Sorption-desorption of Th(IV) on attapulgite: effects of pH, ionic strength and temperature

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
Wang-Suo WuSongsheng Lu

Abstract

The sorption of Th(IV) on attapulgite was studied as a function of pH, ionic strength, temperature, attapulgite contents and Th(IV) concentrations under ambient conditions using a batch technique. The results indicated that sorption of Th(IV) on attapulgite was strongly affected by pH values, and weakly dependent on ionic strength. Sorption of Th(IV) was dominated by surface complexation, although ion exchange also contributed to this sorption. Sorption of Th(IV) increased with increasing temperature of the system. Enthalpy (DeltaH(0)), entropy (DeltaS(0)) and Gibbs free energy (DeltaG(0)) were calculated from the temperature-dependent sorption data; the results indicated that the sorption of Th(IV) on attapulgite was a spontaneous process. Sorption-desorption hysteresis indicated that the sorption of Th(IV) was irreversible, and that the Th(VI) adsorbed on attapulgite was difficult to be desorbed from solid to liquid phases.

References

Dec 23, 1999·Journal of Colloid and Interface Science·A M Jakobsson
Jun 27, 2003·Environmental Pollution·E Alvarez-Ayuso, A García-Sánchez
Apr 28, 2004·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Xiangke WangYican Wu
May 1, 2004·Environmental Science & Technology·Hülya Genç-FuhrmanDavid McConchie
Sep 25, 2004·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Xiangke Wang, Xiaoping Liu
Oct 23, 2004·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Xiangke Wang, Xiaoping Liu
Apr 12, 2005·Environmental Science & Technology·Pascal ReillerValérie Moulin
Dec 5, 2006·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Changlun Chen, Xiangke Wang
Dec 13, 2006·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·X L TanAihua Sun

Citations

Aug 2, 2011·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Q H FanW S Wu
Jul 20, 2010·Journal of Hazardous Materials·Mohsen HamidpourHans Christian Brunn Hansen
Jul 7, 2009·Journal of Hazardous Materials·Lili ZhangXin Wang
Aug 12, 2009·Journal of Hazardous Materials·S AytasR Donat
May 12, 2009·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Zhiwei NiuWang-Suo Wu
May 12, 2009·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Shitong YangXiangke Wang
Jul 23, 2015·Environmental Science. Processes & Impacts·Q H FanD L Wang
Jan 18, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Yu-Long WangWang-Suo Wu
Jul 22, 2014·Environmental Science. Processes & Impacts·Li PingWu Wangsuo

Related Concepts

Rheaban
Adsorption
Hydrogen-Ion Concentration
Thorium
Magnesium Compounds, Inorganic
Silicon Compounds, Inorganic

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Neural Activity: Imaging

Imaging of neural activity in vivo has developed rapidly recently with the advancement of fluorescence microscopy, including new applications using miniaturized microscopes (miniscopes). This feed follows the progress in this growing field.

The Tendon Seed Network

Tendons are rich in the extracellular matrix and are abundant throughout the body providing essential roles including structure and mobility. The transcriptome of tendons is being compiled to understand the micro-anatomical functioning of tendons. Discover the latest research pertaining to the Tendon Seed Network here.

Myocardial Stunning

Myocardial stunning is a mechanical dysfunction that persists after reperfusion of previously ischemic tissue in the absence of irreversible damage including myocardial necrosis. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Incretins

Incretins are metabolic hormones that stimulate a decrease in glucose levels in the blood and they have been implicated in glycemic regulation in the remission phase of type 1 diabetes. Here is the latest research.

Chromatin Regulation and Circadian Clocks

The circadian clock plays an important role in regulating transcriptional dynamics through changes in chromatin folding and remodelling. Discover the latest research on Chromatin Regulation and Circadian Clocks here.

Long COVID-19

“Long Covid-19” describes illness in patients who are reporting long-lasting effects of the SARS-CoV-19 infection, often long after they have recovered from acute Covid-19. Ongoing health issues often reported include low exercise tolerance and breathing difficulties, chronic tiredness, and mental health problems such as post-traumatic stress disorder and depression. This feed follows the latest research into Long Covid.

Spatio-Temporal Regulation of DNA Repair

DNA repair is a complex process regulated by several different classes of enzymes, including ligases, endonucleases, and polymerases. This feed focuses on the spatial and temporal regulation that accompanies DNA damage signaling and repair enzymes and processes.

Related Papers

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
Changlun Chen, Xiangke Wang
Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
Lei Chen, Xuan Gao
Journal of Hazardous Materials
Denis L GuerraClaudio Airoldi
Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
Guodong ShengXiangke Wang
© 2021 Meta ULC. All rights reserved