Photocatalytic degradation of Rhodamine B (RhB) dye in waste water and enzymatic inhibition study using cauliflower shaped ZnO nanoparticles synthesized by a novel One-pot green synthesis method

Rajendrachari, Shashanka; Taslimi, Parham; Karaoğlanlı, Abdullah Cahit; Uzun, Orhan; Alp, Emre; Jayaprakash, Gururaj Kudur

doi:10.1016/j.arabjc.2021.103180

Cited by 133 publications

(37 citation statements)

References 61 publications

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“…Cauliflower-shaped ZnO NPs were developed using Alchemilla vulgaris (Rajendrachari et al, 2021). The band gap of ZnO NPs was studied by UV-vis spectroscopy via Tauc's method, and it was determined to be 3.27 eV.…”

Section: Some Case Studies Of Photocatalytic Activity Of Green Synthe...mentioning

confidence: 99%

Photocatalytic Activity Induced by Metal Nanoparticles Synthesized by Sustainable Approaches: A Comprehensive Review

et al. 2022

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Nanotechnology is a fast-expanding area with a wide range of applications in science, engineering, health, pharmacy, and other fields. Among many techniques that are employed toward the production of nanoparticles, synthesis using green technologies is the simplest and environment friendly. Nanoparticles produced from plant extracts have become a very popular subject of study in recent decades due to their diverse advantages such as low-cost synthesis, product stability, and ecofriendly protocols. These merits have prompted the development of nanoparticles from a variety of sources, including bacteria, fungi, algae, proteins, enzymes, etc., allowing for large-scale production with minimal contamination. However, nanoparticles obtained from plant extracts and phytochemicals exhibit greater reduction and stabilization and hence have proven the diversity of properties, like catalyst/photocatalyst, magnetic, antibacterial, cytotoxicity, circulating tumor deoxy ribo nucleic acid (CT-DNA) binding, gas sensing, etc. In the current scenario, nanoparticles can also play a critical role in cleaning wastewater and making it viable for a variety of operations. Nano-sized photocatalysts have a great scope toward the removal of large pollutants like organic dyes, heavy metals, and pesticides in an eco-friendly and sustainable manner from industrial effluents. Thus, in this review article, we discuss the synthesis of several metal nanoparticles using diverse plant extracts, as well as their characterization via techniques like UV–vis (ultraviolet–visible), XRD (X-ray diffraction), SEM (scanning electron microscopy), TEM (transmission electron microscopy), FTIR (Fourier transform infrared spectroscopy), etc., and catalytic activity on various hazardous systems.

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Section: Some Case Studies Of Photocatalytic Activity Of Green Synthe...mentioning

confidence: 99%

Photocatalytic Activity Induced by Metal Nanoparticles Synthesized by Sustainable Approaches: A Comprehensive Review

et al. 2022

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“…synthesized iron NPs (Fe-NPs) using Chlorophytumcomosum extract in 2021, presenting a 77% degradation of MO within 6 h [31]. S. Rajendrachari et.al., also in 2021, used cauliflower to biosynthesize ZnO NPs, managing to degrade 75% RhB within 2 h [32]. As has been disclosed in the literature, various natural stabilizing agents have been used, such as roots, leaves, fruits, and vegetables [33]; however, what has been seldom studied is the use of chili peppers in the green synthesis of ZnO NPs.…”

Section: Introductionmentioning

confidence: 99%

ZnO Semiconductor Nanoparticles and Their Application in Photocatalytic Degradation of Various Organic Dyes

et al. 2021

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The biosynthesis of oxide semiconductor nanoparticles (NPs) using materials found in nature opens a wide field of study focused on sustainability and environmental protection. Biosynthesized NPs have the capacity to eliminate organic dyes, which pollute water and cause severe damage to the environment. In the present work, the green synthesis of zinc oxide (ZnO) NPs was carried out using Capsicum annuum var. Anaheim extract. The photocatalytic elimination of methylene blue (MB), methyl orange (MO), and Rhodamine B (RhB) in UV radiation was evaluated. The materials were characterized by scanning and transmission electron microscopy (SEM and TEM) and SEM-coupled energy dispersive spectroscopy (EDS), attenuated total reflectance-infrared (ATR-IR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Photoluminescence (PL), and ultraviolet-visible spectroscopy (UV-Vis). The TEM analysis showed the NPs have an average size of 40 nm and quasi-spherical shape. ATR-IR showed the ZnO NPs contained functional groups from the extract. The analysis through XRD indicated that the NPs have a hexagonal zincite crystal structure with an average crystallite size of approximately 17 nm. The photoluminescence spectrum (PL) presented an emission band at 402 nm. From the UV-Vis spectra and TAUC model, the band-gap value was found to be 2.93 eV. Finally, the photocatalytic assessment proved the ZnO NPs achieved 100% elimination of MB at 60 min exposure, and 85 and 92% degradation of MO and RhB, respectively, at 180 min. This indicates that ZnO NPs, in addition to using a friendly method for their synthesis, manage to have excellent photocatalytic activity in the degradation of various organic pollutants.

