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Fibrous red phosphorus as a non-metallic photocatalyst for the effective reduction of Cr(VI) under direct sunlight
[Display omitted] •Fibrous red phosphorus (FRP) was synthesized by solid state method.•Bandgap of FRP ~1.9 eV makes it suitable photocatalyst even in natural sunlight.•FRP was explored as non-metallic photocatalyst for reduction of toxic Cr(VI).•High rate of Cr(VI) reduction was observed in acidic m...
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Published in: | Materials letters 2021-01, Vol.283, p.128750, Article 128750 |
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creator | Athira, T.K. Roshith, M. Satheesh Babu, T.G. Ravi Kumar, Darbha V. |
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•Fibrous red phosphorus (FRP) was synthesized by solid state method.•Bandgap of FRP ~1.9 eV makes it suitable photocatalyst even in natural sunlight.•FRP was explored as non-metallic photocatalyst for reduction of toxic Cr(VI).•High rate of Cr(VI) reduction was observed in acidic medium.•Complete reduction of Cr(VI) (25 mg/L, 100 mL) was observed within 40 min at pH-2.
Hexavalent chromium is an important inorganic industrial effluent in the water that causes serious health problems to the mankind. Photocatalytic reduction of Cr(VI) is a green technology that converts the toxic Cr(VI) to non-toxic Cr(III). In the photocatalytic reduction of Cr(VI), transition metal oxide semiconductors are mainly used as photocatalysts. This infers, for the removal of a transition metal i.e. Cr(VI), another transition metal is added in the form of photocatalyst. Hence, we explore a non-metallic, elemental photocatalyst fibrous red phosphorus (FRP), a crystalline allotrope of red phosphorus as photocatalyst for Cr(VI) reduction. FRP exhibits excellent photocatalytic activity towards Cr(VI) reduction under direct sunlight and we observed complete reduction of Cr(VI) (25 mg/L) within 40 min at pH-2. |
doi_str_mv | 10.1016/j.matlet.2020.128750 |
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•Fibrous red phosphorus (FRP) was synthesized by solid state method.•Bandgap of FRP ~1.9 eV makes it suitable photocatalyst even in natural sunlight.•FRP was explored as non-metallic photocatalyst for reduction of toxic Cr(VI).•High rate of Cr(VI) reduction was observed in acidic medium.•Complete reduction of Cr(VI) (25 mg/L, 100 mL) was observed within 40 min at pH-2.
Hexavalent chromium is an important inorganic industrial effluent in the water that causes serious health problems to the mankind. Photocatalytic reduction of Cr(VI) is a green technology that converts the toxic Cr(VI) to non-toxic Cr(III). In the photocatalytic reduction of Cr(VI), transition metal oxide semiconductors are mainly used as photocatalysts. This infers, for the removal of a transition metal i.e. Cr(VI), another transition metal is added in the form of photocatalyst. Hence, we explore a non-metallic, elemental photocatalyst fibrous red phosphorus (FRP), a crystalline allotrope of red phosphorus as photocatalyst for Cr(VI) reduction. FRP exhibits excellent photocatalytic activity towards Cr(VI) reduction under direct sunlight and we observed complete reduction of Cr(VI) (25 mg/L) within 40 min at pH-2.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2020.128750</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Allotropy ; Catalytic activity ; Chromium ; Cr(VI) reduction ; Fibrous red phosphorus ; Hexavalent chromium ; Industrial effluents ; Materials science ; Metal oxide semiconductors ; Oxidation ; Phosphorus ; Photocatalysis ; Photocatalysts ; Solid state synthesis ; Sunlight ; Transition metal oxides</subject><ispartof>Materials letters, 2021-01, Vol.283, p.128750, Article 128750</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Jan 15, 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-5652861bd9398b339da7bc08597294b0645d5dc7e521b1c588384d3be4ae0b5a3</citedby><cites>FETCH-LOGICAL-c334t-5652861bd9398b339da7bc08597294b0645d5dc7e521b1c588384d3be4ae0b5a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27922,27923</link.rule.ids></links><search><creatorcontrib>Athira, T.K.</creatorcontrib><creatorcontrib>Roshith, M.</creatorcontrib><creatorcontrib>Satheesh Babu, T.G.</creatorcontrib><creatorcontrib>Ravi Kumar, Darbha V.</creatorcontrib><title>Fibrous red phosphorus as a non-metallic photocatalyst for the effective reduction of Cr(VI) under direct sunlight</title><title>Materials letters</title><description>[Display omitted]
•Fibrous red phosphorus (FRP) was synthesized by solid state method.•Bandgap of FRP ~1.9 eV makes it suitable photocatalyst even in natural sunlight.•FRP was explored as non-metallic photocatalyst for reduction of toxic Cr(VI).•High rate of Cr(VI) reduction was observed in acidic medium.•Complete reduction of Cr(VI) (25 mg/L, 100 mL) was observed within 40 min at pH-2.
