石墨烯水凝胶光蒸馏装置的性能研究  

The Study on the Performance of the Solar Evaporator based on Graphene Hydrogel

作　　者：高雅雯 陈鑫[1] 汪胡翰 李锐 祝孔全 谢锋炎 张滢 Gao Yawen;Chen Xin;Wang Huhan;Li Rui;Zhu Kongquan;Xie Yanfeng;Zhang Ying(College of Environment&Safety Engineering,Fuzhou University,Fuzhou 350116;Fujian Key Laboratory of Functional Marine Sensing Materials,College of Materials and Chemical Engineering,Minjiang University,Fuzhou 350108,China)

机构地区：[1]福州大学环境与安全工程学院,福建福州350116 [2]闽江学院福建省海洋传感功能材料重点实验室,福建福州350108

出　　处：《广东化工》2022年第22期168-172,共5页Guangdong Chemical Industry

基　　金：福建省海洋传感功能材料重点实验室开放基金(MJUKF-FMSM202030);福建省教育厅中青年教师教育科研项目(JAT200061)。

摘　　要：本研究通过简单的水热法制备得到了自组装石墨烯水凝胶(SGH),并对其蒸发性能和实际应用潜力展开研究。实验结果表明,SGH孔隙丰富,全光谱吸收率>95%,具有优良的蒸发性能和脱盐能力。在一个标准太阳光下,SGH的净蒸发速率可达1.93 kg·m^(-2)·h^(-1),光热转化效率为87%,而且盐浓度对蒸发速率的抑制作用不明显。同时,本研究自制了一个阶梯式太阳能蒸馏器,根据实验室和户外条件下的蒸馏实验结果,当光强相对稳定时,该蒸馏器的时平均产水速率最高可达1.65 kg·m^(-2)·h^(-1),而且出水水质满足饮用要求。因而,本研究开发的石墨烯水凝胶光蒸馏装置是具有实际应用价值的。This work fabricated a self-assembly graphene hydrogel(SGH)by a simple hydrothermal method and investigated its evaporation performance and the application feasibility in solar water evaporation.The experimental evidences suggest that SGH with a porous structure exhibited a light absorption rate of>95%in a broad wavelength as well as an excellent evaporation performance.Under 1-sun illumination,SGH demonstrated a net evaporation rate of 1.93 kg·m^(-2)·h^(-1)and an energy conversion efficiency of 87%.Moreover,a relatively high salt concentration did not distinctly suppress the evaporation performance of SGH.On the other hand,a home-made solar evaporator based on SGH was proposed in this study.According to the experimental results obtained from the laboratory and outdoor tests,the water production rate of this evaporator could reach to 1.65 kg·m^(-2)·h^(-1)at a constant light intensity and the treated water was suitable for drinking as well.Therefore,the proposed evaporator based on SGH is believed to have an application feasibility in the solar-driven seawater desalination.

关 键 词：石墨烯水凝胶 界面蒸发 太阳能蒸馏器 海水淡化 蒸馏性能 

分 类 号：TQ[化学工程]