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite
JO - Carbon Letters
PY - 2024
VL - 34
IS - 4
PB - Korean Carbon Society
SP - 1207
EP - 1218
SN - 1976-4251
AB - Integration of noble metals on graphene is renowned for their catalytic and antioxidant prowess. However, utilization of toxic chemicals in the synthesis creates environmental pollution and poisonous nature of chemically synthesized materials. To address this, an economical and eco-friendly method for synthesizing graphene-gold (BRG-Au) nanocomposite by anchoring gold nanoparticles (Au NPs) onto reduced graphene oxide sheets using betel leaf extract as a reducing and stabilizing agent is presented. Comprehensive structural characterizations through UV–Visible, Raman, FT-IR, and XRD analyses confirm the successful formation of the BRG-Au nanocomposite. Morphological assessments utilizing FE-SEM and TEM techniques revealed the presence of transparent, twinkling graphene sheets embellished with 20 to 60 nm of Au NPs in various shapes, including spherical, triangular, pentagonal, circular, and trapezoids. The catalytic and antioxidant activities of the BRG-Au nanocomposite were thoroughly evaluated. In catalytic trials, the nanocomposite exhibited remarkable efficiency in the reduction of 4-nitrophenol to 4-aminophenol, accomplishing this transformation within a mere 30 min during the initial cycle and maintaining stable catalytic performance over three consecutive cycles. Additionally, antioxidant analyses employing Total Antioxidant Activity and 2,2-diphenyl-1-picrylhydrazyl methods demonstrated that BRG-Au nanocomposite possessed equal or superior antioxidant activity than the ascorbic acid standard. This research thus underscores the promising potential of environmentally benign synthesis method for graphene-gold nanocomposite with enhanced catalytic and antioxidant properties.
KW - Antioxidant activity Catalysis Graphene Green synthesis Nanocomposite 4-nitrophenol
DO - 10.1007/s42823-023-00684-z
ER -
Akhil Syed, Kumar Porala Jayanth, Mosali Venkata Sai Sriram, Dutt V. G. Vasavi, Kasturi Satish, Mullamuri Bhanu, Puvvada Nagaprasad, Panigrahi Pravas Kumar, Chava Rama Krishna and Chandu Basavaiah. (2024). Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite. Carbon Letters, 34(4), 1207-1218.
Akhil Syed, Kumar Porala Jayanth, Mosali Venkata Sai Sriram, Dutt V. G. Vasavi, Kasturi Satish, Mullamuri Bhanu, Puvvada Nagaprasad, Panigrahi Pravas Kumar, Chava Rama Krishna and Chandu Basavaiah. 2024, "Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite", Carbon Letters, vol.34, no.4 pp.1207-1218. Available from: doi:10.1007/s42823-023-00684-z
Akhil Syed, Kumar Porala Jayanth, Mosali Venkata Sai Sriram, Dutt V. G. Vasavi, Kasturi Satish, Mullamuri Bhanu, Puvvada Nagaprasad, Panigrahi Pravas Kumar, Chava Rama Krishna, Chandu Basavaiah "Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite" Carbon Letters 34.4 pp.1207-1218 (2024) : 1207.
Akhil Syed, Kumar Porala Jayanth, Mosali Venkata Sai Sriram, Dutt V. G. Vasavi, Kasturi Satish, Mullamuri Bhanu, Puvvada Nagaprasad, Panigrahi Pravas Kumar, Chava Rama Krishna, Chandu Basavaiah. Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite. 2024; 34(4), 1207-1218. Available from: doi:10.1007/s42823-023-00684-z
Akhil Syed, Kumar Porala Jayanth, Mosali Venkata Sai Sriram, Dutt V. G. Vasavi, Kasturi Satish, Mullamuri Bhanu, Puvvada Nagaprasad, Panigrahi Pravas Kumar, Chava Rama Krishna and Chandu Basavaiah. "Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite" Carbon Letters 34, no.4 (2024) : 1207-1218.doi: 10.1007/s42823-023-00684-z
Akhil Syed; Kumar Porala Jayanth; Mosali Venkata Sai Sriram; Dutt V. G. Vasavi; Kasturi Satish; Mullamuri Bhanu; Puvvada Nagaprasad; Panigrahi Pravas Kumar; Chava Rama Krishna; Chandu Basavaiah. Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite. Carbon Letters, 34(4), 1207-1218. doi: 10.1007/s42823-023-00684-z
Akhil Syed; Kumar Porala Jayanth; Mosali Venkata Sai Sriram; Dutt V. G. Vasavi; Kasturi Satish; Mullamuri Bhanu; Puvvada Nagaprasad; Panigrahi Pravas Kumar; Chava Rama Krishna; Chandu Basavaiah. Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite. Carbon Letters. 2024; 34(4) 1207-1218. doi: 10.1007/s42823-023-00684-z
Akhil Syed, Kumar Porala Jayanth, Mosali Venkata Sai Sriram, Dutt V. G. Vasavi, Kasturi Satish, Mullamuri Bhanu, Puvvada Nagaprasad, Panigrahi Pravas Kumar, Chava Rama Krishna, Chandu Basavaiah. Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite. 2024; 34(4), 1207-1218. Available from: doi:10.1007/s42823-023-00684-z
Akhil Syed, Kumar Porala Jayanth, Mosali Venkata Sai Sriram, Dutt V. G. Vasavi, Kasturi Satish, Mullamuri Bhanu, Puvvada Nagaprasad, Panigrahi Pravas Kumar, Chava Rama Krishna and Chandu Basavaiah. "Evaluation of the catalytic and antioxidant activity of in situ green synthesized graphene-gold nanocomposite" Carbon Letters 34, no.4 (2024) : 1207-1218.doi: 10.1007/s42823-023-00684-z
