Simultaneous Removal of Toxic Cyanide and Cu(II) Ions from Wastewater by a Bi-functional Raspberry-like TiO2@yeast Microspheres

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	Simultaneous Removal of Toxic Cyanide and Cu(II) Ions from Wastewater by a Bi-functional Raspberry-like TiO2@yeast Microspheres
	Li, Hong-Ying 1; Bai, Bo 2; Jing, Deng-Wei 3; Ding, Chen-Xu 2; Wang, Hong-Lun 2; Suo, You-Rui 2
	2015-07-31
发表期刊	JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES
卷号	18 期号:2 页码:175-184
文章类型	Article
摘要	A novel strategy for simultaneous removal of cyanide anions and copper cations was proposed. Firstly, TiO2@yeast hybrid microspheres with raspberry-like structure were fabricated by a facile hydrolysis method using titanium tetrachloride as Ti precursor. The physicochemical properties of the as-prepared samples were fully characterized. The bi-functional composites were then employed for the simultaneous removal of a typical mixture of cyanide and copper metal ions via bio-adsorption in dark and photo-catalysis under UV irradiation. The results showed that the satellitic TiO2 nanoparticles within the TiO2@yeast raspberry-like structure functioned as the photocatalytic active sites providing the electron/hole pairs, while the yeast cores worked as the adsorbent to capture the cyanide and copper ions onto the photocatalytic active sites. The synergistic effects of the bio-adsorption by yeast and photo-catalysis by the TiO2 nanoparticles over the bi-functional composites were demonstrated. Our results are expected to be of significant value for various environmental friendly applications.; A novel strategy for simultaneous removal of cyanide anions and copper cations was proposed. Firstly, TiO2@yeast hybrid microspheres with raspberry-like structure were fabricated by a facile hydrolysis method using titanium tetrachloride as Ti precursor. The physicochemical properties of the as-prepared samples were fully characterized. The bi-functional composites were then employed for the simultaneous removal of a typical mixture of cyanide and copper metal ions via bio-adsorption in dark and photo-catalysis under UV irradiation. The results showed that the satellitic TiO2 nanoparticles within the TiO2@yeast raspberry-like structure functioned as the photocatalytic active sites providing the electron/hole pairs, while the yeast cores worked as the adsorbent to capture the cyanide and copper ions onto the photocatalytic active sites. The synergistic effects of the bio-adsorption by yeast and photo-catalysis by the TiO2 nanoparticles over the bi-functional composites were demonstrated. Our results are expected to be of significant value for various environmental friendly applications.
关键词	Photocatalysis Bio-adsorption Hybrid Materials Synergistic Mechanism
WOS标题词	Science & Technology ; Physical Sciences
关键词[WOS]	TITANIUM-DIOXIDE ; COPPER-CYANIDE ; SACCHAROMYCES-CEREVISIAE ; PHOTOCATALYTIC ACTIVITY ; ACTIVATED CARBON ; EXCHANGE-RESINS ; BIOSORPTION ; FABRICATION ; ADSORPTION ; PARTICLES
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:000359358200001
引用统计
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/5532
专题	中国科学院西北高原生物研究所
作者单位	1.Changan Univ, Coll Environm Sci & Engn, Xian 710054, Peoples R China 2.Chinese Acad Sci, Northwest Plateau Inst Biol, Xining 810001, Peoples R China 3.Xi An Jiao Tong Univ, Int Res Ctr Renewable Energy, State Key Lab Multiphase Flow, Xian 710049, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Li, Hong-Ying,Bai, Bo,Jing, Deng-Wei,et al. Simultaneous Removal of Toxic Cyanide and Cu(II) Ions from Wastewater by a Bi-functional Raspberry-like TiO2@yeast Microspheres[J]. JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES,2015,18(2):175-184.
APA	Li, Hong-Ying,Bai, Bo,Jing, Deng-Wei,Ding, Chen-Xu,Wang, Hong-Lun,&Suo, You-Rui.(2015).Simultaneous Removal of Toxic Cyanide and Cu(II) Ions from Wastewater by a Bi-functional Raspberry-like TiO2@yeast Microspheres.JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES,18(2),175-184.
MLA	Li, Hong-Ying,et al."Simultaneous Removal of Toxic Cyanide and Cu(II) Ions from Wastewater by a Bi-functional Raspberry-like TiO2@yeast Microspheres".JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES 18.2(2015):175-184.