Graphene oxide modified membrane for highly efficient wastewater treatment by dynamic combination of nanofiltration and catalysis

doi:10.1016/j.jhazmat.2020.122774

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Graphene oxide modified membrane for highly efficient wastewater treatment by dynamic combination of nanofiltration and catalysis
	Zhong, Yun; Mahmud, Sakil; He, Zijun; Yang, Yang; Zhang, Zhe; Guo, Fei; Chen, Zhihong; Xiong, Zhu; Zhao, Yubao
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2020
卷号	397
关键词	ULTRAFILTRATION MEMBRANE CROSS-LINKING SEPARATION NANOPARTICLES REJECTION DYES FLUX DEGRADATION REMOVAL LAYER
DOI	10.1016/j.jhazmat.2020.122774
英文摘要	Stacked graphene oxide (GO) nano-sheets with plentiful nanopores incorporated onto polymeric membrane are promising for water purification. However, maintaining high water permeability without sacrificing separation efficiency remains a challenge. Delamination of the GO layer from the membrane surface is another bottleneck affecting the efficiency of the material. To solve those problems, we immobilized a chemically crosslinked GO composite layer with enlarged interlayer space on the surface of a novel catalytic membrane, which served as the support. The modified GO nanosheets-coated catalytic membranes showed excellent separation robustness with withstanding strong lateral shear force during 6 h filtration in a crossflow model. The as-prepared membrane showed high removal efficiencies to Congo red and Basic blue (99 % and 96 %, respectively) due to the surface-coated GO composite layer. Furthermore, while launching the catalytic function of the membrane with a trace amount of reducing agent (NaBH4), the GO-coated composite membrane successfully purified 50 ppm Methyl orange, 50 ppm Methylene blue, 50 ppm Rhodamine B and 0.272 mmol/L 4-Nitrophenol to break through the membrane rejection limitation of 500 Mw. Combining nano-filtration and catalysis, the GO-coated composite membranes showed great potential for the continuous purification of chemically contaminated water.
学科主题	Engineering ; Environmental Sciences & Ecology
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20437]
专题	2020专题
作者单位	Xiong, Z (corresponding author), Guangzhou Univ, Inst Environm Res Greater Bay, Key Lab Water Qual & Conservat Pearl River Delta, Minist Educ, Guangzhou 510006, Peoples R China.
推荐引用方式 GB/T 7714	Zhong, Yun,Mahmud, Sakil,He, Zijun,et al. Graphene oxide modified membrane for highly efficient wastewater treatment by dynamic combination of nanofiltration and catalysis[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,397.
APA	Zhong, Yun.,Mahmud, Sakil.,He, Zijun.,Yang, Yang.,Zhang, Zhe.,...&Zhao, Yubao.(2020).Graphene oxide modified membrane for highly efficient wastewater treatment by dynamic combination of nanofiltration and catalysis.JOURNAL OF HAZARDOUS MATERIALS,397.
MLA	Zhong, Yun,et al."Graphene oxide modified membrane for highly efficient wastewater treatment by dynamic combination of nanofiltration and catalysis".JOURNAL OF HAZARDOUS MATERIALS 397(2020).