Article(id=1320100087691329819, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1320100076526097192, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20240107, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1706803200000, receivedDateStr=2024-02-02, revisedDate=1712332800000, revisedDateStr=2024-04-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1792665987178, onlineDateStr=2026-10-22, pubDate=1729353600000, pubDateStr=2024-10-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792665987178, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792665987178, creator=13701087609, updateTime=1792665987178, updator=13701087609, issue=Issue{id=1320100076526097192, tenantId=1146029695717560320, journalId=1263187385517883426, year='2024', volume='52', issue='10', pageStart='3091', pageEnd='3348', issueExtLink='null', onlineDate='null', pubDate='1729353600000', pubDateStr='2024-10-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792665984517, creator='13701087609', updateTime=1792666283372, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320101330077733325, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1320100076526097192, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320101330077733326, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1320100076526097192, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=3217, endPage=3229, ext={EN=ArticleExt(id=1320100087875879196, articleId=1320100087691329819, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Structural Regulation and Application of Halloysite Nanotubes Functional Materials, columnId=1321897889106871105, journalTitle=Journal of the Chinese Ceramic Society, columnName=Special Issue on Environmental Mineral Materials—Review, runingTitle=null, highlight=null, articleAbstract=

The effective utilization of conventional non-metallic minerals and the advancement of high-performance functional mineral materials are pivotal for the transformation and upgrading of non-metallic mineral industry. Halloysite nanotubes (HNT) as natural silico-aluminate minerals with a unique tubular structure have exceptional biocompatibility, robust adsorption capabilities, and distinct surface properties. These features make them ideal for a wide range of applications, including drug delivery, adsorption, catalysis and fire resistance. The hollow tubular structure of HNT has attracted interests, as its lumen of HNT can encapsulate a variety of functional substances, imparting diverse properties and functionalities to composite materials. Moreover, the differential properties between their inner and outer surfaces have ample opportunities for targeted modifications in subsequent applications. However, raw HNT suffers from several drawbacks, such as small specific surface area, uneven size distribution, and susceptibility to surface hydrogen bonding leading to aggregation. To expand their application scope and enhance performance across diverse fields, the structural and surface modifications of HNT are emerged as critical research areas.

Some methods such as calcination, acid/alkaline etching, and ultrasound are reported to modulate the tubular structure of HNT. HNT undergoes the phase and crystal structural transformations during calcination. The dehydroxylation and phase segregation of HNT occur at >450 ℃, leading to the formation of amorphous SiO2 and Al2O3. The temperature of >1 000 ℃ causes the disruption of tubular structure, while HNT undergoes a transformation into mullite at 1 200 ℃. Acid/alkaline etching modifies the tubular diameter, surface morphology, and chemical composition of HNT via etching aluminum/silicon on the tube walls. Acids preferentially attack the aluminum octahedral structures within HNT, causing aluminum ions to leach out and form amorphous silica spheres in-situ. Conversely, alkaline preferentially attacks the silicon tetrahedral structures, leading to preferential leaching of silicon and formation of aluminum hydroxide nanosheets. Some previous studies indicated that leaching HNT in phase-segregated state could allow for more thorough removal of aluminum or silicon from the HNT structure. Moreover, HNT with specific length ranges can be obtained via combining ultrasound fragmentation with single viscosity centrifugation processes.

Selective surface modifications on the inner, outer, and interlayer surfaces of HNT facilitate the design of functional surfaces. Silanization as a common method for modifying both the inner and outer surfaces of HNT involves the condensation of silane coupling agents with the hydroxyl groups on the HNT surface. Grafting silane coupling agents with different structures enables the specific anchoring of functional groups on the HNT surface. Electrostatic assembly utilizes the surface charge of HNT and the electrostatic attraction between materials carrying opposite charges to load desired substances onto HNT surfaces, thereby enabling the introduction of various functional substances. Intercalation methods allow for the incorporation of organic or inorganic compounds into the interlayer spaces of HNTs without disrupting their interlayer structure, thus expanding interlayer spacing or loading functional substances onto interlayer surfaces.

HNT exhibits a significant potential across various domains due to its unique structure and diverse chemical properties. The lumen and excellent biocompatibility make it an effective carrier for drugs and controlled release systems, improving drug stability and availability in biomedical applications. The high specific surface area and dual-surface nature of HNT contribute to exceptional adsorption properties, making it suitable for environmental applications such as water treatment, wastewater management, and heavy metal removal. Surface modifications or doping with transition metals enable HNT to act as catalysts, enhancing chemical reactions and controlling selectivity. With remarkable mechanical, thermal, and chemical characteristics, coupled with non-toxicity and high biocompatibility, HNT serves as nanofillers in food packaging to bolster mechanical strength, thermal stability, and extends the shelf life of perishable goods. Moreover, the heat resistance and flame-retardant properties also render it valuable in the development of high-performance fireproof coatings and composite materials. HNT has a promising potential for applications in emerging materials, energy, environmental protection, pharmaceuticals, and beyond.

