Denitrification on PdCu-AC with hydrogen from electrocatalytic water splitting
Highly efficient removal of nitrate from eutrophication water has been attracting great attention. Here, we develop a new-type denitrification system that is capable of catalytic nitrate reduction on denitrification catalysts suspended in the reactor, using hydrogen as reductant directly generated f...
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| Veröffentlicht in: | Research on chemical intermediates 2021-11, Vol.47 (11), p.4745-4762 |
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| creator | Yao, Xinyun Hu, Zhangqiang Wang, Lingzhi |
| description | Highly efficient removal of nitrate from eutrophication water has been attracting great attention. Here, we develop a new-type denitrification system that is capable of catalytic nitrate reduction on denitrification catalysts suspended in the reactor, using hydrogen as reductant directly generated from electrocatalytic hydrogen evolution reaction (HER). To improve system’s efficiency, Ni
3
S
2
nanosheets coated on Ni foam (Ni
3
S
2
-NF) was hydrothermally synthesized and applied as cathode material for HER. Meanwhile, bimetals PdCu nanoparticles dispersed in the channels of activated carbon (PdCu-AC) was also prepared by impregnation method and used as catalysts for nitrate reduction. Under − 1.3 V for HER and using 5%PdCu-AC as catalysts, the denitrification system behaved an optimal nitrate removal, with almost 100% nitrate removal and a dinitrogen selectivity of 64% in 5 h under neutral electrolyte at initial nitrate concentration of 100 mg-N/L. Meanwhile, the catalysts showed satisfactory stability, the system maintained over 95% nitrate removal efficiency and ~ 60% TN removal after 6 times runs at optimal denitrification conditions.
Graphic abstract |
| doi_str_mv | 10.1007/s11164-021-04540-5 |
| format | Article |
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3
S
2
nanosheets coated on Ni foam (Ni
3
S
2
-NF) was hydrothermally synthesized and applied as cathode material for HER. Meanwhile, bimetals PdCu nanoparticles dispersed in the channels of activated carbon (PdCu-AC) was also prepared by impregnation method and used as catalysts for nitrate reduction. Under − 1.3 V for HER and using 5%PdCu-AC as catalysts, the denitrification system behaved an optimal nitrate removal, with almost 100% nitrate removal and a dinitrogen selectivity of 64% in 5 h under neutral electrolyte at initial nitrate concentration of 100 mg-N/L. Meanwhile, the catalysts showed satisfactory stability, the system maintained over 95% nitrate removal efficiency and ~ 60% TN removal after 6 times runs at optimal denitrification conditions.
Graphic abstract</description><identifier>ISSN: 0922-6168</identifier><identifier>EISSN: 1568-5675</identifier><identifier>DOI: 10.1007/s11164-021-04540-5</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Activated carbon ; Bimetals ; Catalysis ; Catalysts ; Chemistry ; Chemistry and Materials Science ; Denitrification ; Electrode materials ; Eutrophication ; Hydrogen evolution reactions ; Inorganic Chemistry ; Metal foams ; Nanoparticles ; Nickel sulfide ; Nitrate removal ; Nitrates ; Physical Chemistry ; Reducing agents ; Selectivity ; Water splitting</subject><ispartof>Research on chemical intermediates, 2021-11, Vol.47 (11), p.4745-4762</ispartof><rights>The Author(s), under exclusive licence to Springer Nature B.V. 2021</rights><rights>The Author(s), under exclusive licence to Springer Nature B.V. 2021.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-81e2736160653ae3973588a7b57984ba09a1cfdc8f6f91a4ba7117065d6bbe313</citedby><cites>FETCH-LOGICAL-c319t-81e2736160653ae3973588a7b57984ba09a1cfdc8f6f91a4ba7117065d6bbe313</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11164-021-04540-5$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11164-021-04540-5$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Yao, Xinyun</creatorcontrib><creatorcontrib>Hu, Zhangqiang</creatorcontrib><creatorcontrib>Wang, Lingzhi</creatorcontrib><title>Denitrification on PdCu-AC with hydrogen from electrocatalytic water splitting</title><title>Research on chemical intermediates</title><addtitle>Res Chem Intermed</addtitle><description>Highly efficient removal of nitrate from eutrophication water has been attracting great attention. Here, we develop a new-type denitrification system that is capable of catalytic nitrate reduction on denitrification catalysts suspended in the reactor, using hydrogen as reductant directly generated from electrocatalytic hydrogen evolution reaction (HER). To improve system’s efficiency, Ni
3
S
2
nanosheets coated on Ni foam (Ni
3
S
2
-NF) was hydrothermally synthesized and applied as cathode material for HER. Meanwhile, bimetals PdCu nanoparticles dispersed in the channels of activated carbon (PdCu-AC) was also prepared by impregnation method and used as catalysts for nitrate reduction. Under − 1.3 V for HER and using 5%PdCu-AC as catalysts, the denitrification system behaved an optimal nitrate removal, with almost 100% nitrate removal and a dinitrogen selectivity of 64% in 5 h under neutral electrolyte at initial nitrate concentration of 100 mg-N/L. Meanwhile, the catalysts showed satisfactory stability, the system maintained over 95% nitrate removal efficiency and ~ 60% TN removal after 6 times runs at optimal denitrification conditions.
