Carboxycellulose Nanofibers from Underutilized Biomasses for Water Purification

来自未充分利用的生物质的羧纤维素纳米纤维用于水净化

• 批准号: 1808690
• 负责人: Benjamin Hsiao
• 金额: $ 54万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-05-01 至 2022-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1808690&HistoricalAwards=false
• 关键词: Carboxycellulose; Nanofibers; Underutilized; Biomasses; Water

NON-TECHNICAL SUMMARY:This project aims to enhance our understanding of the structure-and-property relationships of carboxycellulose nanofibers (CNFs) that can be extracted from a diverse range of underutilized biomass resources (e.g. agricultural waste, grass, weeds and shrubs), as well as explore their potential usage for water purification. The intellectual merit of this proposal entails: (1) The preparation of new, high-valued CNF-based water purification materials from low- or no-valued biomasses, using a simple nitro-oxidation method with significant benefits in terms of energy and chemical savings. (2) The fundamental knowledge gained from the synthetic and characterization aspects, which can enable the development of new and innovative water purification technologies using CNFs as effective adsorbents and/or filtration materials toward low-cost and sustainable water treatments. This project will provide interdisciplinary training to graduate and undergraduate students, as well as research experiences and outreach opportunities to high-school students and teachers. It will also be integrated with broader activities on sustainability and clean water aimed at improving the quality-of-life for humankind.TECHNICAL SUMMARY:The aim of this research is to investigate the colloidal and flow behavior of carboxycellulose nanofibers (CNFs) prepared directly from a broad range of untreated (raw) biomasses. The planned research activities will involve the investigation of the relationships of structure, property and chemical conditions for extraction of CNFs from varying underutilized non-wood plant fiber sources using a newly developed nitro-oxidation method. They will be followed by the study of the colloidal behavior and flow properties of extracted CNFs, consisting of different aspect ratios and charge densities, in aqueous suspensions, under different conditions of counterion valency, ionic strength and pH level. Techniques to be used will be primarily synchrotron X-ray scattering and high-resolution transmission electron microscopy in combination with mixing flow-cell and rheology. Lastly, new water purification technologies will be developed using CNFs as adsorbents and/or filtration materials to treat a broad range of water contamination problems, especially due to toxic metal ions, to advance effective, low-cost and sustainable water purification solutions.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

非技术摘要：该项目旨在增强我们对羧基纤维纤维（CNF）的结构和核关系关系的理解，这些关系可以从各种未充分利用的生物量资源（例如农业废物，草，草，杂草）中提取，这些资源可从多样化的生物量不足的生物量资源中提取。以及探索其潜在的水净化用途。 该提案的智力优点需要：（1）使用一种简单的硝基氧化方法来制备从低或无值的生物质中制备新的，基于CNF的基于CNF的水纯化材料储蓄。 （2）从合成和表征方面获得的基本知识，这可以使使用CNF作为有效的吸附剂和/或过滤材料来开发新的和创新的水净化技术，以低成本和可持续的水处理。 该项目将为毕业生和本科生提供跨学科的培训，并为高中生和老师提供研究经验和外展机会。 它还将与旨在改善人类生活质量的可持续性和清洁水的更广泛的活动相结合。技术摘要：这项研究的目的是调查直接根据羧基纤维纤维（CNF）制备的胶体和流动行为多种未经处理的（原始）生物量。 计划的研究活动将涉及使用新开发的硝基氧化方法从不同充分利用的非木植物纤维来源提取CNF的结构，性质和化学条件的关系。 随后，将研究提取的CNF的胶体行为和流动性能，包括不同的宽高比和电荷密度，在水性悬浮液中，在不同的抗离子价，离子强度和pH水平的不同条件下。 要使用的技术将主要是同步X射线散射和高分辨率透射电子显微镜与混合流细胞和流变学结合使用。 最后，将使用CNF作为吸附剂和/或过滤材料开发新的净水技术，以治疗广泛的水污染问题，尤其是由于有毒金属离子，以提高有效，低成本和可持续的水纯化解决方案。反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响审查标准来评估值得支持。

项目成果

Membrane Bioreactors for Nitrogen Removal from Wastewater: A Review

• DOI: 10.1061/(asce)ee.1943-7870.0001682
• 发表时间: 2020-05-01
• 期刊: JOURNAL OF ENVIRONMENTAL ENGINEERING
• 影响因子: 2.2
• 作者: Mao, Xinwei;Myavagh, Pejman Hadi;Walker, Harold W.
• 通讯作者: Walker, Harold W.

Facile synthesis of TiO2/CNC nanocomposites for enhanced Cr(VI) photoreduction: Synergistic roles of cellulose nanocrystals

• DOI: 10.1016/j.carbpol.2020.115838
• 发表时间: 2020-04-01
• 期刊: CARBOHYDRATE POLYMERS
• 影响因子: 11.2
• 作者: Li, Yanxiang;Zhang, Jinju;Hsiao, Benjamin S.
• 通讯作者: Hsiao, Benjamin S.

Biofouling-resistant nanocellulose layer in hierarchical polymeric membranes: Synthesis, characterization and performance

• DOI: 10.1016/j.memsci.2019.02.059
• 发表时间: 2019-06-01
• 期刊: JOURNAL OF MEMBRANE SCIENCE
• 影响因子: 9.5
• 作者: Hadi, Pejman;Yang, Mengying;Hsiao, Benjamin S.
• 通讯作者: Hsiao, Benjamin S.

Morphology and Flow Behavior of Cellulose Nanofibers Dispersed in Glycols

• DOI: 10.1021/acs.macromol.9b01036
• 发表时间: 2019-07
• 期刊: Macromolecules
• 影响因子: 5.5
• 作者: Ruifu Wang;T. Rosén;Chengbo Zhan;S. Chodankar;Jiahui Chen;P. Sharma;S. Sharma;Tianbo Liu;B. Hsiao

Nanostructured all-cellulose membranes for efficient ultrafiltration of wastewater

• DOI: 10.1016/j.memsci.2022.120422
• 发表时间: 2022-05
• 期刊: Journal of Membrane Science
• 影响因子: 9.5
• 作者: Mengying Yang;Sarah Lotfikatouli;Yvonne Chen;Tony Li;Hongyang Ma;X. Mao;B. Hsiao