Article(id=1321927188857868836, tenantId=1146029695717560320, journalId=1220038251117760515, issueId=1321927171292123557, articleNumber=null, orderNo=null, doi=10.11868/j.issn.1001-4381.2025.000244, pmid=null, cstr=32421.14.j.issn.1001-4381.2025.000244, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1745856000000, receivedDateStr=2025-04-29, revisedDate=null, revisedDateStr=null, acceptedDate=1751299200000, acceptedDateStr=2025-07-01, onlineDate=1793101602042, onlineDateStr=2026-10-27, pubDate=1773936000000, pubDateStr=2026-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793101602042, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793101602042, creator=13701087609, updateTime=1793101602042, updator=13701087609, issue=Issue{id=1321927171292123557, tenantId=1146029695717560320, journalId=1220038251117760515, year='2026', volume='54', issue='3', pageStart='1', pageEnd='272', issueExtLink='null', onlineDate='null', pubDate='1773936000000', pubDateStr='2026-03-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793101597855, creator='13701087609', updateTime=1793101597855, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=261, endPage=272, ext={EN=ArticleExt(id=1321927189071778341, articleId=1321927188857868836, tenantId=1146029695717560320, journalId=1220038251117760515, language=EN, title=CDs/CuO
x nanocomposites for peroxydisulfate activation toward tetracycline degradation, columnId=1220689384450478826, journalTitle=Journal of Materials Engineering, columnName=RESEARCH ARTICLE, runingTitle=null, highlight=null, articleAbstract=
The construction of abundant active sites and enhancement of pollutant-specific selectivity on heterogeneous catalyst surfaces are crucial for efficient pollutant removal via persulfate-based advanced oxidation processes. The incorporation of carbon dots (CDs) into copper-based oxides to construct multivalent metal species can significantly improve the activation capability of peroxydisulfate (PS). In this study,a simple calcination method is employed to regulate the valence state of Cu in copper-based oxides using CDs,resulting in the synthesis of a CDs/CuO x composite with multiphase structures containing Cu0,Cu2O,and CuO. In the degradation of tetracycline (TC) (used as a model pollutant),the CDs/CuO x composite excellent activation capability. Under the reaction conditions of TC concentration (50 mg/L),PS concentration (0.5 mmol/L),and catalyst concentration (0.06 g/L),the degradation efficiency of TC reaches 99% within 60 min,with an apparent reaction rate constant of 0.066 min-1. This reaction rate is 6.6 times that of CuO. Cu⁰ acts as a continuous electron donor,not only induces the generation of selective singlet oxygen (¹O₂) but,more importantly,promotes the Cu2+/Cu+ cycle reaction. This cycle generates hydroxyl radicals (·OH) and improves activation efficiency. The use of CDs regulates the coexistence of multivalent Cu active sites in the catalyst,which enhances the activation capability for PS,providing a new idea for the efficient design of catalysts.
, authors=Ernan PANG, Shijia LI, authorsList=Ernan PANG, Shijia LI, authorCompany=null, correspAuthors=Ernan PANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1321927192720822840, articleId=1321927188857868836, tenantId=1146029695717560320, journalId=1220038251117760515, language=CN, title=CDs/CuO
x 纳米复合材料活化过二硫酸盐降解盐酸四环素, columnId=1220689384622445292, journalTitle=材料工程, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
