Wenyuan Han

Sep 10, 2023 | mdpi.com | Zhibin Wang |Hong Zhao |Xinyu Luo |Wenyuan Han

1. IntroductionAs the energy crisis emerges, waste heat recovery has become one of the effective ways to solve the problem of energy shortage [1]. Thermoelectric materials play a pivotal role in the waste-heat-collection process. Thermoelectric materials have broad application prospects in fields such as isotope batteries for aerospace, high-temperature flue-gas-waste-heat recovery power generation, high-temperature steel billet waste-heat-power generation, and geothermal power generation.

May 24, 2023 | 4spepublications.onlinelibrary.wiley.com | Chen Kun Yu |Degang Li |Wenyuan Han |Yifan Kong

Abstract Titanium dioxide (TiO2) has a strong oxidation effect when absorbing ultraviolet light. Therefore, when TiO2 is used as a light stabilizer in polyvinyl chloride (PVC), it will cause the photodegradation of PVC. Herein, carbon quantum dots (CQDs) coated TiO2 composite (TiO2@CQDs) was prepared by a one-step hydrothermal method.