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| 1 | Application of graphene oxides and graphene oxide-based nanomaterials in radionuclide removal from aqueous solutions显示文摘With the fast development of nanoscience and nanotechnology,the nanomaterials have attracted multidisciplinary interests.The high specific surface area and large numbers of oxygen-containing functional groups of graphene oxides(GOs) make them suitable in the preconcentration and solidification of radionuclides from wastewater.In this paper,mainly based on the recent work carried out in our laboratory,the efficient elimination of radionuclides using GOs and GO-based nanomaterials as adsorbents are summarized and the interaction mechanisms are discussed from the results of batch techniques,surface complexation modeling,spectroscopic analysis and theoretical calculations.This review is helpful for the understanding of the interactions of radionuclides with GOs and GO-based nanomaterials,which is also crucial for the application of GOs and GO-based nanomaterials in environmental radionuclide pollution management and also helpful in nuclear waste management. | Xiangxue Wang Shujun Yu Jie Jin Hongqing Wang Njud S. Alharbi Ahmed Alsaedi Tasawar Hayat Xiangke Wang | 2016 | Science Bulletin2016，61，20： | 17 |
| 2 | One-pot synthesis of graphene oxide and Ni-Al layered double hydroxides nanocomposites for the efficient removal of U(VI) from wastewater显示文摘Graphene oxide and Ni-Al layered double hydroxides(GO@LDH) nanocomposites were synthesized via a one-pot hydrothermal process,and characterized by X-ray diffraction(XRD),Fourier transformed infrared spectroscopy(FTIR),scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS) and Raman spectroscopy in detail.The exploration of U(VI) sorption on GO@LDH surface was performed as a function of ionic strength,solution pH,contact time,U(VI) initial concentrations and temperature.Results of Langmuir isotherms showed that the sorption capacity of GO@LDH(160 mg/g) was much higher than those of LDH(69 mg/g) and GO(92 mg/g).The formed surface complexes between surface oxygen-containing functional groups of GO@LDH and U(VI) turned out to be the interaction mechanism of U(VI) with GO@LDH.According to the thermodynamic studies results,the sorption interaction was actually a spontaneous and endothermic chemical process.The sorption isotherms were better fitted with the Langmuir model compared with other models,which suggested the interaction was mainly dominated by mono layer coverage.The GO@LDH nanocomposites provide potential applications as adsorbents in the enrichment of radionuclides from wastewater in nuclear waste management and environmental remediation. | Shujun Yu Jian Wang Shuang Song Kunyu Sun Jun Li Xiangxue Wang Zhongshan Chen Xiangke Wang | 2017 | Science China Chemistry2017，60，3： | 12 |