在非均相催化剂表面构建丰富的活性位点和增强对污染物的选择性是基于过硫酸盐的高级氧化法去除污染物的关键。利用碳点(CDs)在铜基氧化物中构筑多价态金属有助于提高对过二硫酸盐(PS)的活化能力。本研究采用简单的煅烧法利用CDs对铜基氧化物中Cu元素的价态进行调控,合成了具有Cu0、Cu2O和CuO多相结构的CDs/CuO x 复合物。在以四环素(TC)为模型的污染物降解中,CDs/CuO x 展现出优异的活化能力。在TC浓度为50 mg/L、PS浓度为0.5 mmol/L和催化剂浓度为0.06 g/L的反应条件下,在60 min内对TC的降解率达到99%,表观反应速率常数为0.066 min-1,反应速率是CuO的6.6倍。Cu0作为持续的电子供体,不仅导致具有选择性的单线态氧(1O2)生成,更重要的是促进了Cu2+/Cu+循环反应,产生了羟基自由基(·OH),提高了活化效率。利用CDs调控在催化剂中实现多价态Cu活性位点的并存,提高了对PS的活化能力,为高效设计催化剂提供了新思路。
, authors=庞尔楠, 李世嘉, authorsList=庞尔楠, 李世嘉, authorCompany=null, correspAuthors=庞尔楠, authorNote=null, correspAuthorsNote=
庞尔楠(1985—),女,讲师,博士,主要从事复合功能材料的合成及在高级氧化法降解水中污染物的应用研究,联系地址:山西省晋中市文华街369号山西工程科技职业大学(030619),E-mail:
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476: 146565., articleTitle=Flexible regulation of persulfate activation mechanisms through tuning Cu valence in CuBTC-derived copper oxide catalysts for improved pollutant degradation, refAbstract=null)], funds=[Fund(id=1321927197821096548, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, awardId=202403021222348, language=CN, fundingSource=山西省基础研究计划(202403021222348), fundOrder=null, country=null), Fund(id=1321927197896594021, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, awardId=202229, language=CN, fundingSource=山西工程科技职业大学校科技创新基金(202229), fundOrder=null, country=null), Fund(id=1321927197972091494, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, awardId=2023HX021, language=CN, fundingSource=山西工程科技职业大学横向项目(2023HX021), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1321927192951509561, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, xref=null, ext=[AuthorCompanyExt(id=1321927192964092474, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, companyId=1321927192951509561, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Institute of Traffic Engineering,Shanxi Vocational University of Engineering Science and Technology,Taiyuan 030619,China), AuthorCompanyExt(id=1321927192972481083, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, companyId=1321927192951509561, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=山西工程科技职业大学 交通工程学院,太原 030619)])], figs=[ArticleFig(id=1321927194377572944, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=EN, label=Fig.1, caption=
XRD patterns(a),Raman spectra(b),and FT-IR spectra(c) of different catalysts,SEM(d),TEM(e),and HRTEM(f) images of CuO,and SEM(g),TEM(h),and HRTEM(i) images of CDs/CuO x -30, figureFileSmall=NaZl04mcIb3kf2VtumWUlw==, figureFileBig=uP5nf8aW4MaaeR8FMxYz8A==, tableContent=null), ArticleFig(id=1321927196038517329, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=CN, label=图1, caption=
不同催化剂的XRD谱(a)、Raman谱(b)和FT-IR谱(c),CuO的SEM(d)、TEM(e)和HRTEM(f)图,及CDs/CuO x -30的SEM(g)、TEM(h)和HRTEM图(i), figureFileSmall=NaZl04mcIb3kf2VtumWUlw==, figureFileBig=uP5nf8aW4MaaeR8FMxYz8A==, tableContent=null), ArticleFig(id=1321927196265009746, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=EN, label=Fig.2, caption=
XPS Cu 2p spectra of CD/CuO x -30 and CuO(a),XPS C 1s spectrum of CDs/CuO x -30(b),and N2 adsorption-desorption isotherms(c),corresponding pore size distributions plots(d),TGA thermogram curves(e),and electrochemical impedance plots(f) of CD/CuO x -30 and CuO, figureFileSmall=o25AdipGryGyb1YDGdv90Q==, figureFileBig=HfTtw1iv0EbBo9BnDGbkyA==, tableContent=null), ArticleFig(id=1321927196432781907, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=CN, label=图2, caption=
CDs/CuO x -30和CuO的Cu 2pXPS谱(a),CDs/CuO x -30的C 1s XPS谱图(b),CDs/CuO x -30和CuO的N2吸附-脱附等温曲线(c)、相应的孔径分布图(d)、热重分析曲线(e)和电化学阻抗图(f), figureFileSmall=o25AdipGryGyb1YDGdv90Q==, figureFileBig=HfTtw1iv0EbBo9BnDGbkyA==, tableContent=null), ArticleFig(id=1321927196525056596, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=EN, label=Fig.3, caption=
