Abstract
In this work, nanohybrid of zinc oxide/ cellulose nanocrystals (ZnO/CNC) was successfully prepared by using a low cost and green method for photocatalytic degradation of methylene blue (MB). CNC had been derived through the hydrolysis reaction by citric/hydrochloric acid from the pure cellulose isolated from Vietnamese Nypa fruticans trunk. The obtained CNC with carboxyl groups could act as a stabilizing and supporting agent to anchor ZnO nanoparticles. The chemical and crystal structures, morphology, thermal and photocatalytic properties of the ZnO/CNC nanohybrid were characterized by FESEM, FTIR, XRD, FESEM, BET, EDX, TGA, DRS and photocatalytic tests. Analyses of FTIR spectra, XRD, and FESEM indicated that the ZnO nanocrystals with the size of 50 nm formed and loaded on the surface of CNC. The TGA analysis demonstrated that the ZnO loading sample (ZnO/CNC) had the thermal degradation onset temperature higher than that of neat CNC. ZnO/CNC cuold be absorpted ultraviolet light and have high value of specific surface area (SBET), based on the DRS spectra and the nitrogen adsorption – desorption isotherms analysis, respectively. ZnO/CNC displayed more photocatalytic activity than pure ZnO upon degradation of methylene blue due to strong interaction between the CNC and ZnO nanoparticles. The maximum degradation of MB was about 95% in 150 minutes for the ZnO/CNC.
Highlights
Mẫu sau khi xử lý acid, tiếp tục được khuấy trong dung dịch peroxyformic acid_PFA ở 80oC với tốc độ khuấy 200 vòng/phút bằng máy khuấy đũa IKA RW 20 digital trong 2 giờ
Research ArticleVu Nang An1,2,*, Tran Mai Anh[1,2], Nguyen Tuyet Nghi[1,2], Lam Ngoc My Duyen[1,2], Le Pham Nam Phong[1,2], Ha Thuc Chi Nhan[1,2], Le Van Hieu[1,2]
Summary
Vũ Năng An1,2,*, Trần Mai Anh[1,2], Nguyễn Tuyết Nghi[1,2], Lâm Ngọc Mỹ Duyên[1,2], Lê Phạm Nam Phong[1,2], Hà Thúc Chí Nhân[1,2], Lê Văn Hiếu[1,2]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Science and Technology Development Journal - Natural Sciences
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
