Article(id=1322942864078025306, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942849381183980, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210067, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1611590400000, receivedDateStr=2021-01-26, revisedDate=1614268800000, revisedDateStr=2021-02-26, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343757885, onlineDateStr=2026-10-30, pubDate=1634659200000, pubDateStr=2021-10-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343757885, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343757885, creator=13701087609, updateTime=1793343757885, updator=13701087609, issue=Issue{id=1322942849381183980, tenantId=1146029695717560320, journalId=1263187385517883426, year='2021', volume='49', issue='10', pageStart='2045', pageEnd='2312', issueExtLink='null', onlineDate='null', pubDate='1634659200000', pubDateStr='2021-10-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343754382, creator='13701087609', updateTime=1793345931656, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322951981580562527, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942849381183980, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322951981584756832, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942849381183980, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2053, endPage=2060, ext={EN=ArticleExt(id=1322942864388403803, articleId=1322942864078025306, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Controllable Preparation and Photocatalytic Performance of Graphitic Carbon Nitride Nanosheets, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

A series of graphitic carbon nitride (g-C3N4) nanosheets with controllable thicknesses were prepared by a thermal polymerization method with different ratios of precursor melamine and urea. The nanosheets were characterized by X-ray diffraction, scanning electron microscopy, atomic force microscopy, specific surface area measurement, ultraviolet-visible spectroscopy and photoluminescence, respectively, which were used for the photocatalytic degradation of Rhodamine B (RhB). The results show that g-C3N4 is the thinnest (1∶8-CN) with the thickness of 3.5 nm when the ratio of melamine to urea is 1∶8. Its specific surface area is 6 times greater than that of g-C3N4 prepared using only melamine (assigned as M-CN). The photoelectric analysis indicates that 1∶8-CN has a higher separation efficiency of photogenerated carriers. Under the visible-light, the photocatalytic degradation rate of RhB by 1∶8-CN can reach 96.2%, which is 1.9 times greater than that of M-CN. Besides, the photocatalytic degradation mechanism of 1∶8-CN toward RhB is since the electrons generated by the separation of photogenerated electron-hole pairs combine with O2 to generate·O2-, and then·O2- oxidizes RhB into CO2 and H2O, and the holes do hardly participate in the reaction.

, authors=Feiyang DUAN, Anning ZHOU, Fuxin CHEN, Jie LING, Mengdan MA, Xinyu JIA, authorsList=Feiyang DUAN, Anning ZHOU, Fuxin CHEN, Jie LING, Mengdan MA, Xinyu JIA, authorCompany=null, correspAuthors=Anning ZHOU, authorNote=

DUAN Feiyang (1995—), male, Master candidate. E-mail:

, correspAuthorsNote=
ZHOU Anning (1962—), male, Ph. D., Professor. E-mail:
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通过调控前驱体三聚氰胺和尿素比例采用热聚合法得到一系列厚度可控的石墨相氮化碳(g-C3N4)纳米片。采用X射线粉末衍射、扫描电镜、原子力显微镜、比表面积测试、紫外可见光谱和荧光光谱等手段对纳米片的结构和性能进行了表征,并探讨了其光催化降解罗丹明B(RhB)的性能。结果表明:当三聚氰胺和尿素比例为1∶8时g-C3N4最薄(1∶8-CN),厚度仅为3.518 nm,同时1∶8-CN的比表面积是以三聚氰胺为原料制备的g-C3N4(M-CN)的7倍。光电学分析表明,1∶8-CN具有更高的光生载流子分离效率。在可见光照射下,1∶8-CN对RhB的光催化降解率可以达到96.2%,是M-CN的1.9倍。1∶8-CN光催化降解RhB的反应机理表现为:光生电子-空穴对分离产生的电子与O2结合生成·O2-,·O2-将RhB氧化生成CO2和H2O,空穴几乎不参与反应。

, authors=段飞阳, 周安宁, 陈福欣, 凌洁, 马梦丹, 贾忻宇, authorsList=段飞阳, 周安宁, 陈福欣, 凌洁, 马梦丹, 贾忻宇, authorCompany=null, correspAuthors=周安宁, authorNote=

段飞阳(1995—),男,硕士研究生。

, correspAuthorsNote=
周安宁(1962—),男,博士,教授。
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段飞阳(1995—),男,硕士研究生。

