带有垂直对齐的通道的板状木海绵,用于高效和耐盐的太阳能海水淡化
Xinjian Dai1, Hao Guan1, Xin Wang1
1Research Institute of Wood Industry, Chinese Academy of Forestry, Xiangshan Road, Haidian District, Beijing 100091, P. R. China.
ACS applied materials & interfaces
|July 27, 2023
概括
研究人员设计了一种灵活的木,具有对齐的通道,用于高效的太阳能淡化. 这种创新材料具有出色的耐盐性和高蒸发率,为净化高盐提供了有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 太阳能辅助界面蒸发是净化和淡化水的关键技术.
- 木材的自然特性使其成为太阳能海水淡化的一个可持续基板,但存在限制.
- 挑战包括实现高蒸发率和由于木材的孔状结构而具有盐耐性.
研究的目的:
- 使用木材开发一种高效且耐盐的太阳能蒸发器.
- 为了克服天然木材毛孔结构的局限性,提高海水淡化效果.
- 为了研究一种用于太阳能净化水的新型状木海绵架构.
主要方法:
- 用天然木材进行结构工程,以创建具有垂直对齐通道的板状建筑.
- 用碳纳米管 (CNTs) 覆盖木海绵的表面.
- 在1个太阳辐射下测试蒸发器在超盐盐水中持续太阳淡化过程中的性能.
主要成果:
- 与天然木材相比,状木表现出较快的水运输和较低的热性能.
- 垂直对齐的通道促进了高效的流体对流,扩散和盐交换,防止了表面盐的积累.
- 蒸发器在7天内在20%重量%的盐水中表现出异常的耐盐性,实现了高蒸发率 (1.38-1.43 kg m−2 h−1).
结论:
- 开发的状木海绵是一种高效且耐盐的太阳能蒸发器.
- 木材的结构改造为先进的太阳能淡化提供了一个有前途的战略.
- 这种方法有效地解决了净化高盐盐水的挑战.
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