Efficiency of TC degradation by CuO and CDs/CuO x -30 catalysts(a) and corresponding pseudo first order kinetic curves(b), figureFileSmall=Kf+ooGe9dQMc99t6AD+/aA==, figureFileBig=GP7YlTATtjglmAQ46nmSig==, tableContent=null), ArticleFig(id=1321927196608942677, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=CN, label=图3, caption=
CuO和CDs/CuO x -30催化剂降解TC的效率(a)和拟一级动力学曲线(b), figureFileSmall=Kf+ooGe9dQMc99t6AD+/aA==, figureFileBig=GP7YlTATtjglmAQ46nmSig==, tableContent=null), ArticleFig(id=1321927196680245846, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=EN, label=Fig.4, caption=
Comparison curves of TC removal efficiency(a),pseudo-first-order kinetic curves(b),and XRD patterns(c) for catalysts with different CDs contents,comparison curves of TC removal efficiency(d) and corresponding XRD patterns(e) for different calcination atmospheres,and comparison curves of TC removal efficiency(f) for different calcination temperatures
, figureFileSmall=fRgLOdCcQVV6yzsrERcltg==, figureFileBig=XZ1gXP2vGBWkFWfVyAFmdw==, tableContent=null), ArticleFig(id=1321927196751549015, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=CN, label=图4, caption=
不同碳点含量催化剂的去除TC效率的比较曲线(a),相应的拟一级动力学曲线(b)及XRD图谱(c),不同煅烧气氛下催化剂的去除TC效率的比较曲线(d)及其相应的XRD图谱(e),及不同煅烧温度下去除TC效率的比较曲线(f)
, figureFileSmall=fRgLOdCcQVV6yzsrERcltg==, figureFileBig=XZ1gXP2vGBWkFWfVyAFmdw==, tableContent=null), ArticleFig(id=1321927196848018008, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=EN, label=Fig.5, caption=
Effect of different PS concentrations(a),initial pH values(b),and inorganic anions(c) on TC degradation efficiency of CDs/CuO x -30, figureFileSmall=RinrVRF+tCFLWHByLGFOdg==, figureFileBig=5oJgbJe8XaiYgkzeKsqOIw==, tableContent=null), ArticleFig(id=1321927196915126873, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=CN, label=图5, caption=
不同PS浓度(a)、初始pH值(b)和无机阴离子(c)对CDs/CuO x -30降解TC效率的影响, figureFileSmall=RinrVRF+tCFLWHByLGFOdg==, figureFileBig=5oJgbJe8XaiYgkzeKsqOIw==, tableContent=null), ArticleFig(id=1321927196994818650, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=EN, label=Fig.6, caption=
XRD patterns(a) and Raman spectra(b) of the CDs/CuO x -30 before and after catalysis,and its cycling stability of CDs/CuO x -30 for TC degradation(c), figureFileSmall=NFu8B78+x9kqs9duo6JvUg==, figureFileBig=5JyuXbi0BfY8qqctx9GSRw==, tableContent=null), ArticleFig(id=1321927197066121819, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=CN, label=图6, caption=
CDs/CuO x -30催化反应前后的XRD谱(a)和Raman谱(b)及其降解TC的循环稳定性(c), figureFileSmall=NFu8B78+x9kqs9duo6JvUg==, figureFileBig=5JyuXbi0BfY8qqctx9GSRw==, tableContent=null), ArticleFig(id=1321927197133230684, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=EN, label=Fig.7, caption=
Effect of scavengers on TC degradation efficiency(1) and their pseudo first order kinetic curves(2) of CDs/CuO x -30(a) and CuO(b), figureFileSmall=k/WTdKqDCIf2TXt0eZb92Q==, figureFileBig=SE577ADUYG+l2iPthdWWTg==, tableContent=null), ArticleFig(id=1321927197221311069, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=CN, label=图7, caption=
淬灭剂对CDs/CuO x -30(a)和CuO(b)降解TC效率的影响(1)及其拟一级动力学曲线(2), figureFileSmall=k/WTdKqDCIf2TXt0eZb92Q==, figureFileBig=SE577ADUYG+l2iPthdWWTg==, tableContent=null), ArticleFig(id=1321927197326168670, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=EN, label=Fig.8, caption=
