Vietnam Journal of Catalysis and Adsorption

RESEARCH PAPER

Corrected Proofs

Chế tạo và xác định các đặc trưng nano perovskit LaFe1-xMnxO3 (0≤ x ≤1) làm vật liệu hấp phụ xử lý ô nhiễm môi trường nước
Preparation and characterization of LaFe1-xMnxO3 perovskites (0≤ x ≤1) nano scale as an adsorbent to treat water pollution

Vũ Thế NinhThis email address is being protected from spambots. You need JavaScript enabled to view it., Phạm Ngọc Chức, Lưu Minh Đại

Viện Khoa học vật liệu, Viện Hàn lâm Khoa học và Công nghệ Việt Nam

ABSTRACT
The nanoparticle crystals of perovskite oxides LaFe1-xMnxO3 was prepared by the PVA (polyvinyl alcohol) gel combustion method to determine the adsorption capacity of Pb2+, Cd2+, Fe3+ ions from solution was investigated. Characteristics of fabrication materials are determined by the X-ray diffraction (XRD), scanning electron microscopy (SEM) and Brunaure-Emmet-Teller (BET), vibration sampling magnetometer (VSM), point of zero charge (PPZC) measurements. The results showed that the single crystalline form of perovskite oxides LaFe1-xMnxO3 was formed by the formation of a solid solution between perovskite LaFeO3 and perovskite LaMnO3 with all x (0 ≤ x ≤ 1) values. The results of the adsorption capacity show that the perovskite with the formula LaFe0.7Mn0.3O3 gives the best performance for Pb2+ ions and the perovskite with the formula LaFe0.7Mn0.3O3 gives the best performance for Cd2+, Fe3+ ions. The values saturation magnetization of LaFe1-xMnxO3 perovskite from 6.5 emu.g-1 to 12.0 emu.g-1.

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