Chemical Scissors Tailored Nano‑Tellurium with High‑Entropy Morphology for Efficient Foam‑Hydrogel‑Based Solar Photothermal Evaporators  

作　　者：Chenyang Xing Zihao Li Ziao Wang Shaohui Zhang Zhongjian Xie Xi Zhu Zhengchun Peng 

机构地区：[1]State Key Laboratory of Radio FrequencyHeterogeneous Integration,Shenzhen University,Shenzhen 518060,People’s Republic of China [2]Center for Stretchable Electronics and NanoSensors,College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen 518060,People’s Republic of China [3]School of Science and Engineering,The Chinese University of Hong Kong,Shenzhen,Shenzhen 518172,People’s Republic of China [4]Institute of Pediatrics,Shenzhen Children’s Hospital,Shenzhen 518038,Guangdong,People’s Republic of China [5]International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education,Institute of Microscale Optoelectronics,Shenzhen University,Shenzhen 518060,People’s Republic of China

出　　处：《Nano-Micro Letters》2024年第3期149-168,共20页纳微快报（英文版）

基　　金：the Science and Technology Innovation Council of Shenzhen(Grant Nos.JCYJ20200109105212568,KQTD20170810105439418,JCYJ20200109114237902,20200812203318002,and 20200810103814002);the National Natural Science Foundation of China(Grant No.12274197);the Guangdong Basic and Applied Basic Research Foundation(Grant Nos.2023A1515030240,2019A1515010790,2021A0505110015).

摘　　要：The development of tellurium(Te)-based semiconductor nanomaterials for efficient light-to-heat conversion may offer an effective means of harvesting sunlight to address global energy concerns.However,the nanosized Te(nano-Te)materials reported to date suffer from a series of drawbacks,including limited light absorption and a lack of surface structures.Herein,we report the preparation of nano-Te by electrochemical exfoliation using an electrolyzable room-temperature ionic liquid.Anions,cations,and their corresponding electrolytic products acting as chemical scissors can precisely intercalate and functionalize bulk Te.The resulting nano-Te has high morphological entropy,rich surface functional groups,and broad light absorption.We also constructed foam hydrogels based on poly(vinyl alcohol)/nano-Te,which achieved an evaporation rate and energy efficiency of 4.11 kg m^(−2)h^(−1)and 128%,respectively,under 1 sun irradiation.Furthermore,the evaporation rate was maintained in the range 2.5-3.0 kg m^(−2)h^(−1)outdoors under 0.5-1.0 sun,providing highly efficient evaporation under low light conditions.

关 键 词：TELLURIUM High entropy Electrochemical modification Solar absorption Evaporation rate 

分 类 号：TK519[动力工程及工程热物理—热能工程] TB383.1[一般工业技术—材料科学与工程]