Summary and prospects

The utilization of HNT is undergoing a rapid expansion with forthcoming research prospects. In China, high-purity HNT deposits are notably scarce, with most deposits primarily consisting of mixed halloysite-kaolinite deposits. Consequently, there exists a pressing necessity for the advancement of efficient HNT beneficiation or purification methodologies to segregate HNT from kaolinite. Also, there is a growing emphasis on exploring the assembly of HNT into nanomaterials with diverse functional properties, alongside a concerted effort to unravel the influence of HNT surface characteristics, morphology, and structural attributes on the performance of composite materials. Furthermore, it is imperative to align research endeavors with national strategic imperatives, bolstering the development of HNT-based composite functional materials in harmony with the national non-metallic mineral development strategy, particularly within sectors such as information technology, biotechnology, and new energy applications.

, authors=Xiaoyu JIANG, Jiafang ZHANG, Sikai ZHAO, Yanbai SHEN, authorsList=Xiaoyu JIANG, Jiafang ZHANG, Sikai ZHAO, Yanbai SHEN, authorCompany=null, correspAuthors=Yanbai SHEN, authorNote=

JIANG Xiaoyu (1997-), female, Doctoral candidate. E-mail:

, correspAuthorsNote=
SHEN Yanbai (1978-), male, Ph.D., Professor. E-mail:
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在目前的国家发展形势下,传统非金属矿物的高值化利用和高性能矿物功能材料的开发对于非金属矿产业的升级和转型尤为重要。埃洛石纳米管(HNT)是一种具有天然纳米管状结构的硅铝酸盐矿物,主要用作生产陶瓷和耐火材料。本文首先介绍了HNT的基本性质、矿物学特征、产地等情况,然后基于HNT本身的结构特征和表面性质,阐述了常见的HNT结构调控和表面改性方法,并阐述了其在医药、环境及食品包装等领域的应用及进展,最后对HNT的结构调控和应用前景进行了展望。

, authors=蒋潇宇, 张嘉方, 赵思凯, 沈岩柏, authorsList=蒋潇宇, 张嘉方, 赵思凯, 沈岩柏, authorCompany=null, correspAuthors=沈岩柏, authorNote=

蒋潇宇(1997—),女,博士研究生。

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沈岩柏(1978—),男,博士,教授。
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埃洛石纳米管功能材料的结构调控及应用
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蒋潇宇 , 张嘉方 , 赵思凯 , 沈岩柏
硅酸盐学报 | 环境矿物材料专题—综合评述 2024,52(10): 3217-3229
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硅酸盐学报 |环境矿物材料专题—综合评述 2024 , 52 (10) : 3217 -3229
埃洛石纳米管功能材料的结构调控及应用
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蒋潇宇 , 张嘉方, 赵思凯, 沈岩柏
作者信息
  • 东北大学资源与土木工程学院,沈阳 110819
通讯作者:
沈岩柏(1978—),男,博士,教授。
作者简介:

蒋潇宇(1997—),女,博士研究生。

Structural Regulation and Application of Halloysite Nanotubes Functional Materials
Xiaoyu JIANG , Jiafang ZHANG, Sikai ZHAO, Yanbai SHEN
Affiliations
  • College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
  • Corresponding Author:
    SHEN Yanbai (1978-), male, Ph.D., Professor. E-mail:

    JIANG Xiaoyu (1997-), female, Doctoral candidate. E-mail:

出版时间: 2024-10-20 doi: 10.14062/j.issn.0454-5648.20240107
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在目前的国家发展形势下,传统非金属矿物的高值化利用和高性能矿物功能材料的开发对于非金属矿产业的升级和转型尤为重要。埃洛石纳米管(HNT)是一种具有天然纳米管状结构的硅铝酸盐矿物,主要用作生产陶瓷和耐火材料。本文首先介绍了HNT的基本性质、矿物学特征、产地等情况,然后基于HNT本身的结构特征和表面性质,阐述了常见的HNT结构调控和表面改性方法,并阐述了其在医药、环境及食品包装等领域的应用及进展,最后对HNT的结构调控和应用前景进行了展望。

埃洛石  /  纳米管  /  功能材料  /  结构调控

The effective utilization of conventional non-metallic minerals and the advancement of high-performance functional mineral materials are pivotal for the transformation and upgrading of non-metallic mineral industry. Halloysite nanotubes (HNT) as natural silico-aluminate minerals with a unique tubular structure have exceptional biocompatibility, robust adsorption capabilities, and distinct surface properties. These features make them ideal for a wide range of applications, including drug delivery, adsorption, catalysis and fire resistance. The hollow tubular structure of HNT has attracted interests, as its lumen of HNT can encapsulate a variety of functional substances, imparting diverse properties and functionalities to composite materials. Moreover, the differential properties between their inner and outer surfaces have ample opportunities for targeted modifications in subsequent applications. However, raw HNT suffers from several drawbacks, such as small specific surface area, uneven size distribution, and susceptibility to surface hydrogen bonding leading to aggregation. To expand their application scope and enhance performance across diverse fields, the structural and surface modifications of HNT are emerged as critical research areas.

