Article(id=1314917762972091086, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314917704910340427, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1736179200000, receivedDateStr=2025-01-07, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791430424683, onlineDateStr=2026-10-08, pubDate=1755619200000, pubDateStr=2025-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791430424683, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791430424683, creator=13701087609, updateTime=1791430424683, updator=13701087609, issue=Issue{id=1314917704910340427, tenantId=1146029695717560320, journalId=1234093305789726721, year='2025', volume='45', issue='8', pageStart='4145', pageEnd='4736', issueExtLink='null', onlineDate='null', pubDate='1755619200000', pubDateStr='2025-08-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791430410840, creator='13701087609', updateTime=1791431909627, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314923991341555972, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314917704910340427, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314923991345750277, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314917704910340427, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=4434, endPage=4447, ext={EN=ArticleExt(id=1314917763190194895, articleId=1314917762972091086, tenantId=1146029695717560320, journalId=1234093305789726721, language=EN, title=Regulation of red mud alkalinity by biomass and its catalytic performance and mechanism in activating peroxymonosulfate for iopamidol degradation, columnId=1240689598498656298, journalTitle=China Environmental Science, columnName=Solid Waste, runingTitle=null, highlight=null, articleAbstract=

Red mud (RM) was selected as the Fe source and orange peel (OP, pH=3.0~4.9) as the carbon source, RM@OPB composite was prepared through impregnation-pyrolysis method. The regulation of red mud alkalinity by orange peel and the influencing factors were analyzed. The catalytic performance of RM@OPB in activating PMS for IPM degradation was investigated as well. The mechanism of IPM degradation in the RM@OPB/PMS system was further explored through the combination of HPLC/MS analysis, active species quenching experiments, fluorescence spectroscopy, electron paramagnetic resonance (EPR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) of the pre-post-reaction of RM@OPB. Finally, the ecological toxicity of IPM and its intermediates was predicted using the Ecological Structure Activity Relationships (ECOSAR) software. The results demonstrated that orange peel co-impregnation effectively regulated the alkalinity of red mud, with the leachate pH decreasing from 11.0 to 7.27, at impregnation time and mRM: mOP of 24h and 1:2.5, respectively. During the pyrolysis, reductive gases generated from orange peel facilitated the transformation of Fe2O3 in RM into Fe3O4 and Fe0, magnetic RM@OPB materials was manufactured. Notably, RM@OPB-800exhibited effective catalytic performance for IPM degradation, with the degradation of 8mg/L IPM achieving 96.5% in 60min (k=0.065min-1), under the experimental conditions of 0.5g/L RM@OPB-800, 1.0mmol/L PMS, and initial pH=6.7, respectively. Singlet oxygen (1O2) was identified as the dominant reactive species in the RM@OPB-800/PMS system. IPM degraded mainly through side-chain amide hydrolysis and oxidation, dehydrogenation, deiodination, and hydroxyl addition, with 12intermediates generated. ECOSAR analysis confirmed no highly toxic intermediates were formed. The findings can provide some critical insights into the resource utilization of red mud.

, authors=Gui-zhen WANG1, Hong WEI1, *, Xue-tong HUANG1, mei-juan GAO1, 2, Ze-hui ZHANG1, Rui-jie TENG1, jun-qi SONG1, Feng PAN1, authorsList=Gui-zhen WANG, Hong WEI, Xue-tong HUANG, mei-juan GAO, Ze-hui ZHANG, Rui-jie TENG, jun-qi SONG, Feng PAN, authorCompany=null, correspAuthors=Hong WEI, 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=1314917763538322129, articleId=1314917762972091086, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=生物质对赤泥碱性的调控及其催化过—硫酸盐降解碘帕醇的性能及机理, columnId=1240689598737731645, journalTitle=中国环境科学, columnName=固体废物, runingTitle=null, highlight=null, articleAbstract=

