Hofmeister Effect‐Enhanced, Nanoparticle‐Shielded, Thermally Stable Hydrogels for Anti‐UV, Fast‐Response, and All‐Day‐Modulated Smart Windows

Thermochromic smart windows offer energy-saving potential through temperature-responsive optical transmittance adjustments, yet face challenges in achieving anti-UV radiation, fast response, and high-temperature stability characteristics for long-term use. Herein, the rational design of Hofmeister effect-enhanced, nanoparticle-shielded composite hydrogels, composed of hydroxypropylmethylcellulose (HPMC), poly(N,N-dimethylacrylamide) (PDMAA), sodium sulfate, and polydopamine nanoparticles, for anti-UV, fast-response, and all-day-modulated smart windows is reported. Specifically, a three-dimensional network of PDMAA is created as the supporting skeleton, markedly enhancing the thermal stability of pristine HPMC…

• NN
  National Natural Science Foundation of China

  Awards: 22375047, 22378068
• HE
  Higher Education Discipline Innovation Project

  Award: D17005
• NK
  National Key Research and Development Program of China

  Awards: 2022YFB3804905, 2022YFB3804900