{"id":1551,"date":"2014-07-09T15:35:44","date_gmt":"2014-07-09T13:35:44","guid":{"rendered":"http:\/\/wp.unil.ch\/lge\/?p=1551"},"modified":"2014-07-09T15:36:36","modified_gmt":"2014-07-09T13:36:36","slug":"research-on-nanoscale-feiii-precipitate-formation-recently-published-in-geochimica-et-cosmochmica-acta","status":"publish","type":"post","link":"https:\/\/wp.unil.ch\/lge\/2014\/07\/research-on-nanoscale-feiii-precipitate-formation-recently-published-in-geochimica-et-cosmochmica-acta\/","title":{"rendered":"Research on nanoscale Fe(III) precipitate formation recently published in Geochimica et Cosmochmica Acta"},"content":{"rendered":"<p>A recent publication <a href=\"https:\/\/dx.doi.org\/10.1016\/j.gca.2013.11.044\" target=\"_blank\">(https:\/\/dx.doi.org\/10.1016\/j.gca.2013.11.044)<\/a> from IDYST post-doctoral researcher <a title=\"Postdocs\" href=\"https:\/\/wp.unil.ch\/lge\/people\/postdocs\/\" target=\"_blank\">Case van Genuchten<\/a> and Professor <a title=\"Jasquelin Pe\u00f1a\" href=\"https:\/\/wp.unil.ch\/lge\/people\/jasquelin-pena\/\" target=\"_blank\">Jasquelin Pe\u00f1a<\/a> uncovers how bivalent cations and oxyanions control the structure of Fe(III) precipitates generated from Fe(II) oxidation. The authors found that the presence of co-existing bivalent cations (Ca2+, Mg2+) and oxyanions (P, As(V), Si) during Fe(II) oxidation and Fe(III) polymerization changes the Fe(III) phase from a \u201cpseudo\u201d lepidocrocite (?-FeOOH) with low sheet-stacking coherence to a nanoscale oxyanion-rich Fe(III) polymer. The results from this research have application across multiple disciplines ranging from low-cost drinking water treatment to the transport and fate of contaminants and nutrients in natural and engineered systems. This is one of the first studies to reveal the intermediate-ranged structure of nanocrystalline, oxyanion-rich Fe(III) polymers, the structures of which continue to be debated in the environmental geochemistry literature.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A recent publication (https:\/\/dx.doi.org\/10.1016\/j.gca.2013.11.044) from IDYST post-doctoral researcher Case van Genuchten and Professor Jasquelin Pe\u00f1a uncovers how bivalent cations and oxyanions control the structure of Fe(III) precipitates generated from Fe(II) &hellip; <\/p>\n","protected":false},"author":1581,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"ngg_post_thumbnail":0,"footnotes":""},"categories":[52241],"tags":[],"class_list":["post-1551","post","type-post","status-publish","format-standard","category-news"],"_links":{"self":[{"href":"https:\/\/wp.unil.ch\/lge\/wp-json\/wp\/v2\/posts\/1551","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.unil.ch\/lge\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.unil.ch\/lge\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/lge\/wp-json\/wp\/v2\/users\/1581"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/lge\/wp-json\/wp\/v2\/comments?post=1551"}],"version-history":[{"count":0,"href":"https:\/\/wp.unil.ch\/lge\/wp-json\/wp\/v2\/posts\/1551\/revisions"}],"wp:attachment":[{"href":"https:\/\/wp.unil.ch\/lge\/wp-json\/wp\/v2\/media?parent=1551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.unil.ch\/lge\/wp-json\/wp\/v2\/categories?post=1551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.unil.ch\/lge\/wp-json\/wp\/v2\/tags?post=1551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}