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“…Tuy nhiên, các phương pháp này có khả năng hấp phụ, phân hủy sinh học thấp, chi phí cao; do đó cần phát triển một phương pháp xử lý rẻ tiền, thân thiện với môi trường và tận dụng được nguồn nguyên liệu sẵn có. Gần đây, việc sử dụng các hạt nano để loại bỏ các thuốc nhuộm nguy hại khỏi nước thải đã trở nên quan trọng vì chúng có diện tích bề mặt lớn, tính chất hấp phụ cao, ít cản trở sự khuếch tán và cho thấy tốc độ cân bằng nhanh hơn [4], [7]. Đặc biệt, các hạt AgNPs có kích thước và hình dạng thích hợp, có tỷ lệ diện tích bề mặt trên thể tích cao cho phép chúng hoạt động như chất xúc tác tuyệt vời trong quá trình phân hủy thuốc nhuộm [8].…”

Section: Giới Thiệuunclassified

Tổng Hợp Xanh Nano Bạc Sử Dụng Dịch Chiết Vỏ Bưởi Để Phân Huỷ Quang Xúc Tác Xanh Methylene Và Rhodamine B Dưới Ánh Sáng Mặt Trời

Tâm¹,

Ngân²

2022

TNUJST

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Tổng hợp xanh các hạt nano bạc (AgNPs) đã được nghiên cứu rộng rãi bằng cách sử dụng dịch chiết thực vật để ứng dụng trong xúc tác, y sinh và cảm biến sinh học. Trong bài báo này, lần đầu tiên AgNPs được tổng hợp thành công một cách dễ dàng và thân thiện với môi trường bằng cách sử dụng dịch chiết từ vỏ bưởi làm chất khử, chất làm bền. Sự hình thành, cấu trúc và hình thái của AgNPs được đặc trưng bằng phổ hấp thụ quang (UV-Vis), nhiễu xạ tia X (XRD) và phổ hồng ngoại biến đổi Fourier (FTIR). Khả năng quang xúc tác của AgNPs được khảo sát bằng cách phân hủy thuốc nhuộm xanh methylene (MB) và Rhodamine B (RhB) dưới ánh sáng mặt trời với 10 mg AgNPs trong vòng 120 phút. Hiệu quả phân huỷ thuốc nhuộm MB và RhB lần lượt là 84,68 và 77,84%. Kết quả này khẳng định vỏ bưởi có thể là nguồn tài nguyên thiên nhiên thân thiện với môi trường, không độc hại và có chi phí thấp để tổng hợp AgNPs, hữu ích để phân hủy quang xúc tác thuốc nhuộm hữu cơ trong nước thải công nghiệp.

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Photocatalytic degradation of Rhodamine B (RhB) dye in waste water and enzymatic inhibition study using cauliflower shaped ZnO nanoparticles synthesized by a novel One-pot green synthesis method

Cited by 133 publications

References 61 publications

Photocatalytic Activity Induced by Metal Nanoparticles Synthesized by Sustainable Approaches: A Comprehensive Review

Photocatalytic Activity Induced by Metal Nanoparticles Synthesized by Sustainable Approaches: A Comprehensive Review

ZnO Semiconductor Nanoparticles and Their Application in Photocatalytic Degradation of Various Organic Dyes

Tổng Hợp Xanh Nano Bạc Sử Dụng Dịch Chiết Vỏ Bưởi Để Phân Huỷ Quang Xúc Tác Xanh Methylene Và Rhodamine B Dưới Ánh Sáng Mặt Trời

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