Anion intercalation double-metal hydroxide adsorbent, preparation method and application thereof
The invention provides an anion intercalation double-metal hydroxide adsorbent, a preparation method and application thereof, and belongs to the technical field of heavy metal adsorption materials. The preparation method disclosed by the invention comprises the following steps: carrying out hydrothe...
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| creator | SHEN XINGCAN RUAN CHANGPING ZHONG CHAORAN |
| description | The invention provides an anion intercalation double-metal hydroxide adsorbent, a preparation method and application thereof, and belongs to the technical field of heavy metal adsorption materials. The preparation method disclosed by the invention comprises the following steps: carrying out hydrothermal reaction on a divalent metal magnesium salt, a trivalent metal aluminum salt and urea to obtain a precursor MgAl-CO3-LDH; adding nitric acid and sodium nitrate into the precursor to obtain a sample MgAl-NO3-LDH; and carrying out hydrothermal reaction on the MgAl-NO3-LDH and a sodium phytate salt hydrate to obtain the anion intercalation double-metal hydroxide adsorbent. Compared with other chelating agents, the MgAl-PA-LDH prepared by the method disclosed by the invention has a stronger chelating effect with metal ions and more adsorption sites, and has a very excellent treatment effect on sewage containing cadmium ions. The anion intercalation double-metal hydroxide adsorbent is prepared through an ion exchan |
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The preparation method disclosed by the invention comprises the following steps: carrying out hydrothermal reaction on a divalent metal magnesium salt, a trivalent metal aluminum salt and urea to obtain a precursor MgAl-CO3-LDH; adding nitric acid and sodium nitrate into the precursor to obtain a sample MgAl-NO3-LDH; and carrying out hydrothermal reaction on the MgAl-NO3-LDH and a sodium phytate salt hydrate to obtain the anion intercalation double-metal hydroxide adsorbent. Compared with other chelating agents, the MgAl-PA-LDH prepared by the method disclosed by the invention has a stronger chelating effect with metal ions and more adsorption sites, and has a very excellent treatment effect on sewage containing cadmium ions. The anion intercalation double-metal hydroxide adsorbent is prepared through an ion exchan</description><language>chi ; eng</language><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; METALLURGY ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; THEIR RELEVANT APPARATUS ; TRANSPORTING ; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210601&DB=EPODOC&CC=CN&NR=112871128A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210601&DB=EPODOC&CC=CN&NR=112871128A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SHEN XINGCAN</creatorcontrib><creatorcontrib>RUAN CHANGPING</creatorcontrib><creatorcontrib>ZHONG CHAORAN</creatorcontrib><title>Anion intercalation double-metal hydroxide adsorbent, preparation method and application thereof</title><description>The invention provides an anion intercalation double-metal hydroxide adsorbent, a preparation method and application thereof, and belongs to the technical field of heavy metal adsorption materials. The preparation method disclosed by the invention comprises the following steps: carrying out hydrothermal reaction on a divalent metal magnesium salt, a trivalent metal aluminum salt and urea to obtain a precursor MgAl-CO3-LDH; adding nitric acid and sodium nitrate into the precursor to obtain a sample MgAl-NO3-LDH; and carrying out hydrothermal reaction on the MgAl-NO3-LDH and a sodium phytate salt hydrate to obtain the anion intercalation double-metal hydroxide adsorbent. Compared with other chelating agents, the MgAl-PA-LDH prepared by the method disclosed by the invention has a stronger chelating effect with metal ions and more adsorption sites, and has a very excellent treatment effect on sewage containing cadmium ions. 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| title | Anion intercalation double-metal hydroxide adsorbent, preparation method and application thereof |
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