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The global threat from plastic pollution 期刊论文
Science, 2021
作者:  Matthew MacLeod;  Hans Peter H. Arp;  Mine B. Tekman;  Annika Jahnke
收藏  |  浏览/下载:1/0  |  提交时间:2021/07/27
Swarming motility in host defense 期刊论文
Science, 2021
作者:  Briana L. Rocha-Gregg;  Anna Huttenlocher
收藏  |  浏览/下载:1/0  |  提交时间:2021/06/24
Merging shuttle reactions and paired electrolysis for reversible vicinal dihalogenations 期刊论文
Science, 2021
作者:  Xichang Dong;  Johannes L. Roeckl;  Siegfried R. Waldvogel;  Bill Morandi
收藏  |  浏览/下载:1/0  |  提交时间:2021/02/17
Core commitments for field trials of gene drive organisms 期刊论文
Science, 2020
作者:  Kanya C. Long;  Luke Alphey;  George J. Annas;  Cinnamon S. Bloss;  Karl J. Campbell;  Jackson Champer;  Chun-Hong Chen;  Amit Choudhary;  George M. Church;  James P. Collins;  Kimberly L. Cooper;  Jason A. Delborne;  Owain R. Edwards;  Claudia I. Emerson;  Kevin Esvelt;  Sam Weiss Evans;  Robert M. Friedman;  Valentino M. Gantz;  Fred Gould;  Sarah Hartley;  Elizabeth Heitman;  Janet Hemingway;  Hirotaka Kanuka;  Jennifer Kuzma;  James V. Lavery;  Yoosook Lee;  Marce Lorenzen;  Jeantine E. Lunshof;  John M. Marshall;  Philipp W. Messer;  Craig Montell;  Kenneth A. Oye;  Megan J. Palmer;  Philippos Aris Papathanos;  Prasad N. Paradkar;  Antoinette J. Piaggio;  Jason L. Rasgon;  Gordana Rašić;  Larisa Rudenko;  J. Royden Saah;  Maxwell J. Scott;  Jolene T. Sutton;  Adam E. Vorsino;  Omar S. Akbari
收藏  |  浏览/下载:23/0  |  提交时间:2020/12/22
Fossil electricity retirement deadlines for a just transition 期刊论文
Science, 2020
作者:  Emily Grubert
收藏  |  浏览/下载:44/0  |  提交时间:2020/12/07
Pore-scale investigation of the use of reactive nanoparticles for in situ remediation of contaminated groundwater source 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (24) : 13366-13373
作者:  Pak, Tannaz;  de Lima Luz, Luiz Fernando, Jr.;  Tosco, Tiziana;  Ruiz Costa, Gabriel Schubert;  Rangel Rosa, Paola Rodrigues;  Archilha, Nathaly Lopes
收藏  |  浏览/下载:10/0  |  提交时间:2020/06/09
NAPL in situ degradation  groundwater remediation  nanoremediation  zero-valent iron nanoparticle  X-ray-computed microtomography  
Transparency on greenhouse gas emissions from mining to enable climate change mitigation 期刊论文
NATURE GEOSCIENCE, 2020, 13 (2) : 100-+
作者:  Azadi, Mehdi;  Northey, Stephen A.;  Ali, Saleem H.;  Edraki, Mansour
收藏  |  浏览/下载:8/0  |  提交时间:2020/05/13
Redox-switchable carboranes for uranium capture and release 期刊论文
NATURE, 2020, 577 (7792) : 652-+
作者:  Marques, Joao C.;  Li, Meng;  Schaak, Diane;  Robson, Drew N.;  Li, Jennifer M.
收藏  |  浏览/下载:31/0  |  提交时间:2020/07/03

The uranyl ion (UO22+  U(vi) oxidation state) is the most common form of uranium found in terrestrial and aquatic environments and is a central component in nuclear fuel processing and waste remediation efforts. Uranyl capture from either seawater or nuclear waste has been well studied and typically relies on extremely strong chelating/binding affinities to UO22+ using chelating polymers(1,2), porous inorganic(3-5) or carbon-based(6,7) materials, as well as homogeneous(8) compounds. By contrast, the controlled release of uranyl after capture is less established and can be difficult, expensive or destructive to the initial material(2,9). Here we show how harnessing the redox-switchable chelating and donating properties of an ortho-substituted closo-carborane (1,2-(Ph2PO)(2)-1,2-C2B10H10) cluster molecule can lead to the controlled chemical or electrochemical capture and release of UO22+ in monophasic (organic) or biphasic (organic/aqueous) model solvent systems. This is achieved by taking advantage of the increase in the ligand bite angle when the closo-carborane is reduced to the nido-carborane, resulting in C-C bond rupture and cage opening. The use of electrochemical methods for uranyl capture and release may complement existing sorbent and processing systems.


Redox-switchable chelation is demonstrated for a carborane cluster molecule, leading to controlled chemical or electrochemical capture and release of uranyl in monophasic or biphasic model solvent systems.


  
Significant Organic Carbon Accumulation in Two Coastal Acid Sulfate Soil Wetlands 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (6) : 3245-3251
作者:  Brown, Dylan R.;  Johnston, Scott G.;  Santos, Isaac R.;  Holloway, Ceylena J.;  Sanders, Christian J.
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/26
coastal acid sulfate soils  sediment accretion  carbon accumulation  
How clean is clean: a review of the social science of environmental cleanups 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2018, 13 (8)
作者:  Maxwell, Keely;  Kiessling, Brittany;  Buckley, Jenifer
收藏  |  浏览/下载:10/0  |  提交时间:2019/04/09
decontamination  remediation  social science  Superfund  brownfields  megasites  public engagement