Article(id=1322943309387276607, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942634976752425, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210096, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1612022400000, receivedDateStr=2021-01-31, revisedDate=1614182400000, revisedDateStr=2021-02-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343864056, onlineDateStr=2026-10-30, pubDate=1626710400000, pubDateStr=2021-07-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343864056, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343864056, creator=13701087609, updateTime=1793343864056, updator=13701087609, issue=Issue{id=1322942634976752425, tenantId=1146029695717560320, journalId=1263187385517883426, year='2021', volume='49', issue='7', pageStart='1249', pageEnd='1518', issueExtLink='null', onlineDate='null', pubDate='1626710400000', pubDateStr='2021-07-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343703264, creator='13701087609', updateTime=1793345819416, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322951510828659213, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942634976752425, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322951510828659214, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942634976752425, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1337, endPage=1346, ext={EN=ArticleExt(id=1322943310058365248, articleId=1322943309387276607, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Photocatalysis Coupled with Persulfate Oxidation over Nitrogen Vacancies Modified g-C3N4/kaolinite Composite for Highly Efficient Removal of Bisphenol A, columnId=1322942641213682516, journalTitle=Journal of the Chinese Ceramic Society, columnName=Special Issue on Mineral Material, runingTitle=null, highlight=null, articleAbstract=

A new type of graphite carbon nitride (g-C3N4)/kaolinite composites with abundant nitrogen vacancies was prepared by using a facile thermal reduction method. The composites were characterized by using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectrometer(FTIR), UV-Vis absorption spectroscopy and X-ray photoelectron spectrometry (XPS). Bisphenol A (BPA) was used as the target pollutant to evaluate the catalytic activity of the composites through photocatalysis coupled with persulfate oxidation. It was observed that the degradation rate of NGK-10:1 was 9.98 and 5.72 times higher than those of g-C3N4 and nitrogen vacancies modified g-C3N4, respectively. On one hand, the large specific surface area and high porosity provided with more reactive site and hence promoted the adsorption capacity of pollutants on the composites. On the other hand, the formation of nitrogen vacancies acted as the photo-generated electron trap centers and thus inhibited the recombination of electron-hole pairs. In addition, there would be more electrons to activate PMS, thus promoting the formation of SO4•- and ·OH. Quenching experimental results showed that the non-radical pathway played the major role in the removal of BPA.

, authors=Xiangwei ZHANG, Chunquan LI, Shuilin ZHENG, Zhiming SUN, authorsList=Xiangwei ZHANG, Chunquan LI, Shuilin ZHENG, Zhiming SUN, authorCompany=null, correspAuthors=Zhiming SUN, authorNote=

ZHANG Xiangwei (1995-), male, Doctor candidate. E-mail:

, correspAuthorsNote=
SUN Zhiming (1986-), male, Ph.D., Professor. E-mail:
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采用热还原法制备了一种具有氮空位的石墨相氮化碳(g-C3N4)/高岭石复合材料,利用扫描电子显微镜、X射线衍射、红外光谱、紫外-可见分光光度法、X射线光电子能谱仪等手段对复合材料进行表征,并以双酚A(BPA)为目标污染物,系统考察了复合材料在可见光/过硫酸盐催化降解体系中的催化活性。结果表明:优化条件下制备的样品NGK-10:1对BPA的降解效率最高,分别为g-C3N4和氮空位g-C3N4的9.98和5.72倍,一方面归因于较大的比表面积和孔体积为污染物吸附与降解提供了更多的反应活性位点,另一方面氮空位的形成既可以作为光生电子的捕获中心,提升光生载流子的迁移和分离效率,同时也为PMS的高效活化提供了电子,促进了SO4•-和·OH的形成,进而实现对BPA降解过程的协同强化;自由基淬灭实验发现非活性自由基起到主要氧化降解作用。

, authors=张祥伟, 李春全, 郑水林, 孙志明, authorsList=张祥伟, 李春全, 郑水林, 孙志明, authorCompany=null, correspAuthors=孙志明, authorNote=

张祥伟(1995—),男,博士研究生。

, correspAuthorsNote=
孙志明(1986—),男,博士,教授。
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张祥伟(1995—),男,博士研究生。

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张祥伟(1995—),男,博士研究生。

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热还原法制备g-C3N4/高岭石复合材料及其光/过硫酸盐协同催化性能
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张祥伟 , 李春全 , 郑水林 , 孙志明
硅酸盐学报 | 矿物材料专题 2021,49(7): 1337-1346
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硅酸盐学报 |矿物材料专题 2021 , 49 (7) : 1337 -1346
热还原法制备g-C3N4/高岭石复合材料及其光/过硫酸盐协同催化性能
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张祥伟 , 李春全, 郑水林, 孙志明
作者信息
  • 中国矿业大学(北京)化学与环境工程学院,北京 100083
通讯作者:
孙志明(1986—),男,博士,教授。
作者简介:

