{"title":"压电效应增强的 S 型异质结 Bi4O5I2/NaNbO3 在可见光驱动下催化降解有机污染物","authors":"","doi":"10.1016/j.seppur.2024.129830","DOIUrl":null,"url":null,"abstract":"<div><div>The piezoelectric photocatalytic system can harness mechanical energy and carriers to degrade water pollution. Utilizing strong piezoelectric materials coupled with photocatalysts effectively addresses the recombination of photogenerated carriers. In this study, Bi<sub>4</sub>O<sub>5</sub>I<sub>2</sub>, which responds to both visible light and piezoelectric stimuli, was synthesized by a solvothermal method. It was then further modified with the piezoelectric material NaNbO<sub>3</sub> to create a dual piezoelectric-responsive visible photocatalytic material Bi<sub>4</sub>O<sub>5</sub>I<sub>2</sub>/NaNbO<sub>3</sub>. Under the influence of an internal electric field and visible light irradiated induced by periodic ultrasonic vibration, the degradation rates of ARB and HCl-TC were exceeded 90 % within 90 min. The piezoelectric effect induced by ultrasonic vibration provided a robust internal electric field, significantly enhancing the separation of photoexcited carriers and thereby improving the catalytic activity of Bi<sub>4</sub>O<sub>5</sub>I<sub>2</sub>/NaNbO<sub>3</sub>. This work advances the effective purification of water pollution and offers valuable insights for developing efficient piezoelectric photocatalytic materials.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":null,"pages":null},"PeriodicalIF":8.1000,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Visible light-driven catalytic degradation of organic pollutants by S-scheme heterojunction Bi4O5I2/NaNbO3 enhanced by piezoelectric effect\",\"authors\":\"\",\"doi\":\"10.1016/j.seppur.2024.129830\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The piezoelectric photocatalytic system can harness mechanical energy and carriers to degrade water pollution. Utilizing strong piezoelectric materials coupled with photocatalysts effectively addresses the recombination of photogenerated carriers. In this study, Bi<sub>4</sub>O<sub>5</sub>I<sub>2</sub>, which responds to both visible light and piezoelectric stimuli, was synthesized by a solvothermal method. It was then further modified with the piezoelectric material NaNbO<sub>3</sub> to create a dual piezoelectric-responsive visible photocatalytic material Bi<sub>4</sub>O<sub>5</sub>I<sub>2</sub>/NaNbO<sub>3</sub>. Under the influence of an internal electric field and visible light irradiated induced by periodic ultrasonic vibration, the degradation rates of ARB and HCl-TC were exceeded 90 % within 90 min. The piezoelectric effect induced by ultrasonic vibration provided a robust internal electric field, significantly enhancing the separation of photoexcited carriers and thereby improving the catalytic activity of Bi<sub>4</sub>O<sub>5</sub>I<sub>2</sub>/NaNbO<sub>3</sub>. This work advances the effective purification of water pollution and offers valuable insights for developing efficient piezoelectric photocatalytic materials.</div></div>\",\"PeriodicalId\":427,\"journal\":{\"name\":\"Separation and Purification Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.1000,\"publicationDate\":\"2024-09-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Separation and Purification Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S138358662403569X\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation and Purification Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S138358662403569X","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Visible light-driven catalytic degradation of organic pollutants by S-scheme heterojunction Bi4O5I2/NaNbO3 enhanced by piezoelectric effect
The piezoelectric photocatalytic system can harness mechanical energy and carriers to degrade water pollution. Utilizing strong piezoelectric materials coupled with photocatalysts effectively addresses the recombination of photogenerated carriers. In this study, Bi4O5I2, which responds to both visible light and piezoelectric stimuli, was synthesized by a solvothermal method. It was then further modified with the piezoelectric material NaNbO3 to create a dual piezoelectric-responsive visible photocatalytic material Bi4O5I2/NaNbO3. Under the influence of an internal electric field and visible light irradiated induced by periodic ultrasonic vibration, the degradation rates of ARB and HCl-TC were exceeded 90 % within 90 min. The piezoelectric effect induced by ultrasonic vibration provided a robust internal electric field, significantly enhancing the separation of photoexcited carriers and thereby improving the catalytic activity of Bi4O5I2/NaNbO3. This work advances the effective purification of water pollution and offers valuable insights for developing efficient piezoelectric photocatalytic materials.
期刊介绍:
Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.