An all-in-one FeO_(x)-rGO sponge fabricated by solid-phase microwave thermal shock for water evaporation and purification  

作　　者：Youkun Sun Xiuwen Zhao Xueling Song Jinchen Fan Junhe Yang Yingchun Miao Shuning Xiao 

机构地区：[1]School of Materials and Chemistry,University of Shanghai for Science and Technology,Shanghai 200093,China [2]College of Chemistry and Environmental Science,Qujing Normal University,Qujing 655011,China [3]Prytula Igor Collaborate Innovation Center for Diamond,Shanghai Jian Qiao University,Shanghai 201306,China

出　　处：《Journal of Environmental Sciences》2024年第4期671-683,共13页环境科学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.22106105);the Innovation Program of Shanghai Municipal Education Commission(No.2019–01–07–00-E00015);the Shanghai Scientific and Technological Innovation Project(Nos.21DZ1206300 and 19JC1410402);the Scientific and Technological Innovation Team for Green Catalysis and Energy Material in Yunnan Institutions of Higher Learning,General Project of Yunnan Province Science and Technology Department(No.202101BA070001–050);the Central Guidance on Local Science and Technology Development Fund of Shanghai(No.YDZX20213100003002);the Science and Technology Commission of Shanghai Municipality(No.20060502200);the Program for Professor of Special Appointment(Eastern Scholar)at Shanghai Institutions of Higher Learning,and Shanghai Sailing Program(No.20YF1432200)。

摘　　要：Developing high-efficiency photothermal seawater desalination devices is of significant importance in addressing the shortage of freshwater.Despite much effort made into photothermal materials,there is an urgent need to design a rapidly synthesized photothermal evaporator for the comprehensive purification of complex seawater.Therefore,we report on all-in-one FeOx-rGO photothermal sponges synthesized via solid-phase microwave thermal shock.The narrow band gap of the semiconductor material Fe_(3)O_(4) greatly reduces the recombination of electron-hole pairs,enhancing non-radiative relaxation light absorption.The abundantπorbitals in rGO promote electron excitation and thermal vibration between the lattices.Control of the surface hydrophilicity and hydrophobicity promotes salt resistance while simultaneously achieving the purification of various complex polluted waters.The optimized GFM-3 sponge exhibitedan enhanced photothermal conversion rate of 97.3% and a water evaporation rate of 2.04 kg/(m^(2)·hr),showing promising synergistic water purification properties.These findings provide a highly efficient photothermal sponge for practical applicationsof seawater desalination and purification,as well as develop a super-rapid processing methodology for evaporation devices.

关 键 词：DESALINATION Photothermal device Microwave synthesis Water purification FeO_(x)-rGO 

分 类 号：P747[天文地球—海洋科学]