Green synthesized AgNPs decorated on Ketjen black for enhanced catalytic dye degradation
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Green synthesized AgNPs decorated on Ketjen black for enhanced catalytic dye degradation Rajavaram Ramaraghavulu1 · V. Koteswara Rao2 · K. C. Devarayapalli3 · Kisoo Yoo3 · P. C. Nagajyothi3 · Jaesool Shim3 Received: 20 July 2020 / Accepted: 29 September 2020 © Springer Nature B.V. 2020
Abstract The green synthesis of nanoparticles using plant-based materials as an alternative to chemical and physical routes provides economic and environmental benefits. In the present study, silver nanoparticles (AgNPs) were fabricated using Pseudocydonia sinensis fruit extract. The fabricated NPs were then decorated on commercial Ketjen black-300 (AgNPs@KB-300) and Ketjen black-600 (AgNPs@ KB-600). The synthesized materials were characterized via XRD, FTIR, XPS, SEM-EDX, and HRTEM studies. The SEM and HR-TEM results revealed that the synthesized AgNPs were spherical and successfully decorated on KB-300 and KB-600. Additionally, the catalytic ability of the synthesized samples during the degradation of methyl orange in the presence of N aBH4 was studied. Notably, the catalytic activity of AgNPs@ KB-600 was higher than that of AgNPs@ KB-300. Keywords Green synthesis · AgNPs · Ketjen black · Methyl orange · Catalytic activity
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s1116 4-020-04290-w) contains supplementary material, which is available to authorized users. * P. C. Nagajyothi [email protected] * Jaesool Shim [email protected] 1
Department of Humanities and Sciences, Annamacharya Institute of Technology and Sciences, Rajampet, Kadapa 516126, India
2
Korea Center for Artificial Photosynthesis, Department of Chemistry, Sogang University, Seoul 04107, South Korea
3
School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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Introduction Nowadays, it is becoming increasingly crucial to ensure that our environment is pollution-free. Point source pollution occurs mainly from municipal wastewater treatment plants and industrial effluents. The discharge of industrial effluents into water bodies has harmful effects on humans, animals, and aquatic life [1]. Methyl orange (C14H14N3NaO3S), is an anionic dye that is extensively used in dyeing, textile, printing, and pharmaceutical industries [2, 3]. When oral consumption, it is toxic as well as carcinogenic owing to the presence of nitrogen [4]. Various chemical, physical, and biological methods are used for the degradation of these dyes. However, the degradation of dyes using green synthesized NPs as a catalyst in the presence of N aBH4 is an eco-friendly manner. Among various metal NPs, silver nanoparticles (AgNPs) exhibit high catalytic activity owing to their size and large surface to volume ratio [5]. Several methods have been used to synthesize of AgNPs. These include chemical reduction [6], microwave synthesis [7], photochemical synthesis [8], reverse microemulsion polymerization [9], electrochemical [10], biological synthesis using ba
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