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Recycling of typical difficult-to-treat e-waste: Synthesize zeolites from waste cathode-ray-tube funnel glass
Yao, Zhitong1; Wu, Daidai2; Liu, Jie1; Wu, Weihong1; Zhao, Hongting1; Tang, Junhong1
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
资助者National Natural Science Foundation of China(41373121 ; 41101213 ; 41271249) ; National Natural Science Foundation of China(41373121 ; 41101213 ; 41271249)
DOI10.1016/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
资助者National Natural Science Foundation of China(41373121 ; 41101213 ; 41271249) ; 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
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
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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.
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