One-pot synthesis of ZnO/ZnGa2O4 heterojunction with X/XY structure for improved photocatalytic activity
•New heterojunction ZnO/ZnGa2O4 with X/XY structure is found.•A simple one-pot coprecipitation synthesis method is developed.•Heterojunction has much higher photocatalytic activity.•The synthetic method has potential commercial value. A large scale one-pot coprecipitation method is developed for syn...
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| Veröffentlicht in: | Applied surface science 2014-10, Vol.317, p.682-687 |
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| creator | Baojun, Ma Keying, Lin Weiguang, Su Wanyi, Liu |
| description | •New heterojunction ZnO/ZnGa2O4 with X/XY structure is found.•A simple one-pot coprecipitation synthesis method is developed.•Heterojunction has much higher photocatalytic activity.•The synthetic method has potential commercial value.
A large scale one-pot coprecipitation method is developed for synthesis of ZnO/ZnGa2O4 heterojunction photocatalysts. XRD and Raman spectra show that ZnO and ZnGa2O4 are formed. SEM images indicate the particle size of ZnO/ZnGa2O4 heterojunction composites is about 20nm. The HRTEM images show a close contact between ZnO and ZnGa2O4. The activities of photocatalysts are evaluated by photocatalytic degradation of methyl orange (MO) in the aqueous solution. The efficiency of MO degradation on the optimum photocatalysts ZnO/ZnGa2O4-0.2 shows about 82% in 70min, which is greatly higher than that of ZnO (6%) and ZnGa2O4 (47%). It is proposed that the heterojunctions between ZnO and ZnGa2O4 promote the charge separation and is responsible for the improved photocatalytic activity. The synthetic method of ZnO/ZnGa2O4 heterojunction has potential commercial value and can be applied to other semiconductors heterojunctions with similar structure of X/XY. |
| doi_str_mv | 10.1016/j.apsusc.2014.08.089 |
| format | Article |
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A large scale one-pot coprecipitation method is developed for synthesis of ZnO/ZnGa2O4 heterojunction photocatalysts. XRD and Raman spectra show that ZnO and ZnGa2O4 are formed. SEM images indicate the particle size of ZnO/ZnGa2O4 heterojunction composites is about 20nm. The HRTEM images show a close contact between ZnO and ZnGa2O4. The activities of photocatalysts are evaluated by photocatalytic degradation of methyl orange (MO) in the aqueous solution. The efficiency of MO degradation on the optimum photocatalysts ZnO/ZnGa2O4-0.2 shows about 82% in 70min, which is greatly higher than that of ZnO (6%) and ZnGa2O4 (47%). It is proposed that the heterojunctions between ZnO and ZnGa2O4 promote the charge separation and is responsible for the improved photocatalytic activity. The synthetic method of ZnO/ZnGa2O4 heterojunction has potential commercial value and can be applied to other semiconductors heterojunctions with similar structure of X/XY.</description><identifier>ISSN: 0169-4332</identifier><identifier>EISSN: 1873-5584</identifier><identifier>DOI: 10.1016/j.apsusc.2014.08.089</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Condensed matter: structure, mechanical and thermal properties ; Coprecipitation ; Cross-disciplinary physics: materials science; rheology ; Degradation ; Exact sciences and technology ; Heterojunction ; Heterojunctions ; One-pot ; Photocatalysis ; Photocatalysts ; Photocatalytic ; Physics ; Semiconductors ; Synthesis ; Zinc oxide ; ZnGa2O4 ; ZnO</subject><ispartof>Applied surface science, 2014-10, Vol.317, p.682-687</ispartof><rights>2014 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c336t-209ba687413e28c3aa1c51c93f599473014fc8a0dea3a3d51449587d0f4b4f863</citedby><cites>FETCH-LOGICAL-c336t-209ba687413e28c3aa1c51c93f599473014fc8a0dea3a3d51449587d0f4b4f863</cites><orcidid>0000-0003-0020-6650</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.apsusc.2014.08.089$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28872139$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Baojun, Ma</creatorcontrib><creatorcontrib>Keying, Lin</creatorcontrib><creatorcontrib>Weiguang, Su</creatorcontrib><creatorcontrib>Wanyi, Liu</creatorcontrib><title>One-pot synthesis of ZnO/ZnGa2O4 heterojunction with X/XY structure for improved photocatalytic activity</title><title>Applied surface science</title><description>•New heterojunction ZnO/ZnGa2O4 with X/XY structure is found.•A simple one-pot coprecipitation synthesis method is developed.•Heterojunction has much higher photocatalytic activity.•The synthetic method has potential commercial value.
