Phạm Trần Bảo Nghi , Trần Bá Huy , Hồ Ngọc Tri Tân Đặng Huỳnh Giao *

* Người chịu trách nhiệm về bài viết: Đặng Huỳnh Giao (email:


This study aims to synthesize a kind of bimetallic Cu/Co zeolitic imidazole frameworks (Cu/ZIF-67) and evaluate the material’s catalytic activity. Cu/ZIF-67 has been successfully synthesized in ethanol solvent by ultrasound method. The synthesized material was analyzed by several advanced analytics methods. The material has a high surface area, with a Brunauer-Emmett-Teller (BET) surface area of 1241.8 m2.g-1, a polyhedral structure, and relatively uniform particle size. In this study, the synthesized Cu/ZIF-67 was used as a potential catalyst for the treatment of malachite green in the presence of hydrogen peroxide. The results showed that malachite green decomposition efficiency was more than 98% at H2O2 concentration of 0.06 M, Cu/ZIF-67 catalyst concentration of 50 mg/L, and the initial malachite green concentration of 50 mg/L for 30 minutes at room temperature.

Keywords: Catalyst, Cu/ZIF-67, hydrogen peroxide, malachite green, zeolitic imidazole frameworks

Tóm tắt

Nghiên cứu này nhằm tổng hợp vật liệu khung lưỡng kim Cu/ZIF-67 và đánh giá khả năng xúc tác của nó. Cu/ZIF-67 được tổng hợp thành công trong dung môi ethanol bằng sóng siêu âm. Vật liệu được phân tích tính chất đặc trưng bằng các phương pháp phân tích hiện đại. Kết quả cho thấy vật liệu có cấu trúc đa diện với kích thước tinh thể đồng đều cùng diện tích bề mặt riêng lớn với diện tích bề mặt Brunauer-Emmett-Teller (BET) là 1241,8 m2.g-1. Bên cạnh đó, vật liệu được đánh giá khả năng xúc tác xử lý malachite green với sự có mặt của hydrogene peroxide. Kết quả cho thấy rằng hiệu suất xử lý malachite green  đạt đến hơn 98% với nồng độ H2O2 là 0,06 M, lượng Cu/ZIF-67 sử dụng là 50 mg/L, nồng độ malachite green ban đầu là 50 mg/L, được xử lý trong 30 phút ở nhiệt độ phòng.

Từ khóa: Cu/ZIF-67, hydrogen peroxide, khung cơ-kim có cấu trúc tương tự zeolite, malachite green, xúc tác

Article Details

Tài liệu tham khảo

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