Article(id=1297161233992540755, tenantId=1146029695717560320, journalId=1296125381406982186, issueId=1297161216049308076, articleNumber=null, orderNo=null, doi=10.13550/j.jxhg.20250257, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1744387200000, receivedDateStr=2025-04-12, revisedDate=null, revisedDateStr=null, acceptedDate=1748966400000, acceptedDateStr=2025-06-04, onlineDate=1787196938274, onlineDateStr=2026-08-20, pubDate=1778774400000, pubDateStr=2026-05-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1787196938274, onlineIssueDateStr=2026-08-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1787196938274, creator=13701087609, updateTime=1787196938274, updator=13701087609, issue=Issue{id=1297161216049308076, tenantId=1146029695717560320, journalId=1296125381406982186, year='2026', volume='43', issue='5', pageStart='929', pageEnd='1184', issueExtLink='null', onlineDate='null', pubDate='1778774400000', pubDateStr='2026-05-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1787196933996, creator='13701087609', updateTime=1787202244949, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1297183491922354645, tenantId=1146029695717560320, journalId=1296125381406982186, issueId=1297161216049308076, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1297183491922354646, tenantId=1146029695717560320, journalId=1296125381406982186, issueId=1297161216049308076, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=998, endPage=1007, ext={EN=ArticleExt(id=1297161234193867348, articleId=1297161233992540755, tenantId=1146029695717560320, journalId=1296125381406982186, language=EN, title=Preparation of coal gangue-based water retention agent for improving saline-alkali soil, columnId=null, journalTitle=Fine Chemicals, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Coal gangue-based water-retaining agent (CG-WRG) was prepared using coal gangue-based humic acid (CG-HA), sodium carboxymethyl cellulose (CMC-Na), sodium alginate (SA), and acrylic acid (AA) as raw materials, potassium persulfate (KPS) as initiator, and N,N'-methylenebisacrylamide (MBA) as crosslinking agent, and then characterized by FTIR and SEM. The influence of KPS dosage, MBA dosage, neutralization degree of AA and m(AA)∶m(SA)∶m(CMC-Na)∶m(CG-HA) on the water absorbency and water retention of CG-WRG was evaluated through single-factor experiments, followed by exploration on the environmental adaptability of CG-WRG under different environmental conditions (temperature, pH, type and mass concentration of metal cations). The water and fertilizer retention effects were further studied through leaching experiments and water-fertilizer evaporation experiments in saline-alkali soil. The results showed that under the optimal CG-WRG preparation conditions of KPS dosage 0.25 g, MBA dosage 0.06 g, 65% neutralization AA 9.00 g, and m(AA)∶m(SA)∶m(CMC-Na) ∶m(CG-HA)=9∶1∶1∶1, the water absorbency of CG-WRG reached 370.1 g/g, and the water retention was 94.1 g/g. CG-WRG exhibited good water retention effects at temperatures ranging from 5 to 60 ℃, with a higher water absorbency (228.6 g/g) in the alkaline environment pH=11 than in the acidic environment pH=3 (154.4 g/g). The water retention of saline-alkali soil with 2% CG-WRG (based on the mass of saline-alkali soil）was 55%. After being buried in soil for 16 and 20 d, the degradation of CG-WRG was 10.3% and 15.8%, respectively. When the CG-WRG dosage was increased from 0.05% to 0.20%, the cumulative loss of potassium decreased by 37.1%~58.8%, and the loss of nitrogen decreased by 15.7%~30.4%. When the CG-WRG dosage reached 0.20%, the soil water content increased by 4.67% compared with the control group. When the CG-WRG dosage was 0.05%, the contents of and in the soil reached the maximum (7.935 and 1.529 mg). The seedling germination with CG-WRG addition was 90%, and the average root length was 2.7 cm, higher than that with no CG-WRG, which was 50% and 1.0 cm, respectively. In addition, the germination index of the CG-WRG addition group was 486%.

, authors=Yibo WANG^{1, 2}, Guoping HAN², Huidong XIE^{2, *}, Lizhen XU¹, Shujuan WANG^{1, *}, Jia LIU³, authorsList=Yibo WANG, Guoping HAN, Huidong XIE, Lizhen XU, Shujuan WANG, Jia LIU, authorCompany=null, correspAuthors=Huidong XIE, Shujuan WANG, 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=1297161235200500317, articleId=1297161233992540755, tenantId=1146029695717560320, journalId=1296125381406982186, language=CN, title=煤矸石源保水剂的制备及改良盐碱土性能, columnId=1297161221933913088, journalTitle=精细化工, columnName=功能材料, runingTitle=null, highlight=null, articleAbstract=

以煤矸石中提取的腐植酸（CG-HA）、羧甲基纤维素钠（CMC-Na）、海藻酸钠（SA）和丙烯酸（AA）为原料，过硫酸钾（KPS）为引发剂，N,N′-亚甲基双丙烯酰胺（MBA）为交联剂，制备了煤矸石源保水剂（CG-WRG）。采用FTIR、SEM对CG-WRG进行了表征，通过单因素实验考察了KPS用量、MBA用量、AA中和度、m(AA)∶m(SA)∶m(CMC-Na)∶m(CG-HA)对CG-WRG吸水倍率、保水倍率的影响，探究了不同环境条件（温度、pH、金属阳离子类型及质量浓度）对CG-WRG环境适应性的影响，通过其在盐碱土中的淋溶实验和水肥蒸发实验研究了其保水保肥效果。结果表明，CG-WRG的最佳制备条件为KPS用量0.25 g、MBA用量0.06 g、中和度为65%的AA用量9.00 g、m(AA)∶m(SA)∶m(CMC-Na)∶m(CG-HA)=9∶1∶1∶1，在该条件下制备的CG-WRG吸水倍率可达370.1 g/g，保水倍率为94.1 g/g。CG-WRG在5~60 ℃都具有良好的保水效果，在碱性环境pH=11的吸水倍率（228.6 g/g）高于酸性环境pH=3（154.4 g/g）。CG-WRG用量为2%（以盐碱土质量计）的土壤持水率为55%。埋置在土壤中16和20 d后，CG-WRG的降解率分别为10.3%和15.8%。CG-WRG用量由0.05%增至0.20%时，钾元素5次累积损失量降幅达37.1%~58.8%，氮元素损失量降幅为15.7%~30.4%，且当CG-WRG用量为0.20%时，土壤含水率比空白组同比提升4.67%。当CG-WRG用量为0.05%时，土壤中和含量达到最大（7.935和1.529 mg）。添加CG-WRG的幼苗发芽率为90%，平均根长为2.7 cm，发芽指数为486%，而不添加CG-WRG的幼苗发芽率为50%，平均根长为1.0 cm。

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王逸博（1997—），男，硕士生，E-mail: 840962054@qq.com。

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王逸博（1997—），男，硕士生，E-mail: 840962054@qq.com。

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