Bài viết trình bày việc tổng hợp hydrogel dựa trên CMC và AA bằng kỹ thuật bức xạ dùng để hấp phụ chất màu MB nhằm góp phần khẳng định khả năng ứng dụng đa dạng trong việc xử lý các chất gây ô nhiễm của vật liệu CMC/AA. | TNU Journal of Science and Technology 227 16 189 - 196 RADIATION SYNTHESIS OF CMC AA HYDROGEL AND THEIR APPLICATION FOR THE TREATMENT OF METHYLENE BLUE Pham Bao Ngoc Nguyen Minh Hiep Nguyen Ngoc Thuy Trang Tran Thu Hong Le Van Toan Le Xuan Cuong Radiation Technology and Biotechnology Center Nuclear Research Institute ARTICLE INFO ABSTRACT Received 30 9 2022 The adsorption of methylene blue MB from aqueous solution was carried out by using hydrogel CMC AA. Hydrogels were synthesized Revised 22 11 2022 by grafting acrylic acid AA onto carboxymethyl cellulose CMC Published 22 11 2022 using direct radiation grafting technique. The factors affecting the gel content and swelling behavior of the hydrogel were investigated. The KEYWORDS result indicated that gel content of prepared hydrogel obtained maximum at the radiation dose of 30 kGy and increased with increased Adsorption concentration of CMC. The swelling properties of hydrogels decreased Hydrogel with increased radiation dose. Fourier transform infrared spectroscopy FTIR and scanning electron microscopy SEM were used to Radiation polymerization characterize the structure of the hydrogel. The influence of various Methylene blue experimental factors such as contact time initial dye concentration and Carboxymethyl cellulose pH of dye solution was investigated. Maximum MB removal was observed at pH and contact time of 150 min. In addition the adsorption data fit well the Langmuir adsorption model with the maximum sorption capacity of mg g and followed the pseudo- second-order kinetics. NGHIÊN CỨU TỔNG HỢP VẬT LIỆU HYDROGEL CMC AA BẰNG KỸ THUẬT GHÉP BỨC XẠ VÀ ỨNG DỤNG XỬ LÝ XANH METHYLEN Phạm Bảo Ngọc Nguyễn Minh Hiệp Nguyễn Ngọc Thùy Trang Trần Thu Hồng Lê Văn Toàn Lê Xuân Cường Trung tâm Công nghệ bức xạ và Công nghệ sinh học Viện Nghiên cứu hạt nhân THÔNG TIN BÀI BÁO TÓM TẮT Ngày nhận bài 30 9 2022 Khả năng hấp phụ xanh methylen MB trong dung dịch nước của hydrogel CMC AA đã được nghiên cứu. Hydrogel tổng