| 3 | 氧化石墨烯复合材料吸附铀的研究进展显示文摘氧化石墨烯由于具有超大的比表面积、高强度和化学稳定性好等优点,其在环保领域作为含铀废水吸附材料的应用潜能备受关注。本文综述了近年来石墨烯基复合材料吸附水溶液中铀的研究现状及进展,介绍了石墨烯基复合材料对铀的吸附性能,分析了溶液pH值、温度、离子强度、接触时间和吸附剂用量等因素对吸附效果影响的原理,阐述了通过表面络合模型,光谱分析和理论计算等方法探讨氧化石墨烯复合材料的微观形貌结构与铀吸附效果之间的内在联系,最后研究了氧化石墨烯复合材料吸附铀研究中面临的挑战,对石墨烯材料与轴的相互作用机理及其在环保方面的开发应用进行了展望。 | 刘红娟 谢水波 张希晨 刘迎九 曾涛涛 | 2018 | 材料工程2018，46，5： | 8 |
| 4 | 氧化石墨烯及其复合材料对水中放射性核素的吸附显示文摘在核能和核技术的快速发展过程及应用中产生了大量放射性废水,其对生态环境会造成潜在的污染,因此对放射性废水处理技术的研究对保护环境有着重要的意义。氧化石墨烯及其复合材料具有比表面积高、官能团丰富、吸附能力强、化学稳定性好等优点,在放射性废水处理领域受到广泛关注。本文综述了近年来有关氧化石墨烯及其复合材料对水中放射性核素吸附的研究现状及进展,介绍了氧化石墨烯及其复合材料对放射性核素的吸附容量、吸附等温模型、吸附热力学、影响因素和吸附机理。最后分析了氧化石墨烯及其复合材料处理放射性核素在辐射稳定性和高吸附选择性等方面面临的问题和挑战,探讨了推动该类材料今后实际放射性废水处理中工程应用的重点研究方向,如完善的产业体系和积极研发相匹配的成套水处理工艺及设备等。 | 刘红娟 吴仁杰 谢水波 刘迎九 | 2019 | 材料工程2019，47，10： | 7 |
| 5 | Ozonated graphene oxides as high efficient sorbents for Sr(Ⅱ) and U(Ⅵ) removal from aqueous solutions显示文摘Ozone was used to oxidize graphene oxides(GO) to generate ozonated graphene oxides(OGO) with higher oxygen-containing functional groups. The as-prepared OGO was characterized by Fourier transformed infrared spectroscopy(FTIR), scanning electron microscopy(SEM) and X-ray photoelectron spectroscopy(XPS). Based on the results of potentiometric acid-base titrations, the total carboxylic acid concentration on OGO surface was calculated to be 3.92 mmol/g, which was much higher than that on GO surface. The results of adsorption experiments indicated that the adsorption capacities of OGO for Sr(II) and U(VI) removal were improved significantly after ozonization. | Xia Liu Xiangxue Wang Jiaxing Li XiangkeWang | 2016 | Science China Chemistry2016，59，7： | 6 |
| 6 | 无机吸附材料处理放射性废水中铀的研究进展显示文摘核能与核工业的发展不可避免地会产生大量的含铀放射性废水。随着材料科学的发展,新型吸附材料不断出现,吸附法处理放射性废水近年来得到了特别关注。目前研究的无机吸附材料可分为无机矿物、金属氧化物、碳基材料等。通过接枝、交联、等离子体、复合等技术处理,在吸附材料表面修饰含氧官能团或含氮官能团,可提高对铀的吸附性能和选择性。铀的吸附机理多表现为离子交换和表面络合作用。本文主要介绍了无机吸附材料处理放射性废水中铀的研究进展,并对今后的研究方向提出了建议。 | 于静 王建龙 | 2018 | 核化学与放射化学2018，40，2： | 6 |
| 7 | Understanding the adsorption mechanism of Ni(II) on graphene oxides by batch experiments and density functional theory studies显示文摘The graphene oxides(GOs) have attracted multidisciplinary study because of their special physicochemical properties. The high surface area and large amounts of oxygen-containing functional groups make GOs suitable materials for the efficient elimination of heavy metal ions from aqueous solutions. Herein the sorption of Ni(II) on GOs was studied using batch experiments, and the results showed that the sorption of Ni(II) is strongly dependent on p H and ionic strength at pH<8, and independent of ionic strength at pH>8. The sorption of Ni(II) is mainly dominated by outer-sphere surface complexation and ion exchange at low p H, and by inner-sphere surface complexation at high p H. The interaction of Ni(II) with GOs was also investigated by theoretical density functional theory(DFT) calculations, and the results show that the sorption of Ni(II) on GOs is mainly attributed to the –COH and –COC groups and the DFT calculations show that Ni(II) forms stable GO_Ni_triplet structure with the binding energy of -39.44 kcal/mol, which is in good agreement with the batch sorption experimental results. The results are important for the application of GOs as adsorbents in the efficient removal of Ni(II) from wastewater in environmental pollution cleanup. | Yuantao Chen WeiZhang Shubin Yang Aatef Hobiny Ahmed Alsaedi Xiangke Wang | 2016 | Science China Chemistry2016，59，4： | 6 |
