TỔNG HỢP XANH NANO Ag-ZnO BẰNG DỊCH CHIẾT NGÓ SEN ỨNG DỤNG LÀM VẬT LIỆU XÚC TÁC QUANG HÓA XỬ LÝ DƯ LƯỢNG KHÁNG SINH CIPROFLOXACIN

Tóm tắt

In Vietnam, the form of aquaculture in ponds and lakes is very popular and developed in many
localities across the country. In this context, untreated antibiotic residues could lead to the risk of
water pollution, impacting indirectly on aquatic life and human health. In recent years, ZnO-based
materials synthesized by a green route using plant extracts have attracted a lot of attention from
scientists in the photocatalytic application for the treatment of wastewater pollution thanks to many
advantages such as low cost, high photocatalytic efficiency, chemical resistance and environmental
friendliness. In this work, we present a green simple method to synthesize Ag-ZnO nanocomposite with
a particle diameter in the range of 50-100 nm using the aqueous extract from Nodus Rhizomatis Loti
for Ciprofloxacin treatment under the irradiation of visible light. The morphology and structure of the
biosynthesized Ag-ZnO were analyzed by X-ray diffraction methods (XRD), scanning electron
microscopy (SEM), fourie transform infrared spectroscopy (FTIR), energy dispersive X-ray analysis
and differential thermal analysis. The results of evaluating the ability of Ag-ZnO in the degradation of
Ciprofloxacin using UV-Vis method showed that the biosynthesized Ag-ZnO works 23.7% more
efficiently when illuminated.