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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Tác giả: Thị Tâm Khiếu, Thị Kim Ngân Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2022

Mô tả vật lý: tr.410-416

Bộ sưu tập: Báo, Tạp chí

ID: 332281

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Green synthesis of silver nanoparticles (AgNPs) has been extensively studied by using a variety of plant extracts for applications in catalysis, biomedical and biosensors. In this paper, the AgNPs were successfully synthesized via an easy and eco-friendly technique using peel extract of Citrus maxima as reducing, capping, and stabilizing agents for the first time. The formation, structure and morphology of biosynthesized AgNPs were characterized using Ultraviolet-visible spectroscopy (UV-Vis), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. The photocatalytic activities of the synthesized AgNPs were investigated by degrading the methylene blue (MB), and Rhodamine B (RhB) dye solutions under sunlight in the presence of 10 mg AgNPs photocatalyst within 120 min irradiation. The percentage degradation of MB, and RhB dye solutions was found to be 84.68, and 77.84%, respectively. These results confirmed that the Citrus maxima could be a lowcost, nontoxic and eco-friendly natural resource for the synthesis of AgNPs, which might be useful for efficient adaptable photodegradation of organic dyes in industrial wastewater.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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