Novel, Biosynthesis of Palladium Nanoparticles using Strychnos Potatorum Polysaccharide as a Green sustainable approach; and their effective Catalytic Hydrogenation of 4-Nitrophenol

Kasula Nagaraja; D Hemalatha; Sabah Ansar; K S V Krishna Rao; Oh Tae Hwan

doi:10.1016/j.ijbiomac.2023.126983

Novel, Biosynthesis of Palladium Nanoparticles using Strychnos Potatorum Polysaccharide as a Green sustainable approach; and their effective Catalytic Hydrogenation of 4-Nitrophenol

Int J Biol Macromol. 2023 Dec 31;253(Pt 4):126983. doi: 10.1016/j.ijbiomac.2023.126983. Epub 2023 Sep 21.

Authors

Kasula Nagaraja¹, D Hemalatha², Sabah Ansar³, K S V Krishna Rao⁴, Oh Tae Hwan⁵

Affiliations

¹ Polymer Biomaterial Design and Synthesis Laboratory, Department of Chemistry, Yogi Vemana University, Kadapa, Andhra Pradesh 516005, India; School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea. Electronic address: nagarajakasula33@yu.ac.kr.
² Polymer Biomaterial Design and Synthesis Laboratory, Department of Chemistry, Yogi Vemana University, Kadapa, Andhra Pradesh 516005, India.
³ Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia.
⁴ Polymer Biomaterial Design and Synthesis Laboratory, Department of Chemistry, Yogi Vemana University, Kadapa, Andhra Pradesh 516005, India. Electronic address: ksvkr@yogivemanauniversity.ac.in.
⁵ School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea. Electronic address: taehwanoh@ynu.ac.kr.

PMID: 37739284
DOI: 10.1016/j.ijbiomac.2023.126983

Abstract

In the current study, we successfully used strychnos potatorum polysaccharide through autoclaving to synthesize palladium nanoparticles in a green, sustainable process. These polysaccharide act as a stabilizing, capping, and reducing agent. It also used various analytical characterizations, including UV-Visible spectroscopy, FT-IR spectroscopy, X-Ray diffraction (XRD), Scanning electron microscopy (FE-SEM), EDAX, and X-ray photoelectron spectroscopy (XPS), TEM and gel permeation chromatography (GPC) are used to analyze biosynthesized pallidum nanoparticles (PdNPs). The surface plasmon resonance (SPR) band at 276 nm and UV-visible spectroscopy revealed the presence of the generated PdNPs. The XRD data show that PdNPs have crystalline behavior and a pristine face-centered cubic (FCC) structure. The PdNPs were successfully developed by catalytic reduction of 4-nitrophenol (4-NP). The catalytic activity and reusability of the environmentally friendly PdNPs catalyst were demonstrated by achieving a remarkable transformation of 95 % nitrophenol to 4-aminophenol after five cycles. The reaction rate constant (k) for the degradation of 4-nitrophenol (4-NP) using SP-PdNPs as a catalyst is 0.1201 min^-1 and R² 0.9867, with a normalized rate constant of (K_nor = K/m) of 7.206 s^-1 mM^-1. These findings provide fundamental knowledge of the catalytic process governing the hydrogenation of p-nitrophenol, which will help designers of effective catalysts. An innovative and affordable technique for creating PdNPs that are environmentally acceptable and can be utilized as effective catalysts in environmental applications is the use of strychnos potatorum gum polysaccharide. The green-synthesized PdNPs can be used for pollutant remediation, including pharmaceutical, domestic, heavy metal, industrial, and pesticide pollutants.

Keywords: Catalytic reduction; Environmentally eco-friendly; Green synthesis; Natural polysaccharide; Strychnos Potatorum.

MeSH terms

Catalysis
Hydrogenation
Metal Nanoparticles* / chemistry
Nitrophenols / chemistry
Palladium / chemistry
Polysaccharides
Spectroscopy, Fourier Transform Infrared
Strychnos*

Substances

4-nitrophenol
Palladium
Nitrophenols
Polysaccharides