选择赤泥(RM)作为Fe源,橙皮(OP,pH:3.0~4.9)作为RM脱碱的碳源,经浸渍、共热解制备RM@OPB催化材料,考察橙皮对赤泥碱性调节及影响因素.并探讨其催化过一硫酸盐(PMS)降解碘帕醇(IPM)的性能.通过活性物种淬灭实验和RM@OPB反应前后的X射线衍射(XRD)、X射线光电子能谱(XPS)等表征,探究其降解IPM的中间产物、降解途径及降解机理,并预测其生态毒性变化.结果表明,浸渍过程中,浸渍时间及橙皮/赤泥的质量比对赤泥碱性的降低均有影响,浸渍时间24h,mRM:mOP=1:2.5时,原始赤泥pH值由11.0降至7.27.热解过程中,生物质产生的还原性气体促进赤泥中Fe2O3向Fe3O4和Fe0的转化.其中,RM@OPB-800因Fe0的存在而表现出优异的催化性能.RM@OPB-800投加量0.5g/L,PMS浓度1.0mmol/L,初始pH=6.7,8mg/L的IPM在60min降解96.5%(kobs=0.065min-1).活性物种淬灭实验结果表明RM@OPB-800/PMS体系降解IPM的主要活性物种是1O2.IPM的降解主要包括侧链酰胺水解及氧化、脱氢、脱碘和羟基加成,共生成12种中间产物.研究结果表明橙皮改性RM可有效提高RM的资源化利用.

, authors=王桂珍1, 魏红1, *, 黄雪桐1, 高美娟1, 2, 张泽慧1, 滕锐杰1, 宋俊其1, 潘峰1, authorsList=王桂珍, 魏红, 黄雪桐, 高美娟, 张泽慧, 滕锐杰, 宋俊其, 潘峰, authorCompany=null, correspAuthors=魏红, authorNote=

王桂珍(1997-),女,内蒙古兴和人,硕士研究生,主要从事固体废物资源化利用方面的研究.发表论文1篇..

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* 责任作者,教授,
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王桂珍(1997-),女,内蒙古兴和人,硕士研究生,主要从事固体废物资源化利用方面的研究.发表论文1篇..

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王桂珍(1997-),女,内蒙古兴和人,硕士研究生,主要从事固体废物资源化利用方面的研究.发表论文1篇..

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生物质对赤泥碱性的调控及其催化过—硫酸盐降解碘帕醇的性能及机理
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王桂珍 1 , 魏红 1, * , 黄雪桐 1 , 高美娟 1, 2 , 张泽慧 1 , 滕锐杰 1 , 宋俊其 1 , 潘峰 1
中国环境科学 | 固体废物 2025,45(8): 4434-4447
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中国环境科学 |固体废物 2025 , 45 (8) : 4434 -4447
生物质对赤泥碱性的调控及其催化过—硫酸盐降解碘帕醇的性能及机理
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王桂珍(1997-),女,内蒙古兴和人,硕士研究生,主要从事固体废物资源化利用方面的研究.发表论文1篇..

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王桂珍(1997-),女,内蒙古兴和人,硕士研究生,主要从事固体废物资源化利用方面的研究.发表论文1篇..

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王桂珍1 , 魏红1, * , 黄雪桐1, 高美娟1, 2, 张泽慧1, 滕锐杰1, 宋俊其1, 潘峰1
作者信息
  • 1.西安理工大学,西北旱区生态水利国家重点实验室,陕西 西安 710048
  • 2.榆林职业技术学院,化学工程系,陕西 榆林 719000
通讯作者:
* 责任作者,教授,
作者简介:

王桂珍(1997-),女,内蒙古兴和人,硕士研究生,主要从事固体废物资源化利用方面的研究.发表论文1篇..

Regulation of red mud alkalinity by biomass and its catalytic performance and mechanism in activating peroxymonosulfate for iopamidol degradation
Gui-zhen WANG1 , Hong WEI1, * , Xue-tong HUANG1, mei-juan GAO1, 2, Ze-hui ZHANG1, Rui-jie TENG1, jun-qi SONG1, Feng PAN1
Affiliations
  • 1.State Key Laboratory of Water Engineering Ecology and Environment in Arid Area, Xi'an University of Technology, Xi'an 710048, China
  • 2.Chemical Engineering Department, Yulin Vocational and Technical College, Yulin 719000, China
出版时间: 2025-08-20
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选择赤泥(RM)作为Fe源,橙皮(OP,pH:3.0~4.9)作为RM脱碱的碳源,经浸渍、共热解制备RM@OPB催化材料,考察橙皮对赤泥碱性调节及影响因素.并探讨其催化过一硫酸盐(PMS)降解碘帕醇(IPM)的性能.通过活性物种淬灭实验和RM@OPB反应前后的X射线衍射(XRD)、X射线光电子能谱(XPS)等表征,探究其降解IPM的中间产物、降解途径及降解机理,并预测其生态毒性变化.结果表明,浸渍过程中,浸渍时间及橙皮/赤泥的质量比对赤泥碱性的降低均有影响,浸渍时间24h,mRM:mOP=1:2.5时,原始赤泥pH值由11.0降至7.27.热解过程中,生物质产生的还原性气体促进赤泥中Fe2O3向Fe3O4和Fe0的转化.其中,RM@OPB-800因Fe0的存在而表现出优异的催化性能.RM@OPB-800投加量0.5g/L,PMS浓度1.0mmol/L,初始pH=6.7,8mg/L的IPM在60min降解96.5%(kobs=0.065min-1).活性物种淬灭实验结果表明RM@OPB-800/PMS体系降解IPM的主要活性物种是1O2.IPM的降解主要包括侧链酰胺水解及氧化、脱氢、脱碘和羟基加成,共生成12种中间产物.研究结果表明橙皮改性RM可有效提高RM的资源化利用.