| 8 | Graphene oxides for simultaneous highly efficient removal of trace level radionuclides from aqueous solutions显示文摘Graphene oxides(GOs) were synthesized via modified Hummers method, and were applied as adsorbents to remove radionuclides from large volumes of aqueous solutions. The single and competitive sorption of four radionuclides(i.e., U(VI), 152+154Eu(III), 85+89Sr(II) and 134Cs(I)) on the GOs from aqueous solutions were investigated as a function of p H, ionic strength and radionuclide initial concentrations using batch technique. The results showed that the GOs had much higher sorption capacity than many other contemporary materials, for the preconcentration of radionuclides from large volumes of aqueous solutions. The sorption of radionuclides on GOs obeyed the Langmuir model, and was mainly attributed to surface complexation via the coordination of radionuclides with the oxygen-containing functional groups on GO surfaces. The competitive sorption results indicated that the selectivity sorption capacities were U(VI)>Eu(III)>Sr(II)>Cs(I). The GOs are suitable materials for the efficient removal and preconcentration of radionuclides from aqueous solutions in nuclear waste management and environmental pollution cleanup. | Xiangxue Wang Zhongshan Chen Xiangke Wang | 2015 | Science China Chemistry2015，58，11： | 5 |
| 9 | β-环糊精-氧化石墨烯超分子杂化体的构筑及应用进展显示文摘β-环糊精是由7个D-吡喃葡萄糖单元通过α-1,4-糖苷键键连成环的超分子主体分子,'内疏水、外亲水'的独特结构赋予了其优异的分子识别能力;氧化石墨烯类材料凭借其优良特性成为近几年的研究热点。由β-环糊精和氧化石墨烯构筑的超分子杂化体在兼具二者特有性能的基础上又有新功能的引入。本文综述了β-环糊精-氧化石墨烯超分子杂化体的构筑方式,按二者间的连接方式,分别为共价键和非共价键两种连接方式,其中通过共价键连接是目前最主要的构筑方式;此外对β-环糊精-氧化石墨烯超分子杂化体的特征和表征进行了简述。同时对β-环糊精-氧化石墨烯超分子杂化体在水污染处理、电化学检测、药物控释和催化等领域的应用进展进行了综述。最后对该超分子杂化体在构筑和应用上的发展趋势进行了展望。 | 夏道宏 段尊斌 胡尊龙 丁雪春 朱丽君 项玉芝 | 2019 | 化工进展2019，38，4： | 3 |
| 10 | 固相萃取分离铀显示文摘铀是重要的核工业原料,也是一种有较强化学和生物毒性的重金属。从各类含铀水体系中分离和回收铀对缓解铀资源短缺,保护人类健康和生态环境安全都具有重要的科学和实际意义。本文简要回顾和评述了近15年来具有代表性的新型固相萃取材料及其在铀分离方面的应用研究,并对相关材料在铀分离领域的应用前景进行了分析和展望。 | 李波 马利建 罗宁 李首建 陈云明 张劲松 | 2020 | 化学进展2020，32，9： | 2 |
| 11 | 氧化石墨烯基材料在放射性废水处理中的应用显示文摘综述了国内外利用氧化石墨烯基复合材料处理放射性废水的研究进展,重点介绍了氧化石墨烯的特性、对核素离子的吸附性能及改性方式,并对该类材料应用于工程实际亟待解决的问题进行了剖析,为后续开展相关研究工作提供技术参考。 | 鲍萍 王晓伟 门金凤 黄海 | 2023 | 现代化工2023，43，1： | 0 |
| 12 | 石墨烯基复合材料的制备及对铀的吸附性能研究进展显示文摘铀资源是一个国家核工业发展的重要战略资源,铀资源的供应关系到核工业的安全健康稳定可持续发展。石墨烯由于具有超大的比表面积、高强度和化学稳定性好等优点,作为含铀废料的吸附材料的应用潜能备受关注。本文综述了近年来石墨烯基复合材料吸附水溶液中铀的研究现状及进展,介绍了石墨烯基复合材料对铀的吸附性能,分析了溶液pH值,温度,离子强度,接触时间和吸附剂用量等因素对吸附效果产生的影响,最后基于研究现状,对吸附剂种类的选择进行了展望。 | 王挺 李波 张庆宇 郭晋轩 宋强 高于洋 赵峰 | 2022 | 当代化工研究2022，，9： | 0 |
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