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段飞阳(1995—),男,硕士研究生。

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石墨相氮化碳纳米片的可控制备及光催化性能
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段飞阳 , 周安宁 , 陈福欣 , 凌洁 , 马梦丹 , 贾忻宇
硅酸盐学报 | 2021,49(10): 2053-2060
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硅酸盐学报 | 2021 , 49 (10) : 2053 -2060
石墨相氮化碳纳米片的可控制备及光催化性能
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段飞阳 , 周安宁 , 陈福欣, 凌洁, 马梦丹, 贾忻宇
作者信息
  • 西安科技大学化学与化工学院,西安 710054
通讯作者:
周安宁(1962—),男,博士,教授。
作者简介:

段飞阳(1995—),男,硕士研究生。

Controllable Preparation and Photocatalytic Performance of Graphitic Carbon Nitride Nanosheets
Feiyang DUAN , Anning ZHOU , Fuxin CHEN, Jie LING, Mengdan MA, Xinyu JIA
Affiliations
  • School of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
  • Corresponding Author:
    ZHOU Anning (1962—), male, Ph. D., Professor. E-mail:

    DUAN Feiyang (1995—), male, Master candidate. E-mail:

出版时间: 2021-10-20 doi: 10.14062/j.issn.0454-5648.20210067
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通过调控前驱体三聚氰胺和尿素比例采用热聚合法得到一系列厚度可控的石墨相氮化碳(g-C3N4)纳米片。采用X射线粉末衍射、扫描电镜、原子力显微镜、比表面积测试、紫外可见光谱和荧光光谱等手段对纳米片的结构和性能进行了表征,并探讨了其光催化降解罗丹明B(RhB)的性能。结果表明:当三聚氰胺和尿素比例为1∶8时g-C3N4最薄(1∶8-CN),厚度仅为3.518 nm,同时1∶8-CN的比表面积是以三聚氰胺为原料制备的g-C3N4(M-CN)的7倍。光电学分析表明,1∶8-CN具有更高的光生载流子分离效率。在可见光照射下,1∶8-CN对RhB的光催化降解率可以达到96.2%,是M-CN的1.9倍。1∶8-CN光催化降解RhB的反应机理表现为:光生电子-空穴对分离产生的电子与O2结合生成·O2-,·O2-将RhB氧化生成CO2和H2O,空穴几乎不参与反应。

石墨相氮化碳纳米片  /  光催化  /  反应机理

A series of graphitic carbon nitride (g-C3N4) nanosheets with controllable thicknesses were prepared by a thermal polymerization method with different ratios of precursor melamine and urea. The nanosheets were characterized by X-ray diffraction, scanning electron microscopy, atomic force microscopy, specific surface area measurement, ultraviolet-visible spectroscopy and photoluminescence, respectively, which were used for the photocatalytic degradation of Rhodamine B (RhB). The results show that g-C3N4 is the thinnest (1∶8-CN) with the thickness of 3.5 nm when the ratio of melamine to urea is 1∶8. Its specific surface area is 6 times greater than that of g-C3N4 prepared using only melamine (assigned as M-CN). The photoelectric analysis indicates that 1∶8-CN has a higher separation efficiency of photogenerated carriers. Under the visible-light, the photocatalytic degradation rate of RhB by 1∶8-CN can reach 96.2%, which is 1.9 times greater than that of M-CN. Besides, the photocatalytic degradation mechanism of 1∶8-CN toward RhB is since the electrons generated by the separation of photogenerated electron-hole pairs combine with O2 to generate·O2-, and then·O2- oxidizes RhB into CO2 and H2O, and the holes do hardly participate in the reaction.

graphitic carbon nitride nanosheets  /  photocatalysis  /  reaction mechanism
段飞阳, 周安宁, 陈福欣, 凌洁, 马梦丹, 贾忻宇. 石墨相氮化碳纳米片的可控制备及光催化性能. 硅酸盐学报, 2021 , 49 (10) : 2053 -2060 . DOI: 10.14062/j.issn.0454-5648.20210067
Feiyang DUAN, Anning ZHOU, Fuxin CHEN, Jie LING, Mengdan MA, Xinyu JIA. Controllable Preparation and Photocatalytic Performance of Graphitic Carbon Nitride Nanosheets[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (10) : 2053 -2060 . DOI: 10.14062/j.issn.0454-5648.20210067
  • 国家自然科学基金(51674194)
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doi: 10.14062/j.issn.0454-5648.20210067
  • 接收时间:2021-01-26
  • 首发时间:2026-10-30
  • 出版时间:2021-10-20
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  • 收稿日期:2021-01-26
  • 修回日期:2021-02-26
基金
国家自然科学基金(51674194)
作者信息
    西安科技大学化学与化工学院,西安 710054

通讯作者:

周安宁(1962—),男,博士,教授。
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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