张祥伟(1995—),男,博士研究生。

Photocatalysis Coupled with Persulfate Oxidation over Nitrogen Vacancies Modified g-C3N4/kaolinite Composite for Highly Efficient Removal of Bisphenol A
Xiangwei ZHANG , Chunquan LI, Shuilin ZHENG, Zhiming SUN
Affiliations
  • School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
  • Corresponding Author:
    SUN Zhiming (1986-), male, Ph.D., Professor. E-mail:

    ZHANG Xiangwei (1995-), male, Doctor candidate. E-mail:

出版时间: 2021-07-20 doi: 10.14062/j.issn.0454-5648.20210096
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采用热还原法制备了一种具有氮空位的石墨相氮化碳(g-C3N4)/高岭石复合材料,利用扫描电子显微镜、X射线衍射、红外光谱、紫外-可见分光光度法、X射线光电子能谱仪等手段对复合材料进行表征,并以双酚A(BPA)为目标污染物,系统考察了复合材料在可见光/过硫酸盐催化降解体系中的催化活性。结果表明:优化条件下制备的样品NGK-10:1对BPA的降解效率最高,分别为g-C3N4和氮空位g-C3N4的9.98和5.72倍,一方面归因于较大的比表面积和孔体积为污染物吸附与降解提供了更多的反应活性位点,另一方面氮空位的形成既可以作为光生电子的捕获中心,提升光生载流子的迁移和分离效率,同时也为PMS的高效活化提供了电子,促进了SO4•-和·OH的形成,进而实现对BPA降解过程的协同强化;自由基淬灭实验发现非活性自由基起到主要氧化降解作用。

高岭石  /  光催化  /  过硫酸盐活化  /  石墨相氮化碳  /  双酚A

A new type of graphite carbon nitride (g-C3N4)/kaolinite composites with abundant nitrogen vacancies was prepared by using a facile thermal reduction method. The composites were characterized by using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectrometer(FTIR), UV-Vis absorption spectroscopy and X-ray photoelectron spectrometry (XPS). Bisphenol A (BPA) was used as the target pollutant to evaluate the catalytic activity of the composites through photocatalysis coupled with persulfate oxidation. It was observed that the degradation rate of NGK-10:1 was 9.98 and 5.72 times higher than those of g-C3N4 and nitrogen vacancies modified g-C3N4, respectively. On one hand, the large specific surface area and high porosity provided with more reactive site and hence promoted the adsorption capacity of pollutants on the composites. On the other hand, the formation of nitrogen vacancies acted as the photo-generated electron trap centers and thus inhibited the recombination of electron-hole pairs. In addition, there would be more electrons to activate PMS, thus promoting the formation of SO4•- and ·OH. Quenching experimental results showed that the non-radical pathway played the major role in the removal of BPA.

kaolinite  /  photocatalysis  /  persulfate oxidation  /  graphite carbon nitride  /  bisphenol A
张祥伟, 李春全, 郑水林, 孙志明. 热还原法制备g-C3N4/高岭石复合材料及其光/过硫酸盐协同催化性能. 硅酸盐学报, 2021 , 49 (7) : 1337 -1346 . DOI: 10.14062/j.issn.0454-5648.20210096
Xiangwei ZHANG, Chunquan LI, Shuilin ZHENG, Zhiming SUN. Photocatalysis Coupled with Persulfate Oxidation over Nitrogen Vacancies Modified g-C3N4/kaolinite Composite for Highly Efficient Removal of Bisphenol A[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (7) : 1337 -1346 . DOI: 10.14062/j.issn.0454-5648.20210096
  • 北京市自然科学基金(2202044)
  • 中央高校基本科研业务费专项资金资助(2021JCCXHH04)
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2021年第49卷第7期
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doi: 10.14062/j.issn.0454-5648.20210096
  • 接收时间:2021-01-31
  • 首发时间:2026-10-30
  • 出版时间:2021-07-20
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  • 收稿日期:2021-01-31
  • 修回日期:2021-02-25
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北京市自然科学基金(2202044)
中央高校基本科研业务费专项资金资助(2021JCCXHH04)
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    中国矿业大学(北京)化学与环境工程学院,北京 100083

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孙志明(1986—),男,博士,教授。
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2种不同金属材料的力学参数
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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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