Graphic abstract</description><subject>Activated carbon</subject><subject>Bimetals</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Denitrification</subject><subject>Electrode materials</subject><subject>Eutrophication</subject><subject>Hydrogen evolution reactions</subject><subject>Inorganic Chemistry</subject><subject>Metal foams</subject><subject>Nanoparticles</subject><subject>Nickel sulfide</subject><subject>Nitrate removal</subject><subject>Nitrates</subject><subject>Physical Chemistry</subject><subject>Reducing agents</subject><subject>Selectivity</subject><subject>Water splitting</subject><issn>0922-6168</issn><issn>1568-5675</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLxDAUhYMoOI7-AVcF19HcpHl0OdQnDOpC1yFt05kMnWZMMsj8e6MV3AkXLly-c-7hIHQJ5BoIkTcRAESJCQVMSl4SzI_QDLhQmAvJj9GMVJRiAUKdorMYN4QAV4rM0POtHV0KrnetSc6PRZ7Xrt7jRV18urQu1ocu-JUdiz74bWEH26bgM2uGQ3Jt8WmSDUXcDS4lN67O0Ulvhmgvfvccvd_fvdWPePny8FQvlrhlUCWswFLJchwiODOWVZLlOEY2XFaqbAypDLR916pe9BWYfJEAMsOdaBrLgM3R1eS7C_5jb2PSG78PY36pKVeslJxQmik6UW3wMQbb611wWxMOGoj-7k1Pvencm_7pTfMsYpMoZnhc2fBn_Y_qC9hLb-Q</recordid><startdate>20211101</startdate><enddate>20211101</enddate><creator>Yao, Xinyun</creator><creator>Hu, Zhangqiang</creator><creator>Wang, Lingzhi</creator><general>Springer Netherlands</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20211101</creationdate><title>Denitrification on PdCu-AC with hydrogen from electrocatalytic water splitting</title><author>Yao, Xinyun ; Hu, Zhangqiang ; Wang, Lingzhi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-81e2736160653ae3973588a7b57984ba09a1cfdc8f6f91a4ba7117065d6bbe313</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Activated carbon</topic><topic>Bimetals</topic><topic>Catalysis</topic><topic>Catalysts</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Denitrification</topic><topic>Electrode materials</topic><topic>Eutrophication</topic><topic>Hydrogen evolution reactions</topic><topic>Inorganic Chemistry</topic><topic>Metal foams</topic><topic>Nanoparticles</topic><topic>Nickel sulfide</topic><topic>Nitrate removal</topic><topic>Nitrates</topic><topic>Physical Chemistry</topic><topic>Reducing agents</topic><topic>Selectivity</topic><topic>Water splitting</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yao, Xinyun</creatorcontrib><creatorcontrib>Hu, Zhangqiang</creatorcontrib><creatorcontrib>Wang, Lingzhi</creatorcontrib><collection>CrossRef</collection><jtitle>Research on chemical intermediates</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yao, Xinyun</au><au>Hu, Zhangqiang</au><au>Wang, Lingzhi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Denitrification on PdCu-AC with hydrogen from electrocatalytic water splitting</atitle><jtitle>Research on chemical intermediates</jtitle><stitle>Res Chem Intermed</stitle><date>2021-11-01</date><risdate>2021</risdate><volume>47</volume><issue>11</issue><spage>4745</spage><epage>4762</epage><pages>4745-4762</pages><issn>0922-6168</issn><eissn>1568-5675</eissn><abstract>Highly efficient removal of nitrate from eutrophication water has been attracting great attention. Here, we develop a new-type denitrification system that is capable of catalytic nitrate reduction on denitrification catalysts suspended in the reactor, using hydrogen as reductant directly generated from electrocatalytic hydrogen evolution reaction (HER). To improve system’s efficiency, Ni
3
S
2
nanosheets coated on Ni foam (Ni
3
S
2
-NF) was hydrothermally synthesized and applied as cathode material for HER. Meanwhile, bimetals PdCu nanoparticles dispersed in the channels of activated carbon (PdCu-AC) was also prepared by impregnation method and used as catalysts for nitrate reduction. Under − 1.3 V for HER and using 5%PdCu-AC as catalysts, the denitrification system behaved an optimal nitrate removal, with almost 100% nitrate removal and a dinitrogen selectivity of 64% in 5 h under neutral electrolyte at initial nitrate concentration of 100 mg-N/L. Meanwhile, the catalysts showed satisfactory stability, the system maintained over 95% nitrate removal efficiency and ~ 60% TN removal after 6 times runs at optimal denitrification conditions.
Graphic abstract</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s11164-021-04540-5</doi><tpages>18</tpages></addata></record> |
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| language | eng |
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| subjects | Activated carbon Bimetals Catalysis Catalysts Chemistry Chemistry and Materials Science Denitrification Electrode materials Eutrophication Hydrogen evolution reactions Inorganic Chemistry Metal foams Nanoparticles Nickel sulfide Nitrate removal Nitrates Physical Chemistry Reducing agents Selectivity Water splitting |
| title | Denitrification on PdCu-AC with hydrogen from electrocatalytic water splitting |
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