Preparation of modified microcrystalline cellulose based composite and its catalytic degradation performance on methylene blue

被引：0
作者：
Chen J. [1 ]
Ji D. [1 ]
Lin Z. [1 ]
Yang G. [1 ]
Hou H. [1 ]
机构：
[1] State Key Laboratory of Biobased Material and Green Papermaking/Key Lab of Pulp & Paper Science and Technology of Education Ministry of China, Qilu University of Technology, Shandong Academy of Sciences, Ji'nan
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2020年 / 37卷 / 12期
关键词：
3-chloropropyltriethoxysilane; Catalytic; Degradation; Diethanolamine; Methylene blue; Microcrystalline cellulose;
D O I：
10.13801/j.cnki.fhclxb.20200416.001
中图分类号：
学科分类号：
摘要：
Microcrystalline cellulose (MCC) was used as raw materials and loaded with CuO nanoparticles (CuO NPs). Then, 3-chloropropyltrimethoxysilane (CPTES) and diethanolamine (DEA) were added for grafting reaction to prepare CuO NPs@MCC-Si-N(OH)2. CuO NPs@MCC-Si-N(OH)2 was characterized with FTIR, XRD, thermal gravimetric analysis and morphology analysis. The results show that CuO NPs can be successfully loaded on the surface of MCC, and silane coupling agent can improve the dispersion of the composite and the ability to graft amine groups, thus enhancing its catalytic activity, and increasing the redox reaction efficiency of sodium borohydride (NaBH4) and methylene blue (MB). Hence, MB stain is degraded rapidly. It's also found that CuO NPs@MCC-Si-N(OH)2 with 20wt% DEA shows the best catalytic effect, and the highest removal efficiency is 99.71% after treating 30 mL MB solution (3 mmol/L) with 30 mg CuO NPs@MCC-Si-N(OH)2 and 10 mg NaBH4 within 5 min, and the removal rate is 93.24% after five cycles. Copyright ©2020 Acta Materiae Compositae Sinica. All rights reserved.
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页码：3184 / 3193
页数：9
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