Recycling of typical difficult-to-treat e-waste: Synthesize zeolites from waste cathode-ray-tube funnel glass

doi:10.1016/j.jhazmat.2016.11.041

GIEC OpenIR > 中国科学院广州能源研究所

	Recycling of typical difficult-to-treat e-waste: Synthesize zeolites from waste cathode-ray-tube funnel glass
	Yao, Zhitong 1; Wu, Daidai 2; Liu, Jie 1; Wu, Weihong 1; Zhao, Hongting 1; Tang, Junhong 1
	2017-02-15
发表期刊	JOURNAL OF HAZARDOUS MATERIALS
卷号	324 页码:673-680
摘要	The disposal of waste cathode ray-tubes (CRTs) from old televisions and discarded computer monitors has become a major environmental concern worldwide. In this work, an open-loop recycling method was developed to synthesize zeolites using CRT funnel glass as the raw material. The effects of hydrothermal temperatures and pressure, n(SiO2/Al2O3) molar ratios and hydrothermal time on the resulting products were investigated. The results indicated that hydrothermal temperatures and pressure played critical roles in zeolite synthesis. Amorphous phases were detected at lower temperatures (80-100 degrees C) and pressure (0.47-1.01 bar) with n(SiO2/Al2O3)=2.0. At the temperature of 110 degrees C (pressure 1.43 bar), NaA formed with a mixture of NaP1 and Faujasite. With further increase in the temperature and pressure, the unstable NaA and Faujasite disappeared, and Hydroxysodalite developed. The influence of n(SiO2/Al2O3) ratios on resulting products revealed a single phase of NaA was formed at the ratio of 1.5 and a mixture of NaA and Faujasite at the ratio of 2.0. Prolonging hydrothermal time, however, could promote zeolite crystallization, and NaA gradually developed with an increase in the time from 2 to 6 h at n(SiO2/Al2O3)=1.5. By comparison, crystallization phases were observed only when the time was longer than 8 h at n(SiO2/Al2O3)=2.0. (C) 2016 Published by Elsevier B.V.
文章类型	Article
关键词	E-waste Cathode Ray-tube Leaded Glass Open-loop Recycling Zeolite Synthesis
WOS标题词	Science & Technology ; Technology ; Life Sciences & Biomedicine
DOI	10.1016/j.jhazmat.2016.11.041
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology
关键词[WOS]	COAL FLY-ASH ; CRT PANEL GLASS ; NA-X ZEOLITES ; LEAD RECOVERY ; ALKALINE ACTIVATION ; ORGANIC-COMPOUNDS ; ELECTRONIC WASTE ; FINE AGGREGATE ; FOAM GLASS ; REDUCTION
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(41373121 ; 41101213 ; 41271249)
WOS类目	Engineering, Environmental ; Engineering, Civil ; Environmental Sciences
WOS记录号	WOS:000390182600062
引用统计	被引频次：33[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/14012
专题	中国科学院广州能源研究所
作者单位	1.Hangzhou Dianzi Univ, Coll Mat Sci & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Yao, Zhitong,Wu, Daidai,Liu, Jie,et al. Recycling of typical difficult-to-treat e-waste: Synthesize zeolites from waste cathode-ray-tube funnel glass[J]. JOURNAL OF HAZARDOUS MATERIALS,2017,324:673-680.
APA	Yao, Zhitong,Wu, Daidai,Liu, Jie,Wu, Weihong,Zhao, Hongting,&Tang, Junhong.(2017).Recycling of typical difficult-to-treat e-waste: Synthesize zeolites from waste cathode-ray-tube funnel glass.JOURNAL OF HAZARDOUS MATERIALS,324,673-680.
MLA	Yao, Zhitong,et al."Recycling of typical difficult-to-treat e-waste: Synthesize zeolites from waste cathode-ray-tube funnel glass".JOURNAL OF HAZARDOUS MATERIALS 324(2017):673-680.