Hexavalent chromium is an important inorganic industrial effluent in the water that causes serious health problems to the mankind. Photocatalytic reduction of Cr(VI) is a green technology that converts the toxic Cr(VI) to non-toxic Cr(III). In the photocatalytic reduction of Cr(VI), transition metal oxide semiconductors are mainly used as photocatalysts. This infers, for the removal of a transition metal i.e. Cr(VI), another transition metal is added in the form of photocatalyst. Hence, we explore a non-metallic, elemental photocatalyst fibrous red phosphorus (FRP), a crystalline allotrope of red phosphorus as photocatalyst for Cr(VI) reduction. FRP exhibits excellent photocatalytic activity towards Cr(VI) reduction under direct sunlight and we observed complete reduction of Cr(VI) (25 mg/L) within 40 min at pH-2.</description><subject>Allotropy</subject><subject>Catalytic activity</subject><subject>Chromium</subject><subject>Cr(VI) reduction</subject><subject>Fibrous red phosphorus</subject><subject>Hexavalent chromium</subject><subject>Industrial effluents</subject><subject>Materials science</subject><subject>Metal oxide semiconductors</subject><subject>Oxidation</subject><subject>Phosphorus</subject><subject>Photocatalysis</subject><subject>Photocatalysts</subject><subject>Solid state synthesis</subject><subject>Sunlight</subject><subject>Transition metal oxides</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9UE1r3DAQFSWFbtL-gx4EvSQHb2V9WPIlEJYkXVjIJQm9CVkad7V4ra0kL-y_j4x7LswwX2_eMA-h7zVZ16Rufh7WR5MHyGtKaGlRJQX5hFa1kqzirWyv0KrAZCWk_P0FXad0IITwlvAVik--i2FKOILDp31IxWMpTTE8hrE6QjbD4O08zMGaUl1Sxn2IOO8BQ9-Dzf4MM8FUsjDi0ONNvH3f3uFpdBCx87FgcJrGwf_Z56_oc2-GBN_-xRv09vT4uvlV7V6et5uHXWUZ47kSjaCqqTvXslZ1jLXOyM4SJVpJW96RhgsnnJUgaN3VVijFFHesA26AdMKwG_Rj4T3F8HeClPUhTHEsJzXlUilKGyoKii8oG0NKEXp9iv5o4kXXRM_q6oNe1NWzunpRt6zdL2tQPjh7iDpZD6OF5Vntgv8_wQeYy4Wx</recordid><startdate>20210115</startdate><enddate>20210115</enddate><creator>Athira, T.K.</creator><creator>Roshith, M.</creator><creator>Satheesh Babu, T.G.</creator><creator>Ravi Kumar, Darbha V.</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20210115</creationdate><title>Fibrous red phosphorus as a non-metallic photocatalyst for the effective reduction of Cr(VI) under direct sunlight</title><author>Athira, T.K. ; Roshith, M. ; Satheesh Babu, T.G. ; Ravi Kumar, Darbha V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-5652861bd9398b339da7bc08597294b0645d5dc7e521b1c588384d3be4ae0b5a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Allotropy</topic><topic>Catalytic activity</topic><topic>Chromium</topic><topic>Cr(VI) reduction</topic><topic>Fibrous red phosphorus</topic><topic>Hexavalent chromium</topic><topic>Industrial effluents</topic><topic>Materials science</topic><topic>Metal oxide semiconductors</topic><topic>Oxidation</topic><topic>Phosphorus</topic><topic>Photocatalysis</topic><topic>Photocatalysts</topic><topic>Solid state synthesis</topic><topic>Sunlight</topic><topic>Transition metal oxides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Athira, T.K.</creatorcontrib><creatorcontrib>Roshith, M.</creatorcontrib><creatorcontrib>Satheesh Babu, T.G.</creatorcontrib><creatorcontrib>Ravi Kumar, Darbha V.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Athira, T.K.</au><au>Roshith, M.</au><au>Satheesh Babu, T.G.</au><au>Ravi Kumar, Darbha V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fibrous red phosphorus as a non-metallic photocatalyst for the effective reduction of Cr(VI) under direct sunlight</atitle><jtitle>Materials letters</jtitle><date>2021-01-15</date><risdate>2021</risdate><volume>283</volume><spage>128750</spage><pages>128750-</pages><artnum>128750</artnum><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>[Display omitted]
•Fibrous red phosphorus (FRP) was synthesized by solid state method.•Bandgap of FRP ~1.9 eV makes it suitable photocatalyst even in natural sunlight.•FRP was explored as non-metallic photocatalyst for reduction of toxic Cr(VI).•High rate of Cr(VI) reduction was observed in acidic medium.•Complete reduction of Cr(VI) (25 mg/L, 100 mL) was observed within 40 min at pH-2.
Hexavalent chromium is an important inorganic industrial effluent in the water that causes serious health problems to the mankind. Photocatalytic reduction of Cr(VI) is a green technology that converts the toxic Cr(VI) to non-toxic Cr(III). In the photocatalytic reduction of Cr(VI), transition metal oxide semiconductors are mainly used as photocatalysts. This infers, for the removal of a transition metal i.e. Cr(VI), another transition metal is added in the form of photocatalyst. Hence, we explore a non-metallic, elemental photocatalyst fibrous red phosphorus (FRP), a crystalline allotrope of red phosphorus as photocatalyst for Cr(VI) reduction. FRP exhibits excellent photocatalytic activity towards Cr(VI) reduction under direct sunlight and we observed complete reduction of Cr(VI) (25 mg/L) within 40 min at pH-2.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2020.128750</doi></addata></record> |
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subjects | Allotropy Catalytic activity Chromium Cr(VI) reduction Fibrous red phosphorus Hexavalent chromium Industrial effluents Materials science Metal oxide semiconductors Oxidation Phosphorus Photocatalysis Photocatalysts Solid state synthesis Sunlight Transition metal oxides |
title | Fibrous red phosphorus as a non-metallic photocatalyst for the effective reduction of Cr(VI) under direct sunlight |
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