Some methods such as calcination, acid/alkaline etching, and ultrasound are reported to modulate the tubular structure of HNT. HNT undergoes the phase and crystal structural transformations during calcination. The dehydroxylation and phase segregation of HNT occur at >450 ℃, leading to the formation of amorphous SiO2 and Al2O3. The temperature of >1 000 ℃ causes the disruption of tubular structure, while HNT undergoes a transformation into mullite at 1 200 ℃. Acid/alkaline etching modifies the tubular diameter, surface morphology, and chemical composition of HNT via etching aluminum/silicon on the tube walls. Acids preferentially attack the aluminum octahedral structures within HNT, causing aluminum ions to leach out and form amorphous silica spheres in-situ. Conversely, alkaline preferentially attacks the silicon tetrahedral structures, leading to preferential leaching of silicon and formation of aluminum hydroxide nanosheets. Some previous studies indicated that leaching HNT in phase-segregated state could allow for more thorough removal of aluminum or silicon from the HNT structure. Moreover, HNT with specific length ranges can be obtained via combining ultrasound fragmentation with single viscosity centrifugation processes.

Selective surface modifications on the inner, outer, and interlayer surfaces of HNT facilitate the design of functional surfaces. Silanization as a common method for modifying both the inner and outer surfaces of HNT involves the condensation of silane coupling agents with the hydroxyl groups on the HNT surface. Grafting silane coupling agents with different structures enables the specific anchoring of functional groups on the HNT surface. Electrostatic assembly utilizes the surface charge of HNT and the electrostatic attraction between materials carrying opposite charges to load desired substances onto HNT surfaces, thereby enabling the introduction of various functional substances. Intercalation methods allow for the incorporation of organic or inorganic compounds into the interlayer spaces of HNTs without disrupting their interlayer structure, thus expanding interlayer spacing or loading functional substances onto interlayer surfaces.

HNT exhibits a significant potential across various domains due to its unique structure and diverse chemical properties. The lumen and excellent biocompatibility make it an effective carrier for drugs and controlled release systems, improving drug stability and availability in biomedical applications. The high specific surface area and dual-surface nature of HNT contribute to exceptional adsorption properties, making it suitable for environmental applications such as water treatment, wastewater management, and heavy metal removal. Surface modifications or doping with transition metals enable HNT to act as catalysts, enhancing chemical reactions and controlling selectivity. With remarkable mechanical, thermal, and chemical characteristics, coupled with non-toxicity and high biocompatibility, HNT serves as nanofillers in food packaging to bolster mechanical strength, thermal stability, and extends the shelf life of perishable goods. Moreover, the heat resistance and flame-retardant properties also render it valuable in the development of high-performance fireproof coatings and composite materials. HNT has a promising potential for applications in emerging materials, energy, environmental protection, pharmaceuticals, and beyond.

Summary and prospects

The utilization of HNT is undergoing a rapid expansion with forthcoming research prospects. In China, high-purity HNT deposits are notably scarce, with most deposits primarily consisting of mixed halloysite-kaolinite deposits. Consequently, there exists a pressing necessity for the advancement of efficient HNT beneficiation or purification methodologies to segregate HNT from kaolinite. Also, there is a growing emphasis on exploring the assembly of HNT into nanomaterials with diverse functional properties, alongside a concerted effort to unravel the influence of HNT surface characteristics, morphology, and structural attributes on the performance of composite materials. Furthermore, it is imperative to align research endeavors with national strategic imperatives, bolstering the development of HNT-based composite functional materials in harmony with the national non-metallic mineral development strategy, particularly within sectors such as information technology, biotechnology, and new energy applications.

halloysite  /  nanotubes  /  functional materials  /  structural regulation
蒋潇宇, 张嘉方, 赵思凯, 沈岩柏. 埃洛石纳米管功能材料的结构调控及应用. 硅酸盐学报, 2024 , 52 (10) : 3217 -3229 . DOI: 10.14062/j.issn.0454-5648.20240107
Xiaoyu JIANG, Jiafang ZHANG, Sikai ZHAO, Yanbai SHEN. Structural Regulation and Application of Halloysite Nanotubes Functional Materials[J]. Journal of the Chinese Ceramic Society, 2024 , 52 (10) : 3217 -3229 . DOI: 10.14062/j.issn.0454-5648.20240107
  • 国家自然科学基金(52274255)
  • 中央高校基本科研业务费(N2301003; N2301025)
  • 辽宁省“兴辽英才计划”项目(XLYC2202028)
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2024年第52卷第10期
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doi: 10.14062/j.issn.0454-5648.20240107
  • 接收时间:2024-02-02
  • 首发时间:2026-10-22
  • 出版时间:2024-10-20
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  • 收稿日期:2024-02-02
  • 修回日期:2024-04-06
基金
国家自然科学基金(52274255)
中央高校基本科研业务费(N2301003; N2301025)
辽宁省“兴辽英才计划”项目(XLYC2202028)
作者信息
    东北大学资源与土木工程学院,沈阳 110819

通讯作者:

沈岩柏(1978—),男,博士,教授。
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2种不同金属材料的力学参数
科
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genus
种数
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species
占总种数比例
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属
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种数
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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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