赤泥  /  橙皮  /  过一硫酸盐  /  高级氧化技术  /  碘帕醇

Red mud (RM) was selected as the Fe source and orange peel (OP, pH=3.0~4.9) as the carbon source, RM@OPB composite was prepared through impregnation-pyrolysis method. The regulation of red mud alkalinity by orange peel and the influencing factors were analyzed. The catalytic performance of RM@OPB in activating PMS for IPM degradation was investigated as well. The mechanism of IPM degradation in the RM@OPB/PMS system was further explored through the combination of HPLC/MS analysis, active species quenching experiments, fluorescence spectroscopy, electron paramagnetic resonance (EPR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) of the pre-post-reaction of RM@OPB. Finally, the ecological toxicity of IPM and its intermediates was predicted using the Ecological Structure Activity Relationships (ECOSAR) software. The results demonstrated that orange peel co-impregnation effectively regulated the alkalinity of red mud, with the leachate pH decreasing from 11.0 to 7.27, at impregnation time and mRM: mOP of 24h and 1:2.5, respectively. During the pyrolysis, reductive gases generated from orange peel facilitated the transformation of Fe2O3 in RM into Fe3O4 and Fe0, magnetic RM@OPB materials was manufactured. Notably, RM@OPB-800exhibited effective catalytic performance for IPM degradation, with the degradation of 8mg/L IPM achieving 96.5% in 60min (k=0.065min-1), under the experimental conditions of 0.5g/L RM@OPB-800, 1.0mmol/L PMS, and initial pH=6.7, respectively. Singlet oxygen (1O2) was identified as the dominant reactive species in the RM@OPB-800/PMS system. IPM degraded mainly through side-chain amide hydrolysis and oxidation, dehydrogenation, deiodination, and hydroxyl addition, with 12intermediates generated. ECOSAR analysis confirmed no highly toxic intermediates were formed. The findings can provide some critical insights into the resource utilization of red mud.

red mud  /  orange peels  /  peroxymonosulfate  /  advanced oxidation technology  /  iopamidol
王桂珍, 魏红, 黄雪桐, 高美娟, 张泽慧, 滕锐杰, 宋俊其, 潘峰. 生物质对赤泥碱性的调控及其催化过—硫酸盐降解碘帕醇的性能及机理. 中国环境科学, 2025 , 45 (8) : 4434 -4447 .
Gui-zhen WANG, Hong WEI, Xue-tong HUANG, mei-juan GAO, Ze-hui ZHANG, Rui-jie TENG, jun-qi SONG, Feng PAN. Regulation of red mud alkalinity by biomass and its catalytic performance and mechanism in activating peroxymonosulfate for iopamidol degradation[J]. China Environmental Science, 2025 , 45 (8) : 4434 -4447 .
  • 国家自然科学基金资助项目(51979223)
  • 榆林市科技局项目(CXY-2022-142)
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2025年第45卷第8期
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  • 接收时间:2025-01-07
  • 首发时间:2026-10-08
  • 出版时间:2025-08-20
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  • 收稿日期:2025-01-07
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国家自然科学基金资助项目(51979223)
榆林市科技局项目(CXY-2022-142)
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    1.西安理工大学,西北旱区生态水利国家重点实验室,陕西 西安 710048
    2.榆林职业技术学院,化学工程系,陕西 榆林 719000

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2种不同金属材料的力学参数
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属数
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种数
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占总种数比例
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属
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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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