A large scale one-pot coprecipitation method is developed for synthesis of ZnO/ZnGa2O4 heterojunction photocatalysts. XRD and Raman spectra show that ZnO and ZnGa2O4 are formed. SEM images indicate the particle size of ZnO/ZnGa2O4 heterojunction composites is about 20nm. The HRTEM images show a close contact between ZnO and ZnGa2O4. The activities of photocatalysts are evaluated by photocatalytic degradation of methyl orange (MO) in the aqueous solution. The efficiency of MO degradation on the optimum photocatalysts ZnO/ZnGa2O4-0.2 shows about 82% in 70min, which is greatly higher than that of ZnO (6%) and ZnGa2O4 (47%). It is proposed that the heterojunctions between ZnO and ZnGa2O4 promote the charge separation and is responsible for the improved photocatalytic activity. The synthetic method of ZnO/ZnGa2O4 heterojunction has potential commercial value and can be applied to other semiconductors heterojunctions with similar structure of X/XY.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Coprecipitation</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Degradation</subject><subject>Exact sciences and technology</subject><subject>Heterojunction</subject><subject>Heterojunctions</subject><subject>One-pot</subject><subject>Photocatalysis</subject><subject>Photocatalysts</subject><subject>Photocatalytic</subject><subject>Physics</subject><subject>Semiconductors</subject><subject>Synthesis</subject><subject>Zinc oxide</subject><subject>ZnGa2O4</subject><subject>ZnO</subject><issn>0169-4332</issn><issn>1873-5584</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp9kEGLFDEQhYMoOK7-Aw-5CF56Jumku5OLIIuuwsJcFNa9hGy6QmfoSdpUemT-vRlm8SgU1KG-V1XvEfKesy1nvN8dtnbBFd22ZVxumaqlX5ANV4Nouk7Jl2RTMd1IIdrX5A3igTHe1umGTPsIzZIKxXMsE2BAmjx9jPvdY7yz7V7SCQrkdFijKyFF-ieUiT7sHn5RLHl1Zc1Afco0HJecTjDSZUolOVvsfC7BUVtlp1DOb8krb2eEd8_9hvz8-uXH7bfmfn_3_fbzfeOE6EvTMv1kezVILqBVTljLXcedFr7TWg6iGvROWTaCFVaMHZdSd2oYmZdP0qte3JCP1731nd8rYDHHgA7m2UZIKxre94wJrQZVUXlFXU6IGbxZcjjafDacmUuw5mCuwZpLsIapWrrKPjxfsOjs7LONLuA_bavU0HJx4T5dOah2TwGyQRcgOhhDBlfMmML_D_0FIT2RYQ</recordid><startdate>20141030</startdate><enddate>20141030</enddate><creator>Baojun, Ma</creator><creator>Keying, Lin</creator><creator>Weiguang, Su</creator><creator>Wanyi, Liu</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-0020-6650</orcidid></search><sort><creationdate>20141030</creationdate><title>One-pot synthesis of ZnO/ZnGa2O4 heterojunction with X/XY structure for improved photocatalytic activity</title><author>Baojun, Ma ; Keying, Lin ; Weiguang, Su ; Wanyi, Liu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c336t-209ba687413e28c3aa1c51c93f599473014fc8a0dea3a3d51449587d0f4b4f863</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Coprecipitation</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Degradation</topic><topic>Exact sciences and technology</topic><topic>Heterojunction</topic><topic>Heterojunctions</topic><topic>One-pot</topic><topic>Photocatalysis</topic><topic>Photocatalysts</topic><topic>Photocatalytic</topic><topic>Physics</topic><topic>Semiconductors</topic><topic>Synthesis</topic><topic>Zinc oxide</topic><topic>ZnGa2O4</topic><topic>ZnO</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Baojun, Ma</creatorcontrib><creatorcontrib>Keying, Lin</creatorcontrib><creatorcontrib>Weiguang, Su</creatorcontrib><creatorcontrib>Wanyi, Liu</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied surface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Baojun, Ma</au><au>Keying, Lin</au><au>Weiguang, Su</au><au>Wanyi, Liu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>One-pot synthesis of ZnO/ZnGa2O4 heterojunction with X/XY structure for improved photocatalytic activity</atitle><jtitle>Applied surface science</jtitle><date>2014-10-30</date><risdate>2014</risdate><volume>317</volume><spage>682</spage><epage>687</epage><pages>682-687</pages><issn>0169-4332</issn><eissn>1873-5584</eissn><abstract>•New heterojunction ZnO/ZnGa2O4 with X/XY structure is found.•A simple one-pot coprecipitation synthesis method is developed.•Heterojunction has much higher photocatalytic activity.•The synthetic method has potential commercial value.
A large scale one-pot coprecipitation method is developed for synthesis of ZnO/ZnGa2O4 heterojunction photocatalysts. XRD and Raman spectra show that ZnO and ZnGa2O4 are formed. SEM images indicate the particle size of ZnO/ZnGa2O4 heterojunction composites is about 20nm. The HRTEM images show a close contact between ZnO and ZnGa2O4. The activities of photocatalysts are evaluated by photocatalytic degradation of methyl orange (MO) in the aqueous solution. The efficiency of MO degradation on the optimum photocatalysts ZnO/ZnGa2O4-0.2 shows about 82% in 70min, which is greatly higher than that of ZnO (6%) and ZnGa2O4 (47%). It is proposed that the heterojunctions between ZnO and ZnGa2O4 promote the charge separation and is responsible for the improved photocatalytic activity. The synthetic method of ZnO/ZnGa2O4 heterojunction has potential commercial value and can be applied to other semiconductors heterojunctions with similar structure of X/XY.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.apsusc.2014.08.089</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0003-0020-6650</orcidid></addata></record> |
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| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Coprecipitation Cross-disciplinary physics: materials science rheology Degradation Exact sciences and technology Heterojunction Heterojunctions One-pot Photocatalysis Photocatalysts Photocatalytic Physics Semiconductors Synthesis Zinc oxide ZnGa2O4 ZnO |
| title | One-pot synthesis of ZnO/ZnGa2O4 heterojunction with X/XY structure for improved photocatalytic activity |
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