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Removal of Cd by humic acid modified TiO2 nanoparticles from aqueous solution
Khan, Shamshad1,2; Zhang Dan1,2; Yang Mengling1,2,3; Yang Yang4; He Haiyan1,2,3; Jiang Hao1,2
2017
Source PublicationDESALINATION AND WATER TREATMENT
ISSN1944-3994
EISSN1944-3986
Volume100Pages:193-203
SubtypeArticle
AbstractIn this study, removal of Cd from aqueous media by the adsorption of TiO2 nanoparticles (TNPs), with surface modification by humic acid (HA) was assessed. Results showed a linear increase of the coating percentage from 100-HA to 250-HA but no significant difference between the HA coated TNPs prepared at 250 and 350 mg L-1 due to an extremely narrow band gap. The obtained materials (HA-TNPs) were characterized by Fourier transform infrared spectroscopy and UV-visible spectrophotometer. Then, batch adsorption techniques were carried out to examine the possible adsorption mechanisms of Cd onto TNPs and HA-TNPs. It was noted that the adsorption capacity of the HATNPs for Cd enhanced considerably as compared to that of the bare TNPs, implying that HA coating might modify bioavailability of Cd in aquatic environment. Equilibrium data were best described by the Freundlich equation, and the partition distribution coefficient (k) of HA-TNPs increased by 34%, 50% and 59% for Cd at 298, 315 and 332 K respectively, as compared to the bare TNPs, suggesting that HA-TNPs had a stronger affinity of sites for Cd adsorption than that of bare TNPs.
KeywordTiO2 nanoparticles Surface modification Cadmium Adsorption capacity
DOI10.5004/dwt.2017.21802
Indexed BySCI
WOS KeywordPOORLY CRYSTALLINE HYDROXYAPATITE ; FE3O4 MAGNETIC NANOPARTICLES ; HEAVY-METAL CATIONS ; WASTE-WATER ; TITANIUM-DIOXIDE ; MAGHEMITE NANOPARTICLES ; EFFICIENT REMOVAL ; CARBON NANOTUBES ; NANO-ADSORBENT ; NANOSIZED TIO2
Language英语
Quartile4区
Funding ProjectNational Natural Science Foundation of China[41571315] ; CAS President's International Fellowship Initiative China[2017PCOO59] ; key project of China National Tobacco corporation Sichuan[SCYC 201504]
TOP
WOS Research AreaEngineering ; Water Resources
WOS SubjectEngineering, Chemical ; Water Resources
WOS IDWOS:000425243300021
Funding OrganizationNational Natural Science Foundation of China ; CAS President's International Fellowship Initiative China ; key project of China National Tobacco corporation Sichuan
PublisherDESALINATION PUBL
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20911
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorZhang Dan
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Environm Divers & Control, Chengdu 610041, Peoples R China
2.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100081, Peoples R China
4.Sichuan Tobacco Co, Yibin Branch Co, Yibin 644000, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Khan, Shamshad,Zhang Dan,Yang Mengling,et al. Removal of Cd by humic acid modified TiO2 nanoparticles from aqueous solution[J]. DESALINATION AND WATER TREATMENT,2017,100:193-203.
APA Khan, Shamshad,Zhang Dan,Yang Mengling,Yang Yang,He Haiyan,&Jiang Hao.(2017).Removal of Cd by humic acid modified TiO2 nanoparticles from aqueous solution.DESALINATION AND WATER TREATMENT,100,193-203.
MLA Khan, Shamshad,et al."Removal of Cd by humic acid modified TiO2 nanoparticles from aqueous solution".DESALINATION AND WATER TREATMENT 100(2017):193-203.
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