EPR spectra of DMPO-·OH,DMPO-,and DMPO-X(a),DMPO-(b),and TEMP-1O2(c) for CuO and CDs/CuO x -30 activated PS, figureFileSmall=xZUIjg56qX1ItQuIvlQYqg==, figureFileBig=9JitEqEB6zWw1gF4xDIfhg==, tableContent=null), ArticleFig(id=1321927197397471839, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=CN, label=图8, caption=
CuO和CDs/CuO x -30活化PS的DMPO-·OH、DMPO-、DMPO-X(a),DMPO-(b)和TEMP-1O2(c)的EPR光谱, figureFileSmall=xZUIjg56qX1ItQuIvlQYqg==, figureFileBig=9JitEqEB6zWw1gF4xDIfhg==, tableContent=null), ArticleFig(id=1321927197460386400, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=EN, label=Fig.9, caption=
Cu 2p XPS spectra of CDs/CuO x -30 before and after use(a),CV curves of CDs/CuO x -30 and CuO(b),, figureFileSmall=Thq0texl66BS5lvlhWmKwg==, figureFileBig=E6l+xou5uf6DBB4ImISaHg==, tableContent=null), ArticleFig(id=1321927197540078177, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=CN, label=图9, caption=
CDs/CuO x -30使用前后的Cu 2pXPS谱(a),CDs/CuO x -30和CuO的CV曲线(b),及CDs/CuO x -30对PS响应的电流i-t曲线(c)and amperometric i-t curve of CDs/CuO x -30 in response to PS of CDs/CuO x -30(c)
, figureFileSmall=Thq0texl66BS5lvlhWmKwg==, figureFileBig=E6l+xou5uf6DBB4ImISaHg==, tableContent=null), ArticleFig(id=1321927197615575650, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=EN, label=Table 1, caption=
Comparison of CD/CuO x -30 with other catalysts in activating persulfate for pollutants degradation
, figureFileSmall=null, figureFileBig=null, tableContent=
| Catalyst | Reaction condition | Degradation efficiency/% | km/(L·min-1·g-1) | Ref. |
|---|
| Cu-Cu x O@C | [PS]=4 mmol/L [Catalyst]=0.5 g/L [Phenol]=20 mg/L | 100(120 min) | 0.043 | [25] |
| N-rGO/CuO | [PS]=1 mmol/L [Catalyst]=0.2 g/L [TC]=20 mg/L | 97(90 min) | 0.007 | [26] |
| HEPs@CS | [PS]=1.3 mmol/L [Catalyst]=0.2 g/L [RhB]=50 mg/L | 99.7(10 min) | 0.22 | [13] |
| Cu3P/biochar | [PS]=3 mmol/L [Catalyst]=0.15 g/L [SMX]=10 mg/L | 100(180 min) | 0.002 | [27] |
| CuFeBC | [PS]=6 mmol/L [Catalyst]=0.5 g/L [NOR]=30 mg/L | 94.5(180 min) | 0.0063 | [19] |
| EGB-900 | [PS]=4 mmol/L [Catalyst]=0.05 g/L [SMX]=5 mg/L | 95(90 min) | 0.002 | [28] |
| CuO | [PS]=2.5 mmol/L [Catalyst]=0.5 g/L [PCA]=0.5 mmol/L | 100(300 min) | 0.0048 | [29] |
| CuO/HNTs | [PS]=7 mmol/L [Catalyst]=0.5 g/L [PGT]=2 mg/L | 100(480 min) | 0.000011 | [30] |
| CDs/CuO x -30 | [PS]=0.5 mmol/L [Catalyst]=0.06 g/L [TC]=50 mg/L | 99(60 min) | 0.23 | This work |
), ArticleFig(id=1321927197691073123, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321927188857868836, language=CN, label=表1, caption=
CDs/CuO x -30与其他催化剂活化过硫酸盐降解污染物的比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| Catalyst | Reaction condition | Degradation efficiency/% | km/(L·min-1·g-1) | Ref. |
|---|
| Cu-Cu x O@C | [PS]=4 mmol/L [Catalyst]=0.5 g/L [Phenol]=20 mg/L | 100(120 min) | 0.043 | [25] |
| N-rGO/CuO | [PS]=1 mmol/L [Catalyst]=0.2 g/L [TC]=20 mg/L | 97(90 min) | 0.007 | [26] |
| HEPs@CS | [PS]=1.3 mmol/L [Catalyst]=0.2 g/L [RhB]=50 mg/L | 99.7(10 min) | 0.22 | [13] |
| Cu3P/biochar | [PS]=3 mmol/L [Catalyst]=0.15 g/L [SMX]=10 mg/L | 100(180 min) | 0.002 | [27] |
| CuFeBC | [PS]=6 mmol/L [Catalyst]=0.5 g/L [NOR]=30 mg/L | 94.5(180 min) | 0.0063 | [19] |
| EGB-900 | [PS]=4 mmol/L [Catalyst]=0.05 g/L [SMX]=5 mg/L | 95(90 min) | 0.002 | [28] |
| CuO | [PS]=2.5 mmol/L [Catalyst]=0.5 g/L [PCA]=0.5 mmol/L | 100(300 min) | 0.0048 | [29] |
| CuO/HNTs | [PS]=7 mmol/L [Catalyst]=0.5 g/L [PGT]=2 mg/L | 100(480 min) | 0.000011 | [30] |
| CDs/CuO x -30 | [PS]=0.5 mmol/L [Catalyst]=0.06 g/L [TC]=50 mg/L | 99(60 min) | 0.23 | This work |
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