• Chỉ mục bởi
  • Năm xuất bản

Green synthesis of zero-valent iron nanoparticles by Cleistocalyx operculatus leaf extract using microfluidic device for degradation of the Rhodamine B dye

Van Hoang Institute of New Technology, 17, Hoang Sam, Nghia Do Cau Giay, Hanoi, Viet Nam|
Duong Duc (57193129002) | Vu (57205433167); La | Trung-Dung (57791340500); Ngoc Toan | Gyu Man (57741133400); Dang Institute of Chemistry and Materials, 17, Hoang Sam, Nghia Do Cau Giay, Hanoi, Viet Nam| Le (57222085292); Kim School of Mechanical Engineering, Kyungpook National University, Daegu, South Korea| Nguyen (57378193500); Nguyen-Thi School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi, Viet Nam|

Advances in Natural Sciences: Nanoscience and Nanotechnology Số 4, năm 2022 (Tập 13, trang -)

ISSN: 20436262

ISSN: 20436262

DOI: 10.1088/2043-6262/aca023

Tài liệu thuộc danh mục:



Từ khóa: Crystallinity; Efficiency; Fluidic devices; Iron; Metal ions; Microfluidics; Pollution; Rhodium compounds; Scanning electron microscopy; Synthesis (chemical); Cleistocalyx operculatus; Dye degradation; Environmental pollutions; Green synthesis; Leaf extracts; Microfluidics devices; Reductants; Removal efficiencies; Rhodamine B dye; Zero-valent iron nanoparticles; Nanoparticles
Tóm tắt tiếng anh
Environmental pollution, in particular, the wastewater from the textile and dyeing production process is causing serious issues for the ecosystem and humans. It has been well-demonstrated that zero-valent iron nanoparticles (nZVI) are one of the most promising materials in the treatment of environmental pollutants. In this work, the Cleistocalyx operculatus leaf extract was employed as a green reductant for the synthesis of the nZVIs nanoparticles from iron ions precursor. Notably, a microfluidic device was also used as micro-reactor for the synthesis process of the nanoparticles, making it easy to control and optimise the morphologies and sizes of nZVI. The morphology and crystallinity of nZVI were characterised by scanning electron microscopy (SEM) and x-ray diffraction (XRD), respectively. The nZVIs prepared in a microfluidic reactor using Cleistocalyx operculatus leaf extract as reductant were in plate-like structure with the thickness of around 5 nm and the diameter in range of hundred nanometers. The removal efficiency of Rhodamin B (RhB) dye by the prepared nZVI was determined by ultraviolet-visible (UV-vis) spectroscopy. The results showed that the nZVI revealed high removal performance toward RhB with removal efficiency of higher than 90% after 30 min of treatment. The effects of dye’s concentration, time, and pH solution on the treatment performance of RhB were also studied. © 2022 Vietnam Academy of Science & Technology.

Xem chi tiết